Thin plate made of an Fe-Ni alloy for electronic parts, shadow m

Details Thin plate made of an Fe-Ni alloy for electronic parts, shadow m Thin plate made of an Fe-Ni alloy for electronic parts, shadow m

1997-08-19

1999-12-07

Patel, Ashok

Alloys or metallic compositions

Ferrous

Over 10 percent nickel containing

420459, 420121, 420445, 420452, 313402, H01F 104, H01J 2907

Patent

active

059978074

ABSTRACT:
A thin plate made of an Fe--Ni alloy for electronic parts, which has excellent softening property. The alloy consists essentially of, by weight, 32 to 40% Ni, not more than 0.1% Si, not more than 0.5% Mn and 5 to 50 ppm boron, and balance of Fe and unavoidable impurities. It comprises also trace elements which fulfill the following requirements: "S+O".ltoreq.150 ppm, Al.ltoreq.400 ppm, N.ltoreq.50 ppm, P.ltoreq.100 ppm, an element of IVa, Va and VIa Groups defined in the periodic table being not more than 2000 ppm in amount, and an atomic ratio of "B(atom. %)/N(atom. %)" being not less than 0.8, preferably more than 1.0. The invention also relates to a shadow mask made of the alloy and a cathode-ray tube comprising the shadow mask.

REFERENCES:
patent: 5562783 (1996-10-01), Inoue et al.
patent: 5605581 (1997-02-01), Inoue et al.
patent: 5620535 (1997-04-01), Inoue et al.
patent: 5628841 (1997-05-01), Inoue et al.

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