Gte Products Corporation

Other

Edward R Kimmel

Mary E Shaffer

Geoffrey L Harris

Richard F Cheney

Anil Bansal

Thomas R Pinkowski

Christopher A Kronenwetter

A method is disclosed for producing tungsten carbide-nickel powder which comprises forming a powder mixture consisting essentially of in percent by weight of about 0.1 to about 1.0 dimolybdenum carbide, about 1 to about 4 tungsten metal powder, about 80 to about 98% tungsten carbide and about 2 to about 20 nickel, wherein a sintered article produced from the powder has a relatively uniform microstructure.

Method for preparation of WC-NI grade powder

Tungsten carbide is produced by mixing tungsten oxide or ammonium paratungstate with carbon to form a mixture which is substantially reduced in a non-reducing atmosphere in the presence of sufficient carbon to produce a carbon content in the resulting mixture of less than seven percent by weight, and adding sufficient carbon to the resulting reduced mixture to increase the carbon content to at least the stoichiometric amount needed to form monotungsten carbide prior to carburization of the mixture to monotungsten carbide.

Method of producing monotungsten carbide powder

In a method for determining the grain size of a cemented carbide for a given quantity and composition of the metal binder, the grain size is determined as a function of the coercive force and quantity of metal binder.

Method for determining the size of metal carbide grains in cemented

A uniform, large size tungsten powder having properties which make it suitable for producing large size tungsten carbide powder is produced by doping a tungsten oxide starting powder with a lithium compound prior to reduction

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Sayre, PA, United States of America

Edward R Kimmel