公开(公告)号：WO2007068439A1

公开(公告)日：2007-06-21

申请号：PCT/EP2006/011936

申请日：2006-12-12

Applicant: KOCKS TECHNIK GMBH & CO. KG ,  GOLDEN DRAGON PRECISE COPPER TUBE GROUP INC. ,  BINDERNAGEL, Ali ,  TEYKE, Rötger, Lothar ,  ZHIBIN, Wang ,  XIGANG, Zhang

Inventor： BINDERNAGEL, Ali ,  TEYKE, Rötger, Lothar ,  ZHIBIN, Wang ,  XIGANG, Zhang

IPC: B21B23/00 ,  B21C1/22

CPC classification number: B21B23/00 ,  B21B1/42 ,  B21B13/20 ,  B21B45/0224 ,  B21B45/04 ,  B21B2003/005 ,  B21B2015/0028 ,  B21C37/06

Abstract: The present invention discloses a method for manufacturing a tube of copper or copper alloy (1), including: a) removing a surface oxidation layer from a tubular blank; b) rapidly rolling said tubular blank by means of a four-planet rolling mill (2, 6, 7) ; c) rapidly cooling down said tubular blank; d) linearly drawing the cooled-down tubular blank with a linear drawing equipment. In said manufacturing method, a four-planet rolling mill with a relatively strong strength is utilized. It provides a faster rolling speed, which is about three times of that in the prior art . Consequently, huge deformation heat is produced. A two-stage cooling down is subsequently carried out so that the recrystallization process of the coarse casting structures may be accelerated. The grains after recrystallization are small and uniform, with sizes of 0.010-0.040mm. Meanwhile, the drawing process for the tubular blank may reduce the defects on the tubular surface.

Abstract translation: 本发明公开了一种铜或铜合金管（1）的制造方法，包括：a）从管状坯料除去表面氧化层; b）通过四行星式轧机（2,6,7）快速滚动所述管状坯料; c）快速冷却所述管状坯料; d）用线性拉丝设备直线拉伸冷却管状坯料。 在所述制造方法中，利用具有较强强度的四行星式轧机。 它提供了更快的轧制速度，这是现有技术中的三倍。 因此，产生巨大的变形热。 随后进行两级冷却，使得可粗化铸造结构的再结晶过程。 再结晶后的晶粒小，均匀，尺寸为0.010-0.040mm。 同时，用于管状坯料的拉丝工艺可以减少管状表面上的缺陷。