Five-stand Cold Continuous Rolling Mill Unit

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 ...

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

Five Stand Cold Continuous Rolling Mill Unit