Usually a mixture of rosin flux flux Which is the main component of affordable, set the appropriate spray width. Auxiliary ensure smooth conduct of the welding process data. Welding is the main electronics assembly process, flux is used for soldering materials, the main role is to remove solder flux and solder flux is an oxide of the base metal surface, so that the metal surface to achieve the necessary cleanliness. When the rosin monomer, the actual use of discovery. Chemical activity is weak, to promote solder wetting is often not abundant, so you need to add a small amount of the active agent industrial flux to increase its activity. Rosin flux according to the strength of the flux or without adding the active agent and the preferred chemically active, is divided into a non-activated rosin, four kinds of weakly activated rosin, activated rosin and active rosin ultra US MIL specifications are referred to as R, RMA, RA, RSA, and Japanese JIS specification is divided according to the chlorine content of the flux of AA (0.1wt% or less) A (0.1 ~ 0.5wt%) B (0.5 ~ 1.0wt %) three ratings. Flux price, Fu Jie solder (certified), Fujian flux provided by the Zhengzhou City, Fu Jie solder materials Limited. Zhengzhou City, Fu Jie Solder Materials Co., Ltd. (www.fujiehanxi.com) is a leader in Zhengzhou, non-ferrous alloys, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In FUJIE solder leadership with the staff warmly welcome all inquiries negotiations to create FUJIE solder a better future.