| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such a problem that a spindle shaft used for a main shaft or the like for mainly holding a workpiece for increasing machining accuracy, positioning accuracy, and positioning speed of a processing machine is necessary to be made of material higher abrasion resistance against abrasion by friction generated by external force and repeating loads. <P>SOLUTION: An organic binder is added to SiC powder, they are mixed and molded, Si is brought into contact with at least a partial surface of the molded body, and Si fused by heating at 1500-1700°C in vacuum or argon atmosphere is soaked in the molded body. The spindle shaft is made of Si-SiC composite material obtained in that manner where content of SiC is 30-50 vol%. <P>COPYRIGHT: (C)2004,JPO |
