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2 228 807

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IPC

(21) (22)

Application

2002126223/02, 2002-10-02

(24)

Start date

2002-10-02

(22)

Actual filing date

2002-10-02

(45)

Published

2004-05-20

(72)

Inventor

Gorbunkov S.G.Shestakov A.V.Dolzhenkov A.Ju.Petrov S.V.Shumilov V.P.Trajno A.I.Jusupov V.S.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Zavod"

METHOD FOR DULLING KINESCOPE STRIP Russian patent published in 2004 - IPC

Abstract RU 2228807 C1

FIELD: rolled stock production, possibly dulling surfaces of cold-hardened cold rolled strips for shadow masks of kinescopes. SUBSTANCE: method for dulling kinescope strip comprises steps of rolling it in several passes between rolling rolls with textured surface; performing dulling process for two- four passes at linear pressure of rolls upon strip 1.2 - 2.1 kN/mm; at each next pass increasing linear pressure by 8 - 15%. In variant of invention before beginning dulling process providing rotation of mutually forced rolling rolls in stand with linear pressure 1.0 -1.5 kN/mm. EFFECT: stable parameters of surface roughness of made strips. 3 cl, 1 tbl, 3 ex

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RU 2 228 807 C1

Authors

Gorbunkov S.G.

Shestakov A.V.

Dolzhenkov A.Ju.

Petrov S.V.

Shumilov V.P.

Trajno A.I.

Jusupov V.S.

Dates

2004-05-20—Published

2002-10-02—Filed