| 摘要 |
PURPOSE:To join firmly a BN-base sintered material member and a WC-base sintered hard alloy member, in a good joint state and with high shear strength by interposing a brazing material of a composition whose main part containing at least P of a specified quantity consists of one or more of Co and Ni, in the joint surface of both said members, and executing prescribed pressurization and heating. CONSTITUTION:A brazing material of a composition which contains at least 5-40atm% P and consists of one or more of Co and Ni as the remaining part is interposed in the joint surface of both said members containing one or more of Co and Ni as a coupling phase forming component, respectively. Subsequently, in this state, both said members are heated to a prescribed temperature within a range of 800-1,000 deg.C by applying the pressure of >=20kg/cm<2>, the P component in the brazing material is diffused into both said members and both the members are joined firmly. As necessary, as for said brazing material, that which has contained 5-40% P and 1-10% C is used.
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