B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
13/11
B23K 3/00 (2006.01) B22D 19/08 (2006.01) B22F 7/06 (2006.01) B23B 27/14 (2006.01) C04B 35/5831 (2006.01) C22C 26/00 (2006.01)
Patent
CA 1090062
ABSTRACT OF THE DISCLOSURE A sintered compact for use in a machining tool comprises 80 to 10 volume % of high pressure form of boron nitride, and the balance matrix generated from at least one binder compound material selected from the group consisting of carbide, nitride, carbonitride, boride and silicide of IVa, Va and VIa transition metal of the periodical table, their mixture and their solid solution compound, the matrix forming a continuous bonding structure in a sintered body. A method of producing the compact comprises preparing a mix of 80 to 10 volume % of high pressure form of boron nitride powder with 20 to 90 volume % of at least on powdered binder compound selected from the group consisting of carbide, nitride, carbonitride, boride and silicide of IVa, Va and VIa, metal, their mixture and their solid solution compound, and sintering the mix under pressure more than 20 Kb at temperatures higher than 700° C for more than 3 minutes. - 1 -
293584
Hara Akio
Yazu Shuji
George H. Riches And Associates
Sumitomo Electric Industries Ltd.
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