Process of treating metallic surfaces
    73.
    发明授权
    Process of treating metallic surfaces 有权
    金属表面处理工艺

    公开(公告)号:US06436475B1

    公开(公告)日:2002-08-20

    申请号:US09308991

    申请日:1999-12-17

    IPC分类号: B05D302

    CPC分类号: C23C22/68 C23C22/48 C23C22/58

    摘要: The invention relates to a method for treating metallic surfaces consisting of zinc, magnesium or aluminium or of the alloys of zinc, magnesium or aluminium, to which lacquer, coatings of plastic material, paint, sealants or adhesives are applied after treatment. The treatment of the metallic surfaces takes place at between 10° C. and 100° C. by immersion, spraying or rolling with an aqueous solution. The solution has a pH of between 2 and 13 and contains one or more compounds of the type XYZ at a concentration of between 10−5 and 1 mol/l. Y is an organic group containing between 2 and 50 C atoms and has a straight-chain structure. X is a COOH, HSO3, HSO4, (OH)2PO, (OH)2PO2, (OH)(OR′)PO or (OH)(OR′)PO2 group. Z is a OH, SH, NH2, NHR′, CN, CH═CH2, OCN, epoxy, CH2═CR″—COO, acrylamide, COOH, (OH)2PO, (OH)2PO2, (OH)(OR′)PO or (OH)(OR′)PO2 group. R′ is an alkyl group with between 1 and 4 C atoms. R″ is an H atom or an alkyl group with between 1 and 4 C atoms. Groups X. and Z are each bonded to group Y in their final positions.

    摘要翻译: 本发明涉及一种用于处理由锌,镁或铝组成的金属表面或锌,镁或铝合金的方法,其中在处理之后,将漆,塑料材料,涂料,密封剂或粘合剂涂覆在其上。 金属表面的处理在10℃至100℃之间进行,通过浸渍,喷涂或用水溶液滚动。 溶液的pH值在2和13之间,并含有一种或多种浓度为10-5至1mol / l的XYZ型化合物。 Y是含有2至50个碳原子的有机基团并具有直链结构。 X是COOH,HSO3,HSO4,(OH)2PO,(OH)2PO2,(OH)(OR')PO或(OH)(OR')PO2基团。 Z是OH,SH,NH 2,NHR',CN,CH = CH 2,OCN,环氧基,CH 2 = CR“COO,丙烯酰胺,COOH,(OH)2 PO,(OH)2 PO2,(OH) )PO或(OH)(OR')PO 2基团。 R'是具有1至4个C原子的烷基。 R“是H原子或具有1至4个C原子的烷基。 X和Z组各自在其最终位置与基团Y键合。