Color picture tube shadow mask material

Details Color picture tube shadow mask material Color picture tube shadow mask material

1986-04-18

1988-06-28

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

H01J 2907

Patent

active

047541881

ABSTRACT:
A color picture tube shadow mask material is made of an alloy consisting of 30 to 45 wt. % of Ni, 0.1 to 5.0 wt. % of V, and the balance essentially Fe. A color picture tube having a shadow mask consisting of this material is also prepared. The alloy has an average thermal expansion coefficient of 6.times.10.sup.-6 /.degree.C. or less in a temperature range of 20 to 100.degree. C., and an elasticity coefficient of 15,000 kgf/mm.sup.2 or more.

REFERENCES:
Japanese Patent Laid-open Specification No. sho 50-58977.
Japanese Utility Model Publication No. sho 55-52610.

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