Process for producing Fe-Ni alloys used for electron gun parts

摘要

Disclosed is a process for producing Fe-Ni alloys used for electron gun parts. The alloy consists of: all by weight, 30 to 55% of Ni; 0.05 to 2.00% of Mn; 0.001% to 0.050 of S; and the balance of Fe and inevitable impurities. The process substantially consists of melting, casting, hot working, cold rolling and annealing. The Fe-Ni alloy satisfies 0.0005<=((%Mn)*(%S))<=0.0100. The hot working is carried out at a temperature T defined by the following equation.