1 , two-roll mill use
The two-roll mill equipment is low-carbon steel, copper-silver-lead aluminum, non-ferrous metal sheet, and alloy powder cold-rolled strip experimental equipment.
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2 , the working principle of the two-roll mill
The two-roll mill is divided into reversible and irreversible, and now generally adopts reversible type. The two-roll mill mainly bites the rolling stock into the rolling mill through two rotating rolls, and realizes the change of the incoming material size to complete the rolling. When the sheet is rolled, the working surface of the roll is flat, and the thickness of the sheet is changed by the pressing device to adjust the thickness of the sheet. The rolled wire is a hole type on the roll, and the change in the shape and size of the cross section is completed in the hole type. At the same time, the roll gap can be adjusted by the pressing device to realize the change of the sectional size.
3 , the main function of the two-roll mill
The equipment is a cold rolling experimental equipment for low carbon steel and non-ferrous metal sheets. The computerized measuring device with advanced rolling process parameters can measure the pressure, torque, motor power and speed of the rolling process. Therefore, research on material rolling processes and development of cold rolled parts can be carried out on the equipment.
4 , two-roll mill composition and structural characteristics
The machine consists of main motor, reducer, herringbone gear seat, universal joint shaft, working machine base, electric control cabinet, etc. The roller system adopts special rolling mill bearing, and the roller material is 9Cr2Mo .
5 , two-roll mill selection method table
Model / mm | Roll size mm | Blank sizemm | Finished product sizemm | Rolling force KN | Rolling speedm/s | Motor powerKW | |||
Roll length | Roller diameter | thick | width | thick | width | ||||
Φ170×300 | 300 | 170 | 2 | 200 | 0.17 | 450 | 0.2-0.4 | 24.5 | |
Φ250×300 | 300 | 200 | 10 | 200 | 0.5 | 1000 | 0.3 | 55 | |
Φ250 × 300 | 250-300 | 180-200 | 6 | 200-260 | 1.2 | 1000 | 0.3 | 75 | |
Φ310×400 | 400 | 300-310 | 0.45 | 140-300 | 0.12-0.15 | 140-300 | 1176 | 0.99 | 90 |
Φ350×350 | 350 | 350 | 12 | 240 | 1 | 1250 | 0.49 | 115 | |
Φ420×350 | 850 | 420 | 30 | 250 | 1 | 1800 | 0.45 | 185 | |
Φ485×850 | 850 | 455-475 | 30 | 330-560 | 0.45 | 0.88 | 280 | ||
Φ500×1200 | 1200 | 500 | 10 | 1050 | 0.5 | 2500 | 0.63 | 130 | |
Φ500×1350 | 1350 | 490-510 | 20 | 1100 | 0.8 | 1100 | 4000 | 0.89 | 210 |
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