Method of forming a composite rod

Details Method of forming a composite rod Method of forming a composite rod

1978-08-17

1979-07-10

Baldwin, Robert D.

Cleaning and liquid contact with solids

Processes

Using solid work treating agents

134 29, 164 80, 164 97, 164102, 164105, 75204, B22D 2306, B22D 1902, B08B 700

Patent

active

041606760

ABSTRACT:
A method of forming a composite rod having tungsten carbide particles embedded in a matrix comprising the steps of washing the tungsten carbide particles, placing a predetermined quantity of the carbide particles in a graphite mold, heating the mold and the carbide particles to a range of about 300.degree. to 500.degree. F. and pouring a water solution of flux in the mold while maintaining the temperature whereby the water boils off and the flux coats the surfaces of the carbide particles, placing a matrix in the mold and applying a multi-flame heat to the mold and carbide particles while stirring the particles in the mold with a graphite rod to assist in intimate contact and bonding of the melted matrix with the carbide particles to form a composite rod. The composite rod is then boiled in a weak solution of sodium hydroxide, rinsed and polished by buffing with wire bristles.

REFERENCES:
patent: 2970065 (1961-01-01), Greene
patent: 3028644 (1962-04-01), Waldrop
patent: 3258817 (1966-07-01), Smiley
patent: 3941181 (1976-03-01), Stoody

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