Casting/Forged steel mill work rolls backup roller manufacturing for hot rolled metal sheet and billet mill usage
||stainless steel,carbon steel,sus ect.
|thickness of pipe
|Scope of application
||Conveying equipment, belt conveyor, mine, cement plant, power plant, wharf, coal mine, metallurgy, chemical industry and so on.
Rolling mill for hot rolled or cold rolling metal sheet or billets etc.
Different functions of rolls rollers for steel mills:
Backup rolls - are intended to provide rigid support required by the working rolls to prevent bending under the rolling load.
Rolling balance system - to ensure that the upper work and back up rolls are maintained in proper position relative to lower rolls.
Roll changing devices - use of an overhead crane and a unit designed to attach to the neck of the roll to be removed from or inserted into the mill.
Mill protection devices - to ensure that forces applied to the backup roll chocks are not of such a magnitude to fracture the roll necks or damage the mill housing
Roll cooling and lubrication systems.
Pinions - gears to divide power between the two spindles, rotating them at the same speed but in different directions.
Gearing - to establish desired rolling speed.
Drive motors - rolling narrow foil product to thousands of horsepower.
Electrical controls - constant and variable voltages applied to the motors.
Coilers and uncoilers - to unroll and roll up coils of metal.
Slabs are the feed material for hot strip mills or plate mills and blooms are rolled to billets in a billet mill or large sections in a structural mill. The output from a strip mill is coiled and, subsequently, used as the feed for a cold rolling mill or used directly by fabricators. Billets, for re-rolling, are subsequently rolled in either a merchant, bar or rod mill. Merchant or bar mills produce a variety of shaped products such as angles, channels, beams, rounds (long or coiled) and hexagons.
DESCIPTION of Work Rolls or Backup Roller:
1) Material: Alloy Steel, Alloy Iron, Ductile Iron namely 9Cr3Mo, 70NiMoV etc.
2) Standard: GB, AISI, SAE, ASTM/ASME, EU, AS/NZS etc
3) Size: According to clients' drawing or design needs
4) Hardness: based on design specification
5) Chemical Composition and mechanical property: as specified.
we can do various customized work rolls ranging in different sizes and processes. please feel free to make any enquiries accordingly.