JPH05237509

PURPOSE:To manufacture hot rolled steel material free from surface flaws by regenerating scrap having high contents of Cu, Sn in an automobile, an electric appliance, etc. CONSTITUTION:Method for preventing surface flaws of hot rolled sheet material which is hot rolled providing a film having 0.2-3....

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Bibliographische Detailangaben
Hauptverfasser:	OSHIMI SHOICHI, WAKAO MASAMITSU, TOKUMITSU NAOKI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS ARTIFICIAL STONE CEMENTS CERAMICS 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 COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIME, MAGNESIA MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PUNCHING METAL REFRACTORIES ROLLING OF METAL SLAG SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PURPOSE:To manufacture hot rolled steel material free from surface flaws by regenerating scrap having high contents of Cu, Sn in an automobile, an electric appliance, etc. CONSTITUTION:Method for preventing surface flaws of hot rolled sheet material which is hot rolled providing a film having 0.2-3.0mm thickness by the coating agent which contains 50wt.% of MgO, CaO, Al2O3 singly or mixedly in a billet containing Cu>=0.3%, Sn>=0.01%, Ni