发明公开
EP2527076A1 DOUBLE-WALLED PIPE, METHOD FOR MANUFACTURING DOUBLE-WALLED PIPE, AND VAPOR GENERATOR
审中-公开
DOPPELWANDIGES ROHR，VERFAHREN ZUR HERSTELLUNG DES DOPPELWANDIGEN ROHRS UND DAMPFGENERATOR
- 专利标题： DOUBLE-WALLED PIPE, METHOD FOR MANUFACTURING DOUBLE-WALLED PIPE, AND VAPOR GENERATOR
- 专利标题（中）： DOPPELWANDIGES ROHR，VERFAHREN ZUR HERSTELLUNG DES DOPPELWANDIGEN ROHRS UND DAMPFGENERATOR
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申请号： EP11734516.5申请日： 2011-01-20
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公开(公告)号： EP2527076A1公开(公告)日： 2012-11-28
- 发明人: HINO, Takehisa , TAMURA, Masataka , TANAKA, Yoshimi , KONO, Wataru , SAKAMOTO, Toru , TERASHIMA, Toshinori , SATO, Katsuhiko , JIMBO, Noboru , MARUYAMA, Shigeki
- 申请人： Kabushiki Kaisha Toshiba
- 申请人地址： 1-1 Shibaura 1-chome Minato-ku Tokyo 105-8001 JP
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： 1-1 Shibaura 1-chome Minato-ku Tokyo 105-8001 JP
- 代理机构： Delumeau, François Guy
- 优先权： JP2010010485 20100120
- 国际公布： WO2011089909 20110728
- 主分类号： B23K26/20
- IPC分类号： B23K26/20 ; B23K33/00 ; F22B1/06 ; G21C1/02 ; G21D1/00 ; B23K9/00 ; B23K9/028
摘要：
A double-walled tube includes: a plurality of double-walled tube forming members, each having an inner tube and an outer tube, connected by welding at welding portions of axis direction end portions thereof; and each of the welding portions of the double-walled tube forming members including a groove having a length in an axis direction set to be equal to or greater than 1/2 of a width of a weld bead formed by the welding at the welding portion.
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