Gas protecting welding wire with nano-coating

A gas-shielded welding wire and nano-coating technology, which is applied to welding media, electrical components, manufacturing tools, etc., can solve the problems of lack of high-current gas-shielded welding wire, pitting corrosion on the surface of the welding wire, and weakened weld performance. Good rust, good weld toughness, stable arc effect

Active Publication Date: 2009-04-15
上海斯米克焊材有限公司
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Problems solved by technology

[0002] At present, the main method used by gas shielded welding wire is surface copper plating, but the disadvantage of copper plating is that the content of toxic substance copper (Cu) in welding fume is high, the welding spatter is large, and the surface of welding wire is prone to pitting corrosion.
And as the strength of the material increases, the transition of copper elements to the weld may weaken the weld performance
In order to solve the above-mentioned shortcomings of traditional copper-plated welding wire, many patents have proposed gas-shielded welding wires with different coating components and surface treatment methods made of water-soluble antirust agents and oil-soluble antirust agents, but there is still a lack of gas shielded welding wires that can achieve high efficiency. , low spatter high current gas shielded welding wire

Method used

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] A gas-shielded welding wire with a nano-coating has a coating on its surface, and the composition and weight percentage of the coating are:

[0019] Potassium tetraborate 0.05~0.18%,

[0020] Calcium stearate 0.15~0.80%,

[0021] Titanium dioxide balance;

[0022] The coating thickness is 100-300nm.

[0023] Preferably, the above-mentioned coating is sprayed on the surface of the welding wire by a sol-gel method.

[0024] Preferably, the above-mentioned sol-gel method uses organic titanium alkoxide hydrolysis reaction to initiate polycondensation reaction, first generates nano TiO 2 Sol, sprayed on the surface of the welding wire, when further polycondensation reaction will form a gel, after drying to obtain nano-TiO 2 coating.

[0025] Preferably, the organic titanium alkoxide is ethyl titanate or butyl titanate.

[0026] Prefer...

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Abstract

The invention relates to the welding field, in particular to a gas protection welding wire with nano coating. The gas protection welding wire with nano coating is characterized in that the surface of the welding wire is provided with a coating, and the coating comprises the following components in weight percentage: 0.05 to 0.18 percent of potassium tetraborate, 0.15 to 0.80 percent of calcium stearate, and the balance of titanium dioxide; and the thickness of the coating is between 100 and 300nm. Due to the adoption of the technical proposal, the defects that the weld spatter of the copper coated welding wire is big, the surface of the welding is easy for pitting corrosion, the copper element which is transitional to the welding seam possibly lowers the performance of the welding seam, and the content of the poisonous substance copper element is high are completely overcome, so that with the technical proposal of the invention, the gas protection welding wire which has the advantages of arc stability, small weld spatter, good rust proof performance, easy wire feed and good toughness of the welding seam.

Description

technical field [0001] The invention relates to the field of welding, in particular to a gas shielded welding wire with a nanometer coating. Background technique [0002] At present, the main method adopted by gas shielded welding wire is surface copper plating, but the disadvantage of copper plating is that the content of toxic substance copper (Cu) in welding fume is high, the welding spatter is large, and the surface of welding wire is prone to pitting corrosion. And as the strength of the material increases, the copper element transitioning to the weld may weaken the weld performance. In order to solve the above-mentioned shortcomings of traditional copper-plated welding wires, many patents have proposed gas-shielded welding wires with different coating components and surface treatment methods made of water-soluble antirust agents and oil-soluble antirust agents, but there is still a lack of gas shielded welding wires that can achieve high efficiency. , Low spatter high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/365B05D7/20
Inventor 邓键
Owner 上海斯米克焊材有限公司
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