Purpose: Rolling heated aluminum and aluminum alloy flat ingots into 4-7mm strips and rolling them into coils.

1. Incoming material specifications

1.1 Rolling materials: 1000 series, 3000 series, 5000 series

1.2 Ingot specifications:

Ingot thickness: 500mm (1000 series, 3000 series); 300mm (5000 series)

Ingot width: 1360mm (1000 series, 3000 series); 1260mm (5000 series)

Ingot length: 5000mm

Ingot weight: MAX9000Kg

2. Finished product specifications

2.1 Finished product thickness: 4-7mm

2.2 Thickness error: Strip thickness ≤ ± 1.5%, flatness 50I (excluding material head and tail to meet the requirements of cold rolling based on the system)

2.3 Roll width: 1060-1260-1360mm

2.4 Inner diameter of coil material: Φ 610mm

2.5 Outer diameter of coil material: Ф 1850mm (maximum)

2.6 String layer: ≤ 4mm

2.7 Tower type: ≤ 5mm (refers to the center deviation of the plate)

2.8 Coil weight: MAX9000Kg

2.9 Final rolling temperature: about 300 degrees

3. Rolling mill parameters

3.1 Rolling mill body parameters

Roll diameter: Ф 860mm

Roll surface length: 1600mm

Roll neck: Ф 480mm

Rolling force: 13000KN

Rolling speed: 0-150m/min

Biting (throwing) speed: 0/15m/min

Roller balance force: 500KN

Opening degree: Max520mm

Electric screwdown power: ZZYH-41 17kw 1130r/min 220V 2 sets

Electric pressing speed: 0/8mm/s

Voltage of one electromagnetic synchronous clutch? electric current?

Cross section size of rack column: 500 * 500mm

Roller bearing: four row cylindrical roller bearing FCDP96136500

Nominal rolling torque: 1100KN • M, maximum rolling torque 1500 KN • M

Smoke exhaust fan 45kw

3.2 Main transmission parameters

Main motor: DC 710-2A 2 × 1233KW 530/1000 R/MIN 660V 2000A

Overload twice (1 minute) cooling fan power?

Main reducer transmission ratio: 17.79

Main transmission shaft: cross shaft universal joint SWP600D-91 L=3660mm

Transmission shaft balance force: hydraulic

3.3 Thickness control hydraulic adjustment and AGC control

Adjusting cylinder diameter: 13000KN（ Ф 760mm/ Ф 600mm)

Adjusting stroke: 100 mm

Working pressure: 25MPa

3.4 Guide ruler (2 sets of centering devices)

Height: 380mm

Length: 4000mm

Opening degree: 800-1400mm

Centering accuracy: ± 2mm

Drive method: hydraulic cylinder mechanical synchronization

Centering speed: 200mm/s

3.5 Pinch rollers (2 sets)

Diameter: Ф 300mm

Roller length: 1600mm

Drive motor: variable frequency drive 30KW

Speed: 0/150m/min

3.6 Left recoiler

Coiling tension: 16000KG

Tension accuracy: steady state ± 1.5%, acceleration and deceleration: ± 3%

Drive motor: Z400-3A 242kw 439/1500r/min 400V 678A 2 overload 2 times cold

But the power of the fan?

Transmission ratio: i=14.5

Coiling speed: 0/180m/min

Roll diameter: Ф 610mm

Active support: swinging type

Coiling thickness: 18mm

3.7 Right recoiler

Coiling tension: 16000KG

Tension accuracy: steady state ± 1.5%, acceleration and deceleration: ± 3%

Drive motor: Z400-3A 242kw 439/1500r/min 400V 678A 2 overload 2 times cold

But the power of the fan?

Transmission ratio: i=14.5

Coiling speed: 0/180m/min

Roll diameter: Ф 610mm

Active support: swinging type

Coiling thickness: 18mm

3.8 Wrapper (2 sets)

Coiling tape: steel tape

Drive method: hydraulic cylinder with 3 limits and 3 points

3.9 Unloading car (2 sets)

Load bearing capacity: 100KN

Traveling speed: 3m/min with 2 limit positions

Rising stroke: 1000mm, 2 limit positions

3.10 Hydraulic heavy shear 2 sets

Motor: 1 set at 37kw, 2 sets at 55kw, and 1 set at 4kw

Shear force: 5000KN

Maximum shear thickness: 100mm

Maximum shear width: 1360mm

Cutting method: 3 down cutting limits

3.11 Entrance roller table

Roller table inside the frame: active, concave convex roller, variable frequency drive 15KW;

Work roller table: double cone, variable frequency drive 30KW;

Transport roller table: double cone, AC variable frequency segmented drive

3.12 Run out table

Roller table inside the frame: active, concave convex roller, variable frequency drive 15KW;

Work roller table: double cone, variable frequency drive 30KW;

Transport roller table: double cone, AC variable frequency drive, controlled according to the plan.

3.13 lotion cooling and lubrication system

Flow rate: 5000L/min

Pressure: 0.5-0.6Mpa

Volume of purification tank: 80m ³

Volume of sewage tank: 80m ³

Filter: Needle hole filter, with a filtration accuracy of about 10 µ m and a filtration capacity of 7000L/min Power?

Heater: gas boiler, controlled temperature 50-60 ℃, power 20kw

Supply pump:. GE/GEC125X100-250, flow rate 300 ³/ h. 3 units with a lift of 70 meters, 2 units working and 1 unit standby use. Motor power: 90kw 2900r/min

Filter pump: KQL250/300-55-4, flow rate 365 ³ / Head 31.5 meters, power 55kw

1480r/min, 3 sets, 2 sets for operation, and 1 set for backup.

Lotion control during rolling: at each pass, the inlet and outlet spray beams of rolling work at the same time, every 50MM

Install a nozzle with controllable nozzle grouping to achieve roll shape control.

Purified water device power 10kw

10 electromagnetic butterfly valves (temporarily possible to be added) driving mode?

1 oil blower with a power of 7kw

3.14 Hydraulic system

Press down one set of pump station and two servo valve blocks; Two 55kw motors, one for backup and one for use. 3kw, 1 heater?

KW

One set of hydraulic shear pump station and two valve stations; Motor: 1 set at 37kw, 2 sets at 55kw, 1 set at 4kw, working simultaneously

As a heater? KW

One set of auxiliary pump station, 4 valve stations, 3 motors of 55kw, 2 for use and 1 for backup. Heater? KW

3.15 Thin oil centralized lubrication system

Pressure: 0.2-0.4Mpa

Model: XYZ-250G2, nominal flow rate 250L/min, oil tank volume 6.3 cubic meters, motor model: Y160M-6 7.5kw, 2 sets, 1 backup and 1 for use, heater? KW

Cooler: water cooled

Purpose: Lubricating the gearbox of the main machine and the gearbox of the left and right coilers.

3.16 Dry oil centralized lubrication system

Usage: The lubrication of roller bearings, coil aids, and hydraulic shears is arranged using dispersed dry oil nozzles, which are used on site

Manual refueling gun refueling.

3.17 Pneumatic system

2 sets of 11kw high-pressure fans

3.18 Electric control system

DC system: using Siemens DC controller

Train operation and AC control: Siemens S7-300 series PLC programmable controller is used.

Production monitoring system.

3.19 Operation console

Main console: Rolling mill operation

Auxiliary platform 1: Entrance unloading operation

Auxiliary platform 2: Exit coil unloading operation

3.20 Equipment cooling water system

Two centrifugal pumps, one for backup and one for use. 55kw

3.21 Semi continuous casting

One set of electrical control for casting machine

4  Process Description

4.1 Loading and Rolling Preparation

4.1.1 Heating the ingot to the rolling temperature; Lotion and roll shall be heated to the specified temperature as required

4.1.2 The roller balance cylinder and the main transmission shaft balance device are in working condition

4.1.3 The rolling mill is ready for rolling, and the roll gap is set according to the regulations. The roll rotates at the set speed

Set the guide ruler at the maximum opening of the inlet and outlet working roller tables

4.1.4 The pushing mechanism of the heating furnace pushes the ingot out of the furnace

4.1.5 The turnover mechanism places the ingot on the receiving roller table of the rolling mill

4.1.6 The receiving roller table and working roller table rotate forward to transport the ingot to the working roller table

4.2 Forward rolling

4.2.1 The guide ruler of the entrance work roller works to align the rolled piece with the centerline of the unit, and then the guide ruler detaches from the rolled piece

4.2.2 Rolling mill, receiving roller table, working roller table rotates forward, and the roller table in the entrance frame rotates forward to deliver the rolled piece to

Rolling mill; The roller table inside the outlet work rack operates in reverse (in the same direction as the inlet side)

4.2.3 The first few passes of the rolling mill are fed and rolled at the set rolling speed. When the strip reaches a certain length, the rolling mill

Bite the material at the threading speed, increase the speed of the rolling mill after biting, and roll at a stable speed. When the rolled piece is near the end, the unit slows down to the threading speed,

Until the rolled piece is thrown out of the rolling mill

4.2.4 The rolling mill, inlet, and outlet racks, as well as the working and transportation roller tables, stop working at the inlet receiving roller table,

End of forward rolling

4.3 Reverse rolling