CN106555083A - A kind of all aluminium alloy aerial condutor and preparation method thereof - Google Patents
A kind of all aluminium alloy aerial condutor and preparation method thereof Download PDFInfo
- Publication number
- CN106555083A CN106555083A CN201611102255.4A CN201611102255A CN106555083A CN 106555083 A CN106555083 A CN 106555083A CN 201611102255 A CN201611102255 A CN 201611102255A CN 106555083 A CN106555083 A CN 106555083A
- Authority
- CN
- China
- Prior art keywords
- aluminium alloy
- melt
- aluminium
- less
- alloy melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 89
- 238000002360 preparation method Methods 0.000 title description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 47
- 238000005275 alloying Methods 0.000 claims abstract description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000000137 annealing Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 13
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 12
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 11
- 238000007670 refining Methods 0.000 claims abstract description 10
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 9
- 238000010622 cold drawing Methods 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 229910052702 rhenium Inorganic materials 0.000 claims abstract description 6
- 230000004083 survival effect Effects 0.000 claims abstract 2
- 239000000956 alloy Substances 0.000 claims description 39
- 229910045601 alloy Inorganic materials 0.000 claims description 39
- 239000000843 powder Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 18
- 230000008018 melting Effects 0.000 claims description 18
- 229910018580 Al—Zr Inorganic materials 0.000 claims description 10
- 230000032683 aging Effects 0.000 claims description 9
- 229910018125 Al-Si Inorganic materials 0.000 claims description 8
- 229910018520 Al—Si Inorganic materials 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 8
- 238000000498 ball milling Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 2
- 235000010210 aluminium Nutrition 0.000 claims 7
- 239000004411 aluminium Substances 0.000 claims 5
- 238000009413 insulation Methods 0.000 claims 4
- 238000002156 mixing Methods 0.000 claims 3
- 229910018143 SeO3 Inorganic materials 0.000 claims 2
- 239000005030 aluminium foil Substances 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 2
- 230000000996 additive effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000002513 implantation Methods 0.000 claims 1
- 238000004093 laser heating Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 229910052707 ruthenium Inorganic materials 0.000 abstract 1
- 239000000047 product Substances 0.000 description 23
- 238000005245 sintering Methods 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 239000011812 mixed powder Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000000713 high-energy ball milling Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001257 Nb alloy Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Conductive Materials (AREA)
Abstract
本发明提供一种全铝合金架空导线及其制备的方法，所述全铝合金架空导线的成分由Al、Mg、Si、Mo、Re、Se、Sc、Nb、Ru、Zr构成，其的维氏硬度不小于100HV，室温抗拉强度不小于330Mpa，伸长率不小于7%，导电率不小于57%IACS；产品长时间使用温度不小于100℃，通过230℃连续加热1小时后,强度残存率不低于85%。本发明所述的方法，通过三次合金化、变质处理、熔体精炼、铸态杆料退火处理、冷拉拔等步骤处理获得，最终实现具有优良物化性能的产品。本发明采用普通工业级铝锭为原料生产，生产成本与常规铝合金导线成本相当，而其维氏硬度、室温抗拉强度、伸长率，导电率较现有产品显著提高。The invention provides an all-aluminum alloy overhead wire and a method for preparing the same. The composition of the all-aluminum alloy overhead wire is composed of Al, Mg, Si, Mo, Re, Se, Sc, Nb, Ru, and Zr. Hardness not less than 100HV, tensile strength at room temperature not less than 330Mpa, elongation not less than 7%, electrical conductivity not less than 57%IACS; long-term use temperature of the product is not less than 100°C, after continuous heating at 230°C for 1 hour, the strength The survival rate is not less than 85%. The method of the present invention is obtained through three steps of alloying, modification treatment, melt refining, as-cast rod annealing treatment, cold drawing, etc., and finally realizes a product with excellent physical and chemical properties. The invention adopts ordinary industrial grade aluminum ingots as raw materials for production, and the production cost is equivalent to that of conventional aluminum alloy wires, while its Vickers hardness, room temperature tensile strength, elongation and electrical conductivity are significantly improved compared with existing products.
Description
技术领域technical field
本发明属于输电设备技术领域，尤其涉及架空输电线材及其制备技术，具有高强度和高导电率，具体涉及一种全铝合金导线及其制备方法。The invention belongs to the technical field of power transmission equipment, in particular relates to an overhead power transmission wire and its preparation technology, which has high strength and high conductivity, and specifically relates to an all-aluminum alloy wire and a preparation method thereof.
背景技术Background technique
近些年来，随着我国经济的持续快速健康发展，电力行业作为国民经济的保障发展十分迅速，逐渐形成“西电东送、南北互供、全国联网”的战略格局，远距离、大容量输电线路的新建与改造也势在必行。架空输电导线及其基础设施作为输送电路的载体，在输电线路中占有十分重要的地位。In recent years, with the continuous, rapid and healthy development of my country's economy, the power industry has developed rapidly as a guarantee for the national economy, gradually forming a strategic pattern of "power transmission from west to east, mutual supply between north and south, and national networking". Long-distance, large-capacity power transmission The construction and reconstruction of the line is also imperative. As the carrier of the transmission circuit, the overhead transmission wire and its infrastructure occupy a very important position in the transmission line.
我国目前现有架空输电线路所使用的导线大部分仍旧是传统的钢芯铝绞线，存在拉重比较低、弧垂性能差、载流量小、耐腐蚀性差等非常明显的缺点。与传统的钢芯铝绞线相比，铝合金架空导线具有轻质节能、比强度高、耐腐蚀性好等非常明显的优势，因而近些年来得到了越来越多的关注。然而由于材料设计与制造技术的问题，现有铝合金导线制造技术存在难以兼顾导电率与强度的突出问题，其强度-导电率综合性能未能达到理想水平。Most of the wires used in the existing overhead transmission lines in my country are still traditional steel-reinforced aluminum stranded wires, which have obvious shortcomings such as low tensile weight, poor sag performance, small ampacity, and poor corrosion resistance. Compared with the traditional steel-reinforced aluminum stranded wire, the aluminum alloy overhead wire has very obvious advantages such as light weight, energy saving, high specific strength, and good corrosion resistance, so it has received more and more attention in recent years. However, due to the problems of material design and manufacturing technology, the existing aluminum alloy wire manufacturing technology has a prominent problem that it is difficult to balance conductivity and strength, and its strength-conductivity comprehensive performance has not reached the ideal level.
此外，架空输电线路的使用范围特别广泛，如何在保证产品强度的前提下，进一步提高架空导线的耐热性能，从而提高输电线路的载流量，将具有极大的经济效益与社会效益。In addition, overhead transmission lines are widely used. How to further improve the heat resistance of overhead wires on the premise of ensuring product strength, thereby increasing the carrying capacity of transmission lines, will have great economic and social benefits.
综上所述，针对输电网络实际使用环境与技术发展趋势的要求：首先急需解决的是现有架空导线制备技术中存在的无法兼顾导电率和强度的突出问题，即如何提供一种同时具备高强度高导电率的铝合金导线与制备方法，是科研机构与生产企业急需解决的重点课题。此外，若能同时再兼顾导线的耐热性能，将能够提高材料的使用温度，在相同导电率条件下，能够提供更大的电力输送能力，此类产品的应用将具有更好的社会推广潜力。To sum up, in view of the requirements of the actual use environment and technology development trend of the transmission network: the first thing that needs to be solved urgently is the outstanding problem that the existing overhead wire preparation technology cannot take into account the conductivity and strength, that is, how to provide a high-performance Aluminum alloy wires with high strength and high conductivity and their preparation methods are key issues urgently needed by scientific research institutions and production enterprises. In addition, if the heat resistance of the wire can be taken into account at the same time, the use temperature of the material can be increased, and under the same conductivity condition, it can provide greater power transmission capacity, and the application of such products will have better social promotion potential .
发明内容Contents of the invention
本发明的目的是针对现有架空导线制备技术存在的无法兼顾导电率和强度的突出问题，提供一种获得高强度高导电率的铝合金导线及其制备方法。The purpose of the present invention is to provide a high-strength and high-conductivity aluminum alloy wire and a preparation method thereof to solve the outstanding problem that the existing overhead wire preparation technology cannot take into account both electrical conductivity and strength.
本发明实现上述目的所采取的技术方案是：The technical scheme that the present invention realizes the above-mentioned purpose is taken is:
一种全铝合金架空导线，由0.05-0.4wt%Mg, 0.05-0.4 wt% Si, 0.02-0.1wt% Mo,0.05-0.1wt%Re, 0.05-0.1wt%Se, 0.05-0.3Sc wt%, 0.02-0.1 wt% Nb, 0.02-0.3Ru,0.02-0.5 wt% Zr, 余量为Al的元素成分组成。An all-aluminum alloy overhead wire, composed of 0.05-0.4wt%Mg, 0.05-0.4wt%Si, 0.02-0.1wt%Mo,0.05-0.1wt%Re, 0.05-0.1wt%Se, 0.05-0.3Sc wt% , 0.02-0.1 wt% Nb, 0.02-0.3Ru, 0.02-0.5 wt% Zr, and the balance is the elemental composition of Al.
在室温下，本全铝合金架空导线的维氏硬度不小于100HV，室温抗拉强度不小于330Mpa，伸长率不小于7%，导电率不小于57.0% IACS，（International Annealed CopperStandard）。At room temperature, the Vickers hardness of the all-aluminum alloy aerial conductor is not less than 100HV, the tensile strength at room temperature is not less than 330Mpa, the elongation is not less than 7%, and the electrical conductivity is not less than 57.0% IACS, (International Annealed CopperStandard).
由本全铝合金架空导线绞制而成的截面积为400mm2、长度为10m的输电线，通电直至输电线自身的温度上升并稳定在100℃时，其载流量不小于1400A。The transmission line with a cross-sectional area of 400mm 2 and a length of 10m made of this all-aluminum alloy overhead conductor is energized until the temperature of the transmission line itself rises and stabilizes at 100°C, and its carrying capacity is not less than 1400A.
制备本发明所述的全铝合金架空导线的方法，按如下步骤进行:The method for preparing the all-aluminum alloy overhead wire of the present invention is carried out as follows:
步骤1：合金配料，进行一次合金化熔炼：Step 1: Alloy ingredients, carry out an alloy melting:
取工业用铝、Al-Si中间合金、金属Re、Al2(SeO3)3粉末、Al-Sc中间合金、金属Ru块和Al-Zr中间合金，均匀混合后装入熔炼炉熔化和保温，得到一次合金化铝合金熔体。Take industrial aluminum, Al-Si master alloy, metal Re, Al 2 (SeO 3 ) 3 powder, Al-Sc master alloy, metal Ru block and Al-Zr master alloy, mix them evenly and put them into a melting furnace for melting and heat preservation. A primary alloyed aluminum alloy melt is obtained.
步骤2:球磨Mo，Nb粉，制备合金化添加剂，进行二次合金化熔炼。Step 2: ball milling Mo and Nb powders, preparing alloying additives, and carrying out secondary alloying smelting.
步骤3:将二次合金化熔体加入一次合金熔体, 制备综合合金化熔体。Step 3: Add the secondary alloying melt to the primary alloying melt to prepare a comprehensive alloying melt.
步骤4:在综合合金化熔体中加入Mg，Zr元素，进行三次合金化及变质处理。Step 4: Add Mg and Zr elements to the comprehensive alloying melt, and carry out alloying and modification treatment three times.
步骤5:铝合金熔体精炼。Step 5: aluminum alloy melt refining.
步骤6：通过上引法制备直径为10.0-12.0mm的铝合金杆材。Step 6: Prepare an aluminum alloy rod with a diameter of 10.0-12.0 mm by the up-draw method.
步骤7：铸态杆料退火处理。Step 7: Annealing the as-cast rod material.
步骤8：在室温下, 通过5-7道次, 将退火杆料冷拉拔成3.0-4.0mm线材。Step 8: cold drawing the annealed rod material into 3.0-4.0mm wire rod through 5-7 passes at room temperature.
步骤9：冷拉拔线材低温时效处理。Step 9: Low-temperature aging treatment of the cold-drawn wire rod.
进一步说，制备本发明所述的全铝合金架空导线的方法，具体按如下步骤实现：Further, the method for preparing the all-aluminum alloy aerial conductor described in the present invention is specifically implemented according to the following steps:
步骤1：取物料：90.000Kg工业用铝、0.250-2.000Kg的Al-Si中间合金、0.050-0.100Kg金属Re，0.090-0.180Kg的Al2(SeO3)3粉末，2.500kg-15.000Kg的Al-Sc中间合金，0.020-0.300Kg金属Ru块，均匀混合后装入熔炼炉炉膛，加热熔炼炉的炉体使物料充分熔化后，再将温度升至700-750℃，保温1小时后，停止加热，得到一次合金化铝合金熔体。Step 1: Take materials: 90.000Kg industrial aluminum, 0.250-2.000Kg Al-Si master alloy, 0.050-0.100Kg metal Re, 0.090-0.180Kg Al 2 (SeO 3 ) 3 powder, 2.500kg-15.000Kg Al-Sc intermediate alloy, 0.020-0.300Kg metal Ru block, mixed evenly and put into the hearth of the melting furnace, heating the furnace body of the melting furnace to fully melt the material, then raising the temperature to 700-750°C, and keeping it for 1 hour, Heating is stopped to obtain a primary alloyed aluminum alloy melt.
步骤2：将0.500Kg的Mo粉与0.500Kg的Nb粉均匀混合，进行球磨后，取出球磨粉料，压制成直径10.0mm，高度6.0mm的块体材料，并在1200-1300℃进行烧结处理，随后将块体材料破碎成小块样品后，称重0.040-0.200Kg，与10.000Kg工业用铝均匀混合后，装入炉膛，加热炉体，令Mo粉、Nb粉与工业用铝的混合物充分熔化，随后加热到800-850℃，保温1小时后，停止加热，得到二次合金化铝合金熔体。Step 2: Evenly mix 0.500Kg of Mo powder and 0.500Kg of Nb powder, after ball milling, take out the ball mill powder, press it into a block material with a diameter of 10.0mm and a height of 6.0mm, and sinter at 1200-1300°C , then break the bulk material into small pieces, weigh 0.040-0.200Kg, mix it with 10.000Kg of industrial aluminum evenly, put it into the furnace, heat the furnace body, and make the mixture of Mo powder, Nb powder and industrial aluminum Fully melted, then heated to 800-850° C., and kept for 1 hour, then stopped heating to obtain a secondary alloyed aluminum alloy melt.
步骤3：将步骤2得到的二次合金化铝合金熔体，通过平稳注入步骤1所得的一次合金化铝合金熔体中，加热炉体，使炉体在700-750℃保温10分钟后，开启电磁搅拌器，搅拌30分钟后，得到综合合金化铝合金熔体。Step 3: The secondary alloyed aluminum alloy melt obtained in step 2 is stably injected into the primary alloyed aluminum alloy melt obtained in step 1, and the furnace body is heated so that the furnace body is kept at 700-750°C for 10 minutes. Turn on the electromagnetic stirrer and stir for 30 minutes to obtain a comprehensive alloyed aluminum alloy melt.
步骤4：用干燥的铝箔紧密包裹0.050-0.400Kg金属Mg块，利用压勺将包裹的金属Mg块与0.400-10.000Kg的Al-Zr中间合金依次压入步骤3中所得的综合合金化铝合金熔体，使炉体在750-800℃保温30分钟后, 得到变质处理铝合金熔体。Step 4: Tightly wrap 0.050-0.400Kg metal Mg block with dry aluminum foil, and press the wrapped metal Mg block and 0.400-10.000Kg Al-Zr master alloy into the comprehensive alloyed aluminum alloy obtained in step 3 using a pressure spoon Melt, after keeping the furnace body at 750-800°C for 30 minutes, a modified aluminum alloy melt is obtained.
步骤5：开启电磁搅拌器，对由步骤4获得的变质处理铝合金熔体进行30分钟的电磁搅拌，且加热熔炼炉，使炉体在700-750℃保温10分钟后，加入0.500Kg六氯乙烷精炼剂进行精炼并除渣，得到精炼后铝合金熔体。Step 5: Turn on the electromagnetic stirrer, electromagnetically stir the modified aluminum alloy melt obtained in step 4 for 30 minutes, and heat the melting furnace to keep the furnace body at 700-750°C for 10 minutes, then add 0.500Kg hexachloro The ethane refining agent is used for refining and removing slag to obtain a refined aluminum alloy melt.
步骤6：将步骤5所得的精炼后铝合金熔体在700℃保温静置1小时后，将上引装置插入铝液进行引杆，制备铝合金直径为10.0-12.0mm的铝合金杆料，并卷曲成直径为1.5-2.0m的盘线，得到铸态盘线。Step 6: After the refined aluminum alloy melt obtained in step 5 is kept at 700° C. for 1 hour, the upper drawing device is inserted into the aluminum liquid to guide the rod, and an aluminum alloy rod material with an aluminum alloy diameter of 10.0-12.0 mm is prepared. And curl it into a coil wire with a diameter of 1.5-2.0m to obtain a cast coil wire.
步骤7：将步骤6所得铸态盘线放置入退火炉进行退火处理，保温温度200-400℃，保温时间2-4小时后，取出盘线，置于空气中使之自然冷却，得到退火盘线。Step 7: Put the as-cast coil wire obtained in step 6 into an annealing furnace for annealing treatment. The holding temperature is 200-400°C. After the holding time is 2-4 hours, take out the coil wire and place it in the air to cool it naturally to obtain an annealing disc. Wire.
步骤8：将步骤7所得退火盘线，利用连续拉拔机，在室温下进行5-7道次拉拔，制备成直径为3.0-4.0mm的线材，得到冷拉拔线材。Step 8: The annealed coiled wire obtained in Step 7 is drawn by a continuous drawing machine at room temperature for 5-7 passes to prepare a wire rod with a diameter of 3.0-4.0 mm to obtain a cold-drawn wire rod.
步骤9：将步骤8所得冷拉拔线材放置进低温时效炉，在160-180℃条件下保温3-5小时后，取出后置于空气中自然冷却，得到成品。Step 9: Put the cold-drawn wire rod obtained in Step 8 into a low-temperature aging furnace, heat it at 160-180° C. for 3-5 hours, take it out, and cool it in the air naturally to obtain a finished product.
更进一步说，在步骤1中，工业用铝的纯度为99.7%。Al-Si中间合金的成分为20%wtSi与80wt%Al。Al-Sc中间合金的成分为2wt%Sc与98wt%Al。Al-Zr中间合金的成分为5wt%Zr，95wt%Al。Furthermore, in step 1, the purity of industrial aluminum is 99.7%. The composition of the Al-Si master alloy is 20%wtSi and 80wt%Al. The composition of the Al-Sc master alloy is 2wt%Sc and 98wt%Al. The composition of the Al-Zr master alloy is 5wt% Zr, 95wt% Al.
更进一步说，在步骤2中，Mo粉的纯度为99.9%。工业用铝的纯度为99.7%。Furthermore, in step 2, the purity of Mo powder was 99.9%. The purity of industrial aluminum is 99.7%.
更进一步说，在步骤4中，金属Mg块与铝箔与的质量比不小于5:1。Al-Zr中间合金的成分为5wt%Zr，95wt%Al。Furthermore, in step 4, the mass ratio of metal Mg block to aluminum foil is not less than 5:1. The composition of the Al-Zr master alloy is 5wt% Zr, 95wt% Al.
更进一步说，在步骤8中，在室温下进行5-7道次的拉拔。Furthermore, in step 8, 5-7 passes of drawing are carried out at room temperature.
更进一步说，5-7道次拉拔中的前三道次拉拔减径率控制在2.5~3 : 2-~2.5 : 1的范围内。Furthermore, the drawing diameter reduction ratio of the first three passes in the 5-7 passes is controlled within the range of 2.5~3: 2-~2.5: 1.
有益的技术效果Beneficial technical effect
本发明提供一种全铝合金架空导线制备方法，通过成分与制备工艺的双重优化设计，通过特定的工艺条件，最大化发挥每种合金化元素的有益影响，使最终产品性能达到优异的力学-导电综合性能：室温维氏硬度不小于100HV，室温抗拉强度不小于330Mpa，伸长率不小于7%，导电率不小于57% IACS。The invention provides a method for preparing an all-aluminum alloy overhead wire. Through the dual optimization design of the composition and the preparation process, and through the specific process conditions, the beneficial effects of each alloying element are maximized, so that the final product performance can achieve excellent mechanical- Conductive comprehensive performance: Vickers hardness at room temperature is not less than 100HV, tensile strength at room temperature is not less than 330Mpa, elongation is not less than 7%, conductivity is not less than 57% IACS.
本发明采用普通工业级铝锭(99.7%)为原料生产，采用添加微量元素的方式对其性能进行调整，且可采用工厂现有的设备进行生产，无需添加额外的设备、开辟额外的厂房空间，故生产成本与常规铝合金导线产品相当。因此本发明具有生产成本低、工艺简单，产品力学性能和导电性能优良、稳定、均匀的效果The present invention uses ordinary industrial grade aluminum ingots (99.7%) as raw materials for production, and adjusts its performance by adding trace elements, and can use the existing equipment of the factory for production, without adding additional equipment and opening up additional workshop space , so the production cost is equivalent to conventional aluminum alloy wire products. Therefore, the present invention has the effects of low production cost, simple process, excellent mechanical properties and electrical conductivity of the product, stability and uniformity
本发明通过二次合金化方式，使难熔元素Mo、Nb以二次合金化熔体的形式，均匀注入一次合金化熔体，并利用不同合金元素之间的结合力作用，使主要合金化元素和微量合金化元素通过近原位反应的方式，形成均匀分布的微区原子团簇，得到高度合金化的熔体。In the present invention, through the secondary alloying method, the refractory elements Mo and Nb are evenly injected into the primary alloying melt in the form of the secondary alloying melt, and the bonding force between different alloying elements is used to make the main alloying Elements and trace alloying elements form uniformly distributed micro-region atomic clusters through near-in-situ reactions, and a highly alloyed melt is obtained.
本发明针对难熔的Mo、Nb元素，借助高能球磨方式，破坏同类原子间的相互作用场，以达到强制固溶的目的，使微量元素Mo，Nb严格按照最优比例均匀分布，并通过Mo-Nb合金粉压制-扩散烧结成块-再破碎的方式，制备Mo-Nb合金添加剂，添加到二次合金化熔体中。The present invention aims at the refractory Mo and Nb elements, by means of high-energy ball milling, destroys the interaction field between similar atoms, so as to achieve the purpose of forced solid solution, so that the trace elements Mo and Nb are uniformly distributed in strict accordance with the optimal ratio, and through Mo -Nb alloy powder pressing-diffusion sintering into a block-re-crushing method to prepare Mo-Nb alloy additives and add them to the secondary alloying melt.
通过以上所述的熔体合金化方式，能够使比重、蒸汽压、熔点以及其他物理性能差异加大的合金化元素，以最为有效方式溶入铝合金熔体中。同时，利用退火处理铸态杆材和对冷拉拔线材进行低温时效处理，使合金元素的充分时效析出，净化成品基体，起到最大限度提高导电率的作用。Through the above-mentioned melt alloying method, the alloying elements whose specific gravity, vapor pressure, melting point and other physical properties are different can be dissolved into the aluminum alloy melt in the most effective way. At the same time, the annealing treatment of the as-cast rod and the low-temperature aging treatment of the cold-drawn wire can make the alloy elements fully aged and precipitated, purify the finished product matrix, and maximize the conductivity.
与现有钢芯铝绞线相比较，本发明方法生产的产品, 其直流电阻减少2.6%，单位体积的重量减少10%，且弧垂特性远远高于传统的钢芯铝绞线, 因而是一种新型的节能轻质输电导线。同时，对于新建线路来说, 选用本发明制备的产品，可以增大塔距, 降低塔高, 大幅度减少线路建设成本, 具有较强的市场竞争力。Compared with the existing ACSR, the DC resistance of the product produced by the method of the present invention is reduced by 2.6%, the weight per unit volume is reduced by 10%, and the sag characteristic is much higher than that of the traditional ACSR, thus It is a new type of energy-saving lightweight transmission wire. At the same time, for new lines, the product prepared by the invention can increase the distance between the towers, reduce the height of the towers, greatly reduce the cost of line construction, and have strong market competitiveness.
综上所述，本发明提供一种全铝合金架空导线及其制备的方法，采用普通工业级铝锭为原料生产，生产成本与常规铝合金导线成本相当，通过三次合金化、变质处理、熔体精炼、铸态杆料退火处理、冷拉拔等步骤处理获得，最终实现具有优良物化性能的产品，其维氏硬度、室温抗拉强度、伸长率，导电率较现有产品显著提高。其典型的性能指标为：室温维氏硬度不小于100HV，室温抗拉强度不小于330Mpa，伸长率不小于7%，导电率不小于57%IACS。In summary, the present invention provides an all-aluminum alloy overhead wire and its preparation method, which uses ordinary industrial-grade aluminum ingots as raw materials for production, and the production cost is equivalent to that of conventional aluminum alloy wires. It is obtained through body refining, as-cast rod annealing treatment, cold drawing and other steps, and finally achieves a product with excellent physical and chemical properties. Its Vickers hardness, room temperature tensile strength, elongation, and electrical conductivity are significantly improved compared with existing products. Its typical performance indicators are: Vickers hardness at room temperature is not less than 100HV, tensile strength at room temperature is not less than 330Mpa, elongation is not less than 7%, and electrical conductivity is not less than 57%IACS.
还要指出的是，与传统的钢芯铝绞线相比较，本产品具有良好的耐热性能，其长期使用温度不低于100℃。It should also be pointed out that, compared with the traditional ACSR, this product has good heat resistance, and its long-term service temperature is not lower than 100°C.
本发明产品的耐热性能比钢芯铝绞线好，与现有的耐热导线相当。但由于本发明产品导电性能远高于钢芯铝绞线和现有的耐热导线，因而在相同电流情况下温升小，故本产品具有更大的载流量。The heat resistance of the product of the invention is better than that of the steel-cored aluminum stranded wire, and is equivalent to that of the existing heat-resistant wire. However, because the electrical conductivity of the product of the present invention is much higher than that of the steel-cored aluminum stranded wire and the existing heat-resistant wire, the temperature rise is small under the same current condition, so the product has a larger current-carrying capacity.
由本发明产物绞制截面积为400mm2、长度为2m的导线，两端加电，令该导线逐渐升温，直至其温度稳定在100℃时，此时该导线的载流量不小于1400A。A wire with a cross-sectional area of 400mm 2 and a length of 2m is twisted from the product of the present invention, and the two ends of the wire are powered to gradually heat up the wire until the temperature is stabilized at 100°C. At this time, the carrying capacity of the wire is not less than 1400A.
具体实施方式detailed description
现结合具体的实施例来进一步阐述本发明的技术特点与性能优势。The technical characteristics and performance advantages of the present invention will be further described in combination with specific embodiments.
实施例1Example 1
第一步:合金配料，进行一次合金化熔炼The first step: alloy batching, carry out an alloy melting
将90kg工业用铝(99.99%纯度)、0.250kg Al-Si中间合金(20%Si，80wt%Al)、0.050kg金属Re，0.090kg Al2(SeO3)3粉末，2.5kg Al-Sc中间合金(2wt%Sc，98wt%Al)，0.030kg Ru块均匀混合后，装入1#熔炼炉炉膛，加热炉体使物料充分熔化，并将铝合金熔体加热到700-750℃，保温1小时后，停止加热，得到一次合金化铝合金熔体。90kg of industrial aluminum (99.99% purity), 0.250kg of Al-Si master alloy (20%Si, 80wt%Al), 0.050kg of metal Re, 0.090kg of Al 2 (SeO 3 ) 3 powder, 2.5kg of Al-Sc intermediate Alloy (2wt%Sc, 98wt%Al), 0.030kg Ru blocks are evenly mixed, put into the hearth of 1# smelting furnace, heat the furnace body to fully melt the material, and heat the aluminum alloy melt to 700-750°C, keep warm for 1 After 1 hour, the heating was stopped to obtain a primary alloyed aluminum alloy melt.
第二步：球磨Mo，Nb粉，制备合金化添加剂，进行二次合金化熔炼The second step: ball milling Mo and Nb powders, preparing alloying additives, and performing secondary alloying and smelting
将500g纯Mo粉与500gNb粉均匀混合，放入KQM-X4型行星式球磨机的不锈钢磨罐中，按5:1的个数，放入直径8mm和20mm的硬质合金磨球，密封后通入高纯度氩气(纯度为99.99%)以减少样品氧化，进行高能球磨后，待球磨罐充分降温到室温后，取出球磨粉料，用乙二醇作为混合粉末的成型剂，将混合粉末用油压机在30Mpa压力下预压制成压制成直径10mm，高度6mm的块体材料，使用型号为FVPHP-R-10FRET-40的真空气压烧结炉，在氩气氛下进行低压烧结处理，烧结温度1200℃，压力10Mpa，保温时间1小时，将烧结后的块体破碎成尺寸维度约为2-3mm的碎块。称重0.08kg，并与10Kg工业用铝(99.99%纯度)均匀混合，装入2#坩埚炉炉膛，设置炉体温度800℃，使物料充分熔化，并保温1小时，停止加热，得到二次合金化铝合金熔体。Mix 500g of pure Mo powder and 500g of Nb powder evenly, put them into the stainless steel grinding tank of KQM-X4 planetary ball mill, put in the cemented carbide grinding balls with a diameter of 8mm and 20mm according to the number of 5:1, seal and pass Enter high-purity argon gas (purity is 99.99%) to reduce sample oxidation. After high-energy ball milling, after the ball mill tank is fully cooled to room temperature, take out the ball mill powder, use ethylene glycol as the forming agent for the mixed powder, and use the mixed powder The hydraulic press is pre-pressed under the pressure of 30Mpa to press into a block material with a diameter of 10mm and a height of 6mm. The vacuum pressure sintering furnace of the model FVPHP-R-10FRET-40 is used to carry out low-pressure sintering treatment under an argon atmosphere. The sintering temperature is 1200°C. The pressure is 10Mpa, the holding time is 1 hour, and the sintered block is broken into fragments with a size of about 2-3mm. Weigh 0.08kg, mix it evenly with 10Kg of industrial aluminum (99.99% purity), put it into the hearth of 2# crucible furnace, set the temperature of the furnace body to 800°C to fully melt the material, keep it warm for 1 hour, stop heating, and obtain secondary Alloyed aluminum alloy melt.
第三步:将二次合金化熔体加入一次合金熔体The third step: adding the secondary alloying melt to the primary alloying melt
将第二步得到的二次合金化铝合金熔体，通过漏斗平稳注入1#熔炼炉的一次合金化铝合金熔体中，设定熔炼炉温度710℃，保温10分钟后，用石墨棒搅拌30分钟，得到综合合金化铝合金熔体Inject the secondary alloyed aluminum alloy melt obtained in the second step into the primary alloyed aluminum alloy melt of 1# melting furnace through the funnel, set the temperature of the melting furnace to 710°C, keep it warm for 10 minutes, and stir it with a graphite rod 30 minutes to obtain a comprehensive alloyed aluminum alloy melt
第四步:加入Mg，Zr元素，进行三次合金化及变质处理。The fourth step: adding Mg and Zr elements, and carrying out alloying and modification treatment three times.
用干燥的铝箔紧密包裹0.4kg金属Mg块，利用压勺将包裹的金属Mg块与0.5kg Al-Zr中间合金依次压入第三步中所得的综合合金化铝合金熔体，得到变质处理铝合金熔体。Tightly wrap 0.4kg metal Mg block with dry aluminum foil, and press the wrapped metal Mg block and 0.5kg Al-Zr master alloy into the comprehensive alloyed aluminum alloy melt obtained in the third step with a pressure spoon to obtain modified aluminum alloy. alloy melt.
第五步：铝合金熔体精炼Step 5: Aluminum Alloy Melt Refining
开启电磁搅拌器，经过30分钟的电磁搅拌，加热熔炼炉，使炉体在700-750℃保温10分钟后，加入500g六氯乙烷精炼剂进行精炼并除渣，得到精炼后铝合金熔体。Turn on the electromagnetic stirrer, after 30 minutes of electromagnetic stirring, heat the melting furnace, keep the furnace body at 700-750°C for 10 minutes, add 500g of hexachloroethane refining agent to refine and remove slag, and obtain a refined aluminum alloy melt .
第六步:通过上引法制备直径为12mm的铝合金杆材The sixth step: preparing an aluminum alloy rod with a diameter of 12 mm by the upward drawing method
将第五步所得的精炼后铝合金熔体在700℃保温静置1小时后，使残留气体从铝液中完全溢出，同时使铝液中的杂质，升浮到铝液表面，通过二次拔渣清理，得到洁净的铝合金液。结晶器经过试压后，接入水管，水压控制在0.15—0.2MaP，水温度控制在20-25℃，保持水路畅通。把引棒装上接引头，插入结晶器，进行引杆，制备直径为12mm的杆料，并卷曲成直径为2m的盘线，得到铸态盘线。After the refined aluminum alloy melt obtained in the fifth step is kept at 700°C for 1 hour, the residual gas is completely overflowed from the molten aluminum, and the impurities in the molten aluminum are raised to the surface of the molten aluminum, and passed through the secondary Slag removal is performed to obtain clean aluminum alloy liquid. After the crystallizer is pressure tested, it is connected to the water pipe, the water pressure is controlled at 0.15-0.2MaP, and the water temperature is controlled at 20-25°C to keep the waterway unblocked. Install the lead rod on the lead head, insert it into the crystallizer, and carry out the lead rod, prepare a rod material with a diameter of 12mm, and curl it into a coil wire with a diameter of 2m to obtain the cast coil wire.
第七步:铸态盘线退火处理The seventh step: annealing treatment of as-cast wire
将第六步所得铸态盘线放置入钟罩式退火炉进行退火处理，设定温度为320℃，待测温热电偶到达320℃后，开始计时，保温时间3小时后，取出盘线，置于空气中使之自然冷却，得到退火盘线。Put the as-cast coil wire obtained in the sixth step into a bell-type annealing furnace for annealing treatment, set the temperature at 320°C, start timing when the thermocouple to be measured reaches 320°C, and take out the coil wire after the holding time is 3 hours. Place it in the air and let it cool naturally to obtain an annealed coil.
第八步：退火盘线冷拉拔成3.5mm线材Step 8: Cold drawing of annealed wire into 3.5mm wire
将第八步中所得退火盘线，利用连续拉拔机，在室温下经过5道次，遵循12mm→8mm→5.8mm→ 5.1mm→4mm→3.5mm的次序，拉拔制备成直径为3.5mm的线材。The annealed wire obtained in the eighth step is drawn and prepared into a diameter of 3.5mm by using a continuous drawing machine at room temperature for 5 passes, following the sequence of 12mm→8mm→5.8mm→5.1mm→4mm→3.5mm of wire.
第九步：冷拉拔线材低温时效处理Step 9: Cold-drawn wire low-temperature aging treatment
将第八步中所得冷拉拔线材放置进入低温时效炉，设定温度180℃，到温后保温5小时，取出线材，置于空气中自然冷却，得到成品。Put the cold-drawn wire rod obtained in the eighth step into a low-temperature aging furnace, set the temperature at 180°C, keep warm for 5 hours after reaching the temperature, take out the wire rod, and place it in the air to cool naturally to obtain a finished product.
经原子发射光谱仪, 直读光谱仪、X射线衍射仪、扫描电镜、透射电镜等设备的检测与相互验证，由实施例1所得到的产物的成分为: 由0.362wt%Mg, 0.0624wt% Si,0.0426wt% Mo, 0.0562wt%Re, 0.0522wt%Se, 0.0512Sc wt%, 0.0433 wt% Nb,0.0382Ru, 0.0311 wt% Zr, 余量为Al的元素成分组成。Through the detection and mutual verification of equipment such as atomic emission spectrometer, direct reading spectrometer, X-ray diffractometer, scanning electron microscope, transmission electron microscope, the composition of the product obtained by embodiment 1 is: by 0.362wt%Mg, 0.0624wt%Si, 0.0426wt% Mo, 0.0562wt%Re, 0.0522wt%Se, 0.0512wt%Sc, 0.0433wt% Nb, 0.0382Ru, 0.0311wt% Zr, the balance is the elemental composition of Al.
再经维氏显微硬度计、万能力学性能试验机、电导率测试仪的检测，在室温下，本全铝合金架空导线的维氏硬度平均值102HV，室温抗拉强度平均值332Mpa，伸长率平均值7.2%，导电率平均值57.1% IACS。After testing by Vickers microhardness tester, universal mechanical performance testing machine and electrical conductivity tester, at room temperature, the average Vickers hardness of the all-aluminum alloy overhead wire is 102HV, the average tensile strength at room temperature is 332Mpa, and the elongation The average rate is 7.2%, and the average conductivity is 57.1% IACS.
产品长时间使用温度不小于100℃，通过230℃连续加热1小时后, 强度残存率不低于85%。The long-term use temperature of the product is not less than 100°C, and after continuous heating at 230°C for 1 hour, the strength residual rate is not less than 85%.
选用上述产品绞制成一根截面积为400mm2、长度为2m的导线，通电直至导线自身的温度上升并稳定在100℃时，其载流量约为1412A。Use the above products to twist into a wire with a cross-sectional area of 400mm 2 and a length of 2m. When the temperature of the wire itself rises and stabilizes at 100°C, the current-carrying capacity is about 1412A.
实施例2Example 2
第一步:合金配料，进行一次合金化熔炼The first step: alloy batching, carry out an alloy melting
将90kg工业用铝(99.99%纯度)、1kg Al-Si中间合金(20%Si，80wt%Al)、0.080kg金属Re，0.15kg Al2(SeO3)3粉末，5kg Al-Sc中间合金(2wt%Sc，98wt%Al)，0.080kg Ru块均匀混合后，装入1#熔炼炉炉膛，加热炉体使物料充分熔化，并将铝合金熔体加热到750℃，保温1小时后，停止加热，得到一次合金化铝合金熔体。90kg industrial aluminum (99.99% purity), 1kg Al-Si master alloy (20%Si, 80wt%Al), 0.080kg metal Re, 0.15kg Al 2 (SeO 3 ) 3 powder, 5kg Al-Sc master alloy ( 2wt%Sc, 98wt%Al), and 0.080kg Ru blocks are evenly mixed, put into the hearth of 1# smelting furnace, heat the furnace body to fully melt the material, and heat the aluminum alloy melt to 750 ° C, keep it for 1 hour, stop Heating to obtain a primary alloyed aluminum alloy melt.
第二步：球磨Mo，Nb粉，制备合金化添加剂，进行二次合金化熔炼The second step: ball milling Mo and Nb powders, preparing alloying additives, and performing secondary alloying and smelting
将500g纯Mo粉与500gNb粉均匀混合，放入KQM-X4型行星式球磨机的不锈钢磨罐中，按5:1的个数，放入直径8mm和20mm的硬质合金磨球，密封后通入高纯度氩气(纯度为99.99%)以减少样品氧化，进行高能球磨后，待球磨罐充分降温到室温后，取出球磨粉料，用乙二醇作为混合粉末的成型剂，将混合粉末用油压机在30Mpa压力下预压制成压制成直径10mm，高度6mm的块体材料，使用型号为FVPHP-R-10FRET-40的真空气压烧结炉，在氩气氛下进行低压烧结处理，烧结温度1200℃，压力10Mpa，保温时间1小时，将烧结后的块体破碎成尺寸维度约为2-3mm的碎块。称重0.1kg，并与10Kg工业用铝(99.99%纯度)均匀混合，装入2#坩埚炉炉膛，设置炉体温度800℃，使物料充分熔化，并保温1小时，停止加热，得到二次合金化铝合金熔体。Mix 500g of pure Mo powder and 500g of Nb powder evenly, put them into the stainless steel grinding tank of KQM-X4 planetary ball mill, put in the cemented carbide grinding balls with a diameter of 8mm and 20mm according to the number of 5:1, seal and pass Enter high-purity argon gas (purity is 99.99%) to reduce sample oxidation. After high-energy ball milling, after the ball mill tank is fully cooled to room temperature, take out the ball mill powder, use ethylene glycol as the forming agent for the mixed powder, and use the mixed powder The hydraulic press is pre-pressed under the pressure of 30Mpa to press into a block material with a diameter of 10mm and a height of 6mm. The vacuum pressure sintering furnace of the model FVPHP-R-10FRET-40 is used to carry out low-pressure sintering treatment under an argon atmosphere. The sintering temperature is 1200°C. The pressure is 10Mpa, the holding time is 1 hour, and the sintered block is broken into fragments with a size of about 2-3mm. Weigh 0.1kg and mix it evenly with 10Kg of industrial aluminum (99.99% purity), put it into the hearth of 2# crucible furnace, set the temperature of the furnace body at 800°C to fully melt the material, keep it warm for 1 hour, stop heating, and obtain secondary Alloyed aluminum alloy melt.
第三步:将二次合金化熔体加入一次合金熔体The third step: adding the secondary alloying melt to the primary alloying melt
将第二步得到的二次合金化铝合金熔体，通过漏斗平稳注入1#熔炼炉的一次合金化铝合金熔体中，设定熔炼炉温度720℃，保温10分钟后，用石墨棒搅拌30分钟，得到综合合金化铝合金熔体Inject the secondary alloyed aluminum alloy melt obtained in the second step into the primary alloyed aluminum alloy melt of 1# melting furnace through the funnel, set the temperature of the melting furnace to 720°C, keep it warm for 10 minutes, and stir it with a graphite rod 30 minutes to obtain a comprehensive alloyed aluminum alloy melt
第四步:加入Mg，Zr元素，进行三次合金化及变质处理。The fourth step: adding Mg and Zr elements, and carrying out alloying and modification treatment three times.
用干燥的铝箔紧密包裹0.3kg金属Mg块，利用压勺将包裹的金属Mg块与1kg Al-Zr中间合金依次压入第三步中所得的综合合金化铝合金熔体，得到变质处理铝合金熔体。Wrap 0.3kg metal Mg block tightly with dry aluminum foil, press the wrapped metal Mg block and 1kg Al-Zr intermediate alloy into the comprehensive alloyed aluminum alloy melt obtained in the third step by using a pressure spoon, and obtain a modified aluminum alloy melt.
第五步：铝合金熔体精炼Step 5: Aluminum Alloy Melt Refining
开启电磁搅拌器，经过30分钟的电磁搅拌，加热熔炼炉，使炉体在700-750℃保温10分钟后，加入500g六氯乙烷精炼剂进行精炼并除渣，得到精炼后铝合金熔体。Turn on the electromagnetic stirrer, after 30 minutes of electromagnetic stirring, heat the melting furnace, keep the furnace body at 700-750°C for 10 minutes, add 500g of hexachloroethane refining agent to refine and remove slag, and obtain a refined aluminum alloy melt .
第六步:通过上引法制备直径为12mm的铝合金杆材The sixth step: preparing an aluminum alloy rod with a diameter of 12 mm by the upward drawing method
将第五步所得的精炼后铝合金熔体在720℃保温静置1小时后，使残留气体从铝液中完全溢出，同时使铝液中的杂质，升浮到铝液表面，通过二次拔渣清理，得到洁净的铝合金液。结晶器经过试压后，接入水管，水压控制在0.15—0.2MaP，水温度控制在20-25℃，保持水路畅通。把引棒装上接引头，插入结晶器，进行引杆，制备直径为12mm的杆料，并卷曲成直径为2m的盘线，得到铸态盘线。After the refined aluminum alloy melt obtained in the fifth step is kept at 720°C for 1 hour, the residual gas is completely overflowed from the molten aluminum, and at the same time, the impurities in the molten aluminum are lifted to the surface of the molten aluminum. Slag removal is performed to obtain clean aluminum alloy liquid. After the crystallizer is pressure tested, it is connected to the water pipe, the water pressure is controlled at 0.15-0.2MaP, and the water temperature is controlled at 20-25°C to keep the waterway unblocked. Install the lead rod on the lead head, insert it into the crystallizer, and carry out the lead rod, prepare a rod material with a diameter of 12mm, and curl it into a coil wire with a diameter of 2m to obtain the cast coil wire.
第七步:铸态盘线退火处理The seventh step: annealing treatment of as-cast wire
将第六步所得铸态盘线放置入钟罩式退火炉进行退火处理，设定温度为300℃，待测温热电偶到达300℃后，开始计时，保温时间4小时后，取出盘线，置于空气中使之自然冷却，得到退火盘线。Put the as-cast coil wire obtained in the sixth step into a bell-type annealing furnace for annealing treatment, set the temperature at 300°C, start timing when the thermocouple to be measured reaches 300°C, and take out the coil wire after the holding time is 4 hours. Place it in the air and let it cool naturally to obtain an annealed coil.
第八步：退火盘线冷拉拔成3.5mm线材Step 8: Cold drawing of annealed wire into 3.5mm wire
将第八步中所得退火盘线，利用连续拉拔机，在室温下经过5道次，遵循12mm→8mm→5.8mm→ 5.1mm→4mm→3.5mm的次序，拉拔制备成直径为3.5mm的线材。The annealed wire obtained in the eighth step is drawn and prepared into a diameter of 3.5mm by using a continuous drawing machine at room temperature for 5 passes, following the sequence of 12mm→8mm→5.8mm→5.1mm→4mm→3.5mm of wire.
第九步：冷拉拔线材低温时效处理Step 9: Cold-drawn wire low-temperature aging treatment
将第八步中所得冷拉拔线材放置进入低温时效炉，设定温度170℃，到温后保温4小时，取出线材，置于空气中自然冷却，得到成品。Put the cold-drawn wire rod obtained in the eighth step into a low-temperature aging furnace, set the temperature at 170°C, keep warm for 4 hours after reaching the temperature, take out the wire rod, and cool it naturally in the air to obtain a finished product.
经原子发射光谱仪, 直读光谱仪、X射线衍射仪、扫描电镜、透射电镜等设备的检测与相互验证，由实施例1所得到的产物的成分为: 由0.298wt%Mg, 0.228wt% Si,0.0511wt% Mo, 0.0793wt%Re, 0.0771wt%Se, 0.08Sc wt%, 0.0521 wt% Nb, 0.0733Ru,0.0461 wt% Zr, 余量为Al的元素成分组成。Through the detection and mutual verification of equipment such as atomic emission spectrometer, direct reading spectrometer, X-ray diffractometer, scanning electron microscope, transmission electron microscope, the composition of the product obtained by embodiment 1 is: by 0.298wt%Mg, 0.228wt%Si, 0.0511wt% Mo, 0.0793wt% Re, 0.0771wt% Se, 0.08Sc wt%, 0.0521 wt% Nb, 0.0733Ru, 0.0461 wt% Zr, and the balance is the elemental composition of Al.
再经维氏显微硬度计、万能力学性能试验机、电导率测试仪的检测，在室温下，本全铝合金架空导线的维氏硬度平均值105HV，室温抗拉强度平均值335Mpa，伸长率平均值8.1%，导电率平均值58.1% IACS。After testing by Vickers microhardness tester, universal mechanical performance testing machine and electrical conductivity tester, at room temperature, the average Vickers hardness of the all-aluminum alloy overhead wire is 105HV, the average tensile strength at room temperature is 335Mpa, and the elongation The average rate is 8.1%, and the average conductivity is 58.1% IACS.
产品长时间使用温度不小于100℃，通过230℃连续加热1小时后, 强度残存率不低于85%。The long-term use temperature of the product is not less than 100°C, and after continuous heating at 230°C for 1 hour, the strength residual rate is not less than 85%.
由实施例2的产物绞制一根截面积为400mm2、长度为4m的本发明材质的导线，通电直至导线自身的温度上升并稳定在100℃时，测其载流量约为1411A。A wire of the present invention with a cross-sectional area of 400 mm 2 and a length of 4 m was twisted from the product of Example 2. When the temperature of the wire itself rose and stabilized at 100°C, the ampacity was measured to be about 1411A.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102255.4A CN106555083B (en) | 2016-12-05 | 2016-12-05 | A kind of all aluminium alloy aerial condutor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102255.4A CN106555083B (en) | 2016-12-05 | 2016-12-05 | A kind of all aluminium alloy aerial condutor and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106555083A true CN106555083A (en) | 2017-04-05 |
| CN106555083B CN106555083B (en) | 2018-03-20 |
Family
ID=58446198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611102255.4A Expired - Fee Related CN106555083B (en) | 2016-12-05 | 2016-12-05 | A kind of all aluminium alloy aerial condutor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106555083B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295361A (en) * | 2018-10-23 | 2019-02-01 | 宁波龙安包装科技有限公司 | Compound tension medicinal aluminum foil and its processing method |
| CN109536794A (en) * | 2018-12-29 | 2019-03-29 | 安徽鑫发铝业有限公司 | Resistance electrophoretic aluminium section of a kind of resist bending cracking and preparation method thereof |
| CN110629086A (en) * | 2019-10-01 | 2019-12-31 | 湖南七纬科技有限公司 | Die-casting aluminum alloy material for 5G communication base station shell and preparation method thereof |
| CN111564251A (en) * | 2020-06-10 | 2020-08-21 | 江苏亨通电力特种导线有限公司 | Aluminum alloy stranded wire and manufacturing method thereof |
| CN112941376A (en) * | 2021-01-26 | 2021-06-11 | 佛山职业技术学院 | Alloy conductor material and preparation method and application thereof |
| CN113578997A (en) * | 2021-08-03 | 2021-11-02 | 南京超明精密合金材料有限公司 | Processing technology of super free-cutting precision alloy rod and wire |
| CN113755720A (en) * | 2018-01-05 | 2021-12-07 | 住友电气工业株式会社 | Aluminum alloy wire and method for producing the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997013885A1 (en) * | 1995-10-12 | 1997-04-17 | Kabushiki Kaisha Toshiba | Wiring film, sputter target for forming the wiring film and electronic component using the same |
| CN1598025A (en) * | 2003-07-16 | 2005-03-23 | 阿尔斯托姆科技有限公司 | Aluminum-based multinary alloys and their use as heat- and corrosion-resistant coatings |
| CN102134668A (en) * | 2011-03-02 | 2011-07-27 | 合肥工业大学 | High-strength high-conductivity heat-resistant aluminum alloy wire and preparation method thereof |
| CN102560312A (en) * | 2010-12-16 | 2012-07-11 | 贵州华科铝材料工程技术研究有限公司 | Seven-combination modified low-zinc aluminum alloy plating material for hot-dip plating and preparation method thereof |
| CN103328666A (en) * | 2010-10-29 | 2013-09-25 | 美铝公司 | Improved 5xxx aluminum alloys, and methods for producing the same |
-
2016
- 2016-12-05 CN CN201611102255.4A patent/CN106555083B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997013885A1 (en) * | 1995-10-12 | 1997-04-17 | Kabushiki Kaisha Toshiba | Wiring film, sputter target for forming the wiring film and electronic component using the same |
| CN1598025A (en) * | 2003-07-16 | 2005-03-23 | 阿尔斯托姆科技有限公司 | Aluminum-based multinary alloys and their use as heat- and corrosion-resistant coatings |
| CN103328666A (en) * | 2010-10-29 | 2013-09-25 | 美铝公司 | Improved 5xxx aluminum alloys, and methods for producing the same |
| CN102560312A (en) * | 2010-12-16 | 2012-07-11 | 贵州华科铝材料工程技术研究有限公司 | Seven-combination modified low-zinc aluminum alloy plating material for hot-dip plating and preparation method thereof |
| CN102134668A (en) * | 2011-03-02 | 2011-07-27 | 合肥工业大学 | High-strength high-conductivity heat-resistant aluminum alloy wire and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113755720A (en) * | 2018-01-05 | 2021-12-07 | 住友电气工业株式会社 | Aluminum alloy wire and method for producing the same |
| CN109295361A (en) * | 2018-10-23 | 2019-02-01 | 宁波龙安包装科技有限公司 | Compound tension medicinal aluminum foil and its processing method |
| CN109295361B (en) * | 2018-10-23 | 2021-07-30 | 宁波龙安包装科技有限公司 | Composite tensile medicinal aluminum foil and processing method thereof |
| CN109536794A (en) * | 2018-12-29 | 2019-03-29 | 安徽鑫发铝业有限公司 | Resistance electrophoretic aluminium section of a kind of resist bending cracking and preparation method thereof |
| CN110629086A (en) * | 2019-10-01 | 2019-12-31 | 湖南七纬科技有限公司 | Die-casting aluminum alloy material for 5G communication base station shell and preparation method thereof |
| CN111564251A (en) * | 2020-06-10 | 2020-08-21 | 江苏亨通电力特种导线有限公司 | Aluminum alloy stranded wire and manufacturing method thereof |
| CN112941376A (en) * | 2021-01-26 | 2021-06-11 | 佛山职业技术学院 | Alloy conductor material and preparation method and application thereof |
| CN113578997A (en) * | 2021-08-03 | 2021-11-02 | 南京超明精密合金材料有限公司 | Processing technology of super free-cutting precision alloy rod and wire |
| CN113578997B (en) * | 2021-08-03 | 2024-02-02 | 南京超明精密合金材料有限公司 | Processing technology of super-easy-cutting precision alloy rod wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106555083B (en) | 2018-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106555083B (en) | A kind of all aluminium alloy aerial condutor and preparation method thereof | |
| CN101914708B (en) | Al-Fe-Cu alloy material and preparation method thereof | |
| CN104894438B (en) | A kind of high conductivity heat-resisting aluminium alloy monofilament material and preparation method thereof | |
| CN110819873A (en) | High Nb-TiAl alloy added with nano yttrium oxide and preparation method thereof | |
| CN102808105A (en) | Method for preparing shape memory copper alloy | |
| CN101338389A (en) | Preparation method of rare earth copper alloy material for bulk dispersed copper preparation | |
| CN102212712A (en) | Beryllium copper alloy, copper bush for amorphous and/or nano crystal strip production equipment and preparation method | |
| CN111826545A (en) | A kind of copper-iron alloy material and its preparation method and application | |
| CN105695808A (en) | Aluminum alloy wire | |
| CN102560187B (en) | Method for preparing copper alloy for electrified railway contact network | |
| CN107230508A (en) | A kind of graphene rare earth aluminium alloy height leads the preparation method of material cable | |
| CN103952601B (en) | A kind of high conductivity heat-resisting aluminium alloy of alkaline including earth metal | |
| CN104911408A (en) | Hard aluminum conductor filament and preparation method thereof | |
| CN115831434A (en) | Process method of high-conductivity heat-resistant aluminum alloy and aluminum-clad steel core high-conductivity heat-resistant aluminum alloy wire | |
| CN110819853A (en) | A kind of high-conductivity soft aluminum monofilament and preparation method thereof | |
| CN107217204B (en) | A kind of preparation method of Fe-Mn-Al systems alloy | |
| CN104630555A (en) | High-strength corrosion resisting brass material and preparation method thereof | |
| CN102051501B (en) | High-strength high-conductivity Cu-Ni-Al conductor material and preparation method thereof | |
| CN104561674A (en) | Heat-resistant aluminum alloy conductor material with electric conductivity of 62 percent and preparation method for heat-resistant aluminum alloy conductor material | |
| CN108823464B (en) | A kind of copper alloy material and preparation method thereof | |
| CN117587299A (en) | High-strength high-conductivity heat-resistant aluminum alloy energy-saving wire rod and preparation method and application thereof | |
| CN106834813A (en) | A kind of high intensity element containing gadolinium aluminium alloy conductor and preparation method thereof | |
| CN106887266B (en) | A kind of manufacturing method of high strength heat resistant alloy conducting wire | |
| CN110923529A (en) | Al-Cu-Sr-RE-Ge aluminum alloy wire for power cable and preparation method thereof | |
| CN103352156B (en) | Prevent hot tearing aluminium alloy wires and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 Termination date: 20201205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |