发明名称 |
Copper alloy tube for heat exchanger excellent in fracture strength |
摘要 |
The present invention provides a copper alloy tube for heat exchangers which is tolerable to a high operating pressure of new cooling media such as carbon dioxide and HFC-based fluorocarbons, and is excellent in fracture strength, even if the tube is thinned, and a copper alloy tube for a heat exchanger which has a composition having specified amounts of Sn and P, has an average crystal grain size of 30 µm or less and has a high strength of 250 MPa or more of a tensile strength in the longitudinal direction of the tube improves the fracture strength as a texture in which the orientation distribution density in the Goss orientation is 4% or less. |
申请公布号 |
EP2056056(B1) |
申请公布日期 |
2010.06.16 |
申请号 |
EP20080018420 |
申请日期 |
2008.10.21 |
申请人 |
KOBELCO & MATERIALS COPPER TUBE, LTD.;KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) |
发明人 |
TAKAGI, TOSHIAKI;ARUGA, YASUHIRO;NAGAO, MAMORU;SHIRAI, TAKASHI;WATANABE, MASATO;ISHIBASHI, AKIHIKO |
分类号 |
F28F1/00;C22C9/02;C22C9/04;F28F21/08 |
主分类号 |
F28F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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