CHEMICAL FILM FINISHING AGENT AND METHOD FOR PRODUCING SAME
    7.
    发明公开
    CHEMICAL FILM FINISHING AGENT AND METHOD FOR PRODUCING SAME 审中-公开
    MITTEL ZUR APPRETUR EINES CHEMISCHEN FILMS UND VERFAHREN ZU SEINER HERSTELLUNG

    公开(公告)号:EP2617865A1

    公开(公告)日:2013-07-24

    申请号:EP11824925.9

    申请日:2011-08-11

    摘要: The following two means are provided for a finishing agent for a chemical conversion coating wherein the finishing agent is capable of forming a finishing coating having an excellent corrosion resistance and excellent appearance as well as being suppressed in the elution of trivalent chromium: (A) the ratio of the chromium equivalent molar concentration of a water-soluble trivalent chromium-containing substance contained in the finishing agent relative to the phosphorus equivalent molar concentration of a water-soluble phosphoric acid-based compound contained in the finishing agent is 0.5 or more; and (B) a water-soluble aluminum-containing substance and/or a water-soluble zirconium-containing substance are contained in the finishing agent such that the ratio of the total of the chromium equivalent molar concentration of the water-soluble trivalent chromium-containing substance, the aluminum equivalent molar concentration of the water-soluble aluminum-containing substance, and the zirconium equivalent molar concentration of the water-soluble zirconium-containing substance relative to the phosphorus equivalent molar concentration of the water-soluble phosphoric acid-based compound is 0.5 or more.

    摘要翻译: 提供了用于化学转化涂层的整理剂的以下两种方法,其中整理剂能够形成具有优异的耐腐蚀性和优异外观的精整涂层,并且抑制三价铬的洗脱:(A) 包含在整理剂中的水溶性三价含铬物质的铬当量摩尔浓度相对于整理剂中含有的水溶性磷酸类化合物的磷当量摩尔浓度的比例为0.5以上; 和(B)在整理剂中含有水溶性含铝物质和/或水溶性含锆物质,使得水溶性三价铬化合物的铬当量摩尔浓度的总和, 含水物质,水溶性含铝物质的铝当量摩尔浓度和水溶性含锆物质的锆当量摩尔浓度相对于水溶性磷酸系化合物的磷当量摩尔浓度 为0.5以上。

    PROCESS FOR PRODUCTION OF TIN-PLATED STEEL SHEETS, TIN-PLATED STEEL SHEETS AND CHEMICAL CONVERSION TREATMENT FLUID
    10.
    发明公开
    PROCESS FOR PRODUCTION OF TIN-PLATED STEEL SHEETS, TIN-PLATED STEEL SHEETS AND CHEMICAL CONVERSION TREATMENT FLUID 审中-公开
    用于生产电镀钢板,镀锡钢板和流体化学转化处理

    公开(公告)号:EP2290129A1

    公开(公告)日:2011-03-02

    申请号:EP09746686.6

    申请日:2009-05-11

    摘要: A chemical conversion solution contains greater than 18 to 200 g/L or less of aluminum phosphate monobasic and has a pH of 1.5 to 2.4. A method for producing a tinned steel sheet includes forming an Sn-containing plating layer on at least one surface of a steel sheet such that the mass per unit area of Sn is 0.05 to 20 g/m 2 , immersing the steel sheet in the chemical conversion solution or cathodically electrolyzing the steel sheet at a current density of 10 A/dm 2 or less in the chemical conversion solution; and drying the steel sheet to form a chemical conversion coating. Since the method uses the chemical conversion solution, the following sheet can be produced: a tinned steel sheet that is capable of preventing the deterioration of appearance and the reduction of paint adhesion due to the surface oxidation of a tin plating layer without using Cr, which causes environmental problems, and that can be subjected to chemical conversion at low cost.

    摘要翻译: 甲化学转化处理液含有大于18至200g / L或更小的磷酸二氢铝的并且pH为1.5〜2.4。 一种用于制造镀锡钢板的制造方法包括:形成含有Sn的镀层的钢板检查中的至少一个表面上做每个Sn的单位面积的质量为0:05至20g / m 2时,在化学浸渍钢板 转化溶液或阴极在10A / dm 2的或更小的化学转化处理液的电流密度电解钢板; 并干燥该钢板,以形成化学转化处理被膜。 由于该方法使用了化学转化处理液,可以制备以下表:镀锡钢板确实能够防止外观的劣化和涂料密合性的降低由于镀锡层的表面氧化的不使用Cr,哪 引起的环境问题,并没有可以低成本地进行化学转化。