Title:
【発明の名称】極低温用蓄冷材およびそれを用いた極低温蓄冷器と冷凍機
Document Type and Number:
Japanese Patent JP3015571
Kind Code:
B2
Abstract:
PURPOSE:To provide a cryogenic cold accumulation material and a cold accumulator using the same in which gaps among cold accumulation substance particles can be stably held even if a stress, a thermal impact, etc., is applied to gas flow during operation and performance of the accumulator can be maintained for a long period. CONSTITUTION:A cryogenic cold accumulation material has particles of cold accumulation substance having a specific heat of 0.1j/cm<3>K or more at 30K or lower such as magnetic intermetallic compound containing Pb, Pb alloy and rare earth element. The particles of the substance are fixed thereamong by sintering the substance at a temperature lower than its melting point. A cryogenic cold accumulator uses the sintered material at least as part of the material.
Inventors:
Naoyuki Ari
Hideki Yamamiya
Nobuo Hayashi
Tomohisa Arai
Hideki Yamamiya
Nobuo Hayashi
Tomohisa Arai
Application Number:
JP1161492A
Publication Date:
March 06, 2000
Filing Date:
January 27, 1992
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
F25B9/00; B22F3/10; C22C28/00; F28D20/00; (IPC1-7): F25B9/00; B22F3/10; C22C28/00
Domestic Patent References:
| JP6355906A | ||||
| JP60204852A | ||||
| JP6250423A | ||||
| JP2141555A | ||||
| JP58151438A | ||||
| JP2309159A | ||||
| JP3174486A | ||||
| JP4231401A |
Attorney, Agent or Firm:
Saichi Suyama