| 摘要 |
PURPOSE:To obtain a low m.p. alloy for a temp. fuse having a reduced melting temp., improved workability and endurance by adding a small amount of Pb to a Bi-In alloy. CONSTITUTION:This low m.p. alloy for a temp. fuse consists of 26-32wt% Bi, 8-12wt% Pb and the balance In and has 71-78 deg.C melting temp. In is alloyed with Bi to reduce the melting temp. in some degree, and the m.p. is further reduced by adding said small amount of Pb. The low m.p. alloy is quickly broken by melting and has an accurate working temp. Cd as a harmful metal is not contained in the alloy. The alloy undergoes no deterioration even under severe conditions and can maintain its stable quality for a long period.
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