HUELSE ALS ZYLINDRISCHE DRUCKKAMMER FUER SPRITZGUSSMASCHINEN

摘要

A sleeve is composed of a relatively thin inner layer made of such highly infusible material as molybdenum, tungsten or their alloys, and an outer layer made of an iron-base alloy. For manufacture, a mixture of powders compounded to form an iron-base alloy when heated is compacted to cylindrical shape around a hollow cylinder suitably molded of one of the listed metals and alloys. The compact is then sintered to provide an outer layer of the iron-base alloy solidly united with the hollow cylinder.