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:
Jul. 01, 2003
Filed:
Feb. 19, 2002
Motonori Nishida, Kyoto, JP;
Akira Takagi, Kyoto, JP;
Toshiki Ohnishi, Kyoto, JP;
Osamu Kajita, Uji, JP;
Fukuda Metal Foil & Powder Co., Ltd., Kyoto, JP;
Abstract
The invention provides a process for producing vanadium alloy foil suitable as a membrane in a hydrogen-refining unit. A vanadium alloy comprising 5 to 25% by weight of at least one selected from the group consisting of Ni, Co, Mo, Fe and Ag, 0.01 to 5% by weight of at least one selected from the group consisting of Ti, Zr and Y, and the balance being V is used. A melt of the vanadium alloy is prepared by use of a crucible having slit in the bottom, a roll comprising a cylinder whose central axis is arranged to be parallel to the slit is rotated, the melt is jetted from the slit to the roll surface the melt is jetted from the slit is rapidly cooled, and the vanadium alloy solidified on the roll surface is continuously exfolitated from the roll surface to obtain the foil.