Chemical Tin

HC-Sn-601 chemical tin HC-Sn-601 chemical tin for copper, brass pieces of silver white light treatment. Operating at room temperature, non-toxic and pollution-free, surface treated silver white light, elegant. The main use of objects including plates, lamps, signs, zippers, buttons, etc., can increase processing zip fastener lubrication, the fastener more convenient to use. For copper electronic products, electronic components can be improved weldability, corrosion resistance, brightness, room temperature operation, quick and easy. First, the formulation and preparation of this product as the working fluid can be used directly, but also add 0.5 to 1 times the water use. Processing temperature 10 ~ 35 ℃. Time 2-5 minutes if precipitation is normal liquid, stir, when used, can be used. Second, the process degreasing - pickling (5-10% sulfuric acid) - Chemical polishing (HH-T) - Chemical Tin (HC-Sn-601) - against discoloration (HH-Sn-691) - Packaging Third, pay attention 1, the chemical tinning process, the time is 2-5 minutes, the solution does not need to adjust the composition, after treatment of the workpiece yellowed if that additional work was 10%. 2. For thicker copper oxide film, you should use HH943 copper silver polishes polishing, then oil, oil to clean chemical tin, without pickling process. High requirements for the appearance of the product, can be pickled by chemical polishing (For details, see HH-T User's Manual. 3, the solution from light, long-term storage should be stamped with the seal. 4, as part of this process, After pre-treatment degreasing scale should be clean, can not overlap flap, otherwise affect the quality of the tin coating.