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. 12, 2016
Filed:
Oct. 19, 2011
Hiromitsu Kuroda, Hitachi, JP;
Toru Sumi, Hitachi, JP;
Hideyuki Sagawa, Tokai-mura, JP;
Seigi Aoyama, Kitaibaraki, JP;
Masayoshi Goto, Hitachi, JP;
Takahiko Hanada, Hiki-gun, JP;
Takahiro Sato, Hitachi, JP;
Hidenori Abe, Hitachi, JP;
Hiromitsu Kuroda, Hitachi, JP;
Toru Sumi, Hitachi, JP;
Hideyuki Sagawa, Tokai-mura, JP;
Seigi Aoyama, Kitaibaraki, JP;
Masayoshi Goto, Hitachi, JP;
Takahiko Hanada, Hiki-gun, JP;
Takahiro Sato, Hitachi, JP;
Hidenori Abe, Hitachi, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
A weldment includes metal materials that are welded to each other. At least one of the metal materials includes pure copper including an inevitable impurity, more than 2 mass ppm of oxygen, and an additive element selected from the group consisting of Mg, Zr, Nb, Fe, Si, Al, Ca, V, Ni, Mn, Ti and Cr. A method of manufacturing a weldment includes melting a dilute copper alloy material by SCR continuous casting and rolling at a molten copper temperature of not less than 1100° C. and not more than 1320° C. to make a molten metal, forming a cast bar from the molten metal, forming a dilute copper alloy member by hot-rolling the cast bar, and welding the dilute copper alloy member to a metal material. The dilute copper alloy material includes the pure copper, more than 2 mass ppm of oxygen, and the additive element,?