The result is the successful development of "HAS" (alkanosulfonic acid) domestic raw materials, and the preparation of tin-aluminum alloy plating solution with HAS raw materials, which was successfully used in the electroplating process. The use of HAS as a raw material instead of the highly toxic fluoroborate is hygienic and safe, is conducive to the treatment of three wastes and environmental protection, the plating solution is stable and has excellent dispersing ability and covering material ability, and the process is simple and easy to control. The coating has good surface appearance and good solderability in accordance with the national standard (GB242.28-82).
Special treatment agents have been developed to ensure the regeneration of the bath. The tin-lead ratio in the plating solution is adjusted to a large extent for easy control. The appraisal experts believe that the results are at the leading level in China.
Special treatment agents have been developed to ensure the regeneration of the bath. The tin-lead ratio in the plating solution is adjusted to a large extent for easy control. The appraisal experts believe that the results are at the leading level in China.
Needle Valve,High Pressure Needle Valve,Stainless Steel Needle Valve
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