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    • 8. 发明授权
    • Alloy for a fusible plug and a fusible plug
    • 合金用于可熔插头和易熔插头
    • US09175782B2
    • 2015-11-03
    • US11667959
    • 2004-11-24
    • Rikiya KatoTetsuro KikuchiMutsumi Deguchi
    • Rikiya KatoTetsuro KikuchiMutsumi Deguchi
    • F16K17/38
    • F16K17/383
    • ProblemA conventional alloy for a fusible plug contained harmful elements such as Cd or Pb, so there was a concern of pollution by these harmful elements. The present invention provides a fusible plug which does not contain the harmful components Cd or Pb, with which the alloy is not forced out of the fusible plug even when used for long periods as a safety device for refrigeration equipment, and which has a high mechanical strength such as creep strength.Means for Solving the ProblemA fusible plug is used which employs a fusible alloy consisting essentially of 0.1-2.0 mass percent of Sn, 31-37 mass percent of Bi, and a remainder of In, the alloy melting at approximately at 70-75° C. A fusible plug is used which employs an alloy consisting essentially of 0.05-0.4 mass percent of Zn, 47-55 mass percent of Bi, and a remainder of In, the alloy melting at approximately 90-95° C.
    • 问题用于易熔塞的常规合金包含有害元素如Cd或Pb,因此受到这些有害元素污染的担忧。 本发明提供一种不含有害成分Cd或Pb的可熔插塞,即使长时间作为制冷装置的安全装置,合金也不会被迫从易熔丝塞出来,并且具有高机械性 强度如蠕变强度。 解决问题的手段使用易熔合金,其熔融金属基本上由0.1-2.0质量%的Sn,31-37质量%的Bi和余量的In组成,熔融约为70-75℃ C.使用可熔插塞,其使用基本上由Zn的0.05-0.4质量%,Bi的47-55质量%和In的剩余部分组成的合金,在约90-95℃熔化。