PRESSURE CONTAINER, COMPRESSOR AND CASTING METHOD OF CYLINDER BLOCK

摘要

A pressure container composed, at least partially, of a metal composite material (40) consisting of a light metal (41) becoming a matrix, and a planar iron based member (42) principally containing iron and buried in the light metal (41) while having many through holes penetrating from the front surface to the rear surface. A pressure container having novel arrangement in which pressure resistance is enhanced without increasing the wall thickness, and a compressor having the pressure container as a housing can be provided. A casting method suitable for producing a cylinder block, characterized by arranging a substantially tubular iron based member (42) having a cut (45) at the opening end in a casting die (80) having hollow sections (86, 87) forming a molding cavity surface (84) and a molten metal pouring passage (85) communicating with the hollow sections such that the opening end abuts against the cavity surface (84) and spaces (86, 87) are provided on the front surface and rear surface sides of the iron based member (42), entirely filling the hollow section with light metal molten metal (41') poured from the molten metal pouring passage (85) through the cut (45), and casting the iron based member (42) with the light metal (41).