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US 4,864,838 A - Drive apparatus for the vertical rolls of ...

Patent US4864838A - Drive apparatus for the vertical rolls of a universal rolling mill stand (US 4,864,838 A); Owner: SMS Schloemann-Siemag Aktiengesellschaft; Filed: 08/14/1987; Est. priority date: 08/14/1986; Status: Expired due to Fees; Abstract: To avoid impacts on the first pass of the rolled product through a universal rolling mill the vertical rolls of the rolling mill can be …


Common Roll Forming Problem - Roll Forming Guide

Roll Forming Tolerances. 2.Bow. The vertical plane deviation from a straight line can be a cross or longitudinal bow, it is caused by uneven vertical gaps on symmetrical cross-sections and uneven forming areas on asymmetrical sections …


Rolling mill with interchangeable roller apparatus - NKK ...

TECHNICAL FIELD. The present invention relates to a rolling mill with interchangeable roller apparatus in which the direction of the rolls in a rolling system for rolling bar steel is shifted from horizontal to vertical or from vertical to horizontal by changing only the rolls, i.e. without having to replace the drive system.


Jar - Bottle Rolling Drives - 911Metallurgist

To determine the size of mill drive required, factors such as the diameter and weight of the jar mill should be considered the largest diameter jar that could be used on this series of roll drives is a 10″ diameter jar, the length of the jar and the number of grinding jars to be used simultaneously. If it were desired to grind four 5″ diameter by 8″ long jars at one time, 4 x 8″ + …


Combined gear box for drive of vertical stand of the ...

Download scientific diagram | Combined gear box for drive of vertical stand of the section rolling mill. from publication: 50 years in the theory and practice of gearing | The author's life line ...


Characteristics of Rolling in a Continuous Billet Mill ...

Characteristics of Rolling in a Continuous Billet Mill with Drive-free Vertical Rolls. Hiroshi Shikano 1), Yoshiaki Kusaba 1), Chihiro Hayashi 1) 1) Research and Development Division, Sumitomo Metal Industries, Ltd. Released 2007/05/31 received 1990/10/15 accepted 1991/02/22 ...


Section Rolling Mill - Steel Plantech

Section Rolling Mill. Rolling mills are facilities that carry out a series of processes including rolling the billets, blooms, slab and beam blanks – extracted from the reheating furnace – into the prescribed size and correcting any bending, cutting …


Cement mills and raw mills for high throughput rates

For extra-large throughput rates: MVR vertical mill with multiple drive. High throughput rates, permanent plant availability, optimized maintenance concepts – features of the MVR mill and the patented MultiDrive ® enabling Gebr. Pfeiffer …


The Hot Rolling Process - California Steel

The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77,000 hp, and finally coiling up the lengthened steel sheet for transport to the next process.


How to Replace the Drive Belt on a Bridgeport Vertical ...

Removing the drive belt in a Bridgeport Milling machine can be a difficult process, but following the correct steps, you can have access to this belt for replacement in a relatively short time. Once you replace the belt, it will be even easier to reassemble the mill and you will have a stronger, more accurate response ...


APPARATUS FOR SUPPORTING YOKES FOR A ROLLING …

The present invention relates to an improvement in rolling mills employed to process strip, sheet or plate, and, more particularly, to such rolling mills which are provided with means for applying crown or contour controlling bending moments to the journals of the backup rolls in the case of a 4-high rolling mill and to the journals of the work rolls in the case of a 2-high rolling mill.


Roller Mill: Components, Designs, Uses, Advantages and ...

Roller mill is a form of compression mill that uses a single, double, or triple cylindrical heavy wheel mounted horizontally and rotated about their long axis either in opposing pairs or against flat plates, to crush or grind various materials.


Roughing Rolling Mill Stand - گروه صنعتی آپاراتوس

Usually in the roughing stand, 5 to 9 stages of rolling mill operations are done in a reciprocal way. Depending on the type and dimensions of the input metal and the type of calibration design, the dimensions of the rollers (length, barrel diameter), dimensions and type of bearings, material and dimensions of the body, drive system and other related elements are designed and executed.


Highest performing Hot Strip Mills | Primetals Technologies

At today's demanding condition, maintaining stable operation of rolling mill is becoming difficult. MSD is a hydraulic cylinder installed to mill housing window and press a roll chock against the opposite side with constant force. MSD eliminates …


Steel | Sumitomo Drive Technologies: USA

Steel Mills. Steel mills demand maximum performance of their equipment, able to withstand 24 hours a day and 7 days a week operations, with high efficiency and low maintenance. We understand that the high shock loads, …


PROCESS DIAGNOSTIC STUDIES FOR CEMENT MILL …

• Vertical roller mill (VRM) • Ring roller mill or Horo mill Even though there are various types of systems available for cement grinding, ball mills are predominantly ... Mill drive 3.58 5000 kW Diaphragm Double blind plate Mill speed 15.2 rpm GM in I chamber 107 t


Roll Handling Equipment | Roll Lifting Equipment

This paper roll clamp with a capacity of 6,000 pounds is used as roll lifting equipment by a major paper mill. Back Up Roll and Chock Lifter This custom designed motorized back up roll and chock lifter was designed to simplify the …


FAG Rolling Bearings for Rolling Mill Applications ...

in rolling mills. Tapered roller bearingsare separable. Despite thisfact, however, itisnot possible – asisthe case with cylindricalroller bearings– to first fitthe inner ringsonto the roll neck, fitthe outer ringsinto the chockand finallyslip the chock onto the rollneck. The complete bearing hasto be mounted into the chock, and then the ...


Rolling mill drive apparatus, rolling mill and rolling ...

A rolling mill drive apparatus for driving any rolls of a pair of work rolls, 2 to 4 intermediate rolls and 2 to 4 backup rolls comprises a drive roller without tooth, rotated by an electric motor, at least one driven roller without tooth, contacting with the drive roller, a load imparting device for imparting a contact load between the drive roller and the driven roller to …


Industrial Roller Mill | Roller Mill Manufacturer ...

Feeders for Vertical Roller Mills. Williams industrial roller mills are used for a wide range of applications and materials, which means that the proper feeder selection is essential for high-capacity, trouble-free operation and more efficient …


SMS group : Ring and wheel rolling machines

SMS group has banked almost 100 years of experience in ring and wheel rolling. This dates back to Keller & Banning Maschinenfabrik und Eisengießerei (machine works and iron foundry) and Wagner Maschinenfabrik. Today, our ring and wheel-rolling activities stand for innovative technology, precision, and top quality.


Roller Mill Maintenance00 - CPM

Roller mills are used around the feed mill to perform a variety of tasks. Applications include crumbling pellets, cracking corn, dry rolling and steam flaking grain, and grinding corn, wheat, or milo for mash and pelleted feeds. While each application has some unique


Roll crossing apparatus for cross-rolling mill ...

It is, therefore, an object of the present invention to provide a roll crossing apparatus for a cross-rolling mill, which can be small and manufactured at a reasonable cost. Another object of the present invention is to provide a roll crossing apparatus of a cross-rolling mill which can be easily retrofitted to an existing parallel rolling mill.


Roller mills: Precisely reducing particle size with ...

The more roll pairs the mill has, the greater the size reduc-tion it can achieve. For instance, reducing salt feedstock to coarse road salt requires a roller mill with one roll pair, while reducing the material to table salt requires a mill with two or three roll pairs. More about the feeding device. The feeding device is inte-gral to the ...