SOLUTION FOR PRODUCTION OF CHROMATE COAT ON ZINC (VERSIONS) Russian patent published in 2008 - IPC C23C22/24 

Abstract RU 2314364 C1

FIELD: electroplating technology; application of coat requiring subsequent cathode treatment.

SUBSTANCE: proposed solution contains the following components, g/dm3: CrO3, 8; HNO3, 12; Cr2(SO4)318H2O, 5; Na2SnO33H2O, 8. Solution contains, g/dm3: CrO3, 8; Na2SO4, 12; Cr2(SO4)18H2O, 5; In(NO3)3, 6.

EFFECT: possibility of obtaining current-conducting chromate coat on zinc at retained high protective properties after cathode treatment.

3 cl, 1 tbl, 3 ex

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RU 2 314 364 C1

Authors

Popov Oleg Grigor'Evich

Dates

2008-01-10Published

2006-10-27Filed