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    • 6. 发明公开
    • 내식성이 우수한 화성처리 강판
    • 化学腐蚀性优良的化学处理钢板
    • KR1020020035749A
    • 2002-05-15
    • KR1020010068500
    • 2001-11-05
    • 닛신 세이코 가부시키가이샤
    • 야마모토마사야아사부키미츠오모리카와시게야스후루카와신야다케츠히로후미
    • C23C22/07
    • C23C22/44C23C22/364C23C22/368Y10T428/12611Y10T428/12618Y10T428/12743Y10T428/12757Y10T428/12951
    • PURPOSE: A chemically processed steel sheet remarkably improved in corrosion resistance by generating a converted layer, which contains both soluble and scarcely-soluble metal compounds, with a self-repairing faculty on an Al-Si alloy plating layer formed on a steel base is provided. CONSTITUTION: The chemically processed steel sheet comprises a steel base coated with an Al-Si alloy plating layer, and a converted layer, which contains both of at least one scarcely-soluble compound and at least one soluble manganese or titanium compound, generated on a surface of the plating layer, wherein the Al-Si alloy plating layer has Si content adjusted to 5-13 mass % Si as a whole and to 7-80 mass % at its surface, wherein the Al-Si alloy plating layer has the rugged surface that Si-rich particles are distributed as convex parts thereon, wherein the scarcely-soluble compound is titanium oxide, hydroxide or phosphate, and the soluble compound is manganese oxide, hydroxide or fluoride, the converted layer is composed of an oxide, hydroxide or phosphate of a valve metal as the scarcely-soluble compound and a fluoride of a valve metal as the soluble compound, wherein the valve metal is selected from Ti, Zr, Hf, V, Nb, Ta, Mo and W, the converted layer contains the oxide or hydroxide and the fluoride at an F/O atomic ratio not less than {fraction (1/100)}, the converted layer further contains one or more of soluble or insoluble metal phosphates and complex phosphates, and the converted layer further contains at least a lubricant.
    • 目的:通过在钢基上形成的Al-Si合金镀层上生成含有可溶性和几乎不溶的金属化合物的转化层与自修复材料,显着提高耐腐蚀性的化学处理钢板, 。 构成:化学处理钢板包括涂有Al-Si合金镀层的钢基体和转化层,其中含有至少一种难溶的化合物和至少一种可溶的锰或钛化合物,其在 其中Al-Si合金镀层的Si含量整体调整为5-13质量%Si,表面为7-80质量%,其中Al-Si合金镀层具有坚固的 富Si颗粒作为凸部分布的表面,其中不易溶解的化合物是氧化钛,氢氧化物或磷酸盐,可溶性化合物是氧化锰,氢氧化物或氟化物,转化层由氧化物,氢氧化物或氟化物组成 作为可溶性化合物的阀金属的磷酸盐和作为可溶性化合物的阀金属的氟化物,其中所述阀金属选自Ti,Zr,Hf,V,Nb,Ta,Mo和W,所述转化层含有 氧化物或羟基 ide和F / O原子比不小于{分数(1/100)}的氟化物),转化层还含有一种或多种可溶性或不溶性金属磷酸盐和复合磷酸盐,转化层还含有至少一种 润滑剂。