Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1980-07-09
1983-07-12
Husar, Francis 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 13, 72 17, 72201, B21B 3710, B21B 2706
Patent
active
043923674
ABSTRACT:
Process and apparatus for the cold rolling of ferrous metal or nonferrous metal strip, e.g. steel or aluminum strip, in which the strip is passed at a high rate through a multiplicity of cold rolling stands and a coolant is dispensed from nozzles directed against the rolls or the band in the region of the rolling gaps. According to the invention, the planarity of the strip is measured immediately downstream (in the direction of strip movement) of the last rolling stand and deviations from planarity are determined and converted into control signals. The planarity measurement signal is compared with a deviation-maximum signal processor until the measured deviation reaches a first threshold within the range to maximum. Only the coolant spray from the nozzles of the last stand are controlled in a planarity-restoring sense. When the measured deviation exceeds this threshold at least the nozzles of the penultimate stand are controlled.
REFERENCES:
patent: 3334508 (1967-08-01), Martin
patent: 3514984 (1970-06-01), Cook
patent: 3802237 (1974-04-01), Albensi et al.
patent: 3934438 (1976-01-01), Arimura et al.
patent: 3990284 (1976-11-01), Barten
patent: 4197727 (1980-04-01), Ikemi et al.
patent: 4262511 (1981-04-01), Boisvert et al.
Dubno Herbert
Husar Francis S.
Ross Karl F.
Scherer Jonathan L.
Schloemann-Siemag Aktiengesellschaft
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