Temperature coefficient of electric resistance to be small furthermore melting point is low the alloy and its manufacturing method and uses that the high stability electric resistor or the eddy current type displacement sensor

摘要

PURPOSE:To obtain an alloy having less change of electric resistance for the temp. and having low melting point by heating the alloy in which Co, Fe and Au are specified in a non-oxidizing atm. under the prescribed conditions. CONSTITUTION:The alloy consisting of, by weight, 0.01-10% Co, 0.01-8% Fe and the balance Au is refined. Said alloy is cast and forged and is thereafter worked into a wire material or plate material to form the desired shape. Said alloy is then heated for 2sec-100hr at 200-800 deg.C in the non-oxidizing atm., etc., by which the electric resistant alloy having =1,000ppm/ deg.C temp. coefficient of specific electric resistance and having =1,055 deg. melting point is obtd.