Hot dip zinc plated steel sheet and method for production...

C - Chemistry – Metallurgy – 23 – C

Patent

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C23C 2/02 (2006.01) C23C 2/06 (2006.01)

Patent

CA 2582762

A hot dip zinc plated steel sheet which comprises a steel sheet containing 0.1 to 3.0 mass % of Si, a hot dip zinc plating layer, and, formed between said steel sheet and said hot dip zinc plating layer, a layer enriched in at least one component of selected from the group consisting of S, C, Cl, Na, K, B, P, F and N which contains an oxide containing Si and has a thickness of 0.01 to 100 µm. Said hot dip zinc plated steel sheet is free from the non-plating phenomenon, exhibits fine surface appearance and is excellent in the adhesion of a plating layer and sliding characteristics, although it uses a base steel sheet having a relatively great Si content. Further, an alloyed hot dip zinc plated steel sheet produced by alloying said hot dip zinc plated steel sheet is excellent also in the resistance to powdering.

L~invention concerne une feuille d~acier zinguée à chaud comprenant une feuille d~acier contenant de 0,1 à 3,0 % en masse de Si, une couche de zingage à chaud, et, formée entre ladite feuille d~acier et ladite couche de zingage à chaud, une couche enrichie en au moins un composant sélectionné parmi le groupe consistant en S, C, Cl, Na, K, B, P, F et N englobant un oxyde contenant du Si et d~une épaisseur de 0,01 à 100 µm. Ladite feuille d~acier zinguée à chaud est exempte du phénomène de non-placage, présente un fin aspect superficiel, une excellente adhérence d~une couche de placage et d~excellentes caractéristiques de glissement, même si elle utilise une feuille d~acier de base d~une teneur relativement importante en Si. De plus, une feuille d~acier alliée zinguée à chaud produite par alliage de ladite feuille d~acier zinguée à chaud est également excellente en matière de résistance au poudrage.

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