Productive technology of environment-friendly type solid welding wires without copper facing

A technology of solid welding wire and production process, which is applied in the direction of metal material coating process, welding medium, manufacturing tools, etc., can solve the problems of high pre-processing and post-processing requirements for semi-finished products, difficulty in popularization and application, and high cost, etc., to achieve production Low cost, smooth surface of welding wire, and clean surface effect

Inactive Publication Date: 2012-10-10
KUNSHAN MCC BAOSTEEL WELDING CONSUMABLES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] No matter which of the above-mentioned ideas is adopted, the requirements for pre-processing and post-processing of semi-finished products are very high. According to information, Japanese manufactur...

Method used

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  • Productive technology of environment-friendly type solid welding wires without copper facing

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The production process of environmentally-friendly non-copper-plated solid welding wire includes an offline hydrochloric acid washing process of welding wire raw materials, a drawing process and a copper-free process; the copper-free process includes a phytic acid treatment step and a post-treatment step:

[0050] 1. The off-line hydrochloric acid washing process of welding wire raw material (steel): successively including pickling, water rinsing and neutralization washing steps:

[0051] Pickling-water rinsing-neutralization washing.

[0052] During the pickling, a hydrochloric acid solution with a concentration of 5-10% by weight is used to clean the surface of the welding wire raw material, and the Fe in the solution after the pickling 2+ The concentration of the welding wire is controlled to be ≤200g / L; the time to soak the raw material of the welding wire in the hydrochloric acid solution is subject to cleaning, and visual inspection is required after soaking for 15 minute...

Embodiment 2

[0083] The production process of environmentally-friendly non-copper-plated solid welding wire includes an offline hydrochloric acid washing process of welding wire raw materials, a drawing process and a copper-free process; the copper-free process includes a phytic acid treatment step and a post-treatment step:

[0084] 2. Offline hydrochloric acid washing process of welding wire raw material (steel): including pickling, water rinsing and neutralization washing steps in sequence:

[0085] Pickling-water rinsing-neutralization washing.

[0086] During the pickling, a hydrochloric acid solution with a concentration of 5% by weight was used to clean the surface of the welding wire raw material, and the Fe in the solution after the pickling 2+ The concentration of the welding wire is controlled to be ≤200g / L; the time to soak the raw material of the welding wire in the hydrochloric acid solution is subject to cleaning, and visual inspection is required after soaking for 15 minutes.

[008...

Embodiment 3

[0117] The production process of environmentally-friendly non-copper-plated solid welding wire includes an offline hydrochloric acid washing process of welding wire raw materials, a drawing process and a copper-free process; the copper-free process includes a phytic acid treatment step and a post-treatment step:

[0118] 3. Offline hydrochloric acid washing process of welding wire raw material (steel): including pickling, water rinsing and neutralization washing steps in sequence:

[0119] Pickling-water rinsing-neutralization washing.

[0120] During the pickling, a hydrochloric acid solution with a concentration of 10% by weight is used to clean the surface of the welding wire raw material, and the Fe in the pickling solution 2+ The concentration of the welding wire is controlled to be ≤200g / L; the time to soak the raw material of the welding wire in the hydrochloric acid solution is subject to cleaning, and visual inspection is required after soaking for 15 minutes.

[0121] During ...

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Abstract

The present invention relates to a productive technology of environment-friendly type solid welding wires without copper facing. The productive technology of environment-friendly type solid welding wires without copper facing includes the steps as follows: a washing process for raw materials of the solid wires off-line by using hydrochloric acid as a washing agent; a drawing process; and a no-coppering process. The no-coppering process includes a phytic acid treatment step and a post-treatment step. A phytic acid solution is used for treating during the phytic acid treatment process, and the temperature of the phytic acid solution is not less than 75 DEG C; and a kind of membrane-firming lubricating oil is coated on the surface of the aired solid welding wires during the post-treatment process. The productive technology of environment-friendly type solid welding wires without copper facing can thoroughly solve a copper pollution problem during the production and application processes of welding wires with copper facing; and has a lower production cost, less processes, less land occupation and lower cost of equipment investment and maintenance than the production technology of welding wires with copper facing. The environmental-friendly solid welding wires without copper facing has a smooth surface; the wire feeding property of the welding wires is more stable; the wire feeding problem caused by dropped copper layers and the like does not occur during the application process, the surface of the welding wire is more smooth and the wire feeding resistance is reduced; and the environmental-friendly solid welding wires without copper facing can be produced in bulk.

Description

Technical field [0001] The invention relates to the field of non-copper-plated welding wires, in particular to a production process of environmentally-friendly non-copper-plated solid welding wires. Background technique [0002] A common understanding of non-coppered welding wire in China is special coated welding wire. The coating composition and surface treatment methods of each manufacturer are different, so the final welding wire performance is different, and the excellent coating and surface are different. The treatment method can not only prevent rust and lubricate, but also stabilize the arc and reduce welding spatter. But in fact, through the analysis of foreign non-coppered welding wire, there should be an understanding, that is, through appropriate treatment to darken the surface or add other protective layers to the surface, while ensuring the smoothness of the surface to achieve the final non- Copper plating requirements. [0003] No matter what kind of thinking is ad...

Claims

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Application Information

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IPC IPC(8): C23C22/06C23C22/48C23C22/82C23G1/02B23K35/40
Inventor 贾军张显辉徐崇庆李克刚杨益清李好生易飞杨伦国
Owner KUNSHAN MCC BAOSTEEL WELDING CONSUMABLES
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