发明名称 Improvements in and relating to extrusion processes for copper alloys
摘要 399,136. Squirting. VEREINIGTE DEUTSCHE METALLWERKE AKT.- GES. ZWEIGNIEDERLASSUNG SUDDEUTSCHE METALLINDUSTRIE, 79, Geisseestrasse, Nuremberg, Germany. June 27, 1933, No. 18268. Convention date, June 30, 1932. [Class 83 (iv).] Working at specified temperatures.-Copper alloys which cannot be satisfactorily extruded in the cold, are heated to 200-650‹ C. and preferably to 300-600‹ C., the temperature lying below the recrystallization temperature of the metal, the metal then being subjected to a sudden powerful impact in the press so that the temperature is raised to above the recrystallization temperature.
申请公布号 GB399136(A) 申请公布日期 1933.09.28
申请号 GB19330018268 申请日期 1933.06.27
申请人 VEREINIGTE DEUTSCHE METALLWERKE A.G. ZWEIGNIEDERLASSUNG SUEDDEUTSCHE METALLINDUSTRIE 发明人
分类号 B21C23/01 主分类号 B21C23/01
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