Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1978-12-28
1980-07-29
Mehr, Milton S.
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72 16, 72 20, 72245, B21B 3702, B21B 3708
Patent
active
042144647
ABSTRACT:
There is provided hydraulically-operated work roll gap control cylinders forming a closed-circuit hydraulic system during rolling, and there are also provided hydraulically-operated backup roll control cylinders to which is connected a rolled product thickness gauge in order to keep constant the work roll gap depending on the pressure existing in the closed-circuit hydraulic system. The apparatus is provided with a hydraulic volume compensator operating in conjunction with the closed-circuit hydraulic system of work roll gap control and is also provided with a logic module connected to said compensator. The volume of fluid contained in the closed-circuit system changes in response to the corrective signal characteristic of a deviation of the strip thickness from the specified gauge. The passage of the signal to the hydraulic volume compensator is cleared or blocked by a special transportation lag unit.
REFERENCES:
patent: 3416341 (1968-12-01), Dey et al.
patent: 3464245 (1969-09-01), Dowsing et al.
Alexandrov Valery M.
Bauer Alfrid G.
Braun Georgy A.
Chabanov Alim I.
Chuguev Dmitry I.
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