Method for coating a mould body used in a continuous casting machine

Process for coating a Cu or Cu alloy chill mold body (1) in an extrusion process where the chill mold is coated at least partially with an inner Cr coating, where a cermet wear resistant layer is applied to the Cr coating by thermal spraying, and has a layer hardness differing by a factor of 0.6-2 f...

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Bibliographische Detailangaben
Hauptverfasser:	PIWOWAR, HANS DIRK, HEMSEIER, HANS-JUERGEN, RODE, DIRK, HUGENSCHUETT, GERHARD, WOBKER, HANS-GUENTER, HAURI, ROLAND, KOLBECK, DIETMAR
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 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 INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	Process for coating a Cu or Cu alloy chill mold body (1) in an extrusion process where the chill mold is coated at least partially with an inner Cr coating, where a cermet wear resistant layer is applied to the Cr coating by thermal spraying, and has a layer hardness differing by a factor of 0.6-2 from that of the inner layer. An independent claim is included for a Cu or Cu alloy chill mold of an extrusion unit as described above.