MANUFACTURING OF HARDFACINGS

A method for formation of hardfacings on an article (10) comprises providing of an article to be processed. The article is exposed to impact items (20) and to tungsten carbide particles (22), either as free tungsten carbide particles or within the impact items. The impact items are solid bodies with...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Hansén, Martin, Forssbeck Nyrot, Elias, Zhmud, Boris, Sund, Mattias, Everlid, Linus
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING 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 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 MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER 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 WORKING METALLIC POWDER
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A method for formation of hardfacings on an article (10) comprises providing of an article to be processed. The article is exposed to impact items (20) and to tungsten carbide particles (22), either as free tungsten carbide particles or within the impact items. The impact items are solid bodies with an average diameter within the range of 0.1 to 10 mm. Preferably, the average diameter is within the range of 0.5 to 5 mm. A velocity (V) difference between surfaces (12) of the article and the impact items is created. This causes impacts between the impact items and the surfaces of the article, providing a burnishing action. As a result of this, tungsten carbide particles get embedded (14) into a surface of the article. At least 80% of the embedded tungsten carbide particles have sizes within the range of 0.1 - 5 µm.