What are the commonly used fluxes?
To help dry flux, rosin rosin alcohol. 15 grams of 70 grams of bromide anhydrous alcohol salicylic acid 15 grams...Neutral flux, Vaseline 100 grams, triethanolamine 10 grams, anhydrous alcohol 40 grams. Water 10 grams of acid...Acid is not suitable for welding circuit boards, this can be usedThe most commonly used are rosin, solder paste,
Flux is divided into smelting flux and non smelting flux. Non smelting flux is divided into bonded flux and sintered flux. Our country is mainly smelting flux, and the most used in smelting flux is HJ431.
The most used is rosinThe flux function: rosin resin and surfactant flux in the production of chemical reaction at a certain temperature, can remove the welding metal surface oxidation film, and rosin purpose and can protect the surface of metal shed no longer oxidation at high temperatures. Flux can reduce the surface tension of molten solder, and it is beneficial to wetting and diffusion of solder
