PRE-COATED STEEL PLATE FOR HOT FORMING AND PREPARATION METHOD THEREFOR, AND HOT-FORMED STEEL MEMBER AND APPLICATION THEREOF

Disclosed in the present invention are a pre-coated steel plate for hot forming and a preparation method therefor, and a hot-formed steel member and an application thereof. In the pre-coated steel plate and the preparation method therefor, when the thickness of a pre-coating is 5-19 µm, the correspo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JIN, Jiachun, WANG, Lei, LIU, Yonggang, ZHAN, Hua, CUI, Lei, DENG, Zongji, LI, Zitao, CHEN, Zhipeng, ZHOU, Shilong
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS APPARATUS THEREFOR 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 ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Disclosed in the present invention are a pre-coated steel plate for hot forming and a preparation method therefor, and a hot-formed steel member and an application thereof. In the pre-coated steel plate and the preparation method therefor, when the thickness of a pre-coating is 5-19 µm, the corresponding surface roughness of the pre-coating is set, a hot-formed coated steel member can be obtained after hot forming, and the coating on the hot-formed coated steel member has a high surface roughness of Ra≥1.80 µm; the obtained steel member has the advantages of light weight, high surface roughness and good paint adhesion and paint corrosion resistance, and a steel part made of the steel member of the present invention can be applied to a vehicle so as to lighten the weight of the vehicle.