Control method of speed and acceleration of continuous hot rolling roughing rolling unit
A technology of acceleration control and roughing unit, which is applied in acceleration control, variable acceleration control, variable speed of hot continuous rolling roughing unit controlled by computer system, and speed of hot continuous rolling roughing unit. Issues such as slippage of transitional specifications and impact on output
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[0036] Embodiment 1. Speed and acceleration control method of rough rolling mill of hot continuous rolling
[0037] The speed and acceleration control method of the roughing hot rolling mill in this example is a method of automatically controlling the speed and acceleration of the roughing hot rolling mill by a computer system. Usually, the specific steel rolling process is determined by figure 1 Indicate that in figure 1 Middle: 1 is a heating furnace (4), 2 is a high-pressure water descaling box, 3 is a roughing vertical rolling mill (VE0), 4 is a roughing flat rolling mill (R0), 5 is a heat preservation cover, and 6 is a drum Type cutting head flying shear, 7 is the finishing stand (7 plus stands), 8 is the crown gauge, 9 is the width gauge, 10 is the thickness gauge, 11 is the flatness gauge, and 12 is the coiler. The method for controlling the speed and acceleration of the hot tandem rough rolling unit is: the second-level computer realizes or completes the calculation meth...
Example Embodiment
[0068] Embodiment 2. The speed and acceleration control method of the rough rolling mill of hot continuous rolling
[0069] The speed and acceleration control method of the roughing hot rolling mill in this example is different from the speed and acceleration control method of the roughing hot rolling mill in the first embodiment: the speed and acceleration control method of the roughing hot rolling mill in this example is based on rolling There are three small implementation examples for different steel types:
[0070] Example 1. In this example, the speed and acceleration control method of the rough rolling mill of hot continuous rolling is carbon steel (including all soft steel and low alloy steel). V in the variable speed formula (1) of this example 0 (N) Crawling speed function, that is, the biting speed of each pass of the strip. When the rolled steel is carbon steel (including all soft steel and low alloy steel), the crawling speed function is related to each pass n, The sp...
Example Embodiment
[0101] Embodiment Three: Speed and acceleration control method of hot continuous rolling rough rolling mill
[0102] The speed and acceleration control method of the roughing hot rolling mill in this example is different from the speed and acceleration control methods of the roughing hot rolling mill in the first and second embodiments: the speed and acceleration of the roughing hot rolling mill in this example The control method has the following three small implementation examples according to different rolling steel types:
[0103] Example 1. In this example, the speed and acceleration control method of the rough rolling mill of hot continuous rolling is carbon steel (including all soft steel and low alloy steel). V in the variable speed formula (1) of this example 0 (N) Crawling speed function, that is, the biting speed of each pass of the strip. When the rolled steel is carbon steel (including all soft steel and low alloy steel), the crawling speed function is related to eac...
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