Hydraulic AGC rolling mill is becoming more and more popular in metal strip rolling industry for its high precision, high speed and high automation.
1.Small inertia, fast reaction and high sensitivity guarantee high precision rolling, thickness deviation can be controlled within 1% and increase the percentage of quality strip.
2.hydraulic system fast and precise response can effectively remove the interference of frequently periodic change of roll gap caused by roll eccentricity。
3.Collect , Record and Display Rolling Process parameters including faults. Good HMI Dialogue.
4.Rolling speed can be very high, like 240m/min, 480m/min, 600m/min.
5.Hydraulic AGC high precision is especially obvious on medium and large width rolling mill.
Thickness tolerance in longitude: |
|
Stable rollin |
≤±2%δ |
Acceleration or Deceleration rolling |
≤±3%δ |
Max rolling torque:
90 KN.m for big speed reducing ratio
Max rolling speed:
300m/min for big speed reducing ratio, 600m/min for small speed reducing ratio
max uncoiling speed: 200 m/min
Max recoiling speed:
330m/min for big speed reducing ratio, 660m/min for small speed reducing ratio
Uncoiling tension:max 40kN
Max rolling pressure:7000 KN
Recoiling tension:10-70KN for big speed reducing ratio, 5-35KN for small speed reducing ratio
Work roller: φ185/φ170×850mm
Middle roller: φ320/φ290×850mm, drive middle rollers
Backup roller: φ760/φ730×820mm
Uncoiling mandrel diameter(expand,compact):φ520/φ470mm
Recoiling mandrel diameter(expand, compact):φ508/φ485mm
Rolling stand section:450×550=247500mm2
Positive/negative roller bending force(each side of each work roller): +150kN/-80kN
Positive roller bending force(one side of each middle roller):300kN
Transverse transfer of middle roller:
+150mm for upper middle roller, -150mm for lower middle roller
Systematic pressure of general low-voltage hydraulic system: 10MPa
Systematic pressure of roller bending hydraulic system:18.5MPa
Systematic pressure of Hydraulic :23MPa
Electric control system: X-ray thickness gauge system, hydraulic AGC system, PLC and industrial computer, motor drive cabinets and operator control panels.