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.
CN111644778BActive Publication Date: 2022-04-19WUHAN TEMO WELDING CONSUMABLES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN TEMO WELDING CONSUMABLES CO LTD
Publication Date
2022-04-19

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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.
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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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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