Infiltrant matrix powder and product using such powder

Details Infiltrant matrix powder and product using such powder Infiltrant matrix powder and product using such powder

2006-06-05

2009-08-18

King, Roy (Department: 1793)

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

Reexamination Certificate

active

07575620

ABSTRACT:
A matrix powder that includes (a) about 15 weight percent of −325 Mesh cast tungsten carbide particles; (b) about 2 weight percent −325 Mesh particles comprising one or more of iron particles and nickel particles; (c) about 2 weight percent +60 Mesh macrocrystalline tungsten carbide particles; (d) about 6 weight percent −60+80 Mesh macrocrystalline tungsten carbide particles; and (e) about 75 weight percent −80+325 Mesh hard particles. A portion of component (e) forms between about 10 weight percent and about 20 weight percent of the matrix powder. The portion of component (e) that is crushed cemented tungsten carbide particles containing one or more of cobalt and nickel within one of the following particle size ranges: (i) −80+120 Mesh hard particles; (ii) −120+170 Mesh hard particles; (iii) −170+230 Mesh hard particles; (iv) −230+325 Mesh hard particles; (v) −325 Mesh hard particles. The balance of component (e) is macrocrystalline tungsten carbide particles.

REFERENCES:
patent: 3379503 (1968-04-01), McKenna
patent: 4834963 (1989-05-01), Terry et al.
patent: 4837417 (1989-06-01), Funk
patent: 5589268 (1996-12-01), Kelley et al.
patent: 5662183 (1997-09-01), Fang
patent: 5733649 (1998-03-01), Kelley et al.
patent: 5733664 (1998-03-01), Kelley et al.
patent: 5776593 (1998-07-01), Massa et al.
patent: 5806934 (1998-09-01), Massa et al.
patent: 5944127 (1999-08-01), Liang et al.
patent: 6024776 (2000-02-01), Heinrich et al.
patent: 6287360 (2001-09-01), Kembaiyan et al.
patent: 6780458 (2004-08-01), Seth et al.
patent: 6984454 (2006-01-01), Majagi
PCT/US07/12886 Written Opinion of the International Searching Authority mailed Nov. 21, 2007 (3 pages).
PCT/US07/12886 International Search Report mailed Nov. 21, 2007 (1 page).

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