ALLOY FOR FUSIBLE PLUG AND FUSIBLE PLUG

[PROBLEMS] A conventional alloy for a fusible plug contains a harmful element such as Cd or Pb, and thus has a fear of causing pollution due to the harmful element. The object of the present invention is to provide a fusible plug wherein it does not contain Cd nor Pb, which is a harmful component, t...

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Bibliographische Detailangaben
Hauptverfasser:	KIKUCHI TETSURO, DEGUCHI MUTSUMI, KATO RIKIYA
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	[PROBLEMS] A conventional alloy for a fusible plug contains a harmful element such as Cd or Pb, and thus has a fear of causing pollution due to the harmful element. The object of the present invention is to provide a fusible plug wherein it does not contain Cd nor Pb, which is a harmful component, the alloy is not squeezed out from the fusible plug even in the use for a long period of time as a safety device of a refrigeration apparatus, and it exhibits high mechanical strength such as good creep characteristics. [MEANS FOR SOLVING PROBLEMS] An fusible plug which uses an alloy containing 0.1 to 2.0 mass % of Sn, 31 to 37 mass % of Bi and the balanced amount of In and fusing at about 70 to 750C; and an fusible plug which uses an alloy containing 0.05 to 0.4 mass % of Zn, 47 to 55 mass % of Bi and the balanced amount of In and fusing at about 90 to 950C.