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CN116787024B - A surface coating of non-copper-plated gas shielded welding wire - Google Patents

A surface coating of non-copper-plated gas shielded welding wire Download PDF

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Publication number
CN116787024B
CN116787024B CN202310758575.9A CN202310758575A CN116787024B CN 116787024 B CN116787024 B CN 116787024B CN 202310758575 A CN202310758575 A CN 202310758575A CN 116787024 B CN116787024 B CN 116787024B
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Prior art keywords
coating
welding wire
copper
gas shielded
coated
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CN202310758575.9A
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CN116787024A (en
Inventor
贾军
丁兴龙
刘一龙
赵伟
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Suzhou Qiji Welding Material Co ltd
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Suzhou Qiji Welding Material Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2506/00—Halogenated polymers
    • B05D2506/10—Fluorinated polymers
    • B05D2506/15—Polytetrafluoroethylene [PTFE]

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Lubricants (AREA)

Abstract

The invention belongs to the field of copper-plating-free welding wire surface treatment in the welding wire industry, and particularly relates to a copper-plating-free gas shielded welding wire surface coating. The coating comprises a coating 1 and a coating 2, wherein the coating 1 comprises graphene, polytetrafluoroethylene, tungsten disulfide, boron nitride and titanium dioxide, and the coating 2 is an antirust coating material PROTEC-WLS04. And continuously drawing the welding wire to be coated for a plurality of times, after the diameter of the welding wire is drawn to be 0.78-5.5 mm, putting the coating 1 into a powder coating device, coating through the powder coating device, wiping, and then coating the coating 2 through an oiling device to prepare the surface coating welding wire. The welding wire has stronger lubrication and conductivity, effectively reduces the abrasion of the contact tip under the high-temperature condition, has stable electric arc, less splashing, attractive welding line formation, and the abrasion of the contact tip is close to that of a copper-plated welding wire in the using process of the welding wire, and is superior to the industry level.

Description

Copper-plating-free gas shielded welding wire surface coating
Technical Field
The invention belongs to the field of copper-plating-free welding wire surface treatment in the welding wire industry, and particularly relates to a copper-plating-free gas shielded welding wire surface coating.
Background
The production process of the copper-plated welding wire does not have acid washing and copper plating, is a necessary product of green production, and along with the increasing national requirements on environmental protection, welding wire manufacturers gradually transform to the production of the copper-plated welding wire, and the production mode adopts a surface coating mode for production so as to achieve good rust prevention, conductivity and lubricating performance of the welding wire. However, because the coating materials of all factories are different, the use manufacturability of the copper-free welding wire is quite different, for example, the main components of the surface coating formula of the copper-free welding wire in the existing market are conductive and lubricating components such as molybdenum disulfide, colloidal graphite, polytetrafluoroethylene, titanium nitride and the like, and the stability of the welding process is affected by mixed coating of lubricant, rust-proof oil and the like, so that the welding process problems such as sudden increase of splashing, abnormal wear of a conductive nozzle, abnormal weld joint formation and the like are caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a copper-plating-free welding wire surface coating. Graphene, polytetrafluoroethylene, tungsten disulfide, boron nitride and titanium dioxide are mixed in proportion and then coated on the surface of a welding wire through friction, so that the surface of the welding wire can be uniformly covered, the welding wire has stronger lubrication and conductivity, the abrasion of a conductive nozzle under a high-temperature condition is effectively reduced, the welding wire is coated with rust-preventive oil in a certain proportion after being coated, the welding wire has stronger rust-preventive property, an electric arc is stable, splashing is small, welding seam formation is attractive, the abrasion of the conductive nozzle is close to that of a copper-plated welding wire, and the welding wire is superior to the industry level.
In order to achieve the above object or other objects, the present invention is achieved by the following technical solutions:
The invention provides a copper-plating-free gas shielded welding wire surface coating, which comprises a coating 1 and a coating 2, wherein the coating 1 comprises, by weight, 10-30 parts of graphene, 10-20 parts of polytetrafluoroethylene, 20-30 parts of tungsten disulfide, 15-25 parts of boron nitride and 15-25 parts of titanium dioxide, and the coating 2 is an antirust coating material PROTEC-WLS04.
Wherein the particle size of the graphene is 0.5-2 mu m, the particle size of polytetrafluoroethylene is 8-12 mu m, the particle size of tungsten disulfide is less than or equal to 0.5 mu m, the particle size of boron nitride is 6-10 mu m, and the particle size of titanium dioxide is less than or equal to 0.5 mu m.
The coating 1 of the copper-plating-free gas shielded welding wire is prepared by placing graphene, polytetrafluoroethylene, tungsten disulfide, boron nitride and titanium dioxide in a dry stirrer according to a certain proportion, stirring and mixing uniformly, and drying after stirring.
Further, the stirring speed is 100-200r/min, the stirring time is 20-30min, and the drying temperature is 50-65 ℃.
Wherein, the coating 2 is a welding wire protecting liquid WLS04 produced by PROTEC.
The invention also provides a preparation method of the copper-free gas shielded welding wire surface coating, which comprises the steps of continuously drawing a welding wire to be coated for a plurality of times, after the diameter of the welding wire is drawn to be 0.78-5.5 mm, putting the prepared welding wire coating 1 into a powder coating device, coating by the powder coating device, wiping, and then coating the coating 2 by an oiling device to prepare the copper-free gas shielded welding wire with the surface coating.
Wherein the coating weight of the coating 1 is 10-50 g/ton, the coating weight of the coating 2 is 80-150 g/ton, and the coating weight of the coating 1+the coating 2 is 90-200 g/ton.
The beneficial effects of the invention are as follows:
(1) The tungsten disulfide has good metal surface adhesion, and the tungsten disulfide is added into the coating to enhance the bonding strength between the graphene and the surface of the welding wire, so that the coating is compact and is not easy to fall off;
(2) The graphene has good conductivity and high temperature resistance, and the resistance value of the surface of the welding wire can be reduced by adding the graphene, so that the temperature of the conducting nozzle during welding is reduced;
(3) Polytetrafluoroethylene and titanium dioxide can enhance the surface lubrication of the welding wire, and can effectively reduce the abrasion of the contact tip;
(4) The boron nitride has good high-temperature lubrication effect, and reduces the abrasion of the contact tip at a high temperature.
The coating is designed according to the proportion, the rust resistance of the produced welding wire is superior to that of a copper-plated welding wire, and the welding wire has the advantages of stable electric arc, less splashing, attractive welding seam forming and small wear rate of a conductive nozzle in the welding process.
Detailed Description
The present invention will be further described with reference to specific examples, but the scope of the present invention is not limited thereto.
Example 1:
the copper-free welding wire comprises a welding wire to be coated with 1.2mm of ER70S-6 material, and a coating 1 and a coating 2 coated on the surface of the welding wire, wherein the coating 1 comprises, by mass, 10% of graphene, 15% of polytetrafluoroethylene, 30% of tungsten disulfide, 20% of boron nitride and 25% of titanium dioxide.
And after the ER 70S-6.2 mm of the welding wire is subjected to conventional drawing, carrying out surface cleaning and drying, and uniformly mixing and coating the coating with the surface of the welding wire to obtain the welding wire. The coating amount of the coating 1 was 10 g/ton, the coating amount of the coating 2 was 80 g/ton, and the diameter of the welding wire was 1.2mm.
Example 2:
The copper-free welding wire comprises a welding wire to be coated with 1.2mm of ER70S-6 material, and a coating 1 and a coating 2 coated on the surface of the welding wire, wherein the coating comprises, by mass, 20% of graphene, 20% of polytetrafluoroethylene, 20% of tungsten disulfide, 20% of boron nitride and 20% of titanium dioxide.
And after the ER 70S-6.2 mm coated welding wire is conventionally drawn, carrying out surface cleaning and drying, and uniformly mixing and coating the coating with the surface of the welding wire to obtain the welding wire. The coating amount of the coating 1 was 10 g/ton, the coating amount of the coating 2 was 100 g/ton, and the diameter of the welding wire was 1.2mm.
Example 3:
The copper-free welding wire comprises a welding wire to be coated with 1.2mm of ER70S-6 material, and a coating 1 and a coating 2 coated on the surface of the welding wire, wherein the coating comprises, by mass, 30% of graphene, 10% of polytetrafluoroethylene, 20% of tungsten disulfide, 20% of boron nitride and 20% of titanium dioxide.
And after the ER 70S-6.2 mm coated welding wire is conventionally drawn, carrying out surface cleaning and drying, and uniformly mixing and coating the coating with the surface of the welding wire to obtain the welding wire. The coating amount of the coating 1 was 25 g/ton, the coating amount of the coating 2 was 120 g/ton, and the diameter of the welding wire was 1.2mm.
Example 4:
The copper-free welding wire comprises a welding wire to be coated with 1.2mm of ER70S-6 material, and a coating 1 and a coating 2 coated on the surface of the welding wire, wherein the coating comprises, by mass, 10% of graphene, 20% of polytetrafluoroethylene, 25% of tungsten disulfide, 25% of boron nitride and 20% of titanium dioxide.
And after the ER 70S-6.2 mm coated welding wire is conventionally drawn, carrying out surface cleaning and drying, and uniformly mixing and coating the coating with the surface of the welding wire to obtain the welding wire. The coating amount of the coating 1 was 50 g/ton, the coating amount of the coating 2 was 150 g/ton, and the diameter of the welding wire was 1.2mm.
Example 5:
The copper-free welding wire comprises a welding wire to be coated with 1.2mm of ER70S-6 material, a coating 1 and a coating 2 coated on the surface of the welding wire, wherein the coating comprises, by mass, 15% of graphene, 20% of polytetrafluoroethylene, 30% of tungsten disulfide, 20% of boron nitride and 15% of titanium dioxide.
And after the ER 70S-6.2 mm coated welding wire is conventionally drawn, carrying out surface cleaning and drying, and uniformly mixing and coating the coating with the surface of the welding wire to obtain the welding wire. The coating amount of the coating 1 was 50 g/ton, the coating amount of the coating 2 was 90 g/ton, and the diameter of the welding wire was 1.2mm.
Example 6:
The copper-free welding wire comprises a welding wire to be coated with 1.2mm of ER70S-6 material, a coating 1 and a coating 2 coated on the surface of the welding wire, wherein the coating comprises, by mass, 20% of graphene, 10% of polytetrafluoroethylene, 20% of tungsten disulfide, 25% of boron nitride and 25% of titanium dioxide.
And after the ER 70S-6.2 mm coated welding wire is conventionally drawn, carrying out surface cleaning and drying, and uniformly mixing and coating the coating with the surface of the welding wire to obtain the welding wire. The coating amount of the coating 1 was 10 g/ton, the coating amount of the coating 2 was 150 g/ton, and the diameter of the welding wire was 1.2mm.
Each welding test was performed on the copper-free welding wires of examples 1 to 6 described above according to the relevant standard specifications. The welding process parameters are shown in table 1 below, and the welding performance is shown in table 2 below.
TABLE 1 welding process parameters
Voltage (V) Electric current Gas and its preparation method Welding speed Dry elongation Welding time
30V 280A 8%CO2+92%Ar 6mm/S 15mm 20min
TABLE 2 welding process Performance
Wear rate of the contact tip: m0 is the initial contact tip weight, and m1 is the contact tip weight after the spatter removal after 20 minutes of continuous welding.
Wire feeding performance, namely winding a 5-meter welding wire hose into a circle of 20cm, wherein the welding can be performed under the two-circle test condition and the welding can be performed under the three-circle test condition.
Arc stability is evaluated by feeding back current and voltage stability through a high-speed camera system.
Smoke dust amount is the smoke dust volatilized from the surface of the welding wire under the condition of 10V and 30A current, and is evaluated by a smoke dust comparison chart. And (3) the splashing amount is evaluated by performing fillet welding under the condition of the same welding technological parameters and the same length.
The test results of examples 1 to 6 show that the surface coating of the invention has smaller wear rate of the contact tip during welding, good wire feeding property and arc stability, and better comprehensive properties of dust amount and splashing amount than those of non-copper-plated welding wires and copper-plated welding wires of partial factories.
The examples are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present invention are within the scope of the present invention.

Claims (6)

1.一种无镀铜气体保护焊丝表面涂层，其特征在于，包括涂层1和涂层2，所述涂层1包括以下原料组分及质量百分比：石墨烯10-30%，聚四氟乙烯10-20%，二硫化钨20-30%，氮化硼20-25%，二氧化钛15-25%；所述涂层2为防锈涂覆材料PROTEC-WLS04；1. A surface coating of a non-copper-plated gas shielded welding wire, characterized in that it comprises a coating 1 and a coating 2, wherein the coating 1 comprises the following raw material components and mass percentages: 10-30% graphene, 10-20% polytetrafluoroethylene, 20-30% tungsten disulfide, 20-25% boron nitride, and 15-25% titanium dioxide; the coating 2 is a rust-proof coating material PROTEC-WLS04; 其中，所述石墨烯的粒径为0.5-2μm，聚四氟乙烯粒径8-12μm，二硫化钨粒径小于或等于0.5μm，氮化硼粒径6-10μm，二氧化钛粒径小于或等于0.5μm。The particle size of the graphene is 0.5-2 μm, the particle size of the polytetrafluoroethylene is 8-12 μm, the particle size of the tungsten disulfide is less than or equal to 0.5 μm, the particle size of the boron nitride is 6-10 μm, and the particle size of the titanium dioxide is less than or equal to 0.5 μm. 2.如权利要求1所述的无镀铜气体保护焊丝表面涂层，其特征在于，所述无镀铜气体保护焊丝的涂层1由下述步骤制得：按比例将石墨烯、聚四氟乙烯、二硫化钨、氮化硼、二氧化钛置于干性搅拌器中搅拌混合均匀，搅拌后进行烘干。2. The surface coating of the copper-free gas shielded welding wire as described in claim 1 is characterized in that the coating 1 of the copper-free gas shielded welding wire is obtained by the following steps: placing graphene, polytetrafluoroethylene, tungsten disulfide, boron nitride, and titanium dioxide in a dry mixer in proportion, stirring and mixing them evenly, and drying them after stirring. 3.如权利要求2所述的无镀铜气体保护焊丝表面涂层，其特征在于，搅拌速度为100-200r/min，搅拌时间为20-30min，烘干温度为50-65℃。3. The surface coating of the copper-free gas shielded welding wire as described in claim 2 is characterized in that the stirring speed is 100-200r/min, the stirring time is 20-30min, and the drying temperature is 50-65°C. 4.如权利要求1所述的无镀铜气体保护焊丝表面涂层，其特征在于，所述的涂层2为PROTEC生产的一种焊丝保护液WLS04。4. The surface coating of the copper-free gas shielded welding wire as described in claim 1 is characterized in that the coating 2 is a welding wire protection liquid WLS04 produced by PROTEC. 5.如权利要求1～4任一项所述的无镀铜气体保护焊丝表面涂层的制备方法，其特征在于，步骤为：5. The method for preparing the surface coating of the non-copper-plated gas shielded welding wire according to any one of claims 1 to 4, characterized in that the steps are: 将待涂焊丝连续经过多次拉拔，焊丝直径拉拔至直径0.78mm-5.5mm后，将权利要求3制成的焊丝涂层1装在涂粉设备中，通过涂粉设备涂覆，擦拭后再通过涂油装置将涂层2进行涂覆，制成具有表面涂层的无镀铜气体保护焊丝。The welding wire to be coated is continuously drawn for multiple times, and after the welding wire diameter is drawn to a diameter of 0.78mm-5.5mm, the welding wire coating 1 prepared according to claim 3 is installed in a powder coating device, coated by the powder coating device, wiped and then coated by an oil coating device, to prepare a copper-free gas shielded welding wire with a surface coating. 6.如权利要求5所述的制备方法，其特征在于，涂层1的涂覆重量为10-50g/吨，涂层2的涂覆重量为：80-150g/吨，涂层1+涂层2的涂覆重量为90-200克/吨。6. The preparation method as claimed in claim 5, characterized in that the coating weight of coating 1 is 10-50 g/ton, the coating weight of coating 2 is 80-150 g/ton, and the coating weight of coating 1 + coating 2 is 90-200 g/ton.
CN202310758575.9A 2023-06-26 2023-06-26 A surface coating of non-copper-plated gas shielded welding wire Active CN116787024B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107214441A (en) * 2017-06-23 2017-09-29 天津市永昌焊丝有限公司 One kind is without copper plating soldering wire production technology
CN111644778A (en) * 2020-05-26 2020-09-11 武汉铁锚焊接材料股份有限公司 Surface coating material for copper-free welding wire and preparation method and application thereof
CN115555760A (en) * 2022-10-26 2023-01-03 山东聚力焊接材料有限公司 Copper-free welding wire, coating thereof and preparation method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW418148B (en) * 1997-11-11 2001-01-11 Kobe Steel Ltd Wire for welding
JP3529669B2 (en) * 1999-05-17 2004-05-24 株式会社神戸製鋼所 No plating wire for arc welding and arc welding method
US8901455B2 (en) * 2008-06-18 2014-12-02 Lincoln Global, Inc. Welding wire for submerged arc welding
CN102433204A (en) * 2011-10-15 2012-05-02 深圳市优宝惠新材料科技有限公司 Valve element sealing lubricant composition
CN212398559U (en) * 2020-05-15 2021-01-26 山东诚铭建设机械有限公司 Copper-plating-free environment-friendly welding wire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107214441A (en) * 2017-06-23 2017-09-29 天津市永昌焊丝有限公司 One kind is without copper plating soldering wire production technology
CN111644778A (en) * 2020-05-26 2020-09-11 武汉铁锚焊接材料股份有限公司 Surface coating material for copper-free welding wire and preparation method and application thereof
CN115555760A (en) * 2022-10-26 2023-01-03 山东聚力焊接材料有限公司 Copper-free welding wire, coating thereof and preparation method

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