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据1988,(6):44—47报道,在马格尼托哥尔斯克钢铁公司,经过5机架轧钢机轧制后,表面油污达600～1200mg/m~2的冷轧带钢在电解脱脂机组上进行净化。在保护气氛中退火时,未除去的油污会转化为铁碳化合物,它们在平整时转入带钢表面上的细微坑里,在镀锡前用脱脂和酸侵蚀的方法都不能消除,甚至少量的残余油污也会恶化锡层的结合力和镀锡板的耐蚀性能,会提高镀层的孔隙率。此外,在电镀锡
According to 1988, (6): 44-47 reported in the Magnitogorsk Iron and Steel Company, after 5-stand rolling mill, the surface oil of 600 ~ 1200mg / m ~ 2 cold-rolled strip in the electrolysis Degreasing unit for purification. Unleased oil will be converted to iron-carbon compounds when annealed in a protective atmosphere. When they are leveled, they are transferred into the pits on the surface of the strip and can not be eliminated by degreasing and acid attack prior to tinning. Even small amounts The residual oil will also worsen the binding of tin layer and tin plate corrosion resistance, will increase the porosity of the coating. In addition, tin plating