| Rolling Shape: | Plank, Ribbon, Bar, Wire |
|---|---|
| Product: | Profile, Steel Billet |
| Roller Position: | Special Form |
| Roller Number: | Four-High |
| Layout: | Continuous |
| Type: | Cold Rolling Mill |
| Customization: |
|---|
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Audited Supplier Ø180×720/Ø600×700 4 Rollers Reversible Cold Rolling Mill Production Line Technical Parameters and Equipment Composition
1, Mill type and use:
1.1, Type: Ø180×720/Ø600×700
Reversible four-roll rolling mill unit
1.2, Use: Width350mm~600mm Thickness: 0.5mm~3.5mm
Used for plain carbon steel rolling
2, Mill process flow diagram:
(load material→uncoil→ pinch )→left mill roll→ four-roll cold rolling mill→right mill roll→coil discharging
1, Technical parameters of the unit
Blank specification: 2.5~4.0× 350~600 mm
Finished products specification: 0.50~1.8×350~600 mm
Billet tolerance in accordance with national standards
Coil stock specifications:
Max outside diameter:1800 mm
Inner diameter:508 mm
Max coil weight:10 t
Max rolling force:5500 KN
Rolling speed:≤180 m/min
Coiling speed:≤180 m/min
Coiling tension:65 KN
Coiling machine coiling block expanding diameter:
Max 508 mm Min 495 mm
Uncoiling machine coiling block expanding diameter:
Max 515 mm Min 485 mm
Unit operating line height:950 mm
Unit operating line direction:From left to right
Unit total installed capacity: 959 KW
4,Unit equipment composition
Feeder tripper:
Charging wagon`s horizontal movement is performed by the electric car, lifting by oil cylinder.
Uncoiling machine:Set on the left of the rolling mill,can roll the strip one pass in uncoiling mode, mainly composed of hydraulic bulge winding mandrel, reducer and DC motor.
Rolling mill coiler: Rolling mill coiler is set in the left and right of main rolling mill, cooperate with the main rolling mill for reversible rolling to strip, and establish rolling before and after tension. Constant tension rolling and speed tracking display is mainly composed of hydraulic bulge winding mandrel, reducer casing and DC motor.
Main rolling mill: Four-high millis the core equipment of the unit, in conjunction with the left and right roll machine,reversible rolling to strip with tension, is mainly composed of roll system, rack device, hydraulic screwdown gear, hydraulic bending roll device, main gear hydraulic roll change device and so on.
Hydraulic transmission system:
working pressure:10 MPa oil tank capacity:2.0 m3
working medium:46#antiwear hydraulic oil
filter fineness:10 µm
Equipment lubrication system:
working pressure:0.5 MPa oil tank capacity:3.0 m3
working medium:46#antiwear hydraulic oil
filter fineness:20 µm
Bending roll hydraulic system:
working pressure:15 MPa oil tank capacity:0.5 m3
working medium:46#antiwear hydraulic oil
filter fineness:10 µm
Technology lubrication system:
working pressure:0.5 MPa (users themselves)
working medium:emulsified liquid
flux:2000L/min
filter fineness:50 µm
Electric control equipment:In the rolling mill, all of the Dc drive electric control all adopt Siemens full digital dc drive system, to finish rolling mill speed and tension control and has many excellent properties. Higher stability accuracy and excellent dynamic response ability and current speed adaptive function can ensure steady and reliable operation,reduce the machine maintenance time. The main rolling mill is designed for purity control system, also has a single action control, operator operates. The whole digital dc drive has perfect protection function, such as: default phase, overload, overheating, motor stalling and other protections. In the meantime, electronic control also adopt PLC to implement process operation and logic control of the mill.
Hydraulic AGC system:This system has hydraulic press roll gap control(AGC), constant rolling pressure control(AFC),thickness gauge precontrol, monitoring and so on. The system works reliably, easy operation, self protection is fully functional, and with rolling technology database, When rolling different specification of strips, you just need to call out the corresponding rolling technology so you can set as-rolled condition before every time start rolling.
Hydraulic AGC automatic gauge control system basic requirements
1) Automation using Siemens PLC control;
2) Man-machine interface using EVIEW touch screen;
3) Displacement sensor using SONY magnetoscale;
4) Pressure sensor using HYDAC company products;
5) Servo valve using 609 aerospace institute company products;
6) Servo hydraulic cylinder sealing element using imported materials;
Thickness control precision:
steady-state rolling:0.3mm ±4.5μm ; 0.5-0.8mm ±7μm
accelerate and decelerate rolling:2%h; ≤±10μm.
Liaoning JinRong Machinery Import and Export Co.,LTD,AnShan Ying Yat Trade Co.,Ltd, located in the northeast region of the largest steel industry city,it has the reputation of "the steel capital of the republic"--Anshan. The specific address is Qianshan West Road, Tiexi District, Anshan City, Liaoning Province. We always adhere to the customer first, with sincere service to impress customers, to "honest and trustworthy, customer first" as the principle, and in terms of products and to "quality-oriented, keep improving" as their own practice standards, and strive to provide customers with a full range of quality services at the same time, but also make the enterprise get long-term development. Machinery equipment production and processing machinery industry quality enterprises. The company mainly metallurgical equipment, with research and development, design, production, installation, commissioning, trial production, one-stop services. We mainly produce rolling equipment, continuous casting equipment and auxiliary equipment for steel mills.Wire, bar, strip, section steel and other long steel rolling production line equipment manufacturing and engineering contracting services. Full experience of steel production line general contracting service. Various mature steel rolling production lines can be customized according to user requirements, such as high-speed bar, high-speed wire, sectional material, H steel, strip steel, ordinary bar, ordinary wire, etc. It can provide process design, equipment manufacturing, equipment installation, equipment debugging, etc. of all equipment in the production line, shortening the production time for customers, improving market competitiveness faster, and creating economic benefits faster.
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Audited Supplier 
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