Work Roll Chock For Foil Mill

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Work Roll Chock For Foil Mill

FAG Rolling Bearings in Rolling Mills

the roll bodies is accompanied by removal of the chocks. This is a demanding exercise in the case of non-separable bearings, such as spherical roller bearings, whose inner ring is fitted tightly on the roll neck. In the case of cylindrical roller bearings, the chock can be removed together with the outer ring and roller cage from the inner

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(PDF) Structural Analysis of work roll chock and backup ...

the design opti mization of work roll chock and backup Roll chock in cold rollin g mill, to control the failure o f choke in the cold rolling mill for retain the material cost and longer life of ...

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Bearings for Rolling mill Rolls – IspatGuru

The work rolls in four-high strip mills and the rolls in two-high light-section and wire rod mills are mostly fitted with angular contact ball bearings as axial bearings. The chock arranged on the drive end is not axially located in the roll stand, but is guided on the roll neck by the axial bearing.

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Mechanics of Cold Rolling of Thin Strip - IntechOpen

Mechanics of Cold Rolling of Thin Strip 443 where yiw is the vertical deflection of the work roll at element i, gijw (, ) is the influence function for the work roll deflection due to the combined bending and shear forces generated by rolling load, giwf is the influence function for the work roll deflection due to the force generated by the roll bending mechanism, k represents the …

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Work roll and backup roll bearing chocks of rolling mill

Work roll and backup roll bearing chocks of rolling mill. As we all know, the rolling mill bearing chock is one of the important parts of the rolling mill. During the operation of the rolling mill, it bears the impact force of the steel plate biting and extrusion and the high-cycle alternating stress during the rolling and straightening process.

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CA1122042A - Work roll chock assembly for a rolling mill ...

WORK ROLL CHOCK ASSEMBLY FOR A ROLLING MILL ABSTRACT OF THE DISCLOSURE A rolling mill stand has upper and lower work rolls supported in chocks which include liner plates on their side faces for bearing against the side faces of the mill stand housing, with the side faces of the chocks being shaped so that the liner plates on both the upper and lower work roll …

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Teknointel Metal represents foreign machine manufacturers ...

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 .

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Rolling of Metals

•Roll-strip contact length L •Average strip width w –despite the fact that spreading, or an increase in width, may actually occur if edger mills are not used •Average true stress of the strip in the roll gap Y avg •Assumes no friction and thus predicts lower roll force than the actual value •Power per roll (SI units)= pFLN / 60,000 kW

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Doosan Heavy Industries & Construction

A work roll is a core part of a rolling mill that enters into direct contact with rolling material to make cold rolled carbon sheets (CR) of the desired thickness. Back Up Roll A backup roll is the largest and heaviest roll used in rolling mills, and delivers pressure to …

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Two High Rolling Mills | Metal Processing Machinery ...

3. 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. 4. 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. 5.

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Cold Mill De-Chocker | Machine Concepts

Cold Mill De-Chocker. De-chockers support mill back-up or work rolls on the O.D. or at the neck of the roll. Bearing chock support stands are raised to support the roll chocks allowing removal of the retaining rings and bearing containment components. Once disassembled the bearing chocks are separated from the roll journals.

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Parallel Fast Multipole BEM of Strip Cold Rolling Process ...

In order to improve the efficient and accuracy, parallel algorithm of fast multipole boundary element method (FM-BEM) was presented. Combined with sparse approximate inverse preconditioning (SPAI), GMRES(m) was used to solve the equation system of FM-BEM. The parallel FM-BEM was applied to strip cold rolling process, the results obtained from parallel …

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Roll chocks in Rolling Mill – IspatGuru

The housing of a work roll or backup roll bearing is known as roll chock or simply chock. Chock is the basic part of a rolling mill. It is mounted in the window of the roll stand housing between the posts with a small clearness. …

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Herkules - The Specialist for Roll Machining

Herkules Quality Convinces Novelis Yeongju. WS 450 W × 6,500 CNC Monolith™ grinds back-up rolls for hot and cold rolling mill. More.

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Chatter problems on a cold rolling mill - Innoval ...

They looked for defects in the work roll bearings inner races that were likely to create similar markings to the ones experienced in the cold rolling mill, as shown in figure 3. These defects were present in all the mill work rolls and were likely created during the chocking and de-chocking operations.

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rough chock roll mill - mafaldapegollo.it

work roll chock for foil mill. Z-mill - Wikipedia A Z-Mill or Sendzimir Mill is a, chock-less work roll allows for a quick roll change, while a ZR 32 can roll ultra-thin nonferrous foil down to 0. Roll neck bearings for rolling mill.

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An innovative development of a four-high foil rolling mill ...

During foil or ultrathin strip rolling, elastic deflection variation of the work rolls at the contact surface with the strip causes non-uniform thickness distribution of the product in the width direction, which possibly causes a central wrinkling or an edge fracture on the product. This study developed a four-high prototype rolling mill, comprising two work rolls fabricated from an ...

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(PDF) On the Optimization Procedure of Rolling Mill Design ...

natural crowns of the 2-hi mill with the assigned work roll information. The natural crowns of five 4-hi mills are also calculated using. ... The backup roll chocks are.

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Major greenfield project in the Performance and quality on

four grinding machines: two WS 600 x 6500 CNC universal roll grinding machines for backup and work rolls, and two WS 600 x 6500 CNC Monolith™ work roll grinders. All rolls can be machined with or without chocks, a major advantage in production efficiency. Furthermore, the Monolith™ design of the work roll grinders saves on foundation costs.

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.doc

Concept of the FFC mill Shmaller work roll diameters are required to achieve higher reductions and to roll more difficult mareial such as steel foil or high strength steel because of the necessity to reduce roll separating force and driving torque. ... A reverse bending force is applied to the outer chocks from the plungers contained in backup ...

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(PDF) A JOURNEY TO OPTIMAL ROLLING MILL DESIGN FROM ...

monoblock mill (Figure 8 c) can provide man y advantages of high mill modulus, small work roll, mechanical advantage, precision AGC, and the like[ 13]. The pre-stressed split housing mill,

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Plate mill geometrical restoration for Marcegaglia Palini ...

Marcegaglia Palini & Bertoli contracted Danieli Service to improve plate mill production in San Giorgio di Nogaro, Italy. Danieli Service provided accurate restoration of mill housing geometrical tolerances, recondition existing backup and work roll …

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Succesful modernization of ALUNORF's Hot Rolling Mill 1

SMS group provided the roughing stand with a new mechanical and hydraulic work roll adjustment system for fast roll gap adjustment with high positioning accuracy. Part of the mechanical revamp was also the new back-up roll balancing system with new back-up roll chocks. Also the mill stand service platform and the fume exhaust hood were replaced.

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US Steel sheet roller (one of the pair) and bearing chocks ...

38 votes, 15 comments. 105k members in the Skookum community. This sub is intended to be a place where people come to learn, or teach. (Or have a …

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Effect of Clearances in Mill Stands on Strip End Motion ...

of the mill housing. In a four-high mill assembly, there are two pairs of work roll chocks and two pairs of backup roll chocks. The work roll assembly can …

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US4531394A - Six-high rolling mills - Google Patents

Improved support means for the lateral support roll assemblies of a six-high rolling mill of the type having a pair of housings, a pair of vertically in-line work rolls, vertically in-line back-up rolls, intermediate in-line rolls located between the work and back-up rolls, a lateral support roll on each side of each work roll and a support roller assembly for each of the lateral support rolls.

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Timken rm configs and designs

WORLDWIDE LEADER IN BEARINGS AND STEEL Rolling Mill Industry Training Configurations & Designs Key Points for CRB Back-Up Roll Bearings: • Inner Races Stay with Rolls • Outer Assembly Stay with Chocks • Chock Assemblies Interchangeable from Roll to Roll • Inner Race OD's Can be "Skin Ground" to Extend Useful Life in the Mill ...

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Supply Records – TMC_EN

Back-Up & Work Chock Assembly: 2003: Fata-Huter. Inc.- USA: 4-High Mill Stand Assembly – Back-Up & Work Roll Chock Assembly: 2002: MMI(Bangladesh) S.ALAM INC: MILL Stand Assembly: 2002: Angang Steel Co., Ltd-China: Back-Up Chock Assembly (Plate Mill ) H- Horizontal&Vertical Chock Assembly Edger Chock Assembly: 2002: AMCLYDE ...

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Keeping Your Process at the Centre of Everything We Do

MILL HOUSING WORK ROLL CHOCK WORK ROLL CHOCK BACKUP ROLL CHOCK BACKUP ROLL CHOCK NEGATIVE BEND SERVO POSITIVE BEND SERVO BEND CONTROLLER MEASURED PRESSURES-VE BEND ... Single stand cold & foil mills Process Control Audits Gauge Control Flatness Control Productivity Process Engineering Services 5.

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ROLL GRINDERS AND AUTOMATIC ROLL SHOPS

Cluster, Foil, Cold Mills Work rolls, intermediate rolls, back-up rings Ø max. 450mm Cold & Hot Mill Work and intermediate rolls Ø max. 800mm With and without chocks Cold & Hot Mill Work, intermediate and back-up rolls Ø max. 1800mm With and without chocks Plate & Hot Mill Work rolls, back-up rolls Ø max. 2400mm + With and without chocks

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