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由交通部公路科学研究所和云南省交通科学研究所联合研制的BK-1型三价铬刷镀,经过4年800余次试验,终于研制成功,并通过了交通部科技司的技术鉴定. 鉴定会认为:BK-1型三价铬刷镀层的硬度高达HRC65,单一镀层厚度为60μm,镀层光亮如同镜面,性能指标超过国内外已知同类型刷镀,达到国际先进水平.镀液每
The BK-1 type trivalent chromium plating brush developed by the Highway Science Research Institute under the Ministry of Communications and the Yunnan Institute of Transportation Science has finally been successfully developed and passed the technical appraisal of the Ministry of Communications Science and Technology Division. Identification will think: BK-1 trivalent chromium brush hardness of up to HRC65, a single coating thickness of 60μm, bright coating as a mirror, the performance indicators than the same type of domestic and international known brush plating, reached the international advanced level.