Title:
LOW-MELTING POINT ALLOY FOR FUSIBLE PLUG, FUSIBLE PLUG USING THE SAME ALLOY, AND REFRIGERATOR USING THE SAME FUSIBLE PLUG
Document Type and Number:
Japanese Patent JP3630400
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a low-melting point alloy for a fusible plug that includes no toxic substances of Cd and Pb, is reliable and inexpensive, and is thus appli cable to a next-generation refrigerant, a fusible plug using the alloy, and a refrigerator using the fusible plug.
SOLUTION: For a fusible plug for use in a refrigerator with such a sealed-in refrigerant as R22, R32, R134a, R407A, R407C, R407D, R407E, propylene, butane, isoprene and propane, the low-melting point alloy comprises 4 to 10 wt.% of Sn, 56 to 63 wt.% of In and the remaining amount of Bi. For a fusible plug for use in a refrigerator with such a sealed-in refrigerant as R404 under bar A, R407B, R143 under bar a, R410A and R410B, the low-melting point alloy comprises 5 to 10 wt.% of Sn, 56 to 63 wt.% of In and the remaining amount of Bi, and has a liquidus temperature of 71°C or lower.
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Inventors:
Akira Maeda
Toshio Umemura
Yakuyo Ikoshi
Shiro Takatani
Takashi Ikeda
Sakagami Isao
Toshio Umemura
Yakuyo Ikoshi
Shiro Takatani
Takashi Ikeda
Sakagami Isao
Application Number:
JP2000022686A
Publication Date:
March 16, 2005
Filing Date:
January 31, 2000
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F16K17/38; C22C28/00; F25B49/02; (IPC1-7): F25B49/02; C22C28/00; F16K17/38
Domestic Patent References:
| JP6325670A | ||||
| JP8150493A | ||||
| JP598229A | ||||
| JP10184960A | ||||
| JP64572B2 | ||||
| JP62165080A |
Attorney, Agent or Firm:
Michiteru Soga
Michiharu Soga
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Masahisa Hase
Koji Fukui
Michiharu Soga
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Masahisa Hase
Koji Fukui