| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid lubricant enveloped casting material efficiently and inexpensively in order to eliminate the process for boring a hole to be embedded with a solid lubricant in the metal base of a round pipe, and embedding and securing the solid lubricant in the hole with adhesive interposed therebetween when a composite bush bearing embedded with solid lubricant is manufactured. <P>SOLUTION: Molten metal 13 is supplied by centrifugal casting to a cylindrical air gap 11 formed between the inner circumferential surface of a mold 5 and the outer circumferential surface of an inner tube 1 where a solid lubricant 4 is embedded while projecting to the outer circumferential surface incorporated in the inner space of the mold, and a cylindrical solidification layer of the metal where the solid lubricant is enveloped by casting and compounded is formed in the air gap, thus a solid lubricant enveloped casting material is obtained. <P>COPYRIGHT: (C)2011,JPO&INPIT |
