The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 1986
Filed:
Aug. 21, 1984
Applicant:
Inventors:
Norio Morishige, Yokosuka, JP;
Ryoichi Kume, Yokohama, JP;
Assignee:
Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148127 ; 208154 ;
Abstract
Disclosed is a method for preventing hydrogen-induced disbonding of austenitic stainless steel cladding, which is made on a low alloy steel, in a reactor vessel which has been used in a high-temperature and high-pressure hydrogen atmosphere. The clad steel is cooled from its operating temperature to a temperature which is not lower than 100.degree. C. Then, the clad steel is maintained at a temperature between said temperature which is not lower than 100.degree. C. and a postweld heat treatment so as to effect hydrogen degassing treatment. Thereafter, the clad steel is further cooled.