H.c. Starck Gmbh

H.c. Starck Tungsten Gmbh

Christian Gerk

Markus Zumdick

Ulf Waag

Klaus-Dieter Wernicke

Klause-Dieter Wernicke

A component obtainable by a process which includes providing a composition and sintering the composition at a sintering temperature of from 1250&#xb0; C. to 1400&#xb0; C. for a period of from 3 to 15 minutes. The composition includes hard material particles with an inner core of fused tungsten carbide and an outer shell of tungsten carbide, and a binder metal selected from Co, Ni, Fe and alloys with at least one metal selected from Co, Ni and Fe.

Component comprising hard metal composition including fused tungsten carbide

A process for producing a component includes providing a composition comprising hard material particles and a binder metal, and sintering the composition at a sintering temperature of from 1250&#xb0; C. to 1400&#xb0; C. for a period of from 3 to 15 minutes. The hard material particles comprise an inner core comprising fused tungsten carbide and an outer shell comprising tungsten carbide. The binder metal is selected from the group consisting of Co, Ni, Fe and alloys comprising at least one metal selected from Co, Ni and Fe.

Hard metal composition

A dispersion comprising hard material particles and at least one organic binder and/or at least one plasticizer. The hard material particles comprise an inner core comprising a fused tungsten carbide and an outer shell comprising tungsten carbide.

Dispersion, method for producing same, and use thereof

The invention relates to a drill bit containing tungsten carbide powder having powder particles which have a core of cast tungsten carbide and a shell of tungsten monocarbide.

Drill bits comprising dual-phase tungsten carbide material

The invention relates to tungsten carbide powder consisting of powder particles, which have a core comprised of tungsten cast carbide and a covering comprised of tungsten monocarbide, to the production thereof by heating a tungsten cast carbide powder in the presence of a carbon source to a temperature ranging from 1300 to 2000&#xb0; C., and to the use thereof for coating surfaces of parts subjected to wear and for producing drill bits.

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Ostlutter, Germany

Christian Gerk