公开(公告)号：US20100307429A1

公开(公告)日：2010-12-09

申请号：US12811450

申请日：2009-09-30

申请人： Nobuyoshi Komai ,  Takeshi Miyazawa ,  Fumio Nishi ,  Takumi Tokiyoshi ,  Nobuhiko Saito ,  Toshiyuki Imazato ,  Masahiko Hokano

发明人： Nobuyoshi Komai ,  Takeshi Miyazawa ,  Fumio Nishi ,  Takumi Tokiyoshi ,  Nobuhiko Saito ,  Toshiyuki Imazato ,  Masahiko Hokano

IPC分类号： F22B37/10

CPC分类号： F28F9/182 ,  B23K2101/14 ,  F22B37/104 ,  F22B37/22 ,  F28F9/18 ,  F28F21/082 ,  F28F2265/26

摘要： In order to provide a welding structure of a tube header and tube stubs which successfully improves the durability thereof against creep and fatigue damage of the tube stubs without interposing a component of a different material between the tube header and the tube stubs, i.e. requiring additional components, a welding structure of the present invention comprises: a tube header (2) being made of ferritic heat resisting steel; a plurality of tube stubs (4) which are welded onto an outer surface of the tube header, each of the tube stubs having a bended section, in which the plurality of tube stubs (4) are made of austenite stainless steel, and welded to the tube header (2) by using nickel base alloy as a welding material. Moreover annular chases (10) are respectively formed on the outer surface of the tube header (2) to surround welding portions of the tube header (2); joining portions (14) are formed on an inner side of the annular chases (10); butt grooves are formed by joining surfaces of the tube stubs (4) and the joining portions (14) in a continuous manner and welded by using the nickel base alloy as a welding material, the tube stubs having a diameter substantially same as those of the joining portions.

摘要翻译： 为了提供管集管和管桩的焊接结构，其成功地提高了其对管桩的蠕变和疲劳损伤的耐久性，而不在管集管和管桩之间插入不同材料的部件，即需要附加部件 本发明的焊接结构包括：由铁素体耐热钢制成的集管（2）; 多个管柱（4）焊接在管集管的外表面上，每个管桩具有弯曲部分，多个管柱（4）由奥氏体不锈钢制成，并焊接到 通过使用镍基合金作为焊接材料的管头（2）。 此外，环管（10）分别形成在管集管（2）的外表面上，以围绕管集管（2）的焊接部分; 连接部分（14）形成在所述环形行程（10）的内侧; 通过以连续的方式连接管短管（4）和接合部（14）的表面并通过使用镍基合金作为焊接材料进行焊接来形成对接槽，该管短管的直径基本上与 接合部分。