Active additive used for solid welding wire free of plated copper and preparation method thereof

Abstract

The invention relates to the technical field of chemical engineering, and particularly discloses an active additive used for a solid welding wire free of plated copper and a preparation method thereof. The active additive used for the solid welding wire free of the plated copper comprises, by weight, 90-93 parts of vegetable oil, 3-5 parts of cesium powder, 0.8-2 parts of tellurium powder, 2-3 parts of lithium hydrate and 0.2-0.8 part of sodium hydroxide. The active additive used for the solid welding wire free of the plated copper and the preparation method thereof have the advantages that preparation can be achieved easily, environment friendliness and safety are guaranteed, pollution, caused by copper plating liquid and acid and alkali liquid, to the environment is avoided, cost for subsequent sewage treatment is reduced, and injury of dust containing copper to a welder is also avoided; the rust-proof effect and the lubrication effect are good, an electric arc of the manufactured solid welding wire free of the plated copper can be kept stable in a welding process, splashing is reduced, arcing is easy, stability is good, the welding efficiency, the welding performance and the melting depth are improved, the melting depth is large, and a welding line is smooth and attractive.

Description

(1) Technical field [0001] The invention relates to the technical field of chemical industry, in particular to an active additive for solid welding wire without copper plating and a preparation method thereof. (2) Background technology [0002] During the wire drawing process of the wire rod, the surface of the welding wire will be slightly uneven, which increases the friction force, causes the wire drawing to be unstable, and then affects the quality of the product; in order to solve the problem of wire drawing stability, the existing technology generally adopts It is the copper plating technology of welding wire. The original purpose of solid welding wire copper plating is only to lubricate the wire drawing process, not to prevent rust, conduct electricity and reduce the wear of the wire feeding contact tip for the welding wire. These functions of the copper plating layer It was only discovered later on. [0003] It is precisely because of the existence of the copper-plat...

AI Technical Summary

Problems solved by technology

In the production process of welding wire, after the copper layer on the surface of the welding wire is squeezed by the straightening wheel during the layer winding process and rubbed with the wire feeding hose for a long time, part of the copper plating layer is peeled off from the substrate, and in the process of welding stacked wire During this process, this part of the copper plating layer will be scraped off, and a large amount of copper filings will gather in the wire feeding hose, mainly near the contact tip, causing blockage of the wire feeding hose and affecting the stability of the wire feeding. Forming has a great impact, especially in the precise welding robot automatic welding process, which requires very high copper plating quality of welding wire; in the Baosteel robot automatic welding practice, we found that: It is unavoidable that the medium melts into the weld bead, which will have a bad effect on the weld, and even make the welding work unable to proceed normally;

[0007] ② Large welding spatter and poor weld formation:

However, regardless of electroless plating or electroplating, the plating solution and its vapor are extremely harmful to the human body, and the waste acid and alkali will further pollute the environment

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