公开(公告)号：US6068709A

公开(公告)日：2000-05-30

申请号：US921877

申请日：1997-09-02

申请人： Joseph Schapira ,  Patrick Droniou ,  Michel Sudour ,  Michele Guimon ,  Daniel Bernard

发明人： Joseph Schapira ,  Patrick Droniou ,  Michel Sudour ,  Michele Guimon ,  Daniel Bernard

IPC分类号： C23C22/10 ,  C23C22/12 ,  C23C22/07

CPC分类号： C23C22/12 ,  C23C22/10

摘要： The invention relates to a process for the phosphatization of metallic substrates comprising the use of a phosphatization bath having a pH from 1 to 5.5 and which comprises from about 0.3 to about 25 g/l of zinc ion, preferably from 0.5 to 10 g/l, from 5 to about 50 g/l of phosphate ion, preferably from 8 to 30 g/l, and from about 0.01 to about 10 g/l, preferably from 0.03 to 3 g/l of a trivalent cobalt complex.

摘要翻译： 本发明涉及金属底物的磷酸化方法，其包括使用pH为1至5.5的磷酸盐浴，其包含约0.3至约25g / l的锌离子，优选为0.5至10g / l ，5至约50g / l磷酸根离子，优选8至30g / l，和约0.01至约10g / l，优选0.03至3g / l的三价钴络合物。