Bending device for the working rolls of a hot-rolling frame

Metal deforming – By use of roller or roller-like tool-element – With carrier for roller-couple or tool-couple

Reexamination Certificate

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Details

C072S245000

Reexamination Certificate

active

06993951

ABSTRACT:
A hot-rolling stand including blocks arranged in the stand windows and having hydraulic piston cylinder units provided as bending devices which are able to transfer bending forces via guide elements onto the chocks of the working rolls. For each block a double-acting hydraulic piston cylinder unit is provided whose two ends are connected with the guide elements. The guide elements have guide that engage both sides of the free ends of noses of the working roll chocks so as to permit axial movement of the working rolls.

REFERENCES:
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patent: 4736609 (1988-04-01), Schiller et al.
patent: 4907439 (1990-03-01), Diel et al.
patent: 5090228 (1992-02-01), Schmiedberg et al.
patent: 5638716 (1997-06-01), Jonen
patent: 3331 055 (1985-03-01), None
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patent: 4308743 (1994-09-01), None
patent: 195 36 042 (1997-04-01), None
patent: 0623401 (1994-11-01), None
Patent Abstracts of Japan, vol. 009, No. 046 (M-360), Feb. 27, 1985 & JP 59185505 A (Ishikawajima Harima Jukogyo KK), Oct. 22, 1984.
Patent Abstracts of Japan, vol. 008, No. 284 (M-348), Dec. 26, 1984 & JP 59 153505 A (Ishikawajima Harima Jukogyo KK), Sep. 1, 1984.
Patent Abstracts of Japan, vol. 010, No. 211 (M-501), Jul. 24, 1986 & JP 61 052914 A (Ishikawajima Harima Jukogyo KK), Mar. 15, 1986.

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