Title:
A Cu/Al COMPOSITE PIPE AND A MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2007/121622
Kind Code:
A1
Abstract:
A Cu/Al composite pipe and a manufactured method thereof are disclosed. The inner
layer of the pipe is Cu, and the outer pipe is Al. The middle of the two layers forms
a combinative layer due to the mutual diffusion of Cu and Al. The raw composite
pipe is rolled with single rolling by the planetary rolling machine, wherein
the rolling process has the single rolling area reducing rate of 50%~95%, the
exit rolling speed of 5~30m/min, the temperature in the deformation area of 200ºC~600ºC.
The pipe can be used in many fields, such as architecture, refrigeration, air-condition,
refrigerator, solar energy, water heater, condenser and radiator, etc.
Inventors:
XIAO KEJIAN (CN)
QI WEI (CN)
TIAN FUSHENG (CN)
QI WEI (CN)
TIAN FUSHENG (CN)
Application Number:
PCT/CN2006/002218
Publication Date:
November 01, 2007
Filing Date:
August 29, 2006
Export Citation:
Assignee:
JIANGSU XINGRONG HI TECH COMPA (CN)
XIAO KEJIAN (CN)
QI WEI (CN)
TIAN FUSHENG (CN)
XIAO KEJIAN (CN)
QI WEI (CN)
TIAN FUSHENG (CN)
International Classes:
B21B37/78; F16L9/18
Foreign References:
| CN1475316A | 2004-02-18 | |||
| CN88101739A | 1988-11-23 | |||
| CN1468670A | 2004-01-21 | |||
| CN1390677A | 2003-01-15 | |||
| CN1480268A | 2004-03-10 | |||
| JP2000263250A | 2000-09-26 |
Other References:
WANG Z.: "Forming Regulation of Cu/Al Bimetal Tube by Many Passes Plug Drawing", CHINESE JOURNAL OF RARE METALS, vol. 26, no. 3, May 2002 (2002-05-01), pages 1
Attorney, Agent or Firm:
BEIJING GOLDENG BRIDGE IP CO., LTD. (Horizon International TowerNo.6 Zhichun Road,Haidian District, Beijing 8, CN)
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