Hard facing

Details Hard facing Hard facing

1990-03-28

1991-09-24

Dixon, Jr., William R.

Abrasive tool making process, material, or composition

With inorganic material

Metal or metal oxide

51298, B24D 302

Patent

active

050511122

ABSTRACT:
A hard facing rod is made by mixing particles of tungsten carbide, particles of a metal binder, and a temporary organic binder. The mixture is pressed, preferably by extrusion, into the form of a rod. The organic binder is removed and the rod is heated to a sufficient temperature to sinter the metal particles together without melting so that the rod has a residual porosity in the range of from 5 to 20%. Such a rod is used for hard facing a metal surface in lieu of conventional tube-rods. The technique permits a high proportion of tungsten carbide relative to the metal matrix and provides uniform distribution of carbide particles in the hard facing.

REFERENCES:
patent: 2180813 (1939-11-01), Marvin
patent: 2833638 (1958-05-01), Owen
patent: 3109917 (1963-11-01), Schmidt
patent: 3768984 (1973-10-01), Foster
patent: 3790353 (1974-02-01), Jackson et al.
patent: 4481016 (1984-11-01), Campbell et al.
patent: 4604106 (1986-08-01), Hall et al.
patent: 4682987 (1987-07-01), Brady et al.
patent: 4694918 (1987-09-01), Hall
patent: 4726432 (1988-02-01), Scott et al.

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