Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1991-09-16
1993-04-20
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 31, 72234, 364472, 364576, B21C 5100, G06G 719
Patent
active
052031888
ABSTRACT:
A system and method for monitoring a rolling mill which includes a data acquisition module that continually acquires, from mill instrumentation computers, time domain data relating to finished product gauge, entering product gauge, separating forces occurring at each roll stand in the mill, and RPMs of each roll in the roll stands over a calculated data acquisition time period. A monitoring CPU transforms the acquired data into the frequency domain in response to the rolls operating at an approximately constant speed over the data acquisition time period. A frequency spectrum correlation analysis is performed with the frequency domain data in order to identify the specific contributions to frequency amplitudes occurring in the finished product gauge frequency domain data. A determination is then made as to whether the identified frequency amplitudes exceed predetermined thresholds which correspond to a predetermined warning level and a maximum tolerance level of the finished product. A graphical display of those mill components contributing to near and out of tolerance finished product is provided.
REFERENCES:
patent: 3694636 (1972-09-01), Smith, Jr.
patent: 3889504 (1975-06-01), Ichiryu et al.
patent: 3928994 (1975-12-01), Ichiryu et al.
patent: 4038848 (1977-08-01), Ichiryu et al.
patent: 4060716 (1977-11-01), Pekrul et al.
patent: 4222254 (1980-09-01), King, Jr. et al.
patent: 4691547 (1987-09-01), Teoh et al.
patent: 4745556 (1988-05-01), Turley
patent: 4763273 (1988-08-01), Anbe et al.
patent: 4872245 (1989-10-01), Kawasaki et al.
patent: 4907433 (1990-03-01), Larson et al.
patent: 4910985 (1990-03-01), Ballyns
patent: 4936132 (1990-06-01), Kato et al.
Barnes, et al., "Close tinplate gage tolerance through low-cost technological improvements," Iron and Steel Engineer (Jan. 1988), pp. 49-55.
Cory, Jr., et al., "Roll eccentricity monitoring for strip quality control," Iron and Steel Engineer (Feb. 1990), pp. 24-26.
Ginzburg, Roll Eccentricity, pp. 22-25, Int. Rolling Mill Consultants Inc., Pittsburgh, Pa. 1990.
Osgood Peter N.
Simmons Thomas E.
Larson Lowell A.
Morgan Construction Company
Schoeffler Thomas C.
LandOfFree
System and method for monitoring a rolling mill does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for monitoring a rolling mill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for monitoring a rolling mill will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1517999