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:
Dec. 10, 2013
Filed:
Jun. 11, 2009
Shin Nishimoto, Tokyo, JP;
Takashi Nakano, Tokyo, JP;
Yoshinori Tanaka, Tokyo, JP;
Tatsuaki Fujikawa, Tokyo, JP;
Kenji Kawasaki, Hyogo, JP;
Yoshikuni Kadoya, Hyogo, JP;
Ryuichi Yamamoto, Hyogo, JP;
Yuichi Hirakawa, Hyogo, JP;
Takashi Shige, Hyogo, JP;
Shin Nishimoto, Tokyo, JP;
Takashi Nakano, Tokyo, JP;
Yoshinori Tanaka, Tokyo, JP;
Tatsuaki Fujikawa, Tokyo, JP;
Kenji Kawasaki, Hyogo, JP;
Yoshikuni Kadoya, Hyogo, JP;
Ryuichi Yamamoto, Hyogo, JP;
Yuichi Hirakawa, Hyogo, JP;
Takashi Shige, Hyogo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
There are provided an Ni-based alloy high-chrome steel structure and its manufacturing method capable of joining Ni-based alloys and high-chrome steels by welding, and performing suitable heat treatment, thereby maintaining the strength in the joints. In a manufacturing method of a structure formed by joining together at least two first members formed from Ni-based alloys by welding, and joining a second member formed from high-chrome steels to a member where the first members have been joined together, the manufacturing method includes the steps: joining together the at least two first members formed from Ni-based alloys by welding; performing first-stage aging treatment on a welded joint between the first members, and then, joining the second member formed from high-chrome steels to the member where the first members have been joined together by welding; and then, performing second-stage aging treatment on the welded joint between the first members, and performing heat treatment after welding on a welded portion between the first members and the second member.