High-activity rosin soldering flux

Abstract

The invention discloses high-activity rosin soldering flux. The high-activity rosin soldering flux is prepared from the following raw materials in parts by weight: 20-30 parts of rosin, 10-15 parts of phenolic resin, 5-10 parts of lactic acid, 5-10 parts of salicylic acid, 2-5 parts of citric acid, 2-3 parts of malonic acid, 10-15 parts of stearic acid, 5-10 parts of octaphenyl polyoxyethyiene, 2-5 parts of lauryl sodium sulfate, 0.5-1 part of aniline hydrochloride, 0.5-1.5 parts of zinc chloride, 1-1.5 parts of tin chloride, 0.2-0.5 part of aluminum chloride, 0.5-1 part of catechol, 1-3 parts of mercaptobenzothiazole, 5-10 parts of water, 2-5 parts of alcohol and 3-4 parts of acetone. The high-activity rosin soldering flux disclosed by the invention is not only environment-friendly in a using process, but also capable of improving the welding effect to the greatest extent.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular to a high-activity rosin flux. Background technique [0002] In modern industrial production, flux is used more and more widely. Flux is a substance with chemical and physical activation properties, which can remove oxides or other formed surface films on the surface of the welded metal and the outer surface of the solder itself. The oxides formed on the surface can be soldered to achieve the purpose of being soldered and soldered firmly. The function of the flux can also protect the metal surface so that it will not be re-oxidized in the high-temperature environment of welding, and at the same time it can reduce the amount of molten tin. surface tension, and promote the dispersion and flow of solder, etc. [0003] The soldering flux in the prior art is unsafe and inconvenient to use during the actual soldering process. Especially when welding the place where manganese c...

AI Technical Summary

Problems solved by technology

[0003] The flux in the prior art is not safe and inconvenient to use during the actual soldering process

Especially when welding the place where manganese copper is used on the lamp socket and other electrical appliances, it is difficult for the above two fluxes to achieve the above effect due to the need to ensure that the weld joint is firm, free from corrosion and good electrical insulation performance. There are also some new fluxes put into the market, but the cost is high, and most of them contain carcinogenic triphenyl compounds, which are easy to volatilize under high temperature environment, endangering the health of operators, and need to be improved urgently