Articles having improved resistance to thermal cracking

Details Articles having improved resistance to thermal cracking Articles having improved resistance to thermal cracking

C - Chemistry, Metallurgy

22

C

C22C 29/06 (2006.01) B21B 27/02 (2006.01) B22F 7/06 (2006.01) B23B 51/04 (2006.01) E21B 10/52 (2006.01)

Patent

CA 2663519

An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.

L'invention concerne un article comprenant une partie de travail contenant du carbure cimenté, et une partie dissipateur de chaleur en communication thermique avec la partie de travail. La partie dissipateur de chaleur comprend un matériau de dissipateur de chaleur ayant une conductivité thermique supérieure à la conductivité thermique du carbure cimenté. L'invention concerne également des procédés de fabrication d'un article comprenant une partie de travail contenant du carbure cimenté, et une partie dissipateur de chaleur en communication thermique avec la partie de travail et comprenant un matériau de dissipateur de chaleur ayant une conductivité thermique supérieure à la conductivité thermique du carbure cimenté. La partie dissipateur de chaleur conduit la chaleur hors de la partie de travail.

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