tandem mill back up rolls
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tandem mill back up rolls

Back Up Roll - Mill Rolls Manufacturer Kaida Roll

Description. Equipped with one of the best back up roll brands, Kaida Roll Group is one of competitive skin pass mill roll, temper mill roll, tandem mill roll manufacturers and suppliers in China, welcome to visit our website. Forged steel back-up roll is mainly used in 4-Hi mill and 6-Hi mill

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Premature failure analysis of forged cold back-up roll

2011-9-1  A spalled sample from a forged back-up roll used in a 5 stand 4 Hi tandem mill was investigated. The chemical composition and detailed specifications of the forged back-up and work cold rolls are given in Table 1, Table 2, respectively.The sample was washed thoroughly with running distilled water, rinsed and ultrasonically degreased with acetone and dried.

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(PDF) Premature failure analysis of forged cold back

Experimental procedureA spalled sample from a forged back-up roll used in a 5 stand 4 Hi tandem mill was investigated. The chemical composition and detailed specifications of the forged back-up and work cold rolls are given in Tables 1 and 2 microstructural and fractographic examinations.

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Tandem mill - Sumitomo Metal, Industries Ltc

What is claimed is: 1. A tandem mill comprising a plurality of stands, characterized in that the final stand is a sleeve expanding mill, at least one of the stands exclusive of the last stand is a sleeve sliding mill or an intermediate back-up roll shifting mill, and the other stands are common four-high mills.

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PRODUCT CATALOGUE FORGE - gontermann-peipers

2019-9-17  The above rolls are of following applications-•Hot cold mills Back-Up rolls •Continuous Semi-Continuous hot strip mills Back-Up rolls •Roughing 4-High stands Back-Up rolls •Cold tandem mills Back-Up rolls •Thick plate mill Back-Up rolls These rolls are characterized by the following properties : •Higher hardness penetration

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A BASIC UNDERSTANDING OF THE MECHANICS OF

2003-10-15  on wear is another issue. Stresses from Hertzian pressure in 4-high cold mill back up rolls were measured years ago, the results were never published, but of high interest - also, maybe later. K. H. Schröder July 2003 K. H. Schröder: A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS File: SCHROEDER_ROLLS_010703.DOC

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Forged Steel Roll - Back Up Roll For Rolling Mill TINVO

2020-2-27  Forged Steel Back Up Roll Definition. The forged back up roll is a mill roll that supports the work roll and intermediate roll for the purpose of avoiding deflection of the work roll and affecting on the yield and quality of the plate and strip rolling mill. This is the key function of back up roll to ensure the operation of the whole rolling mill. The common materials are 9Cr2Mo, 86CrMoV7 ...

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Genesis of spalling in tandem mill work-rolls: Some ...

Macroscopic investigations of spalled 3% Cr-variety forged steel work-rolls used in the tandem mill of an integrated steel plant showed steel strip welding on roll surfaces. Microstructural observations of roll samples at regions away from strip-welded zones showed the desired uniform dispersion of fine globular carbides in tempered martensite. Quantitative image analysis of all investigated ...

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SMS group GmbH: Tandem cold mills (Steel)

The production of high quality strip in volumes of up to 2.5 million tons per year poses an enormous challenge. Perfect for such an operation are SMS group tandem cold mills - our powerful flagships in the cold rolling sector. You can operate them in either batch or continuous mode as CTCM (Continuous Tandem Cold Mill).

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Back-up Rolls

Back-up Rolls Publish time 2018-07-06 13:55 By our long experience, coupled with advanced manufacturing facilities and processes, we can supply the back up rolls with premium quality for both cold mill, tandem mill, skin pass mill as well as hot strip mills.

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(PDF) Premature failure analysis of forged cold back

Experimental procedureA spalled sample from a forged back-up roll used in a 5 stand 4 Hi tandem mill was investigated. The chemical composition and detailed specifications of the forged back-up and work cold rolls are given in Tables 1 and 2 microstructural and fractographic examinations.

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Premature failure analysis of forged cold back-up roll

In this paper, premature failure of a forged back-up roll from a continuous tandem mill was investigated. Microstructural evolutions of the spalled specimen and surface of the roll were characterized by optical microscopy, X-ray diffraction, scanning electron microscopy and ferritscopy, while hardness value of the specimen was measured by Vickers hardness testing.

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Backup roll contour of a SmartCrown tandem cold

Abstract SmartCrown was a new system developed by VAI for improving the strip profile and flatness control first applied in 1700 mm tandem cold rolling mills at Wuhan Iron Steel (Group) Corporation (WISCO). After tracing and testing, the application of the conventional crown backup roll matching the SmartCrown work roll of the production mill led to heavy and nonuniform wear, and the edge ...

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Sun Hau Industrial Co., Ltd. = Mills / Pipe mould /

2021-4-21  Tandem mill rolls can be produced up to a maximum weight of 60 tonnes. The maximum finished weight limit for plate mill rolls is 170 tonnes. Tandem mill back-up roll can be supplied with barrel hardness levels within the range 55 to 75 Shore C. Surface hardness is constant throughout the

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Rolls For Cold Rolling Mill – Loyal Road Inc.

Work rolls for tandem mill and skin pass mill: Backup Roll. Forged steel back-up roll is mainly used in 4-Hi mill and 6-Hi mill. The diameter of roll barrel is 350~1800mm. The material of back-up roll includes 60CrMo, 9Cr2Mo, 86CrMoV7, 70Cr3Mo, 5Cr5NiMoV etc. Nam e: Type of material:

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Forged Steel Back up Rolls - Csroll

2021-6-4  Chodan Sazan produces forged steel back up rolls for hot and cold strip mills. These rolls are used in continuous, Semi Continuous and Steckel Hot Strip Mills, also Tandem Cold Strip Mill and Temper Mills. PDF

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Premature failure of work-rolls in tandem mill: Some ...

The microstructural features of prematurely spalled tandem mill work-rolls were examined in an attempt to correlate microstructure with spalling behavior and roll performance. Spalled samples were collected from work-rolls that had shown variations in roll life under similar conditions of mill usage. Optical microscopy revealed that a fine dispersion of spheroidal carbides in a matrix of ...

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SMS group GmbH: Tandem cold mills (Steel)

The production of high quality strip in volumes of up to 2.5 million tons per year poses an enormous challenge. Perfect for such an operation are SMS group tandem cold mills - our powerful flagships in the cold rolling sector. You can operate them in either batch or continuous mode as CTCM (Continuous Tandem Cold Mill).

More

53´´ (1346mm) 4 Stand Continental 4-hi Tandem Mill

Back Up Rolls: 60" (1524mm) Wide x 48" (1219mm) Diameter Work Rolls: 60" (1524mm) Wide x 20" (508mm) Diameter 5% - 75% Reduction Depending on Grade and Width Production Capabilities: 75-80,000 tons per month. 80 tons per hour. Mill Includes: Entry Coil Conveyor Coil Box Entry 4 Stand Tandem Cold Mill -Post Area: 27" (686mm) x 32" (813mm)

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Back-up Rolls

Back-up Rolls Publish time 2018-07-06 13:55 By our long experience, coupled with advanced manufacturing facilities and processes, we can supply the back up rolls with premium quality for both cold mill, tandem mill, skin pass mill as well as hot strip mills.

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商豪實業有限公司 = 鍛造背輥 工輥 / 合金鋼胚,輥輪/

2021-4-21  Tandem mill rolls can be produced up to a maximum weight of 60 tonnes. The maximum finished weight limit for plate mill rolls is 170 tonnes. Tandem mill back-up roll can be supplied with barrel hardness levels within the range 55 to 75 Shore C. Surface hardness is constant throughout the

More

Backup roll contour of a SmartCrown tandem cold

Abstract SmartCrown was a new system developed by VAI for improving the strip profile and flatness control first applied in 1700 mm tandem cold rolling mills at Wuhan Iron Steel (Group) Corporation (WISCO). After tracing and testing, the application of the conventional crown backup roll matching the SmartCrown work roll of the production mill led to heavy and nonuniform wear, and the edge ...

More

Automatic rolling mill: history of tandem rolling mill

2021-5-21  Tandem rolling mills benefits. The insertion of this new kind of machinery brings countless benefits compared to the old system. Production. One of the most interesting aspects is the reduction of production time: with train of rolls is possible more wire reductions simultaneously;; The number of passages to obtain a specific dimension is inferior compared to the old system, the manufacturing ...

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Backup Rolls - 4HI-6HI, रोलिंग मिल in Kolkata,

The diameter of roll barrel is 350~1400mm. The material of back-up roll includes 60CrMo, 9Cr2Mo, 86CrMoV7, 70Cr3Mo etc. The main types of mills: back-up roll of 650mm Mill, 900mm Mill, 1050mm Mill, 1250mm Mill, 1450mm Mill. BIEC BACKUP ROLLS ARE USED IN 4 HI and 6 HI REVERSING AND TANDEM MILLS FOR ALL PRODUCT ROLLING SUCH AS STEEL , STAINLESS ,

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Premature failure of work-rolls in tandem mill: Some ...

The microstructural features of prematurely spalled tandem mill work-rolls were examined in an attempt to correlate microstructure with spalling behavior and roll performance. Spalled samples were collected from work-rolls that had shown variations in roll life under similar conditions of mill usage. Optical microscopy revealed that a fine dispersion of spheroidal carbides in a matrix of ...

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Forged Steel Back up Rolls - Csroll

2021-6-4  Chodan Sazan produces forged steel back up rolls for hot and cold strip mills. These rolls are used in continuous, Semi Continuous and Steckel Hot Strip Mills, also Tandem Cold Strip Mill and Temper Mills. PDF

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China High Alloyed Cr3~Cr5 Steel Back-up Roll for

2021-5-24  China High Alloyed Cr3~Cr5 Steel Back-up Roll for Cold Rolling Mills, Find details about China Forged Roll, Forged Stee Backup Roll from High Alloyed Cr3~Cr5 Steel Back-up Roll for Cold Rolling Mills - TSR Metals Tech Co., Ltd.

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53´´ (1346mm) 4 Stand Continental 4-hi Tandem Mill

Back Up Rolls: 60" (1524mm) Wide x 48" (1219mm) Diameter Work Rolls: 60" (1524mm) Wide x 20" (508mm) Diameter 5% - 75% Reduction Depending on Grade and Width Production Capabilities: 75-80,000 tons per month. 80 tons per hour. Mill Includes: Entry Coil Conveyor Coil Box Entry 4 Stand Tandem Cold Mill -Post Area: 27" (686mm) x 32" (813mm)

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(PDF) Failure Analysis of Rollers in mill stand using ...

Keywords: Rollers, Failure mode Effect Analysis Introduction In rolling mill operation a four roll high stand intermediate mill, two-stand pre finishing mill stand tandem mills including two work rolls and two and a ten-stand rod finishing mill..In this study more back-up rolls are used to decrease force and power of than fifteen failure modes ...

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Backup roll contour of a SmartCrown tandem cold

Abstract SmartCrown was a new system developed by VAI for improving the strip profile and flatness control first applied in 1700 mm tandem cold rolling mills at Wuhan Iron Steel (Group) Corporation (WISCO). After tracing and testing, the application of the conventional crown backup roll matching the SmartCrown work roll of the production mill led to heavy and nonuniform wear, and the edge ...

More

Automatic rolling mill: history of tandem rolling mill

2021-5-21  Tandem rolling mills benefits. The insertion of this new kind of machinery brings countless benefits compared to the old system. Production. One of the most interesting aspects is the reduction of production time: with train of rolls is possible more wire reductions simultaneously;; The number of passages to obtain a specific dimension is inferior compared to the old system, the manufacturing ...

More

PRODUCT CATALOGUE FORGE - gontermann-peipers

2019-9-17  The above rolls are of following applications-•Hot cold mills Back-Up rolls •Continuous Semi-Continuous hot strip mills Back-Up rolls •Roughing 4-High stands Back-Up rolls •Cold tandem mills Back-Up rolls •Thick plate mill Back-Up rolls These rolls are characterized by the following properties : •Higher hardness penetration

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Products : Japan Advanced Roll Co., Ltd.

2018-6-28  Back Up Rolls for Hot Strip Mill. Rolls for Cluster Type Sendzimir Mills. Forged Rolls. ... The current product range includes HSS rolls and super-HSS rolls for use in tandem mills that roll electrical steel sheet and other materials with high hardness for which there is strong demand as a result of factors such as the growing market for ...

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Forged Steel Back up Rolls - Csroll

2021-6-4  Chodan Sazan produces forged steel back up rolls for hot and cold strip mills. These rolls are used in continuous, Semi Continuous and Steckel Hot Strip Mills, also Tandem Cold Strip Mill and Temper Mills. PDF

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4 Stand Mesta Tandem Cold Mill (used) VX Machinery

Rolls: Work Rolls - 21.8" x 66" face x 151.5" long - 10,572 Lb. each Back Up Rolls - 56" x 64.75"x 179.25" long - 59,900 Lb. each Roll Neck Bearings: Roller bearing work rolls, Morgoil back up rolls Mill stopped production January 2012 Many rolls, chocks, bearings, and unused spares Scope of Supply: Coil pay off and reel Pinch roll

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Coupled Pickling Line Tandem Cold Mill - Primetals

Main benefits of Primetals Technologies' coupled pickling line and tandem cold mill. Highest production rates. Uniformly pickled surfaces. Saving energy, reduce acid consumption. Closed loops of acid, fume, and rinse circulation reduce operating costs in an environmentally friendly manner. Optimized yield.

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(PDF) Failure Analysis of Rollers in mill stand using ...

Keywords: Rollers, Failure mode Effect Analysis Introduction In rolling mill operation a four roll high stand intermediate mill, two-stand pre finishing mill stand tandem mills including two work rolls and two and a ten-stand rod finishing mill..In this study more back-up rolls are used to decrease force and power of than fifteen failure modes ...

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Forged Steel Rolls - Lehigh Heavy Forge

Forged Steel Rolls. Lehigh Heavy Forge produces a full range of forged work rolls, back-up rolls, and specialty rolls for ferrous and nonferrous rolling mills. Our forged rolls are unsurpassed in strength and reliability. No matter the application, Lehigh Heavy Forge manufactures forged steel rolls to your exact metallurgical and dimensional ...

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Sendzimir Products Z-High® Mills

As a conversion of a 4-High mill to a "dedicated" Z-High® mill and optionally widening the mill at the same time. As a new Z-High® mill with smaller diameter back-up rolls, smaller chocks and smaller mill housings due to reduced RSF requirements of the Z-High®, as compared to 4-High mill of the same width.

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