CN110257650A - A kind of preparation method of the monel metal for pressed sheet - Google Patents
A kind of preparation method of the monel metal for pressed sheet Download PDFInfo
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- CN110257650A CN110257650A CN201910628640.XA CN201910628640A CN110257650A CN 110257650 A CN110257650 A CN 110257650A CN 201910628640 A CN201910628640 A CN 201910628640A CN 110257650 A CN110257650 A CN 110257650A
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- monel metal
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- ingot casting
- monel
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- 229910000792 Monel Inorganic materials 0.000 title claims abstract description 103
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 238000002844 melting Methods 0.000 claims abstract description 59
- 230000008018 melting Effects 0.000 claims abstract description 57
- 238000005266 casting Methods 0.000 claims abstract description 54
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 41
- 239000000956 alloy Substances 0.000 claims abstract description 41
- 230000006698 induction Effects 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000002344 surface layer Substances 0.000 claims abstract description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 36
- 239000000843 powder Substances 0.000 claims description 36
- 239000004615 ingredient Substances 0.000 claims description 27
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 24
- 239000001307 helium Substances 0.000 claims description 23
- 229910052734 helium Inorganic materials 0.000 claims description 23
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 229910052786 argon Inorganic materials 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- 239000011819 refractory material Substances 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 13
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 12
- 239000004327 boric acid Substances 0.000 claims description 12
- 239000000395 magnesium oxide Substances 0.000 claims description 12
- 239000011265 semifinished product Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 2
- 229910052571 earthenware Inorganic materials 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 238000005204 segregation Methods 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 238000005275 alloying Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical compound [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000006105 batch ingredient Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910052596 spinel Inorganic materials 0.000 description 3
- 239000011029 spinel Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000556 Monel K-500 Inorganic materials 0.000 description 1
- 229910018054 Ni-Cu Inorganic materials 0.000 description 1
- 229910018481 Ni—Cu Inorganic materials 0.000 description 1
- 241001417527 Pempheridae Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized mixtures
-
- 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
-
- 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
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/002—Alloys based on nickel or cobalt with copper as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details specially adapted for crucible or pot furnaces
- F27B14/10—Crucibles
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details specially adapted for crucible or pot furnaces
- F27B14/10—Crucibles
- F27B2014/102—Form of the crucibles
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Ceramic Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of preparation methods of monel metal for pressed sheet, implement according to following procedure: step 1: preparing monel metal raw material, step 2: preparing the refractory crucible of molten alloy, step 3: vacuum induction melting is carried out using vacuum induction melting furnace, obtain monel metal ingot casting, step 4: ingot casting is machined out, head is loose, hollow sectors excision, again by surface Che Guangzhi non-scale, step 5: vacuum consumable remelting, step 6: removal monel metal ingot casting surface layer is machined by lathe；Inventive process ensures that alloying component is accurate, metallic element problem of oxidation is in turn avoided, subsequent vacuum consumable reflow process further reduced component segregation, improve the structural homogenity of alloy.
Description
Technical field
The invention belongs to field of alloy preparation technology, and in particular to a kind of preparation of the monel metal for pressed sheet
Method.
Background technique
Monel metal belongs to one of nickel-base alloy, and major components are Ni and Cu, other than host element Ni and Cu,
Usually also contain other a variety of alloying elements, such as iron, manganese, silicon, aluminium, sulphur, carbon, they play solution strengthening, second-phase strength,
The effects of intercrystalline strengthening, and there is good corrosion resistance to halogen and its compound, non-oxidizing acid, alkali, salt etc.,
Also the corrosion of the media such as hydrofluoric acid, acetic acid, reducing inorganic acid, organic acid can be born；Meanwhile monel metal also has molding
Property good, Cutting free processing, the easily excellent comprehensive performance such as welding.Monel metal in 1906 by International nickel Co. Ltd. Inco. Ltd., the U.S. develop at
Function, Exemplary chemical ingredient are Ni:70wt% and Cu:30wt%, are currently most widely used a kind of conjunction in abros
Golden material.For example, monel metal is widely used as pushing away beam hanger material in oil and natural gas industry field, and it is prepared into
Other oil tools and instrument etc.；The naval vessel of production monel metal propeller shaft and mine sweeper anchor hawser, show in the seawater
Good antifatigue and corrosion resistance.Currently, many monel metal parts need with the fast development of industrial technology
Long-term under high temperature, high pressure, corrosive environment, reliable, safety use, it is therefore, more next to the performance requirement of monel metal product
It is higher.
But monel metal melting in non-vacuum environment, during high melt alloy easily aoxidize, air-breathing, lead
It causes to form a large amount of stomata in alloy or generates a large amount of field trashes on crystal boundary, alloy property is seriously reduced, in addition to main constituent element is easy
Oxidation is outer, and monel metal can also largely dissolve H under high temperature2With CO gas；In order to solve above-mentioned technological problems, domestic some enterprises
Industry and related research institutes mainly improve the performance of alloy using improving smelting technology and adding the method for microelement, still
The equipment used in research and production process be still with antivacuum intermediate frequency furnace it is main, by addition microelement to reach
Refining and Metamorphism treatment are carried out to alloy, to improve the comprehensive performance of alloy.For example, Central China University of Science and Technology Wei Shihe et al. is ground
Studying carefully to show tightly to cover and effectively refine helps to reduce monel metal air content, reduces harmful field trash, improves mechanicalness
Energy and corrosion resisting property；Shanghai Communications University Zhang Huiqiang et al. has found that micro Mg, Cr and Co mould the high temperature of Monel K-500 alloy
Property tool improve significantly, technic metal shows certain superplasticity at high temperature, this is because the addition of micro Mg
Crystal boundary binding force can be improved, improve high-temp plastic；But other performances are not significantly improved.
Summary of the invention
The object of the present invention is to provide a kind of preparation methods of monel metal for pressed sheet, solve existing skill
The monel metal gas content prepared in art is high, plasticity is poor, there are problems that more harmful field trash.
The technical scheme adopted by the invention is that a kind of preparation method of the monel metal for pressed sheet, specifically
It follows the steps below to implement:
Step 1, ingredient: ingredient is carried out according to the requirement of composition range in the monel metal trade mark；
Step 2, the refractory crucible of molten alloy is prepared
Refractory material is uniformly mixed, is put into the mold of middle part insertion graphite core, and mold is placed in induction coil, knots
It is shaped to the semi-finished product crucible of drum-shaped, power transmission induction heating graphite core toasts semi-finished product crucible, obtains surface compact
Crucible, after baking, pump graphite core, clear up inside the crucible of surface compact, the monel for being used for prepurging is put into
Melting is primary in crucible after cleaning, obtains finished product crucible；
Step 3, vacuum induction melting is carried out using vacuum induction melting furnace
The monel metal of step 1 ingredient is put into the melting kettle prepared through step 2, starts mechanical pump to induction
Melting stove evacuation after vacuum degree reaches 2Pa~5Pa, starts lobe pump to equipment pumping high vacuum, when vacuum degree reaches 1 × 10- 1After Pa, start melting power supply molten alloy, until applying argon gas is refined after being completely melt, after refining, by the illiteracy of fusing
Cooling room temperature, demoulding are carried out in alloy casting to ingot mould like this, obtains monel metal ingot casting；
Step 4, ingot casting is processed: the monel metal ingot casting that step 3 obtains is machined out, it is head is loose, empty
Part is cut off, then by surface Che Guangzhi non-scale；
Step 5, vacuum consumable remelting
The dummy electrode of the monel metal ingot casting and consumable electrode vacuum furnace that handle through step 4 is welded using argon arc welding,
Monel metal ingot casting is fitted into consumable electrode vacuum furnace again, vacuumize process is carried out, starts melting after vacuumizing, to vacuum
It is passed through helium in the crystallizer of self-consuming furnace to be cooled down, after fusing, stopping is passed through helium, passes through consumable electrode vacuum furnace crystallizer
In recirculated water monel metal ingot casting is cooled to room temperature；
Step 6, the monel metal ingot casting surface layer handled by lathe machining removal through step 5.
The features of the present invention also characterized in that
In step 2, refractory material is composed of the following components by mass percentage: electrofusion magnesia powder 85~90%, aluminium oxide
Fine powder 9~13% and mix boric acid powder 1~2%；
The granularity of electrofusion magnesia powder is 0~4.0mm, and the granularity of aluminum oxide fine powder is 0~1.0mm, mixes the granularity of boric acid powder
No more than 0.5mm.
In step 2, the temperature of baking is 1000 DEG C~1100 DEG C, and the time is 8~12h, crucible internal diameter be 300mm~
400mm, depth are 500mm~600mm, and the volume density of crucible is greater than 99.5%.
In step 3, the vacuum degree of requirement is vacuum-treated less than 1 × 10-1Pa, the purity of argon gas are greater than 99.8wt%, refining
Time be 15~20min.
In step 5, welding material is vacuum-treated the vacuum of requirement using monel metal similar in the identical trade mark or ingredient
Degree is not higher than 1 × 10-1Pa, the speed of melting are 3~5kg/min, and the pressure for being passed through helium is 20mbr~40mbr.
In step 6, go desurfacing with a thickness of 2~4mm.
The beneficial effects of the present invention are:
(1) a kind of preparation method of the monel metal for pressed sheet of the present invention, using process for vacuum induction smelting,
It ensure that the accurate of alloying component, in turn avoid metallic element problem of oxidation, subsequent vacuum consumable reflow process further drops
Low component segregation, improves the structural homogenity of alloy, haves laid a good foundation for subsequent forging and rolling processing；
(2) a kind of preparation method of the monel metal for pressed sheet of the present invention, melting kettle use electric-melting magnesium-aluminium
Spinel refractory preparation, and the consistency of crucible is greater than 99.5%, and magnesium-aluminium spinel refractory material heat resistanceheat resistant vibration property is good,
It reduces and peels off in fusion process, help to reduce the inclusion content in alloy；
(3) a kind of preparation method of the monel metal for pressed sheet of the present invention is passed through using helium gas cooling technology
Helium and cooling water system cool down the ingot casting in vacuum consumable reflow process, can effectively reduce monel metal steel ingot at
Divide segregation, improves the lot stability of alloy.
Specific embodiment
The present invention is described in detail With reference to embodiment.
A kind of preparation method of the monel metal for pressed sheet of the present invention, is specifically implemented according to the following steps:
Step 1, ingredient: ingredient is carried out according to the requirement of composition range in the monel metal trade mark, is produced into reduce
This, can be used ambrose alloy (Ni-Cu) intermediate alloy, other micro element material also can be used intermediate alloy mode and be added, but
It is that must be strictly controlled component content in the range of alloy designations requirement；
Step 2, the refractory crucible of molten alloy is prepared
Refractory material is uniformly mixed, is put into the mold of middle part insertion graphite core, and mold is placed in induction coil, knots
It is shaped to the semi-finished product crucible of drum-shaped, power transmission induction heating graphite core toasts semi-finished product crucible, obtains surface compact
Crucible, after baking, pump graphite core, clear up inside the crucible of surface compact, the monel for being used for prepurging is put into
Melting is primary in crucible after cleaning, obtains finished product crucible；
Wherein, refractory material is composed of the following components by mass percentage: electrofusion magnesia powder 85~90%, aluminum oxide fine powder
9~13% and mix boric acid powder 1~2%；The granularity of electrofusion magnesia powder is 0~4.0mm, the granularity of aluminum oxide fine powder is 0~
1.0mm mixes the granularity of boric acid powder no more than 0.5mm；
The temperature of baking is 1000 DEG C~1100 DEG C, and the time is 8~12h, and crucible internal diameter is 300mm~400mm, and depth is
The volume density of 500mm~600mm, crucible are greater than 99.5%；
Step 3, vacuum induction melting is carried out using vacuum induction melting furnace
The monel metal of step 1 ingredient is put into the melting kettle prepared through step 2, starts mechanical pump to induction
Melting stove evacuation after vacuum degree reaches 2Pa~5Pa, starts lobe pump to equipment pumping high vacuum, when vacuum degree reaches 1 × 10- 1After Pa, start melting power supply molten alloy, until applying argon gas is refined after being completely melt, after refining, by the illiteracy of fusing
Cooling room temperature, demoulding are carried out in alloy casting to ingot mould like this, obtains monel metal ingot casting；
Wherein, the purity of argon gas is greater than 99.8wt%, and the time of refining is 15~20min；
Step 4, ingot casting is processed: the monel metal ingot casting that step 3 obtains is machined out, it is head is loose, empty
Part is cut off, then by surface Che Guangzhi non-scale；
Step 5, vacuum consumable remelting
The dummy electrode of the monel metal ingot casting and consumable electrode vacuum furnace that handle through step 4 is welded using argon arc welding,
No gradient that both postweldings are straight, then monel metal ingot casting is fitted into consumable electrode vacuum furnace, vacuumize process is carried out, knot is vacuumized
Start melting after beam, the crystallizer of self-consuming furnace has helium gas cooling device, be passed through into the crystallizer of consumable electrode vacuum furnace helium into
Row cooling, after fusing, stopping is passed through helium, by the recirculated water in consumable electrode vacuum furnace crystallizer to monel metal ingot casting
It is cooled to room temperature；
Using monel metal similar in the identical trade mark or ingredient, the vacuum degree for being vacuum-treated requirement is not higher than welding material
1×10-1Pa, the speed of melting are 3~5kg/min, and the purpose for controlling speed of melting is to reduce segregation, improve material
Structural homogenity, be passed through helium pressure be 20mbr~40mbr；
Step 6, the monel metal ingot casting surface layer handled by lathe machining removal through step 5, goes desurfacing
With a thickness of 2~4mm, main purpose be skim-coat field trash and volatilization layer material, avoid forging crack, raising is become a useful person
Rate.
Embodiment 1
A kind of preparation method of the monel metal for pressed sheet of the present invention, is specifically implemented according to the following steps:
Step 1, ingredient, melting kettle batch ingredient: are carried out according to the requirement of composition range in the monel metal trade mark
500kg, then ingredients by weight is Ni:325Kg；Cu:152.5Kg；C:1Kg；Si:1.5Kg；Mn:10Kg；Fe:10Kg；
Step 2, the refractory crucible of molten alloy is prepared
Refractory material is uniformly mixed, is put into the mold of middle part insertion graphite core, and mold is placed in induction coil, knots
It is shaped to the semi-finished product crucible of drum-shaped, power transmission induction heating graphite core toasts semi-finished product crucible, obtains surface compact
Crucible, after baking, pump graphite core, clear up inside the crucible of surface compact, the monel for being used for prepurging is put into
Melting is primary in crucible after cleaning, obtains finished product crucible；
Wherein, refractory material is composed of the following components by mass percentage: electrofusion magnesia powder 85%, aluminum oxide fine powder 13%
With mix boric acid powder 2%；The granularity of electrofusion magnesia powder is 0~4.0mm, and the granularity of aluminum oxide fine powder is 0~1.0mm, mixes boric acid powder
Granularity be not more than 0.5mm；
The temperature of baking is 1000 DEG C, time 12h, and crucible internal diameter is 300mm, depth 500mm, the volume density of crucible
Greater than 99.5%；
Step 3, vacuum induction melting is carried out using vacuum induction melting furnace
The monel metal of step 1 ingredient is put into the melting kettle prepared through step 2, starts mechanical pump to induction
Melting stove evacuation after vacuum degree reaches 2Pa, starts lobe pump to equipment pumping high vacuum, when vacuum degree reaches 1 × 10-1After Pa,
Start melting power supply molten alloy, until applying argon gas is refined after being completely melt, after refining, the Monel of fusing is closed
Gold, which is cast in ingot mould, carries out cooling room temperature, demoulding, obtains monel metal ingot casting；
Wherein, the purity of argon gas is greater than 99.8wt%, and the time of refining is 20min；
Step 4, ingot casting is processed: the monel metal ingot casting that step 3 obtains is machined out, it is head is loose, empty
Part is cut off, then by surface Che Guangzhi non-scale；
Step 5, vacuum consumable remelting
The dummy electrode of the monel metal ingot casting and consumable electrode vacuum furnace that handle through step 4 is welded using argon arc welding,
Monel metal ingot casting is fitted into consumable electrode vacuum furnace again, vacuumize process is carried out, starts melting after vacuumizing, to vacuum
It is passed through helium in the crystallizer of self-consuming furnace to be cooled down, after fusing, stopping is passed through helium, passes through consumable electrode vacuum furnace crystallizer
In recirculated water monel metal ingot casting is cooled to room temperature；
Using monel metal similar in the identical trade mark or ingredient, the vacuum degree for being vacuum-treated requirement is not higher than welding material
1×10-1Pa, the speed of melting are 3kg/min, and the pressure for being passed through helium is 20mbr；
Step 6, the monel metal ingot casting surface layer handled by lathe machining removal through step 5, goes desurfacing
With a thickness of 2mm.
After consumable remelting monel metal ingot casting composition detection the result shows that, oxygen (O%) content 35ppm in alloy；Nitrogen
(N%) content 60ppm；Hydrogen (H%) content is 5ppm.
Embodiment 2
A kind of preparation method of the monel metal for pressed sheet of the present invention, is specifically implemented according to the following steps:
Step 1, ingredient, melting kettle batch ingredient: are carried out according to the requirement of composition range in the monel metal trade mark
500kg, then ingredients by weight is Ni:325Kg；Cu:143.25Kg；C:0.75Kg；Si:1.5Kg；Mn:6Kg；Fe:6Kg；Al:
15Kg；Ti:2.5Kg；
Step 2, the refractory crucible of molten alloy is prepared
Refractory material is uniformly mixed, is put into the mold of middle part insertion graphite core, and mold is placed in induction coil, knots
It is shaped to the semi-finished product crucible of drum-shaped, power transmission induction heating graphite core toasts semi-finished product crucible, obtains surface compact
Crucible, after baking, pump graphite core, clear up inside the crucible of surface compact, the monel for being used for prepurging is put into
Melting is primary in crucible after cleaning, obtains finished product crucible；
Wherein, refractory material is composed of the following components by mass percentage: electrofusion magnesia powder 90%, aluminum oxide fine powder 9%
With mix boric acid powder 1%；The granularity of electrofusion magnesia powder is 0~4.0mm, and the granularity of aluminum oxide fine powder is 0~1.0mm, mixes boric acid powder
Granularity be not more than 0.5mm；
The temperature of baking is 1100 DEG C, time 8h, and crucible internal diameter is 400mm, depth 600mm, the volume density of crucible
Greater than 99.5%；
Step 3, vacuum induction melting is carried out using vacuum induction melting furnace
The monel metal of step 1 ingredient is put into the melting kettle prepared through step 2, starts mechanical pump to induction
Melting stove evacuation after vacuum degree reaches 5Pa, starts lobe pump to equipment pumping high vacuum, when vacuum degree reaches 1 × 10-1After Pa,
Start melting power supply molten alloy, until applying argon gas is refined after being completely melt, after refining, the Monel of fusing is closed
Gold, which is cast in ingot mould, carries out cooling room temperature, demoulding, obtains monel metal ingot casting；
Wherein, the purity of argon gas is greater than 99.8wt%, and the time of refining is 15min；
Step 4, ingot casting is processed: the monel metal ingot casting that step 3 obtains is machined out, it is head is loose, empty
Part is cut off, then by surface Che Guangzhi non-scale；
Step 5, vacuum consumable remelting
The dummy electrode of the monel metal ingot casting and consumable electrode vacuum furnace that handle through step 4 is welded using argon arc welding,
Monel metal ingot casting is fitted into consumable electrode vacuum furnace again, vacuumize process is carried out, starts melting after vacuumizing, to vacuum
It is passed through helium in the crystallizer of self-consuming furnace to be cooled down, after fusing, stopping is passed through helium, passes through consumable electrode vacuum furnace crystallizer
In recirculated water monel metal ingot casting is cooled to room temperature；
Using monel metal similar in the identical trade mark or ingredient, the vacuum degree for being vacuum-treated requirement is not higher than welding material
1×10-1Pa, the speed of melting are 5kg/min, and the pressure for being passed through helium is 40mbr；
Step 6, the monel metal ingot casting surface layer handled by lathe machining removal through step 5, goes desurfacing
With a thickness of 4mm.
After consumable remelting monel metal ingot casting composition detection the result shows that, oxygen (O%) content 30ppm in alloy；Nitrogen
(N%) content 50ppm；Hydrogen (H%) content 4ppm.
Embodiment 3
A kind of preparation method of the monel metal for pressed sheet of the present invention, is specifically implemented according to the following steps:
Step 1, ingredient, melting kettle batch ingredient: are carried out according to the requirement of composition range in the monel metal trade mark
500kg, then ingredients by weight is Ni:325Kg；Cu:152.5Kg；C:1Kg；Si:1.5Kg；Mn:10Kg；Fe:10Kg；
Step 2, the refractory crucible of molten alloy is prepared
Refractory material is uniformly mixed, is put into the mold of middle part insertion graphite core, and mold is placed in induction coil, knots
It is shaped to the semi-finished product crucible of drum-shaped, power transmission induction heating graphite core toasts semi-finished product crucible, obtains surface compact
Crucible, after baking, pump graphite core, clear up inside the crucible of surface compact, the monel for being used for prepurging is put into
Melting is primary in crucible after cleaning, obtains finished product crucible；
Wherein, refractory material is composed of the following components by mass percentage: electrofusion magnesia powder 87.5%, aluminum oxide fine powder
11% and mix boric acid powder 1.5%；The granularity of electrofusion magnesia powder is 0~4.0mm, and the granularity of aluminum oxide fine powder is 0~1.0mm, is mixed
The granularity of boric acid powder is not more than 0.5mm；
The temperature of baking is 1050 DEG C, time 10h, and crucible internal diameter is 350mm, depth 550mm, the volume density of crucible
Greater than 99.5%；
Step 3, vacuum induction melting is carried out using vacuum induction melting furnace
The monel metal of step 1 ingredient is put into the melting kettle prepared through step 2, starts mechanical pump to induction
Melting stove evacuation after vacuum degree reaches 3.5Pa, starts lobe pump to equipment pumping high vacuum, when vacuum degree reaches 1 × 10-1Pa
Afterwards, start melting power supply molten alloy, until applying argon gas is refined after being completely melt, after refining, by the Monel of fusing
Cooling room temperature, demoulding are carried out in alloy casting to ingot mould, obtain monel metal ingot casting；
Wherein, the purity of argon gas is greater than 99.8wt%, and the time of refining is 18min；
Step 4, ingot casting is processed: the monel metal ingot casting that step 3 obtains is machined out, it is head is loose, empty
Part is cut off, then by surface Che Guangzhi non-scale；
Step 5, vacuum consumable remelting
The dummy electrode of the monel metal ingot casting and consumable electrode vacuum furnace that handle through step 4 is welded using argon arc welding,
Monel metal ingot casting is fitted into consumable electrode vacuum furnace again, vacuumize process is carried out, starts melting after vacuumizing, to vacuum
It is passed through helium in the crystallizer of self-consuming furnace to be cooled down, after fusing, stopping is passed through helium, passes through consumable electrode vacuum furnace crystallizer
In recirculated water monel metal ingot casting is cooled to room temperature；
Using monel metal similar in the identical trade mark or ingredient, the vacuum degree for being vacuum-treated requirement is not higher than welding material
1×10-1Pa, the speed of melting are 4kg/min, and the pressure for being passed through helium is 30mbr；
Step 6, the monel metal ingot casting surface layer handled by lathe machining removal through step 5, goes desurfacing
With a thickness of 3mm.
After consumable remelting monel metal ingot casting composition detection the result shows that, oxygen (O%) content 33ppm in alloy；Nitrogen
(N%) content 55ppm；Hydrogen (H%) content is 5ppm.
A kind of preparation method of the monel metal for pressed sheet of the present invention, melting kettle use electric-melting magnesium-aluminium point
The preparation of spar refractory material, and the consistency of crucible is greater than 99.5%, and magnesium-aluminium spinel refractory material heat resistanceheat resistant vibration property is good, melts
It reduces and peels off during refining, help to reduce the inclusion content in alloy；Using process for vacuum induction smelting, alloy ensure that
Ingredient it is accurate, in turn avoid metallic element problem of oxidation, it is inclined that subsequent vacuum consumable reflow process further reduced ingredient
Analysis, improves the structural homogenity of alloy, haves laid a good foundation for subsequent forging and rolling processing；Using helium gas cooling skill
Art cools down the ingot casting in vacuum consumable reflow process by helium and cooling water system, can effectively reduce Monel conjunction
Golden ingot composition segregation, improves the lot stability of alloy.
Claims (6)
1. a kind of preparation method of the monel metal for pressed sheet, which is characterized in that be specifically implemented according to the following steps:
Step 1, ingredient: ingredient is carried out according to the requirement of composition range in the monel metal trade mark；
Step 2, the refractory crucible of molten alloy is prepared
Refractory material is uniformly mixed, is put into the mold of middle part insertion graphite core, and mold is placed in induction coil, knot molding
For the semi-finished product crucible of drum-shaped, power transmission induction heating graphite core toasts semi-finished product crucible, obtains the earthenware of surface compact
Crucible after baking, pumps graphite core, clears up inside the crucible of surface compact, and the monel for being used for prepurging is put into cleaning
Melting is primary in crucible afterwards, obtains finished product crucible；
Step 3, vacuum induction melting is carried out using vacuum induction melting furnace
The monel metal of step 1 ingredient is put into the melting kettle prepared through step 2, starts mechanical pump to induction melting
Stove evacuation after vacuum degree reaches 2Pa~5Pa, starts lobe pump to equipment pumping high vacuum, when vacuum degree reaches 1 × 10-1Pa
Afterwards, start melting power supply molten alloy, until applying argon gas is refined after being completely melt, after refining, by the Monel of fusing
Cooling room temperature, demoulding are carried out in alloy casting to ingot mould, obtain monel metal ingot casting；
Step 4, ingot casting is processed: the monel metal ingot casting that step 3 obtains being machined out, head is loose, hollow sectors
Excision, then by surface Che Guangzhi non-scale；
Step 5, vacuum consumable remelting
The dummy electrode of the monel metal ingot casting and consumable electrode vacuum furnace that handle through step 4 is welded using argon arc welding, then will
Monel metal ingot casting is fitted into consumable electrode vacuum furnace, is carried out vacuumize process, is started melting after vacuumizing, to vacuum consumable
It is passed through helium in the crystallizer of furnace to be cooled down, after fusing, stopping is passed through helium, by consumable electrode vacuum furnace crystallizer
Recirculated water is cooled to room temperature monel metal ingot casting；
Step 6, the monel metal ingot casting surface layer handled by lathe machining removal through step 5.
2. a kind of preparation method of monel metal for pressed sheet according to claim 1, which is characterized in that institute
It states in step 2, refractory material is composed of the following components by mass percentage: electrofusion magnesia powder 85~90%, aluminum oxide fine powder 9~
13% and mix boric acid powder 1~2%；
The granularity of electrofusion magnesia powder is 0~4.0mm, and the granularity of aluminum oxide fine powder is 0~1.0mm, and the granularity for mixing boric acid powder is little
In 0.5mm.
3. a kind of preparation method of monel metal for pressed sheet according to claim 2, which is characterized in that institute
It states in step 2, the temperature of baking is 1000 DEG C~1100 DEG C, and the time is 8~12h, and crucible internal diameter is 300mm~400mm, depth
Volume density for 500mm~600mm, crucible is greater than 99.5%.
4. a kind of preparation method of monel metal for pressed sheet according to claim 1, which is characterized in that institute
It states in step 3, the purity of argon gas is greater than 99.8wt%, and the time of refining is 15~20min.
5. a kind of preparation method of monel metal for pressed sheet according to claim 1, which is characterized in that institute
It states in step 5, for welding material using monel metal similar in the identical trade mark or ingredient, the vacuum degree for being vacuum-treated requirement is not high
In 1 × 10-1Pa, the speed of melting are 3~5kg/min, and the pressure for being passed through helium is 20mbr~40mbr.
6. a kind of preparation method of monel metal for pressed sheet according to claim 1, which is characterized in that institute
State in step 6, go desurfacing with a thickness of 2~4mm.
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