1450mm 6-Roll Reversing Cold Rolling Mill
1. Its usage
The 6-High Reversing Steel Cold Rolling Mill can work with he raw material
thickness1.2mm-4.5mm pickling hot rolled steel plate coil Q195,Q235, 08AI,SPHC, SPHD, SPHE, the final product can be thickness 0.18mm-2.0mm cold rolled steel coil. The working coil width can be from 650mm to1750mm. We can customize the machine according to your requirements.

2. Product Application

the cold rolled steel sheet or strips coil made by our 6 hi reversible steel cold rolling mill can be widely used in the building, construction ,steel roofing and wall ,  car and vehicle body, steel furniture,
appliance,  container for oil and gas transportaion, jerry-cans, tank, etc.

3. Technical data of the 1450mm 6-High Reversing Cold Rolling Mill

Specification  Data

1)Specification   of Rolling Mill: F1250/F450/F370x1450mm
2)Max   Rolling Pressure:18000KN
3)Max   Rolling Torque:115KN.m
4)Max   Rolling Speed:1200m/min.
5)Max   threading speed:30 m/min.
6)Max   uncoiling speed:500m/min.
7)uncoiling tension:78~8 KN
8)Coiling tension:180~18KN(gear I)
                          120~12KN(gear II)
9)Hydraulic system working pressure:12MPa
3.Product Program
Standard of raw material
Material quality:Picking hot rolled steel coil Q195, Q239, 08AI, SPHC, SPHD, SPHE
Thickness:1.2mm-4.5mm
Width:800mm-1300mm
Rolling diameter(interior /exterior):Φ610mm/Φ2000mm
The maximum rolling weight:26 tons
 
4.Standard of final products
 
 Thickness:0.18-2.0mm
Width:800mm-1300mm
Rolling diameter(interior/exterior):Φ508/Φ2000mm
finished   product precision -Longitudinal thickness tolerance(rolling at stable speed):  < =   ±1.0%d(d>0.5mm)
shape tolerance:< =40I
The maximum rolling weight:26 tons

1450 6-roll reversible cold rolling unit is the cold rolling production line with designed annual output of 225 thousand tons and adopts UCM-type single-stand mill. Roll pickled hot rolled coils into cold hard coils. The unit is equipped with hydraulic AGC. The work roll is equipped with positive and negative bending and subsection cooling. The intermediate roll is equipped with the positive bending and moving, and the front and rear frames are equipped with double X-ray thickness gauge, double-laser velocimeter, etc. Characteristics:
1. Uncoiler is equipped with CPC automatic centering function, which adopts EMG products from Germany, and improves the centering response speed and position control accuracy.
2. Rolling line adjustment equipment adopts stepwise wedge combination adjustment, and the input roll diameter can quickly and automatically control the stepwise wedge displacement of the oil cylinder drive to the right position, realizing automatic and quick adjustment of the rolling line (companys utility model patent:  ZL201120139812.6);
3. Positive and negative bending of the work roll; the intermediate roll has transverse moving presetting, locking, and positive bending control measure. The bending roll can be controlled from single side; rollers are equipped with subsection cooling and roll shape adjustment. Multiple-plate-shape control measure is able to better control the plate shape of finished strips.
4. Roll system of the rolling mill, the turning roll, and the oil removal roll bearing adopt air-oil lubrication, which can prolong the bearings life and reduce oil consumption, pollution and maintenance quantity with high lubrication efficiency.
5. Imported X-ray thickness gauge is adopted, improving the thickness precision of finished strips.
6. Imported laser velocimeter is adopted to realize mass flow AGC control in combination with AGC system, with improved the yield of strips.
7. The rolling mill adopts Simens S7-400 programmable controller, DC drive adopts 6RA70 all-digit speed regulating system, and the electric system takes safety protection measures of overload protection, strip breakage protection, emergency cut-off, etc.; the unit is equipped with functions of strip tail automatic deceleration, accurate stopping and multi-point stopping; coiler is equipped with functions of cycle memory, strip length calculation, and jaw accurate positioning.
8. AGC automatic system adopts S7-400+FM458 structure, which makes the utmost use of the controller and matches the quick response of the high-speed rolling mill.
10. All key components and parts of hydaulic system adopt import components and parts, which improves system reliability.
11. Hydaulic AGC system is equipped with advanced functions of constant roll gap control, constant roll force control, constant thickness control, mass flow control, thickness precontrol, tension/speed automatic control, etc.