Abrasive tool making process – material – or composition – With inorganic material – Metal or metal oxide
Patent
1991-10-01
1993-04-13
Bell, Mark L.
Abrasive tool making process, material, or composition
With inorganic material
Metal or metal oxide
51293, 51298, B24D 302
Patent
active
052019179
ABSTRACT:
The present invention relates to the manufacture of abrasion-proof plates. The abrasion-proof surface of the plate is composed of external face 5 of a layer of composite material based on spherical grains of melted tungsten carbide bonded in a soldering alloy. Grinding surface 5 has a smooth and even mould finish. The abrasion-proof layer contains a compact, regular and essentially uniform random distribution of tungsten carbide grains. Surface 5 is made by moulding: the tungsten carbide grains are inserted between the mould walls and core 2 of the part, and the soldering alloy is made to infiltrate between the powder grains, core 2 and the mould by increasing the temperature. The invention allows a significant increase in the abrasion resistance of grinding plates.
REFERENCES:
patent: 4423845 (1984-01-01), Frazier et al.
patent: 4425141 (1984-01-01), Buljan et al.
patent: 4478611 (1984-10-01), Selden
patent: 4484644 (1984-11-01), Cook et al.
patent: 4944774 (1990-06-01), Keshavan et al.
patent: 5051112 (1991-09-01), Keshavan et al.
Planseeberichte fur Pulvermetallurgie, Bd. 15, 1967, pp. 46-48.
Materials Science and Technology, Jul. 1986, pp. 653-657.
Brunet Pierre
Maybon Guy
Bell Mark L.
Eilberg William H.
Technogenia S.A.
Thompson Willie J.
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