Traffic control circuit welding welding-assisting material and preparing method thereof

Abstract

The invention discloses a traffic control circuit welding welding-assisting material and a preparing method of the welding-assisting material and relates to the technical field of welding. The traffic control circuit welding welding-assisting material comprises, by weight, 20-30 parts of ethyl alcohol, 3-5 parts of methyl alcohol, 1-3 parts of diethylene glycol monoethyl ether, 1-2 parts of o-hydroxybenzoic acid, 2-5 parts of wax, 1-2 parts of emulgator, 50-60 parts of deionized water and 5-8 parts of colophony. The traffic control circuit welding welding-assisting material can be used for obviously improving the high-low temperature resisting feature and the welding strength of a welded finished product and meanwhile, can protect the health of an operating worker and the atmosphere environment.

Description

technical field [0001] The invention relates to the technical field of electric welding, in particular to a welding flux material used for welding. Background technique [0002] With the large-scale application of modern traffic control products in society, the performance of control circuits of traffic control products has been paid more and more attention by the society, and the problem of electronic circuit welding of traffic control products has become one of the problems to be solved and improved. . [0003] Traffic control products are generally used outdoors in harsh environments. In addition to the welding and flux materials of ordinary electronic products, these products must also be resistant to high and low temperature changes in a wide range of natural environments, aging resistance, vibration resistance and high reliability. . In the process of melting and welding electronic components of traffic control products, soldering materials must be used to remove oxi...

AI Technical Summary

Problems solved by technology

[0004] In the existing production and processing process of molten soldering of electronic products, rosin resin-based fluxes composed of rosin, petroleum resins, halide-containing active agents, additives and organic solvents are basically used. Although this type of flux material is easy to use , the price is low, but the oxidation resistance of the flux material to the solder material and solder is poor

Since the above materials will produce a large amount of organic volatiles when heated, it will not only affect the health of the operators during the welding process, but also cause pollution to the atmospheric environment.

In addition, after using this type of flux material to solder electronic products, electronic components and solder tend to have oxidized residues. These oxidized residues contain high halogen ions and sodium ions. Electronic products soldered with these flux materials , when used in a natural environment with alternating high and low temperatures and in an environment with mechanical vibration, it will gradually cause resistance between electronic components, soldering materials, and printed circuit boards, resulting in a decrease in welding strength, or even desoldering, etc. Serious problems affecting quality

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