Control method and control system of tension in the process of rolling periodic variable-thickness strips
A strip rolling and control method technology, applied in tension/pressure control, rolling mill control device, metal rolling, etc., can solve problems such as inability to meet tension control requirements
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Embodiment 1
[0125] The relevant parameters of the system of the present invention are as follows:
[0126] A 650mm four-high reversible rolling mill is used, and the distance between the two tension gauges and the center line of the rolling mill is 2000mm; the measuring range of the coil diameter measuring instrument is 500-1600mm, and the resolution is 0.1mm; the measuring range of the tensiometer is 0-300kN. The accuracy indicators are as follows:
[0127] Response time: less than 0.01ms;
[0128] Non-repeatability: less than ±0.05% of rated output;
[0129] Hysteresis: Less than ±0.10% of rated output;
[0130] Non-linearity: Less than ±0.25% of rated output;
[0131] Temperature bias: less than ±0.005% of full scale / ℃;
[0132] Temperature: Temperature compensated to 100°C with a maximum operating temperature of 150°C.
[0133] Incoming material status: uniform thickness, steel type is IF, width 500mm, thickness 1.3mm;
[0134] Product size: thick zone thickness 1.2mm, length 30...
Embodiment 2
[0139] The relevant parameters of the system of the present invention are as follows:
[0140] A 650mm four-high reversible rolling mill is used, and the distance between the two tension gauges and the center line of the rolling mill is 2000mm; the measuring range of the coil diameter measuring instrument is 500-1600mm, and the resolution is 0.1mm; the measuring range of the tensiometer is 0-300kN. The accuracy indicators are as follows:
[0141] Response time: less than 0.01ms;
[0142] Non-repeatability: less than ±0.05% of rated output;
[0143] Hysteresis: Less than ±0.10% of rated output;
[0144] Non-linearity: Less than ±0.25% of rated output;
[0145] Temperature bias: less than ±0.005% of full scale / ℃;
[0146] Temperature: Temperature compensated to 100°C with a maximum operating temperature of 150°C.
[0147] Incoming material status: Uniform thickness, steel type is ST12, width 450mm, thickness 2mm;
[0148] Product size: thick zone thickness 1.5mm, length 20...
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