Stainless steel coil strips thickness reducing mill has some unique features, such as bigger rolling force, dismantable solid coiling mandrel, etc.
and more frequently see reversible SS strip cold rolling mill for the reasons that: stainless steel strip reducing degree is not as much as normal carbon steel, tandem stainless steel mills will be very costly.
Intermediate annealing for SS strip is often required, and annealing must be solution treatment in continuous annealing furnace at speed of around 40m per minute.
To clarify you more specially, we take 850 four roller (4 high) reversible cold rolling mill for stainless steel strip up to 750mm with hydraulic AGC configuration as example.
Uncoiler, pinch feeder and 5 roller straightener, (Recoiler), 4 Hi Reversible Mill, Recoiler.
We can provide complete service of Stainless steel strip reducing plant, here we would like to briefly introduce stainless steel strip continuous solution annealing furnace line.
Uncoiler with 22KW motor for threading, in normal production, is passive uncoiling with brake.
Heat temperature about 1070°C under protection air atmosphere.
Heating furnace is composed of pre heating zone and hot heating zone, total about 25m length.
S roll briddle unit at exit of furnace to pull stainless steel strip continuously out from furnace.
Two recoilers, one is working and the other is discharging annealed SS coil and ready for next coil recoiling, to ensure non stop continuous working of the whole annealing line.
We designed and made some stainless steel strip rolling mill project and know well each detail of plant layout and note points, welcome customers to contact us!
Stainless Steel coil parameters |
|
Stainless steel material |
200 , 300, 400 series pickled |
Incoming SS coil strip |
550-750mm x 0.65-0.80mm |
Incoming SS coils |
508mm ID, 1800mm OD, 15T |
Cold rolled finished SS coil strip |
550-750 x 0.30-0.45mm |
Reverse Rolling mill parameters |
|
Rolling mill speed |
Max 230m/min, 40-60T/day production |
Rolling force |
Max 10000KN |
Recoiling tension |
Up to 80KN |
Work roller spec. |
Ф185 x 870mm |
Backup roller spec. |
Ф730 x 850mm |
Main motor power |
1100KW |
Recoil motor power |
630KW |
Electric control |
Hydraulic AGC, Siemens RA80 DC Drivers, PLC, X-ray Thickness Gauge system |
Liquid conditions |
Thin oil lubrication for gearboxes, oil gas lubrication for bearing seats, hydraulic stations, rolling process coolant system |
Automatic roller changing |
Hydraulic motor and cylinder drive, to realize automatic roller change |