Comprehensive control method for pressure position of hot continuous rolling rolled side guide plate
A comprehensive control and pressure control technology, applied in tension/pressure control, rolling mill control devices, metal rolling, etc., can solve the problems of short service life of the side guide plate, wear of the coiling side guide plate, scratches on the edge of the strip, etc. Achieve the effect of improving the stability of production operation, shortening the replacement cycle and reducing downtime
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[0080] Example 1:
[0081] In the embodiment of the present invention, a method for comprehensively controlling the pressure position of the hot strip coiling side guide is applied to the production of 3.5*1550mm cold-rolled plain steel (hot yield strength is about 150Mpa), including the following steps:
[0082] (1) Strip head shape detection:
[0083] Detect the side deflection of the strip head and the offset value of the strip body of the exit strip of the finishing mill. Specifically, use the finish rolling exit width gauge to obtain the finish rolling exit transverse vibration curve of the strip steel. The transverse vibration curve is like figure 2 Shown
[0084] According to the horizontal vibration curve of the finishing rolling exit, the maximum value Dev of the horizontal vibration within 50m of the strip head can be measured max And minimum Dev min , And within the range of 50m to 100m of strip steel (corresponding figure 2 11:52:30 time to 11:52:40 time) mean value Dev...
Example Embodiment
[0110] Example 2:
[0111] In the embodiment of the present invention, a method for comprehensively controlling the pressure position of the coiling side guide plate for hot continuous rolling is applied to the production of automotive beam steel with a finished product size of 8*1500mm (the yield strength in hot state is about 355Mpa), and includes the following steps:
[0112] (1) Strip head shape detection:
[0113] The horizontal vibration curve of the finish rolling exit of this variety of strip steel is as follows Figure 4 As shown, the maximum value Dev of the transverse vibration within 50m of the strip head can be calculated according to the transverse vibration curve of the finish rolling exit max And minimum Dev min , And within the range of 50m to 100m of strip steel (corresponding Figure 4 From 12:08:35 to 12:08:55) the average Dev of horizontal vibration ave ; Take Dev max -Dev ave With Dev min -Dev ave The larger difference in the middle value is taken as the sid...
Example Embodiment
[0130] Example 3:
[0131] In the embodiment of the present invention, a method for comprehensively controlling the pressure position of the coiling side guide plate for hot continuous rolling is applied to the production of wheel steel with a finished product specification of 4*1300mm (hot yield strength is about 500Mpa), including the following steps:
[0132] (1) Strip head shape detection:
[0133] The horizontal vibration curve of the finish rolling exit of this variety of strip steel is as follows Image 6 As shown, the maximum value Dev of the transverse vibration within 50m of the strip head can be calculated according to the transverse vibration curve of the finish rolling exit max And minimum Dev min , And within the range of 50m to 100m of strip steel (corresponding Image 6 11:58:40 time to 11:58:53 time) the average Dev of horizontal vibration ave ; Take Dev max -Dev ave With Dev min -Dev ave The larger difference in the middle value is taken as the side deflection o...
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