What is rolling mill main purpose?

rolling mill is to achieve process equipment. It refers to the completion of the whole process of rolled production equipment, including major equipment, auxiliary equipment ﹑ lifting and transport equipment and ancillary equipment.

rolling equipment to achieve the process. It refers to the completion of the whole process of rolled production equipment, including major equipment, auxiliary equipment, lifting and transport equipment and ancillary equipment. But the general said the mill often refers only to the main equipment. Rolling out the gold and silver plate, used to make coins.

According to Variety rolling mill type and nominal size named. "Nominal size" principle of type
Rolling mill, the gear housing is herringbone gear pitch diameter naming; blooming mill rolls nominal diameter places named; strip mill is the work roll barrel length name; steel mill to produce the maximum diameter named. Sometimes also named after the inventor of the mill.

Backup roll and roll to keep a fixed position in the rack. Roller bearing heavy workload changes, thus requiring the bearing friction coefficient is small, with sufficient strength and stiffness, but also easy to replace rollers. Different mills choose different types of roller bearings. Rigid large rolling bearing, the friction coefficient is small, but smaller bearing capacity and larger size, and more for strip mill work rolls. There are two kinds of semi-dry friction sliding bearing friction with the liquid. Semi friction roller bearings mainly bakelite, copper tile ﹑ nylon pad bearing, cheaper, and more for section mill and machine breakdown. Liquid friction bearings ﹑ static dynamic pressure and static - dynamic pressure three. The advantage is the coefficient of friction is relatively small, a larger bearing capacity, the use of high operating speed, rigidity, the disadvantage is speed varies with the film thickness. Liquid friction bearings are used for strip mill backup roll and other high-speed mill.

Lifting the roller and prevent roll by rolling out the impact of the means used. Form: ﹑ spring is used in the section mill; hammer type commonly used in the roll movement of large blooming mill; hydraulic, the use of the four-roll strip mill.
In order to improve the operating rate required of Rolling Mill rapid ﹑ convenient. Roll change methods are C-shaped hook ﹑ sleeve ﹑ car type and machine frame to change a roll of four. With the first two methods rely on the roll change auxiliary crane operation, and the whole frame roll changing need for two sets of rack, this method is used for small mills. Roll change car suitable for large mill, is conducive to automation. Today, all using fast automatic roll changing device on the mill rolls for once only 5 to 8 minutes.

Machine ﹑ gear housing and connected by a motor shaft ﹑ deceleration components. Gear holder will drive torque distributed to two or more rolls.
Auxiliary equipment includes a series of auxiliary equipment during rolling process. Such as raw material preparation heating ﹑ ﹑ ﹑ turning steel cutting machine, straightening ﹑ cooling ﹑ inspection ﹑ ﹑ heat treatment pickling and other equipment.
Lifting and transport equipment crane truck ﹑ ﹑ roller and transfer machines.

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