High Precision High Speed S6 High Reversible Rolling Mill Cold Rolling Mill Machine

High Precision S6 High Reversible Cold Rolling Mill Machine

6-Hi cold rolling mill is widely used in cold rolled plain carbon steel,low alloy steel,and speed up to 600m/min

high productivity of six-roll cold rolling mill, excellent products with tolerance of strip shape and strip thickness.

Characteristics:

1. Can roll wide, thin steel strip
2. Less rolling passes and shorter rolling time
3. More total reduction can be achieved without intermediate annealing
4. Smaller thickness variation
5. The cold rolled strip is of good flatness
6. Roller housing stands geometry optimizes deformation
7. Replaceable integral components of long stroke hydraulic cylinder
8. Fast reduction speed
9. Large control power
10. Hydraulic cylinder for Intermediate roller positive bending is fixed on mill stand
11. Fast roll changing device shortens the roll changing time of working roll and intermediate roll.
12. The rolling passline is automatically adjusted, and the roller diameter range is large

Configuration

1. Hydraulic AGC system is controlled by two-stage computer. It not only has the functions of constant roll gap, constant rolling force, thickness pre-control/monitoring, but also has tension AGC.
2. The main rolling mill and the left and right coiler are driven by a complete set of Siemens electronically controlled direct current motor. (Mixed-mounted structure), SCR power supply
3. The rolling mill has hydraulic pressure system, hydraulic pumping regulation system, side push regulation system, positive and negative bending roll of intermediate roll, process lubrication system and equipment lubrication system
4. Left and right coilers adopt large tension solid drum, tension digital control
5. The production process interlocking and fault alarm of the unit are controlled by programmable logic controller (PLC) to realize the automation of the production process.
6. The rolling mill has full hydraulic pressure. It has the control functions of full stroke second flow control, deviation adjustment control, automatic preloading control, thickness pre-control AGC, thickness monitoring AGC, tension/speed AGC, acceleration and deceleration AGC compensation control, roll eccentricity compensation, and rolling process database, data display and operation control, product quality tracking function, high-speed rolling data automatic recording, automatic report generation, fault alarm and recording. Recording and other process management functions.
7. Detection, display and fault alarm system of process parameters and key equipment parameters
8. Emulsion cooling system and precision filtration system are used for process lubrication.
9. Safety protection systems such as overload protection, strip breakage protection and emergency parking are installed in rolling mills.
10. Hard tooth face herringbone gears (grade 5 accuracy) are used for left and right coilers and main machines. SKF, FAG, TIMKEN are used for high-speed shaft bearings and Harbin/Wafangdian/Luoyang Bearing Factory is used for low-speed shaft bearings.
11. The unit adopts two-stage computer control to realize the production process control of the unit. The unit has rolling schedule calculation, pass distribution, regulation and parameter optimization. Real-time process parameters and key detection, display and alarm
12. Quick Adjustment of Rolling Line Elevation by Inclined Wedge and Step
13. Quick roll change of work roll intermediate roll (about 8 minutes)
15. The unit adopts imported laser velocimeter to realize second flow control and improve the rate of finished product, while retaining encoder to measure speed
16. The unit tension is measured directly by imported tensiometer, closed-loop control and digital display
17. The main components of high-pressure AGC system, bending roll system and side roll system adopt imported products; the components of low-pressure hydraulic system adopt well-known products produced by domestic imported technology.
18. The unit thickness is measured by X-ray thickness gauge made in China, the encoder is P+F from Germany, and the proximity switch is made by SICK from Germany.
19. The work roll is positioned radially by the side roll support, which enhances rigidity and prevents side bending. Axis is positioned by end support door and controlled by cylinder, which is convenient for on-line roll change of finished product pass and meets the requirements of stainless steel rolling.
20. Oil-air lubrication for backing bearing of roller bearing

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