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伍德合金 (15606 views - Material Database)

伍德合金(Wood's alloy)是一種低熔點合金,又稱作彎管合金(Bendalloy)或是希洛彎管(Cerrobend),熔點為70℃。常被用作消防自動灑水器的灑水原件。成分為50%的鉍,26.7%的鉛,13.3%的锡和10%的镉。金屬在常溫之所以是固體,是因為原子間可以依一定的排列產生穩定的晶格。伍德合金由於各種金屬原子半徑有所差異,較不易形成穩定的晶格,因此熔點大幅的下降。
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伍德合金

伍德合金

伍德合金(Wood's alloy)是一種低熔點合金,又稱作彎管合金(Bendalloy)或是希洛彎管(Cerrobend),熔點為70℃。常被用作消防自動灑水器的灑水原件。成分為50%的,26.7%的,13.3%的和10%的。金屬在常溫之所以是固體,是因為原子間可以依一定的排列產生穩定的晶格。伍德合金由於各種金屬原子半徑有所差異,較不易形成穩定的晶格,因此熔點大幅的下降。

應用

低熔點合金、自動消防灑水器、熔斷式保險絲

特性

因成分中含有鎘及鉛,故具有一定的毒性,可導致重金屬中毒並危害中樞神經。使用時應避免直接接觸,或是戴上手套操作,且不可任意排放,任意排放自然生活環境恐遭相當嚴重的汙染。

參見


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