Title:
クラッドパイプ
Document Type and Number:
Japanese Patent JP4766587
Kind Code:
B2
Abstract:
A clad pipe includes an external layer and a coating layer made of Ni base anticorrosion alloy. Both end portion areas of the coating layer are formed by a build-up welded layer (Ni base alloy of composition 1 ) on the inner surface of the external layer. Other areas are formed by a Ni base alloy layer (Ni base alloy of composition 2 ) fusion-bonded to the build-up welded layers and the inner surface of the pipe, a solidus-curve temperature of the Ni base alloy layer being 1300° C. or below and lower than a solidus-curve temperature of the Ni base alloy formed by build-up welding by 150° C. or more. Composition 1 and composition 2 are adjusted so that, in the same environment, corrosion resistance of the Ni base alloy of composition 1 is equivalent to or superior to that of the Ni base alloy of composition 2.
Inventors:
Youichi Matsubara
Akihiro Takeya
Seiichiro Miyata
Akihiro Takeya
Seiichiro Miyata
Application Number:
JP2004348161A
Publication Date:
September 07, 2011
Filing Date:
December 01, 2004
Export Citation:
Assignee:
Dai-ichi Kogyo Kogyo Co., Ltd.
Saken Co., Ltd.
Saken Co., Ltd.
International Classes:
B23K9/04; B21C37/15; C22C19/05; B22D13/02; B22D19/16; B23K9/00; B23K35/30; B32B1/08; B32B15/18; C22C38/00; C22C38/44; C22F1/00; C22F1/10; C23C4/08; C23C4/12; E21B17/00; F16L58/08; B23K101/06; B23K103/18
Domestic Patent References:
| JP2002103034A | ||||
| JP59046175A | ||||
| JP5065457U | ||||
| JP2001287004A | ||||
| JP5318071A | ||||
| JP61170554A | ||||
| JP2000119781A |
Attorney, Agent or Firm:
Hiroshi Aichi
Naomichi Masuko
Kaori Sato
Naomichi Masuko
Kaori Sato