Abrasive wear-resistant hardfacing materials, drill bits and...

Details Abrasive wear-resistant hardfacing materials, drill bits and... Abrasive wear-resistant hardfacing materials, drill bits and...

B - Operations, Transporting

24

D

B24D 3/06 (2006.01) C09K 3/14 (2006.01) C22C 19/03 (2006.01) C22C 29/08 (2006.01) E21B 10/54 (2006.01)

Patent

CA 2664212

An abrasive wear-resistant material includes a matrix material and a plurality of -40/+80 ASTM mesh dense sintered carbide pellets. A rotary drill bit having an exterior surface and an abrasive wear-resistant material disposed on at least a portion of the exterior surface of the bit body is provided. Methods for applying an abrasive wear-resistant material to a surface of a drill bit are also disclosed.

Un matériau abrasif résistant à l'usure comprend un matériau de matrice et une pluralité de granulés de carbure denses frittés correspondant à une taille de tamis ASTM de -40/+80. Un trépan rotatif possède une surface externe et un matériau abrasif résistant à l'usure disposé sur au moins une partie de la surface externe du corps du trépan. L'invention concerne aussi des précédés pour appliquer un matériau abrasif résistant à l'usure à une surface d'un trépan.

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