Description
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.
