Earth-boring bit parts including hybrid cemented carbides...

Details Earth-boring bit parts including hybrid cemented carbides... Earth-boring bit parts including hybrid cemented carbides...

E - Fixed Constructions

21

B

E21B 10/08 (2006.01) C22C 29/00 (2006.01) E21B 10/42 (2006.01) E21B 10/46 (2006.01)

Patent

CA 2732517

An earth-boring bit part such as, for example, a bit body, roller cone, or mud nozzle includes a hybrid cemented carbide composite. The hybrid cemented carbide includes a cemented carbide dispersed phase, and a cemented carbide contin-uous phase. A method of manufacture also is disclosed.

La présente invention concerne une pièce de trépan de foreuse telle que, par exemple, un corps de trépan, un cône de roulement ou une buse à boue. Ladite pièce comprend un composite de carbure métallique hybride, ledit carbure comportant une phase dispersée de carbure métallique et une phase continue de carbure métallique. Linvention concerne également un procédé de fabrication.

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