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Copper-plating-free CO2 gas shielded welding wire coating and coated welding wire adopting same

A gas-shielded welding wire, copper-free technology, applied in the direction of welding medium, welding equipment, welding equipment, etc., can solve the problems of different, affecting the performance of welding wire, etc., to improve adhesion, solve the problem of coating peeling off and blocking the contact tip, The effect of low coating peeling rate

Inactive Publication Date: 2020-04-07
河北鑫宇焊业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a common understanding of copper-free welding wire in China is special coated welding wire, but the composition and surface treatment of each manufacturer's coating are different, which affects the final performance of the welding wire.

Method used

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  • Copper-plating-free CO2 gas shielded welding wire coating and coated welding wire adopting same
  • Copper-plating-free CO2 gas shielded welding wire coating and coated welding wire adopting same
  • Copper-plating-free CO2 gas shielded welding wire coating and coated welding wire adopting same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] According to the mass ratio, with 80% palm oil as the coating carrier, add 5% lithium carbonate, 5% sodium carbonate, 5% calcium carbonate, 5% cesium carbonate respectively and stir to form a coating liquid, Dip the pretreated wire matrix into it and stay for 3s.

Embodiment 2

[0034] According to the mass ratio, take 85% palm oil as the coating carrier, add 2% lithium carbonate, 4% sodium carbonate, 7% calcium carbonate, 2% cesium carbonate respectively and stir to form a coating liquid, Dip the pretreated wire matrix into it and stay for 2s.

Embodiment 3

[0036] According to the mass ratio, 70% palm oil is used as the coating carrier, and 2% lithium carbonate, 4% sodium carbonate, 7% calcium carbonate, 2% cesium carbonate and 5% sodium chloride are respectively added therein. 10% oxidized calcium wax and stirred evenly to form a coating liquid, the pretreated wire substrate was subjected to wire surface coating treatment at 80°C, and the wire was immersed in it and stayed for 3s.

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Abstract

The invention belongs to the technical field of welding wire coatings and relates to a copper-plating-free CO2 gas shielded welding wire coating and a coated welding wire adopting the same. Accordingto the technical schemes of the invention, the surface coating comprises non-copper ion carbonic acid compound powder and an oily dissolving agent; the non-copper ion carbonic acid compound powder atleast comprises one or more components selected from lithium carbonate, sodium carbonate, calcium carbonate and cesium carbonate; the mass ratio of the non-copper ion carbonic acid compound powder isnot less than 10%. The coating uniformly coats the surface of the welding wire, with the application amount of the coating ranging from 0.1 to 0.3 g / m <2>, and therefore, the novel coated welding wireis obtained. The copper-plating-free CO2 gas shielded welding wire coating and the coated welding wire adopting the same of the invention can assist in obviously stabilizing electric arcs, reducing welding spatter and obviously improving welding efficiency, and are stable in performance and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of welding wire coating, and in particular relates to a copper-free CO 2 Gas shielded welding wire coating and its coated welding wire. Background technique [0002] CO 2 Gas shielded welding is a high-efficiency welding technology first invented and promoted in Europe in the 1950s. Due to its high production efficiency, low welding cost, low energy consumption, good weld quality, strong rust resistance, and wide application range Wide and no need to clean slag after welding and other advantages, it has been widely used at home and abroad. [0003] Traditional CO 2 Gas-shielded welding wires are all copper-plated. Copper-plated wires need to be electroplated or electroless copper-plated during the production process. The copper-plating process will generate a large amount of harmful wastewater, which seriously pollutes the environment and does not meet environmental protection requirements; secondly, due ...

Claims

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Application Information

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IPC IPC(8): B23K35/12B23K35/365B23K9/16
CPCB23K9/16B23K35/0261B23K35/365
Inventor 金秋生
Owner 河北鑫宇焊业有限公司
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