Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1995-07-28
1997-07-15
Larson, Lowell A.
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72 101, 72 137, 723652, B21B 3718
Patent
active
056472374
ABSTRACT:
In a previous process, the influence of roll eccentricities on the output thickness of the rolled material in a roll stand is suppressed by simulating the output signal of an oscillator and supplying this value to a position or thickness control for the roll stand, where the frequency of the output signal is set according to the roll rotation speed. In the process according to the invention, the amplitude and phase of the output signal are set so that the exit thickness of the rolled material is measured with a measuring delay in relation to the thickness reduction in the roll gap. A difference signal is generated from the delayed roll screw-down signal and a measured thickness signal multiplied by the sum of one and the quotient of the rigidity of the rolled material and the roll stand. The output signal of the oscillator is corrected according to the difference between the output signal and the difference signal. The output signal is phase shifted by the amount of measurement delay for a forward slip.
REFERENCES:
patent: 4222254 (1980-09-01), King, Jr. et al.
patent: 4531392 (1985-07-01), Puda
patent: 4648257 (1987-03-01), Oliver et al.
patent: 4691547 (1987-09-01), Teoh et al.
patent: 5036265 (1991-07-01), Weihrich et al.
Patent Abstracts of Japan, 80 M 296, JP-59-16616 A, Jan. 27, 1984.
Berghs Andre
Jungkunz Clemens
Steidl Siegbert
Troendle Hans-Peter
Wohld Dietrich
Larson Lowell A.
Schoeffler Thomas C.
Siemens Aktiengesellschaft
LandOfFree
Process for suppressing the influence of roll eccentricities does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for suppressing the influence of roll eccentricities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for suppressing the influence of roll eccentricities will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1484691