发明名称 MANUFACTURE OF RARE EARTH MAGNET
摘要 PURPOSE:To obtain a sintered body having no deformation like warp other than the deformation within a surface, by sintering a compact mounted on a base stand via rolling bodies. CONSTITUTION:A compact 4 is made up in a specified form by molding rare earth material powder, and is sintered on a base stand 3. In this process, rolling bodies 11 (12) are interposed between the the compact 4 and the base stand 3. The rolling bodies have a form such as a ball 11, a roll 12 and a round rod capable of rolling on the surface. As the result, the rolling bodies roll on the base stand in accordance with the thermal deformation generating in the compact 4 at the time of sintering, and the deformation in a surface is not prevented at all, so that the deformation such as warp other than the deformation within the surface can be avoided.
申请公布号 JPS63228702(A) 申请公布日期 1988.09.22
申请号 JP19870063611 申请日期 1987.03.18
申请人 DAIDO STEEL CO LTD 发明人 YOSHIKAWA NORIO
分类号 B22F3/10;H01F1/08;H01F41/02 主分类号 B22F3/10
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