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6 Hi Reversing Cold Rolling Mill for Steel Strips

6 Hi Reversing Cold Rolling Mill for Steel Strips

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位置:

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最小订单价格:

-

最小订单:

-

包装细节:

seaworthy packing

交货时间:

150 days to 180 days

供应能力:

10 Set per Year

付款方式:

T/T, L/C

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免费会员

联系人 Ms. Linda

Chuangye Building, Yanjiao Development Zone, Beijing East, Beijing

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详情

6 High Reversing Cold Rolling Mill for steel strips 

General Introduction
The production of this unit is to roll hot rolled coils with the thickness of 1.2~2.5mm into high precision cold rolled coils with the thickness of 0.15~0.5mm through several time of rolling. The scale of the cold rolling production line is a production of 200 thousand tons of cold rolled steel coils per year. It adopts the UCM-type single-stand 6-roll reversible cold rolling mill. The work roll of the rolling mill is equipped with positive and negative bending. The intermediate roll is equipped with positive bending and twitch. The uncoiler is equipped. Both front and rear frames are equipped with coiler, thickness gauge, etc., which can realize large tension rolling and guarantee high-speed and stable production with specified thinness.

Note: We can customize the machine according to our customer\'s requirements. 
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 3. Technical data of the 1200mm 6-High Reversing Cold Rolling Mill 

No

Specification  

Data

1

Specification   of Rolling Mill

F1150/F420/F350x1380mm

2

Max   Rolling Pressure

12000KN

3

Max   Rolling Torque

73KN.m

4

Max   Rolling Speed

1200 mpm

5

Max   threading speed

30 m/min.

6

Max   uncoiling speed

300m/min.

7

max. rolling speed

1200m/min.

8

Coiling tension

140~14KN
 

9

max. coiling speed 

1250m/min.

3.Product Program

Standard of raw material 

Material quality

Pickled Hot Rolled Low Carbon Steel
1008/1010 EN1011:DD11/DD12/DD13 DIN1614:ST

Thickness

1.2mm-2.5mm

Coil Width

650mm-1050mm

Rolling diameter(interior /exterior)

Φ610-760mm/Φ850-2100mm

max. coil weight 

30 tons

Standard of final products

 

Thickness

0.15-0.5mm

Coil Width

650mm-1050mm

Rolling diameter(interior/exterior)

Φ610-760mm/Φ850-2100mm

CPC centering control accuracy

      ±1mm

processing lubrication flow

8000 L/min.

max. coil weight 

30 tons

Characteristics of the Cold Rolling Mill
1200 6-hi reversible cold rolling unit is the cold rolling production line with designed annual output of 200 thousand tons and adopts UCM-type single-stand mill. It rolls 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, etc. its 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;
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.Double-station roll changing carriage is adopted, which realizes the swift changing between the work roll and the intermediate roll.
5.Roll system of the rolling mill, the turning roll, and the oil removal roll bearing adopt air-oil lubrication, which can prolong the bearing\'s life and reduce oil consumption, pollution and maintenance quantity with high lubrication efficiency.
6.X-ray thickness gauge is adopted, improving the thickness precision of finished strips.
7.The whole control system of the Six-High CRM adopts full digital AC driving devices, PLC Unit process control and remote communication network technology. The power supply and distribution, AC and AC motor control, PLC system, remote I / O system, AGC system and human machine interface (HMI) are integrated through two-level network. In the design, the interfaces between each system are designed in a unified way, so as to form the whole automatic control system of modern CRM.
8.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.
9.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.In the second-level automation controlled by AGC, rolling schedule is further improved.
11.All key components and parts of hydraulic system adopt import components and parts, which improves system reliability.
12.Hydraulic AGC system is equipped with advanced functions of constant roll gap control, constant roll force control, constant thickness control, mass flow control, thickness pre-control, tension/speed automatic control, etc. 

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