发明名称 |
Process for phosphating metals |
摘要 |
The quality of coatings in a low zinc phosphating process is improved by including an activator of formate, nitrilotriacetate, trichloroacetate or ethylenediamenetetraacetate to produce more uniform coatings particularly desirable in advance of electrocoating.
|
申请公布号 |
US4637838(A) |
申请公布日期 |
1987.01.20 |
申请号 |
US19850708463 |
申请日期 |
1985.03.05 |
申请人 |
METALLGESELLSCHAFT, A.G. |
发明人 |
RAUSCH, WERNER;MUELLER, GERHARD |
分类号 |
C23C22/17;C23C22/23;C23C22/36;(IPC1-7):C23F7/10 |
主分类号 |
C23C22/17 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|