公开(公告)号：US3777362A

公开(公告)日：1973-12-11

申请号：US3777362D

申请日：1972-02-16

Applicant: ASEA AB

Inventor： NILSSON J ,  BRINKEBORN B

IPC: B21C23/22 ,  B21D39/04

CPC classification number: B21C23/22

Abstract: In manufacturing a rod or wire of compound material from a core of aluminum or aluminum alloy and a casing of copper or copper alloy by hydrostatic extrusion, a billet is used in which the core has a smaller external diameter than the internal diameter of the casing, so as to provide clearance therebetween sufficient that at least most damage to the casing during soft-annealing and handling will not be of sufficient extent to prevent the insertion of the core into a casing. An internal space is provided at the rear of the billet to collect the air present in the gap between the core and the casing as it is displaced when the core and casing are pressed into contact with each other.

Abstract translation: 在通过静电挤压从铝或铝合金的核心和铜或铜合金的壳体制造复合材料的棒或线时，使用其中芯具有比壳体的内径更小的外径的坯料， 以便提供足够的间隙，使得在软退火和处理期间至少对壳体的大部分损坏将不会有足够的程度来防止将芯插入壳体中。 在坯料的后部设置有内部空间，以在芯体和壳体彼此接触时移动时收集存在于芯部和壳体之间的间隙中的空气。