A surface coating material for copper-free welding wire, its preparation method and application

A surface coating, non-copper-plated technology, applied in welding/cutting media/materials, welding equipment, manufacturing tools, etc., can solve problems such as poor, non-copper-plated wire, poor anti-rust performance, wear and conductivity of contact tips, etc. , to achieve the effect of improving rust resistance, improving grinding environment and improving welding process.

Active Publication Date: 2022-04-19
WUHAN TEMO WELDING CONSUMABLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of poor anti-rust performance of existing copper-free welding wire, serious wear of the contact tip and poor conductivity.

Method used

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  • A surface coating material for copper-free welding wire, its preparation method and application
  • A surface coating material for copper-free welding wire, its preparation method and application
  • A surface coating material for copper-free welding wire, its preparation method and application

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Embodiment 1

[0025] The present embodiment provides a kind of surface coating material that is used for copper-free welding wire, comprises the following components by mass percentage: palm oil 88%, polytetrafluoroethylene 7%, nano-titanium dioxide 1.0%, tin oxide 1.2% , nano antimony powder 0.5%, potassium borate 2.3%. Among them, the diameter of polytetrafluoroethylene is controlled at 20 μm, and the size of nano-titanium dioxide and nano-antimony powder is controlled at about 150 nm.

[0026] Surface coating material preparation method: heat the base oil in a reactor at 100°C and stir for 30 minutes; place the remaining materials in a small powder shaker for 1 hour, put them into the reactor after being fully and uniformly mixed, and heat to 100°C ℃, stirred for 40 minutes and then stood still to make a surface coating material for non-copper-plated welding wire.

[0027] The surface coating material prepared above is coated on the surface of the welding wire substrate by neck reductio...

Embodiment 2

[0029] The present embodiment provides a kind of surface coating material that is used for copper-free welding wire, comprises the following components by mass percentage: palm oil 90%, polytetrafluoroethylene 4.5%, nano-titanium dioxide 1.5%, tin oxide 1.0% , nano antimony powder 0.5%, potassium carbonate 2.5%. Among them, the diameter of polytetrafluoroethylene is controlled at 15 μm, and the size of nano-titanium dioxide and nano-antimony powder is controlled at about 100 nm.

[0030] Surface coating material preparation method: put the base oil in the reactor, heat to 90°C, and stir for 30 minutes; place the rest of the materials in a small powder shaker for 1 hour, put them into the reactor after being fully and uniformly mixed, and heat to 90°C, stirred for 40 minutes and then left to stand to make a surface coating material for non-copper-plated welding wire.

[0031] The surface coating material prepared above is coated on the surface of the welding wire substrate by ...

Embodiment 3

[0033] The present embodiment provides a kind of surface coating material that is used for copper-free welding wire, comprises the following components by mass percentage: animal fat oil 85%, polytetrafluoroethylene 10%, nano-titanium dioxide 2%, tin oxide 0.9%, nano antimony powder 0.6%, potassium borate 1.0%, potassium carbonate 0.5%. Among them, the diameter of polytetrafluoroethylene is controlled at 10 μm, and the size of nano-titanium dioxide and nano-antimony powder is controlled at about 50 nm.

[0034] Surface coating material preparation method: put the base oil in the reactor, heat to 100°C, and stir for 30 minutes; place the rest of the materials in a small powder shaker for 1 hour, put them into the reactor after being fully and uniformly mixed, and heat to Stir at 100°C for 40 minutes and then stand still to make a surface coating material for copper-free welding wire.

[0035] The surface coating material prepared above is coated on the surface of the welding w...

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Abstract

The invention provides a surface coating material for copper-free welding wire and its preparation method and application. The surface coating material includes the following components in mass percentage: 85-90% of base oil, polytetrafluoroethylene 4-10%, nano-titanium dioxide 1-2%, tin oxide 0.6-1.3%, nano-antimony powder 0.2-0.6%, arc stabilizer 1.5-2.5%. The invention improves the wire feeding performance by adding nano-titanium dioxide, nano-antimony powder and other components, reduces the wear rate of the contact tip, and takes into account excellent electrical conductivity. At the same time, the addition of arc stabilizers such as potassium borate and sodium carbonate improves the arc of copper-free welding wire. Stability, reducing spatter, so that the welding process has been greatly improved. The coefficient of variation of current and voltage is reduced by 5-10% and the spatter rate is reduced by 10-15% through Hannover quantitative measurement.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to a surface coating material for copper-free welding wire, a preparation method and application thereof. Background technique [0002] With the continuous development of welding equipment and the continuous improvement of automation, the use of gas-shielded solid welding wire is becoming more and more common. However, traditional gas-shielded solid welding wire is mainly copper-plated welding wire, and there are still a series of problems in the process of production and use: production The acid and alkali pollution in the process is serious, and the high energy consumption of electroplating is not conducive to environmental protection; the copper plating layer is easy to fall off, which intensifies electrochemical corrosion, and blocks the wire feeding hose, resulting in poor rust prevention and poor wire feeding; Large smoke and dust, poor molding and other ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/365B23K35/40
CPCB23K35/3613B23K35/365B23K35/404B23K35/0272
Inventor 周海龙宋昌宝续杰汪涛包润新
Owner WUHAN TEMO WELDING CONSUMABLES CO LTD
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