专利内容由知识产权出版社提供
专利名称：Compression casting method and apparatus
therefor
发明人：Keiichiro Noguchi申请号：US07/7355申请日：19910129公开号：US05076341A公开日：19911231
摘要：A casting is formed, by compression casting, in a mold having a casting cavitywhich is formed by at least an outer mold die and a sand core. After feeding a moltenmetal into the casting cavity through a pouring gate, a compressive pressure, maintainedat a lower extreme of approximately 2.5 atmospheres, is applied to the molten metalthrough the pouring gate in an early stage of solidification of the molten metal. Thecompressive pressure is varied, either gradually or quickly, to an upper extreme ofapproximately 10 atmospheres as the solidifcation of the molten metal progresses pastan early stage of solidification, and is at this time applied to the solidifying molten metalthrough the sand core.
申请人：MAZDA MOTOR CORPORATION
代理机构：Fleit, Jacobson, Cohn, Price, Holman & Stern
更多信息请下载全文后查看
