Hardfacing material for rolling cutter drill bits

Details Hardfacing material for rolling cutter drill bits Hardfacing material for rolling cutter drill bits

1996-07-01

1998-04-21

Tsay, Frank

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175307, 428558, E21B 1052, B32B 1502

Patent

active

057408726

ABSTRACT:
A material for applying hardfacings to the teeth of steel tooth rolling cutter drill bits comprises a mixture of refractory metal carbide, such as tungsten carbide, cobalt and metallic matrix powders formed into a core structure and surrounded by a thin metallic sheath. The metallic matrix powders include iron, deoxidizers and alloy powders. The ratio by weight of the metallic matrix powders to the sheath exceeds 2.5, so that the core structure provides most of the matrix material for the hardfacing and only a small proportion of such material is provided by the thin sheath, which may have a thickness of only 0.001" to 0.010". The core structure may include an organic binder, such as methylcellulose, to provide strength and to prevent segregation of the core materials.

REFERENCES:
patent: 1757601 (1930-05-01), Stoody et al.
patent: 3023130 (1962-02-01), Wasserman et al.
patent: 3252828 (1966-05-01), Quaas
patent: 3800891 (1974-04-01), White et al.
patent: 4076883 (1978-02-01), Dittrich et al.
patent: 4554130 (1985-11-01), Ecer
patent: 4562892 (1986-01-01), Ecer
patent: 4592252 (1986-06-01), Ecer
patent: 4630692 (1986-12-01), Ecer
patent: 4699848 (1987-10-01), Maybon
patent: 4726432 (1988-02-01), Scott et al.
patent: 4741974 (1988-05-01), Longo et al.
patent: 4814234 (1989-03-01), Bird
patent: 4836307 (1989-06-01), Keshavan et al.
patent: 4944774 (1990-07-01), Keshavan et al.
patent: 5051112 (1991-09-01), Keshavan et al.
patent: 5279374 (1994-01-01), Sievers et al.

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