Title:
SUPERCONDUCTING HIGH FREQUENCY ACCELERATION CAVITY AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP3968215
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To manufacture a superconducting high frequency acceleration cavity with no bead line by welding without any necessity of labor and time for manufacturing a surplus metal mold.
SOLUTION: A plate material 2 having superconductivity covers over the outer circumferential surface of a mandrel 1 having a shape accorded with the inside shapes of a large-diameter part and a small-diameter part of the high frequency acceleration cavity 6 and constituted of a material decomposed more easily than the superconductive material, and rotation formed. A cylindrical cavity molding 4 made of the superconducting material and having the large-diameter part and the small-diameter part in a state covering over the outer circumferential surface of the mandrel 1 is thus provided and then the mandrel 1 is decomposed by heating to be taken out outside the cavity molding 4.
Inventors:
Kazuhiro Ohara
Masayuki Ishikawa
Kazunori Takaishi
Junichi Shibuya
Masayuki Ishikawa
Kazunori Takaishi
Junichi Shibuya
Application Number:
JP2000337976A
Publication Date:
August 29, 2007
Filing Date:
November 06, 2000
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H05H7/20; B21D22/16; B21D51/18; B21H1/00; (IPC1-7): H05H7/20; B21D22/16; B21D51/18; B21H1/00
Domestic Patent References:
| JP5054998A | ||||
| JP57127527A | ||||
| JP57185116A | ||||
| JP62236604A | ||||
| JP2000306697A |
Attorney, Agent or Firm:
Hisashi Hatano
Shunguchi Sekiguchi
Shunguchi Sekiguchi