1 results about "Hard core" patented technology

The invention relates to the field of hardware tools, in particular to a separating preventing hard alloy maintenance tool. The separating preventing hard alloy maintenance tool comprises a communicating rod, a base metal main body, an inclined surface, penetration mounting holes and alloy components; the lower part of the communicating rod is connected with the base metal main body; the inclined surface is arranged at the edge of the upper part of the base metal main body; the penetration mounting holes are formed in the inclined surface; the alloy components are embedded into the penetration mounting holes; each alloy component comprises a hollow sleeve, a super-hard core body and a connecting shaft assembly; each super-hard core body is arranged in the corresponding hollow sleeve in a sleeving manner and is fixedly connected with the corresponding connecting shaft assembly. According to the separating preventing hard alloy maintenance tool, through the arrangement of the penetration mounting holes and the hollow sleeves, the super-hard core bodies can be subjected to dual protection, and the problem of separating of the super-hard core bodies caused by the difference of thermal expansion coefficients is prevented; through the arrangement of the inclined surface, direct impact pressure in a furnace is favourably transferred to one side so as to reduce a pressure coefficient.