Process for phosphatising metals prior to electro-lacquering
摘要
Process for phosphatising metals, especially iron, steel and zinc using an aqueous solution containing zinc and phosphate. The novelty is that the solution contains 0.8-1.5 g./l. zinc, 5-30 g./l. phosphate and additionally 30-800 mg./l. tungstate. The agent solution is used in the above process is also claimed.
申请公布号
DE19541285(A1)
申请公布日期
1997.05.07
申请号
DE19951041285
申请日期
1995.11.06
申请人
CHEMISCHE WERKE KLUTHE GMBH, 69115 HEIDELBERG, DE
发明人
NEUKAMP, MATTHIAS, 95145 NIEDER-BEERBACH, DE;BRUEGGE, DIRK VAN, 69214 EPPELHEIM, DE
