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公开(公告)号:US4247344A
公开(公告)日:1981-01-27
申请号:US45659
申请日:1979-06-05
摘要: A rust preventing treatment for a metal-plated steel product which comprises treating the metal-plated steel product with an aqueous solution containing 0.01% to 10% by weight of tannic acid on the basis of the aqueous solution and 0.001% to 10% by weight of a water-soluble or water-dispersible polymer which is stable when mixed with the tannic acid to form a corrosion resistant film on the surface of the metal-plated steel product.
摘要翻译: 一种金属镀覆钢产品的防锈处理方法,其特征在于,所述金属镀覆钢产品是以含有0.01%-10%(重量)单宁酸的水溶液和0.001%-10%(重量) 的水溶性或水分散性聚合物,当与单宁酸混合时,其在金属镀覆的钢产品的表面上形成耐腐蚀膜。