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锡镀簿钢板极广泛用于制作食品罐头及其它轻便耐腐蚀的容器。在镀锡过程中,最后一道工序要对表面进行铬酸盐钝化处理。所形成的钝化膜是决定镀锡板的耐腐性、抗氧化性、抗硫化性、印涂性、锡焊等表面性能的重要因素之一。镀锡板的钝化膜是厚度约20A的含铬表面膜。表面含铬量一般在0.1—1.0μg/cm~2范围之内,并随着钝化处理工艺而异。在镀锡板的生产使用中,为了适应多种性能的要求,相应的控
Tin plated steel plate is very widely used in the production of food cans and other lightweight corrosion-resistant containers. In the tin plating process, the last process to chromate the surface of the passivation treatment. The formed passivation film is one of the important factors that determine the corrosion resistance, oxidation resistance, anti-vulcanization, printing, soldering and other surface properties of tinplate. The passivation film of tinplate is a chromium-containing surface film of about 20 A in thickness. Chromium content of the surface is generally in the range of 0.1-1.0μg / cm ~ 2, and with the passivation process varies. Tinplate production and use, in order to meet the requirements of a variety of performance, the corresponding control