Most fluxes are organic solutions of rosin resin. The rosin is derived from pine oily turpentine, which is obtained by distillation to remove pine oil. The solid rosin is difficult to apply to the substrate, so it is dissolved in a dilute medium, usually It is sprinkling fine. Its reaction function is relatively low and its cleaning power is limited. Therefore, some active agents should be added to increase the chemical activity at the soldering temperature.
Melting Temperature Range
Water-soluble flux is suitable for the welding of various component leads, and has good soldering performance. It is especially suitable for the welding of these hard-to-weld metals: copper, brass, phosphor bronze, constantan, beryllium bronze, Kovar, nickel, Nickel-iron alloy and other nickel-metal, iron, stainless steel, etc. As for solderable tin, tin-lead alloy, silver, gold, etc., and their oxidized leads, they can be soldered more smoothly.