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Z6(18) Hi Reversing Rolling Mill
1. The advantages of 18 rolls(Z6) hydraulic rolling mill
The 18 rolling mill(Z6) has Z-high type and S6-high type, which is a type of 4 sets of side support devices on the basis of the HC 6Hi rolling mill. The rolling mill is suitable for the processing of stainless steel, high carbon steel and high-strength metal . Our company's independent research and development and design of the 18 rolling mill(Z6) have been put into use at present. The mill is stable, high quality, high yield; minimum rolling thickness is 0.15mm, the speed of 1000m/min; with intermediate roll, hydraulic bending ; consumption is 80% of the traditional equipment, performance of catching up with the types of imported products.
1.1 The rolling reduction is large and the rolling force is small, and the energy consumption of the rolling mill is low.
1.2 Can produce very thin strip and hard rolled alloy strip.
1.3 The work roll is small and can be made economically with special alloy materials with high hardness.
1.4 The work roll has no bearing and bearing seat, and the replacement is convenient and quick.
1.5 As the end of the middle roller has a taper, the middle roller can be adjusted axially, which has the advantage of controlling the plate type of the HC mill, that is, it can effectively control the strip shape of the strip. With different coil width, the middle roller can be appropriate for axial adjustment, the flat roll strip edge part is located in the inner side, to eliminate the effect of harmful contact part of the work roll to avoid excessive deflection, to control the edge wave, so as to ensure the smooth rolled strip has good plate shape quality.
2. Coiling parameters
2.1 Raw materials
Raw Materials | |
Texture of material | Metal and Alloys |
Material Thickness | Max3.5mm |
Material Width | Max1250mm |
Inside Diameter | 610mm |
Outer Diameter | 900-2200mm |
Material Weight | Max25Ton |
2.2 Finished product
Finished Product Parameters | |
Finished thickness | 0.50-0.15mm |
Coil Width | Max1250mm |
Inside Diameter | Φ610mm |
Outer Diameter | Φ900-2200mm |
Coil Weight | Max25Ton |
3. Main Technical Parameters of the Rolling Mill
Mill specification | 18 rolling mill(Z6) reversible |
Maximum Rolling Pressure | Non - Standard (width, thickness, material properties) |
Rolling Speed | Max1000m/min |
Coiling Tension | Max50Ton |
Mill Speed Precision | 1% |
Tension Precision（FS） | The dynamic fluctuations in the value of less than 4%. Steady state: fluctuations in the value of less than 1.5% |
Bending Force | Non - Standard (width, thickness, material properties) |
Hydraulic Drive System | 12Mpa |
Bending System Pressure | 16Mpa |
AGC System Pressure | 21Mpa |
4.1 Mechanical equipment
No. | Device name | Unit | Quantity | Note |
1 | Uncoiler | Set | 1 | Custom |
2 | Pinch straightener | Set | 1 | Custom |
3 | Entrance side coiler | Set | 1 | Custom |
4 | Entrance side platform | Set | 1 | Custom |
5 | Rolling mill housing | Set | 1 | Custom |
6 | Rolling mill drive | Set | 1 | Custom |
7 | Exit side platform | Set | 1 | Custom |
8 | Exit side coiler | Set | 1 | Custom |
9 | Rolls | Set | 1 | Custom |
10 | Side support rolls | Set | 4 | Custom |
11 | Middle roll shifting | Set | 2 | Custom |
12 | Bending and balancing device | Set | 4 | Custom |
13 | Oil squeeze unit | Set | 2 | Custom |
14 | Tension testing | Set | 2 | Custom |
15 | Turning roll | Set | 2 | Custom |
16 | Roll changing device | Set | 1 | Custom |
4.2 Motor, electronic control and instrument system
No. | Device | Unit | Quantity | Specification |
1 | Uncoil Motor | Set | 1 | AC OR DC |
Mill Motor | Set | N | AC OR DC | |
3 | Coil Motor | Set | N | AC OR DC |
4 | （Siemens PLC） | Set | 1 | SIEMENS |
5 | （AGC） | Set | 1 | SIEMENS PLC |
6 | （Gauge） | Set | 1 | AMC |
No. | Device | Unit | Quantity | Specification |
Low pressure hydraulic station | Set | 1 | Custom | |
2 | AGC hydraulic station | Set | 1 | Custom |
Screw-down cylinder | Set | 2 | Custom | |
3 | Process lubrication system | Set | 1 | Custom |
4 | Gear oil lubrication | Set | 1 | Custom |
5 | Oil mist collect & purification | Set | 1 | Custom |
6 | Automatic fire extinguishing device | Set | 1 | Custom |
5. Structural characteristics of 18 rolling mill
5.1 High rigidity and high precision;
5.2 6 Hi rolling rolls system with side push roll system;
5.3 Plate shaped middle roll bending roll and middle roll to adjust;
5.4 Automatic hydraulic adjustment of rolling line;
5.5 Coiling four pyramid hydraulic collapsible drum;
5.6 Mill Speed:0-1200m/min;
5.7 Working mode：Reversible;
5.8 Hydraulic AGC thickness control; constant tension control;
5.9 Roll mileage management;
5.10 The unit adopts Siemens PLC control, AC and DC drive control;
5.11 The unit uses dynamic seal deoil, oil removal effect: residual 350mg/m2.
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