Additional given control method of hot continuous rolling silicon steel movable sleeve
A control method and hot continuous rolling technology, which is applied in the field of metallurgical steel rolling, can solve problems such as slow loop adjustment, poor response speed, and poor quality of strip steel products, so as to reduce product quality problems, reduce abnormal downtime, and improve product qualification. rate effect
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Embodiment 1
[0034] When the given moment of the strip steel is greater than the actual moment of the strip steel (that is, the deviation of the strip steel moment is greater than zero), it indicates that the looper of the strip steel has a false loop, and the greater the deviation between the two, the more serious the false loop is. There are five loopers from 0# to 5# in the hot rolling and finishing mill. Take the silicon steel 60 specification 2.6mm*1250mm 5# looper as an example:
[0035] When the looper roller self-gravity moment M W Is 4500; strip gravity moment M B Is 1100; strip tension moment M T Is 7300; strip bending moment M D is 200;
[0036] Strip given moment M REF = M W +M B +M T +M D =13100.
[0037] If there is a false loop in the looper, the measured value of the pressure sensor in the rodless cavity of the hydraulic cylinder P PIS 5.4*10 6 , hydraulic cylinder rodless chamber area A PIS is 0.0165; the measured value P of the pressure sensor in the rod cavit...
Embodiment 2
[0044] There are five hydraulic loopers from 0# to 5# in the hot rolling and finishing mill. Take the silicon steel 80 specification 2.6mm*1250mm 4# looper as an example:
[0045] When the looper roll When the looper roll self-gravity moment M W Is 4500; strip gravity moment M B Is 1700; strip tension moment M T Is 8800; strip bending moment M D is 300;
[0046] Strip given moment M REF = M W +M B +M T +M D =15300.
[0047] If there is a false loop in the looper, the measured value of the pressure sensor in the rodless cavity of the hydraulic cylinder P PIS 5.4*10 6 , hydraulic cylinder rodless chamber area A PISis 0.0165; the measured value P of the pressure sensor in the rod cavity of the hydraulic cylinder ROD 3.9*10 6 ; Rod chamber area A ROD is 0.011; the force arm LH of the actual pressure F of the hydraulic cylinder is 321mm, then the actual pressure of the hydraulic cylinder F=46106, and the actual moment M of the strip steel is obtained F =14800;
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