Method for regulating the pull in continuous rolling trains and

Details Method for regulating the pull in continuous rolling trains and Method for regulating the pull in continuous rolling trains and

1988-05-13

1990-07-17

Lall, Parshotam S.

Boots, shoes, and leggings

364472, 364158, 72 29, G06F 1546, B21B 3706

Patent

active

049425439

ABSTRACT:
Method to regulate the pull in continuous rolling trains, in which the value of a reference speed (V) is monitored in conditions where a bar is substantially free (not under drawing action) while said bar is being rolled, in which the measurement of the value of the reference speed (V) when the bar is substantially free of pull is obtained by means of variation of the speed (V) of the motor of the involved stand by an increase (x1) of the speed (V), by a return thereafter to the reference value of the speed (V) and by a reduction (x2) of the speed, followed by a final return to the reference speed (V) or realigned speed (V'), while monitoring the formation of a microloop on the rolled product. Rolling train for carrying out the above method, comprising for each stand an assembly to sequence a change of speed connected to a speed cascade control assembly and to an incremental assembly.

REFERENCES:
patent: 3553993 (1971-01-01), Frostick
patent: 3811304 (1974-05-01), Gorker
patent: 4089196 (1978-05-01), Kondo et al.
patent: 4408470 (1983-10-01), Fromont
patent: 4495587 (1985-01-01), Plante et al.
patent: 4513594 (1985-04-01), Ginzburg et al.
patent: 4576027 (1986-03-01), Yoshida et al.
patent: 4662202 (1987-05-01), Lambert
patent: 4706479 (1987-11-01), Tominaga
patent: 4771621 (1988-09-01), Sato
patent: 4776192 (1988-10-01), Oda et al.
Proceedings of the 8th AICA Congress, Simulation of Systems, 23rd-28th Aug. 1976, Delft, pp. 747-753, T. Yokota et al., "Hybrid Simulation of Tension Control System for Hot Tandem Mills".
AEG-Mitteilungen, vol. 56, No. 1, 1966, pp. 54-57, Berlin, DE; K. Hertlein: "Regeleinrichtung zum zug- und druckfreien Walzen in Knuppel- und Feinstahlstrassen".
Cahier d'Informations Techniques de la Revue de Metallurgie, vol. 79, No. 5, May 1982, pp. 407-417, Paris, FR; C. Boisdon et al.: "Reglage Automatique de la Traction Minimal Entre . . . Petits Fers".

Affiliated with

Also associated with

Rating

Method for regulating the pull in continuous rolling trains and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for regulating the pull in continuous rolling trains and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for regulating the pull in continuous rolling trains and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-98978