Title:
原子力発電プラント用炉心シュラウドの製造方法及び原子力発電プラント構造物
Document Type and Number:
Japanese Patent JP5260268
Kind Code:
B2
Abstract:
The present invention provides a method of manufacturing a core shroud for a nuclear plant and a nuclear power plant structure in which a groove portion is easily assembled in the case of manufacturing the core shroud having a weld structure of a nuclear power plant by a laser welding, and it is possible to obtain a weld joint portion in which a plastic distortion region and a residual stress are as small as possible, going with a solidification shrinkage of the weld portion. At a time of welding butted portions of a plurality of members constructing a core shroud, a root face is provided in the butted portion, a length of the root face is set to 25% to 95% of a thickness of the thinner one of the butted portions of a plurality of members, a narrow groove is provided in the other than the root face, and the butted portions are welded by a laser welding using a weld wire.
Inventors:
Eiji Ashida
Zhang Xingdong
Tarazawa Sho
Masaya Okada
Yusuke Yasuma
Zhang Xingdong
Tarazawa Sho
Masaya Okada
Yusuke Yasuma
Application Number:
JP2008331832A
Publication Date:
August 14, 2013
Filing Date:
December 26, 2008
Export Citation:
Assignee:
Hitachi ge Nuclear Energy Co., Ltd.
International Classes:
B23K15/00; B23K26/14; B23K26/21; B23K33/00; G21C13/00; G21D1/00
Domestic Patent References:
| JP2008284588A | ||||
| JP61017389A | ||||
| JP10328860A | ||||
| JP10216942A |
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Yuji Toda