Process for producing steel strip material for use in manufactur

Details Process for producing steel strip material for use in manufactur Process for producing steel strip material for use in manufactur

1979-10-11

1982-01-12

Combs, Ervin M.

Metal deforming

By use of roller or roller-like tool-element

With modification or control of temperature of work, tool or...

291635R, 29557, 72364, 72365, 72700, B21B 100, B21B 302

Patent

active

043098860

ABSTRACT:
Low carbon steel strip is cold rolled with rolling reduction of 15 to 35% in final cold rolling step and annealed in form of tight coil at temperature of 520 to 600.degree. C. to provide product having grain size number of 4 to 7 and coercive force of not greater than 2.0 Oersted as measured with initial magnetization field of 25 Oersted. The product is especially suitable for manufacturing shadow mask of Braun tube for color TV.

REFERENCES:
patent: 3909928 (1975-10-01), Sato et al.
The Making Shaping and Treating of Steel, U.S Steel, 8th Edition, 1964, pp. 920, 921.

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