A kind of traffic control circuit soldering flux material and preparation method thereof

Abstract

The invention discloses a traffic control circuit welding flux material and a preparation method thereof, which are used in the technical field of welding. The traffic control circuit soldering flux material includes the following components in parts by weight: 20-30 parts of ethanol, 3-5 parts of methanol, 1-3 parts of diethylene glycol ether, 1-2 parts of o-hydroxybenzoic acid, paraffin wax 2~5 parts, 1~2 parts of emulsifier, 50~60 parts of deionized water, 5~8 parts of rosin. The traffic control circuit welding flux material prepared by the invention can significantly improve the high and low temperature resistance and welding strength of welding products, and also protect the health of operating workers and the atmospheric 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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