| 摘要 |
<p>Alloy for electrical resistance wire e.g. for resistance boxes potentiometers etc. comprises 0.1-10% Ga, 8-14% Mn balance Cu and may also contain 0.1-0.5% Ge, 0.1-1.5% In, 0.1-5% Al, 0.1-5% Ni separately or together. The Ga addition ensures a low temp. coefft. low emf from the thermocouple formed with Cu, a resistance increase on corrosion of the alloy (fail safe device) and ductility.</p> |
