GLIMPSE S-high cold rolling mill (18-roll)
S-HIGH
The reversing S-high cold rolling mill unit has the characteristics of high speed, stability and high yield. It produces stainless steel strip with a minimum rolling thickness of 0.25mm and a speed of 800m/min. The intermediate roll of the Reversing S-high cold rolling mill has the functions of traverse and roll bending to control the shape of the roll. The energy consumption per ton of steel of the Reversing S-high cold rolling mill is 20% of that of traditional cold rolling equipment, and its performance has reached the international leading level. The eighteen-high reversing cold rolling mill has a wide rolling range, and the rolling widths are 720mm, 850mm, 1150mm, 1380mm, 1450mm, 1810mm, 2250mm, etc.; the maximum thickness can be rolled to 18mm.
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GLIMPSE S-high cold rolling mill (18-roll)
The Reversing S-high cold rolling mill has been continuously improved, and the technology has become mature for applications. It is widely used in cold rolling substrates of ultra-thin and wide galvanized sheets, tin-plated sheets and cold rolling of stainless steel sheets and strips. The ultra-thin and wide-width strip steel required by the market has been cut to 0.1mm, and the conventional four-high and six-high rolling mills cannot meet the thickness requirements, and the twenty-high rolling mills are expensive in the initial investment and maintenance. The eighteen-high mill is very suitable for the production of this kind of product and is cost-effective.
The reversing S-high cold rolling mill unit has the characteristics of high speed, stability and high yield. It produces stainless steel strip with a minimum rolling thickness of 0.25mm and a speed of 800m/min. The intermediate roll of the Reversing S-high cold rolling mill has the functions of traverse and roll bending to control the shape of the roll. The energy consumption per ton of steel of the Reversing S-high cold rolling mill is 20% of that of traditional cold rolling equipment, and its performance has reached the international leading level. The eighteen-high reversing cold rolling mill has a wide rolling range, and the rolling widths are 720mm, 850mm, 1150mm, 1380mm, 1450mm, 1810mm, 2250mm, etc.; the maximum thickness can be rolled to 18mm.
1. The composition and structural characteristics of Reversing S-high cold rolling mill:
The Reversing S-high cold rolling mill unit is composed of loading car, payoff roll, head straightener, right recoiler, unload car, front device, S-high RCRM, lifting cover, roll changing car, backup roll changing car, rear device, left recoiler, and belt wrapper, etc. .
The Reversing S-high cold rolling mill consists of backup rolls, intermediate rolls, work rolls, and 6 side backup rolls distributed on both sides. The sequence of roll arrangement is 1, 3, 5. Among them, The layout of main rolls is similar to the 6 high rolling mill, so it can also be used as a"6 high rolling mill with side backup rolls". However, the diameter of the work roll of S-high cold rolling mill is far less than the 6 high rolling mill, so S-high rolling mill has prominent advantages. The work roll of S-high rolling mill has no bearing. When rolling, the work roll is positioned by intermediate rolls, side backup rolls, and the work rolls balance from all directions. The end of the middle roll has a taper, which can move in axis direction. The two rows of the outer row of the side backup rolls are composed of multiple back lining bearing. The side backup rolls and the intermediate rolls are installed in the same roll box.
Generally, the surface to diameter ratio of work roll of 4-high rolling mill is 3-4 while the ratio of S-high rolling mill is 10, which means that the diameter of the work roll of S-high rolling mill is about 1/3 of that of ordinary 4-high rolling mill.
2. The advantages of the Reversing S-high cold rolling mill:
1) The large reduction and small rolling force of each rolling pass result in low energy consumption of Reversing S-high cold rolling mill;
2) The Reversing S-high cold rolling mill can produce extremely thin and hard-rolling alloy strip;
3) Work roll is light weight and made of special alloy material;
4) Work roll is easy to regrind;
5) The intermediate rolls positioning between work rolls and backup rolls have a certain taper and axial adjustment, which have the advantages of the HC rolling shape control. With the different width, the intermediate rolls can be appropriately adjusted in axis to make the flat part of rolls inside the internal side of the strip, eliminating the impact of the harmful contact part, avoiding the excessive deflection of work rolls, and achieving the purpose of controlling the edge waves, thereby ensuring good shape.
3. Typical unit: 1250mm Reversing S-high cold rolling mill
The Reversing S-high cold rolling mill is composed of load car, payoff roll, head straightener, right recoiler, unload car, front devices, S-high rolling mill, lift cover, roll changing car, backup roll changing car, rear devices, rear devices, left recoiler, belt wrapper, etc..
1) The main technical parameters of 1250mm Reversing S-high cold rolling mill unit:
Maximum rolling force: 12000KN
Maximum rolling torque: 60kn.m
Rolling speed: 0 ~ 380 ~ 900m/min
Maximum threading speed: 0 ~ 30m/min
Maximum payoff speed: 350m/min
Maximum coiling speed: 950m/min
Payoff tension: 6-60kn
Coiling tension: 14-140kn
Work roll size: φ170 ~ φ140 x 1250mm
Intermediate roll size: φ370 ~ φ345 x 1250mm
Backup roll size: φ1000 ~ φ900 x 1200mm
Side roll size: φ168 ~ φ165 x 1085mm
Diameter of payoff mandrel: φ520-508-460mm
Diameter of coiling mandrel: φ485-508mm
Maximum opening of work rolls: 20mm
Positive/negative bending force of intermediate roll (single roll unilateral): 320/200kn
Traverse of intermediate roll: 200mm
Hydraulic transmission system pressure: 10MPa
Bending, traverse system pressure: 28MPa
Screw up system pressure: 28MPa
Process lubricant: 7500L/min
Main rolling motor: DC 1250KW 4 units
Left and right coiling motor: DC 1250KW 4 units
Payoff motor: DC 383KW 1 units
Total capacity of the unit equipment: DC 10416kW
Keywords: cold rolling mill, S-high cold rolling mill, 18-roll cold rolling mill
The Reversing S-high cold rolling mill has been continuously improved, and the technology has become mature for applications. It is widely used in cold rolling substrates of ultra-thin and wide galvanized sheets, tin-plated sheets and cold rolling of stainless steel sheets and strips. The ultra-thin and wide-width strip steel required by the market has been cut to 0.1mm, and the conventional four-high and six-high rolling mills cannot meet the thickness requirements, and the twenty-high rolling mills are expensive in the initial investment and maintenance. The eighteen-high mill is very suitable for the production of this kind of product and is cost-effective.
The reversing S-high cold rolling mill unit has the characteristics of high speed, stability and high yield. It produces stainless steel strip with a minimum rolling thickness of 0.25mm and a speed of 800m/min. The intermediate roll of the Reversing S-high cold rolling mill has the functions of traverse and roll bending to control the shape of the roll. The energy consumption per ton of steel of the Reversing S-high cold rolling mill is 20% of that of traditional cold rolling equipment, and its performance has reached the international leading level. The eighteen-high reversing cold rolling mill has a wide rolling range, and the rolling widths are 720mm, 850mm, 1150mm, 1380mm, 1450mm, 1810mm, 2250mm, etc.; the maximum thickness can be rolled to 18mm.
1. The composition and structural characteristics of Reversing S-high cold rolling mill:
The Reversing S-high cold rolling mill unit is composed of loading car, payoff roll, head straightener, right recoiler, unload car, front device, S-high RCRM, lifting cover, roll changing car, backup roll changing car, rear device, left recoiler, and belt wrapper, etc. .
The Reversing S-high cold rolling mill consists of backup rolls, intermediate rolls, work rolls, and 6 side backup rolls distributed on both sides. The sequence of roll arrangement is 1, 3, 5. Among them, The layout of main rolls is similar to the 6 high rolling mill, so it can also be used as a"6 high rolling mill with side backup rolls". However, the diameter of the work roll of S-high cold rolling mill is far less than the 6 high rolling mill, so S-high rolling mill has prominent advantages. The work roll of S-high rolling mill has no bearing. When rolling, the work roll is positioned by intermediate rolls, side backup rolls, and the work rolls balance from all directions. The end of the middle roll has a taper, which can move in axis direction. The two rows of the outer row of the side backup rolls are composed of multiple back lining bearing. The side backup rolls and the intermediate rolls are installed in the same roll box.
Generally, the surface to diameter ratio of work roll of 4-high rolling mill is 3-4 while the ratio of S-high rolling mill is 10, which means that the diameter of the work roll of S-high rolling mill is about 1/3 of that of ordinary 4-high rolling mill.
2. The advantages of the Reversing S-high cold rolling mill:
1) The large reduction and small rolling force of each rolling pass result in low energy consumption of Reversing S-high cold rolling mill;
2) The Reversing S-high cold rolling mill can produce extremely thin and hard-rolling alloy strip;
3) Work roll is light weight and made of special alloy material;
4) Work roll is easy to regrind;
5) The intermediate rolls positioning between work rolls and backup rolls have a certain taper and axial adjustment, which have the advantages of the HC rolling shape control. With the different width, the intermediate rolls can be appropriately adjusted in axis to make the flat part of rolls inside the internal side of the strip, eliminating the impact of the harmful contact part, avoiding the excessive deflection of work rolls, and achieving the purpose of controlling the edge waves, thereby ensuring good shape.
3. Typical unit: 1250mm Reversing S-high cold rolling mill
The Reversing S-high cold rolling mill is composed of load car, payoff roll, head straightener, right recoiler, unload car, front devices, S-high rolling mill, lift cover, roll changing car, backup roll changing car, rear devices, rear devices, left recoiler, belt wrapper, etc..
1) The main technical parameters of 1250mm Reversing S-high cold rolling mill unit:
Maximum rolling force: 12000KN
Maximum rolling torque: 60kn.m
Rolling speed: 0 ~ 380 ~ 900m/min
Maximum threading speed: 0 ~ 30m/min
Maximum payoff speed: 350m/min
Maximum coiling speed: 950m/min
Payoff tension: 6-60kn
Coiling tension: 14-140kn
Work roll size: φ170 ~ φ140 x 1250mm
Intermediate roll size: φ370 ~ φ345 x 1250mm
Backup roll size: φ1000 ~ φ900 x 1200mm
Side roll size: φ168 ~ φ165 x 1085mm
Diameter of payoff mandrel: φ520-508-460mm
Diameter of coiling mandrel: φ485-508mm
Maximum opening of work rolls: 20mm
Positive/negative bending force of intermediate roll (single roll unilateral): 320/200kn
Traverse of intermediate roll: 200mm
Hydraulic transmission system pressure: 10MPa
Bending, traverse system pressure: 28MPa
Screw up system pressure: 28MPa
Process lubricant: 7500L/min
Main rolling motor: DC 1250KW 4 units
Left and right coiling motor: DC 1250KW 4 units
Payoff motor: DC 383KW 1 units
Total capacity of the unit equipment: DC 10416kW
Keywords: cold rolling mill, S-high cold rolling mill, 18-roll cold rolling mill