公开(公告)号：DE3235141A1

公开(公告)日：1983-04-07

申请号：DE3235141

申请日：1982-09-23

Applicant: BASF AG

Inventor： APPL MAX DIPL CHEM DR ,  VOELKL ERFRIED DIPL CHEM DR ,  GIESLER ERICH DIPL CHEM DR

IPC: C23C2/30 ,  C23C1/12

Abstract: In the wet galvanising of wet articles essentially consisting of iron and whose surface is still contaminated with hydrochloric acid and possibly iron chloride from the pretreatment, the zinc melt is covered with a top flux of molten zinc chloride and alkali metal chloride. The covering is regenerated by adding fluxes which contain ammonium chloride, potassium chloride and, if required, zinc chloride. By adding the regenerating flux, a weight ratio of zinc chloride to alkali metal chloride of 1.5 : 1 to 4 : 1 and a content of oxidic zinc compounds of 10 to 40% by weight, calculated as zinc oxide, are maintained in the top flux.

公开(公告)号：DE2852756A1

公开(公告)日：1980-06-12

申请号：DE2852756

申请日：1978-12-06

Applicant: BASF AG

Inventor： APPL MAX DIPL CHEM DR ,  VOELKL ERFRIED DIPL CHEM DR ,  GIESLER ERICH DIPL CHEM DR

IPC: C23C2/30 ,  C23C1/12

公开(公告)号：DE3115197A1

公开(公告)日：1982-11-11

申请号：DE3115197

申请日：1981-04-15

Applicant: BASF AG

Inventor： APPL MAX DIPL CHEM DR ,  VOELKL ERFRIED DIPL CHEM DR ,  GIESLER ERICH DIPL CHEM DR

IPC: C23C2/30 ,  C23C1/12

Abstract: Low-fuming, free-flowing fluxes for sherardising contain from 50 to 90% by weight of alkali metal chlorides and from 10 to 50% by weight of ammonium chloride. In addition they contain, based on the ammonium chloride and alkali metal chloride content, from 0.1 to 1% by weight of magnesium oxide and so much zinc chloride, that the weight ratio of magnesium oxide to zinc chloride is from 1 : 2 to 1 : 10.

公开(公告)号：DE2317600A1

公开(公告)日：1974-10-24

申请号：DE2317600

申请日：1973-04-07

Applicant: BASF AG

Inventor： VOELKL ERFRIED DIPL CHEM DR ,  GIESLER ERICH DIPL CHEM DR ,  OPP KARL DIPL CHEM DR

IPC: C23C2/06 ,  C23C2/30 ,  C23C1/02