ZN-AL-MG PLATED CHECKERED STEEL PLATE

Provided is a Zn-Al-Mg alloy coated checkered steel sheet having on the sheet surface thereof convex part and flat part, wherein: the coating layer has a predetermined chemical composition, and when observing a cross section of cutting edge orthogonal to a longitudinal direction of the convex part a...

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Bibliographische Detailangaben
Hauptverfasser:	SAITO, Mamoru, GOTO, Yasuto
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY PERFORMING OPERATIONS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Provided is a Zn-Al-Mg alloy coated checkered steel sheet having on the sheet surface thereof convex part and flat part, wherein: the coating layer has a predetermined chemical composition, and when observing a cross section of cutting edge orthogonal to a longitudinal direction of the convex part and taken along a sheet thickness direction at a central part in the longitudinal direction of the convex part, a layer thickness ratio of the coating layer of the flat part on left and right of the convex part (layer thickness of left coating layer/layer thickness of right coating layer) is from 0.2 to 5.0, and a convex height T-t, where T is a sheet thickness of the substrate checkered steel sheet at the convex part and t is a sheet thickness of the substrate checkered steel sheet at the flat part, and a gap height x between a stationary surface and a sheet surface of the coated checkered steel sheet opposite to the stationary surface in a case in which the coated checkered steel sheet is placed in a stationary position satisfy the following Formulas 1 and 2 below. x/T−t≤1.50.5