SUPERFICIAL BORIDE PASTE FOR STEEL CASTINGS

The paste comprises B carbide 22-24, K tetrafluoroborate 20-23, calcined alumina 18-20, novolac 12-14 and ethyl alcohol 12-14 per cent by wt.; remainder diluent. The paste is applied in two layers, prior to casting of 0.4-0.6 per cent C steels.

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Bibliographische Detailangaben
Hauptverfasser:	NICA GHEORGHE, RO, POP GHEORGHE, RO
Format:	Patent
Sprache:	eng ; rum
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 FOUNDRY MOULDING 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 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:	The paste comprises B carbide 22-24, K tetrafluoroborate 20-23, calcined alumina 18-20, novolac 12-14 and ethyl alcohol 12-14 per cent by wt.; remainder diluent. The paste is applied in two layers, prior to casting of 0.4-0.6 per cent C steels.