Efficient scaling powder

Abstract

The invention discloses efficient scaling powder. The scaling powder comprises, by weight, 30-35 parts of modified maleated rosin, 0.2-0.3 part of epoxy octyl stearate, 0.6-1 part of succinic acid, 0.2-0.3 part of dimethylimidazole, 0.2-1 part of 2-bromine-4-methylphenol, 0.1-0.2 part of dehydrate gypsum powder, 0.7-1 part of 2-methylpropanoate, 1-2 parts of dist coconut fatty acid polyoxyethylene ether, and 70-80 parts of organic solvents. The scaling powder contains no halogen and needs no cleaning after welding, and therefore efficiency is high and cost is low. The modified maleated rosin is added into the scaling powder, viscosity is adjusted by sa-son seed gum, the surface tension of fusing scolder can be improved by lanolin dissolved by ethyl alcohol, the wetting effect can be enhanced, the generation of mycete can be avoided through dithio-salicylic acid, and oxides on the surface of the fusing scolder can further be removed through the dithio-salicylic acid. The scaling powder has the advantages of being high in welding activity, capable of easily removing scolder residues, incapable of generating toxic gas, and good in environment protection property.

Description

technical field [0001] The invention mainly relates to the field of soldering tin, in particular to a high-efficiency soldering flux. Background technique [0002] With the continuous development of electronic technology and the increasing popularity of integrated circuit applications, flux plays an increasingly important role in the electronics industry and related industries. In modern industrial production, flux is used more and more widely. Flux It is a substance with chemical and physical activation properties, which can remove oxides on the surface of the metal to be welded or other formed surface films and oxides formed on the outer surface of the solder itself, so that the surface to be welded can be stained with tin and For the purpose of soldering, the function of 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 can reduce the surface tension of molten tin, and promote t...

AI Technical Summary

Problems solved by technology

[0003] There are many types of flux, which can be roughly divided into three series: organic, inorganic and resin; resin flux is usually extracted from the secretions of trees, which is a natural product and is not corrosive. Rosin is the representative of this type of flux, so Also known as rosin-based flux; flux is usually a mixture of rosin as the main component, which is an auxiliary material to ensure the smooth progress of the welding process. To achieve the necessary cleanliness, it prevents re-oxidation of the surface during soldering, reduces the surface tension of the solder, improves soldering performance, and the performance of the flux directly affects the quality of electronic products. Traditional flux is composed of ordinary rosin, flux and Composed of organic solvents, etc., it is easy to cause problems such as low insulation resistance after welding, easy leakage risk, and environmental pollution.