HOT PRESS STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

To provide a hot press steel sheet capable of preventing or minimizing cracks from occurring in a plated layer during hot press molding, and a method for manufacturing the same.SOLUTION: A hot pressing steel sheet 10 includes a base steel plate 100 and a plated layer 200 positioned on the base steel...

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Bibliographische Detailangaben
Hauptverfasser:	KIM SEUNG MIN, CHOI HYE RIM
Format:	Patent
Sprache:	eng ; jpn
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 GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS 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:	To provide a hot press steel sheet capable of preventing or minimizing cracks from occurring in a plated layer during hot press molding, and a method for manufacturing the same.SOLUTION: A hot pressing steel sheet 10 includes a base steel plate 100 and a plated layer 200 positioned on the base steel plate and including a diffusion layer 210 and surface layer 220 successively laminated. The diffusion layer successively positioned on the base steel plate includes an Fe-Al alloyed layer 212 and Fe-Al intermetallic compound layer 214 including silicon therein, and the area fraction of the Fe-Al intermetallic compound layer to the diffusion layer is 84.5% or 98.0%.SELECTED DRAWING: Figure 1 【課題】熱間プレス成形時、メッキ層にクラックが生じることを、防止したり最小化させたりすることができる熱間プレス用鋼板及びその製造方法を提供する。【解決手段】ベース鋼板１００と、該ベース鋼板上に位置し、順次に積層された拡散層２１０と表面層２２０とを具備したメッキ層２００と、を含み、該拡散層は、該ベース鋼板上に順次に位置し、それぞれシリコンを含むＦｅ－Ａｌ合金化層２１２及びＦｅ－Ａｌ金属間化合物層２１４を含み、拡散層に対するＦｅ－Ａｌ金属間化合物層の面積分率が８４．５％ないし９８．０％である熱間プレス用鋼板１０を開示する。【選択図】図１