C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/53 (2006.01) C23C 2/06 (2006.01)
Patent
CA 2696567
A zinc-based metal plated steel sheet excellent in tribological properties during press forming is provided. An oxide layer containing crystalline 3Zn(OH)2.cndot.ZnSO4.cndot.xH2O is formed on a plated surface. The oxide layer has a thickness of 10 nm or more. The crystalline oxide layer is composed of 3Zn(OH)2.cndot.ZnSO4.cndot.3-5H2O.
L'invention concerne une tôle d'acier galvanisé présentant d'excellentes propriétés de glissement pendant le moulage par compression. Une couche d'oxyde contenant un 3Zn(OH)2.ZnSO4.xH2O cristallin est formée sur la surface d'électrogalvanisation, ladite couche présentant une épaisseur non inférieure à 10 nm. La couche d'oxyde cristalline est composée en particulier de 3Zn(OH)2.ZnSO4.3-5H2O.
Fujimoto Kyoko
Fujita Sakae
Hoshino Katsuya
Kajiyama Hiroshi
Makimizu Yoichi
Jfe Steel Corporation
Moffat & Co.
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