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Cold Rolling Equipment

Strip Reversing Mill Stand

Five-stand Cold Continuous Rolling Mill Unit

Strip Reversing Mill Stand:

Single-stand reversing cold rolling mill unit is used to process the pickled and trimmed hot-rolled coil of carbon steel with various materials and a thickness of 1.2~6.0mm (under normal temperature) into cold-rolled coils of various specifications with required thickness and surface roughness through several times of rolling. We can reasonably configure the units according to the customer’s demand for finished strip steel.

Basic Configurations of The Unit:

  • Full-hydraulic AGC computer automatic control system.
  • A human-machine interface is available for the main operation platform to complete dynamic screen display.
  • Rolling process parameters setting, fault alarm and printing of reports.
  • Full digital AC or DC drive of the unit.
  • Roll section cooling automatic control.
  • Pre-setting setting and control of working roll positive and negative bending rolls, intermediate roll traverse movement.
  • Automatic adjustment of strip speed and tension.
  • Protection of Strip broken, failure warming, accurate stop of working roll, coiler accurate stop of jaw position.
  • Automatic alignment of uncoiling machine (CPC).
  • Unit NameTechncial Specification 900 single-stand reversing cold rolling mill unit 1200 single-stand reversing cold rolling mill unit 1250 single-stand reversing cold rolling mill unit 1450 single-stand reversing cold rolling mill unit 1500 single-stand reversing cold rolling mill unit
    Form Single-stand reversing (6-roll) Single-stand reversing (6-roll) Single-stand reversing (20-roll) Single-stand reversing (6-roll) Single-stand reversing (6-roll)
    Nominal capacity 80,000 tons / year 200,000 tons / year 75,000 tons / year 250,000 tons / year 250,000 tons / year
    Maximum rolling speed 1200 m/min 1200 m/min 800 m/min 1200 m/min 1200 m/min
     

     

     

    Rolled material 

    Material Q195-Q345, 08AL, IF Q195-Q345, 08AL, IF Carbon structural steel, high quality carbon structural steel, low alloy steel Low carbon steel, medium carbon steel, low alloy steel, electrical steel Plain carbon steel, high quality carbon steel, low alloy steel
    Plate thickness (in/out) 1.8-4.0/0.2-1.25mm 1.5-3.0/0.2-0.8mm 0.35-3.1/0.12-1.2mm 1. 5-3/0.35-2.0mm 1. 8-2.0/0.2-0.65mm
    Plate thickness 450-750mm 600-110mm 700-1100mm 900-1300mm 900-1350mm
    Coil weight 8t 20t 20t 25t 25t
    Rolling force 9MN 15MN 6MN 18MN 20MN

    Five-stand Cold Continuous Rolling Mill Unit:

    Five-stand cold continuous rolling mill unit is used to process the pickled and trimmed hot-rolled coil of carbon steel with various materials and a thickness of 1.2~6.0mm (under normal temperature) into cold-rolled coils of various specifications with required thickness and surface roughness through rolling of five stands. We can reasonably configure the units according to the customer’s demand for finished strip steel.

    Basic Configurations of The Unit:

  • Automatic rolling up, threading, drifting and waste cutting and treatment at inlet section of the pickling unit
  • Automatic laser welding machine is available at inlet section of the pickling line.
  • Three loops for closed loop drive of wire ropes are available for the unit, and the loop car can walk freely without strip steel.
  • A two-bend and one-leveling tension leveler is provided at the pickling process section, which is subjected to shallow tank turbulent pickling.
  • Turret-style disc shear is available at the pickling outlet, and two correction devices are provided at the disc shear inlet to ensure edge cutting accuracy.
  • The rolling mill is a five-stand full six-roll continuous cold rolling mill, with the function of positive and negative bending roller function with working roll, positive bending roller of intermediate roll, traverse movement of intermediate roll and automatic adjustment of rolling line elevation by wedge, as well as stand drifting rolling and dead zone control of S5 rolling mill working roll bending roller. Automatic control of rolling mill hydraulic roll seam, roll seam presetting, pressing and tilting control, rolling force control, single-side rolling force control, AGC gain adaptation, rolling mill eccentric compensation, acceleration compensation of inlet tension roller, rolling mill stiffness correction and plastic stiffness correction of rolled piece and various compensation function. S1 and S5 stand hydraulic roll seam is provided with the function of feed-forward control and feedback control. The tension roller in front of the stand is controlled as No. 0 stand to adjust S1 mill roll gap.
  • Carrousel coiler is adopted by the unit.
  • The rolling mill and coiler are subject to AC centralized transmission. Quick roll change of working roll and intermediate roll.
  • The back-up roll bearings are lubricated with thin oil, and the working roll and intermediate roll bearings are lubricated with dry oil.
  • The rolling mill is provided with the functions of broken belt protection, accident alarm and accurate stop of working roll, automatic sleeve mounting and dynamic specification change.
  • Unit NameTechncial Specification

    1250 pickling continuous cold rolling mill unit

    1420 pickling continuous cold rolling mill unit

    1450 pickling continuous cold rolling mill unit

    1550 pickling continuous cold rolling mill unit

    1780 pickling continuous cold rolling mill unit

    Form

    Six-stand continuous rolling

    Six-stand continuous rolling

    Five-stand continuous rolling

    Five-stand continuous rolling

    Five-stand continuous rolling

    Nominal capacity

    870,000 tons / year

    1,000,000 tons / year

    600,000 tons / year

    1,100,000 tons / year

    1,500,000 tons / year

    Maximum rolling speed

    1700 m/min

    1700 m/min

    400 m/min

    1350 m/min

    1350 m/min

    Rolled material

    Material

    CQ, DQ, HSS

    CQ, DQ, HSS

    Stainless steel

    Hot-rolled low carbon steel, ultra low carbon steel, etc.

    Q195, Q235, 45#

    Plate thickness (in/out)

    2.0-4.5/0.18-2.0mm

    2.0-4.5/0.18-2.0mm

    2. 0-6.0/0.2-2.0mm

    2. 0-6.0/0.3-3.0mm

    Plate thickness

    700-1100mm

    700-1300mm

    750-1320mm

    750-1430mm

    800-1630mm

    Coiler weight

    22t

    25t

    28t

    28.6t

    30t

    Rolling pressure

    18MN

    20MN

    20MN

    22MN

    25MN

    Hot Rolling Equipment

    The leader of heavy plate and hot strip mill equipment upgrade

    We have a solution design team and a project management team that masters core technology of complete set of technical equipment for hot-rolled strips, and are concentrated on the upgrading and reconstruction of complete set of technical equipment for strips including hot continuous rolling, wide and thick plate and steekle mill. We hold the full-life cycle service concepts of providing complete set of equipment upgrading and reconstruction from traditional spare parts to customized equipment for all customers through integrated solution of process, machine, electricity, liquid as well as advanced and quality services.

    Hot Continuous Rolling Production Line

    Steekle Furnace Rolling Mill Line

    Medium Plate, Wide And Thick Plate Production Line

    Hot continuous rolling production line

    Typical production line specification: 1000mm, 1250mm, 1450mm, 1580mm, 1780mm, 2050mm, 2150mm, 2250mm

    pic21

     

     

    Production demonstration: 

    Steekle furnace rolling mill line

    Typical production line specifications: 1780mm, 2250mm, 3500mm, 4300mm

    2-炉卷轧机生产线1-图片

     

    Production demonstration: 

    Medium plate, wide and thick plate production line

    Typical production line specifications: 2500mm2800mm3500mm3800mm4300mm5000mm

    3-中板、宽厚板生产线-1

     

    Production demonstration: 

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