| 摘要 |
PROBLEM TO BE SOLVED: To obtain an alloy sheet for electron gun electrode, capable of meeting the recent demand for higher press blanking characteristic. SOLUTION: The Fe-Cr-Ni alloy has a composition consisting of, by weight, 15-20% Cr, 9-15% Ni, <=0.12% C, 0.005-1.0% Si, 0.005-2.5% Mn, <=0.03% P, 0.0010-0.0100% S, <=2.0% Mo, 0.001-0.2% Al, <=0.005% O, <=0.1% N, <=0.05% Ca, <=0.02% Mg and the balance Fe with inevitable impurities. When this Fe-Cr- Ni alloy is rolled into a plate of 0.1-0.7 mm thickness, the average spacing, in a thickness direction, of inclusions of 10-<100μm length in the cross section in a direction parallel to rolling direction becomes <=100μm and also the average spacing of inclusions of <10μm length becomes <=20μm.
|
