Title:
REACTOR CONTROL ROD
Document Type and Number:
Japanese Patent JP2013054037
Kind Code:
A
Abstract:
To solve the problem that hafnium as a neutron absorption member has a life longer than that of boron carbide, however, a conventional reactor control rod made of hafnium has a sheath made of stainless steel, and a risk of IASCC becomes high in accordance with irradiation in a long period.
A reactor control rod of the present invention includes: a blade 31; and a support member 1 which supports the blade, in which the blade 31 is constituted only of the blade in the shape formed by bending a flat plate constituted of zirconium-hafnium alloy which is a neutron absorption member.
Inventors:
KANO FUMIHISA
TSUBOTA MOTOJI
OKA KEIICHIRO
KATAYAMA YOSHINORI
HAYASHI TAKAHIRO
TSUBOTA MOTOJI
OKA KEIICHIRO
KATAYAMA YOSHINORI
HAYASHI TAKAHIRO
Application Number:
JP2012254750A
Publication Date:
March 21, 2013
Filing Date:
November 20, 2012
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
G21C7/24; C22C16/00; G21C7/10; G21C7/113
Domestic Patent References:
| JPS59208044A | 1984-11-26 | |||
| JPH01284795A | 1989-11-16 | |||
| JPH04289490A | 1992-10-14 | |||
| JPH09504863A | 1997-05-13 | |||
| JPH02236198A | 1990-09-19 | |||
| JPS61180187A | 1986-08-12 | |||
| JPH10104382A | 1998-04-24 | |||
| JPH11264885A | 1999-09-28 | |||
| JP2000266882A | 2000-09-29 |
Attorney, Agent or Firm:
Fujiwara Yasutaka
Hidenori Terawaki
Hidenori Terawaki
Previous Patent: RADAR DEVICE
Next Patent: SUGAR CHAIN PURIFICATION CONCENTRATION METHOD USING SUGAR CHAIN CAPTURE MOLECULE AND SUGAR CHAIN STR...
Next Patent: SUGAR CHAIN PURIFICATION CONCENTRATION METHOD USING SUGAR CHAIN CAPTURE MOLECULE AND SUGAR CHAIN STR...