| 摘要 |
PURPOSE:To obtain a titled composite metallic body which has excellent strength and wear resistance and is free from variance in quality by dispersing small lumps formed by combining inorg. fibers with a metallic material consisting of Al, Mg, etc. into a separately prepd. metallic melt consisting of Al or Mg and subjecting the same to die casting. CONSTITUTION:The above-mentioned primary composite bodies made into small lumps by reworking are added under stirring to the separately prepd. metallic melt of Al or Mg and are dispersed and mixed therewith. Such mixture is ejected from a small hole and is poured fluidly into a cavity, by which the mixture is die-cast. The short fiber reinforcing material in the above-mentioned small lumps is thereby unraveled and uniformly dispersed, by which the intended composite metallic body compounded with the inorg. fibers is obtd. Carbon fibers, silicon carbide fibers, etc. are used as the reinforcing material to be used in this invention. |
