tandem mill back up rolls in valparaiso

Tandem Mill Back Up Rolls In Valparaiso

Rolling (metalworking) - Wikipedia

The problem with a small roll is a reduction of stiffness, which is overcome using backup rolls. These backup rolls are larger and contact the back side of the smaller rolls. A four-high mill has four rolls, two small and two large. A cluster mill has more than 4 rolls, usually in three tiers.

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Rolling Mill Backup Rolls Manufacturers and Suppliers ...

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. The diameter of roll …

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Aluminum Mill Rolls - Union Electric Åkers

Our range includes work rolls and back up rolls for hot roughing, reversing, and tandem rolls, cold breakdown rolls, finishing rolls, and foil rolls. Aluminum mill rolls are manufactured at our facilities in the US and Slovenia. Main Roll Grades . The following table gives a general overview of our main grades in this product segment.

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Cold Mill Work Rolls - Union Electric Åkers

Extensive range This market segment covers forged Work Rolls and Intermediate Rolls for use in Wide Cold Strip Mills of 2-high, 4-high, or 6-high types, including reversing Reduction Mills, Tandem Mills, Double Reduction Mills, and Temper/Skin Pass Mills. Our Rolls can be supplied in a number of grades to suit various applications, materials, and rolling conditions. Both electric steel and ESR ...

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Dynamic analysis of vibration stability in tandem cold ...

Oct 01, 2019· The mill stand spring constant is the total stiffness of the whole rolling mill consisting of the rolls and the stand. The mill spring constant is measured by a stiffness calibration test. An FEM model of the UCM mill is developed to obtain the contact load and displacement of each part; the spring constants of the roll can be calculated from ...

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A set-up model for tandem cold rolling mills - ScienceDirect

Oct 24, 2001· In tandem cold rolling mills, strip is rolled on a continuous production line, passing from one mill station to another at high speed without stopping in between the stations. A standard tandem mill will contain about 4–7 individual mill stands as shown in Fig. 1. While operating tandem cold rolling mills, it is observed that the products to ...

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Explain planetary and cluster rolling mills with neat ...

Here each of the work rolls is supported by two backing rolls. It is very typical mill. The sendzimir mill is a modification of the cluster mill with 20 rolls. which is very well adapted to rolling thin sheets or foil from high-strength alloys. Hard materials, including stainless …

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REVERSING COLD MILL - Primetals Technologies

Due to the reversing rolling passes, production efficiency is lower than that of a tandem mill. However, because the rolling parameters can be quickly changed for each coil, reversing cold mills are especially suitable for the small-lot production of various product types. The size of the mill equipment is also smaller, which allows easier ...

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What are main Types of Rolling mill? - mech4study

May 02, 2017· Tandem rolling is also known as continuous rolling in which two or more set of four high rolling mill arranged in a series in which each set is called stand. These stands are arranged so they can roll the work piece in decreasing cross section. It is used for rolling thick work piece in single pass.

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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 …

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A set-up model for tandem cold rolling mills - ScienceDirect

Oct 24, 2001· In tandem cold rolling mills, strip is rolled on a continuous production line, passing from one mill station to another at high speed without stopping in between the stations. A standard tandem mill will contain about 4–7 individual mill stands as shown in Fig. 1. While operating tandem cold rolling mills, it is observed that the products to ...

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Explain planetary and cluster rolling mills with neat ...

Here each of the work rolls is supported by two backing rolls. It is very typical mill. The sendzimir mill is a modification of the cluster mill with 20 rolls. which is very well adapted to rolling thin sheets or foil from high-strength alloys. Hard materials, including stainless …

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Back Up Roll producenter og leverandører Kina - mærker ...

Udstyret med en af de bedste back up roll mærker, Kaida Roll gruppe er en konkurrencedygtig hud pass mill roll, temperament mill roll, tandem mill roll producenter og leverandører i Kina, velkommen til at besøge vores hjemmeside. Smedet stål back-up roll er hovedsagelig anvendes i 4-Hej mill og 6-Hej mill.

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VIBRATION MONITORING OF TANDEM MILLS AT THE …

The 4-stand, 4-high tandem mill is used for making a single product for the automotive industry but the 5-stand mill ... Back-up roll 1422 mm 1200-1365 mm Strip thickness

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rolling operation or roll mill its types and application ...

tandem rolling mill or continuous rolling mill: tandem rolling mill process. It is a modern rolling mills and the rolling is done by one pass. The rolling is done in several passes for traditional several stands and reduction that take place successive roll. ... The number of back- up rolls high as 20 or more depends upon the support heeded for ...

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Types of Rolling Mills | Metallurgy

The arrangement of cluster mill is shown in Fig. 2.9 (d). Type # 5. Multi-High Rolling Mill: The multi-high rolling mill consists of two small diameter working rolls, a row of intermediate driving rolls, and a raw of backup rolls. This arrangement involves a cluster of either 12 or 20 rolls, resulting in exceptional rigidity of the whole roll ...

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What are main Types of Rolling mill? - mech4study

May 02, 2017· Tandem rolling is also known as continuous rolling in which two or more set of four high rolling mill arranged in a series in which each set is called stand. These stands are arranged so they can roll the work piece in decreasing cross section. It is used for rolling thick work piece in single pass.

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McLouth Steel - Wikipedia

Tandem Mill. Mill Stands 60" 4-high, 4-stand continuous. Maximum 3300 feet per minute. Average speed at 2100 FPM. Rolls Back-up roll 53 x 60" Work roll 22 x 60" Width range was 26" to 52" wide. Reduction Capability 1 stand-30%, 2 stand-25%, 3 stand-20%, 4 stand-10% Annealing. 60" Lee Wilson Bases 122 (60 in 1954; 15 in 1955; 47 in 1961)

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Strip Thickness Control of Cold Rolling Mill with Roll ...

Nov 12, 2013· two back-up rolls and two work rolls. A common prob-lem is the back-up and work rolls are not perfectly circu-lar in shape. In other words, the rolls are eccentric. The roll eccentricity effect will, under normal constant oper-ating forces, result in steel strip with undesirable thick-ness deviations 1]. Fuzzy logic provides an inference

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ANALYSIS OF ALTERNATIVES non-confidential report

Figure 19: Trials (T1-5) of forged HSS work rolls in the first two stands of a 5-stand cold rolling tandem mill (steel grades: H300LA and MBW 1500, HSS = forged High Speed Steel rolls, SSt (HV) = standard

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Hot Strip Mill - an overview | ScienceDirect Topics

John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014. 3.5 Friction and Wear. Work rolls in hot strip mills wear due to friction between the roll surface and hot strip. (Back-up rolls wear as well, but under pressure with elastic deformation, the friction is much less, except for the high work roll roughness in the last stand of a sheet rolling tandem cold mill).

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AISTech Paper Form Version 8 140221 - Steel Plantech

5-stand Tandem Cold Mill Most modern Tandem Cold Mill of five (5) stands with all 6-high mill is provided. Positive and negative Roll Benders for Work Rolls and Intermediate Rolls, Roll Shift Device for Intermediate Rolls are provided for all stands. Intermediate Rolls are designed to have SPEOS curves for wider range of strip crown and ...

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(PDF) Review on Cold Rolling Mill Roll Deformation

Back up rolls – 4 . High speed . 4 . 4 Hi ... The Bland ford method used for tandem rolli ng mill. The . MATTER: International Journal of Science and T echnology . Vol. 1, No.1, pp. 83-95, July ...

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Tandem Mill Buyers | Customers of Tandem Mill (Product …

Top buyers of tandem mill from around the world. Panjiva helps you find, evaluate and contact buyers of tandem mill.

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Stability Analysis of a Nonlinear Coupled Vibration Model ...

Mill chatter in tandem cold rolling mill is a major rejection to the quality and production of the strips. In most mill vibration models, either the roll mass is usually limited to vibrate in vertical direction and vertical-horizontal directions, or the multiple rolls system is simplified to a single mass system. However, the torsional chatter is also a typical type of mill chatter, and the ...

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Hot Strip Mill - an overview | ScienceDirect Topics

John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014. 3.5 Friction and Wear. Work rolls in hot strip mills wear due to friction between the roll surface and hot strip. (Back-up rolls wear as well, but under pressure with elastic deformation, the friction is much less, except for the high work roll roughness in the last stand of a sheet rolling tandem cold mill).

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Backup Rolls - 4HI-6HI, रोलिंग मिल in Mahendra Roy …

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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China Intermediate Roll for Cold Rolling Mill - China ...

China Intermediate Roll for Cold Rolling Mill, Find details about China Intermediate Roll, Forged Rollers from Intermediate Roll for Cold Rolling Mill - Yantai Fangle Metallurgy Group Co., Ltd.

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Dale Dougherty - Vice President - Cimcor, Inc. | LinkedIn

Systems Engineer on the 80" 5-Stand Tandem Cold Mill Modernization Project. Wrote Detailed Functional Analysis for Bulk, Roll Bending, and HGC Hydraulic Power Unit's, Human Machine Interface’s ...

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[PDF]

Strip Thickness Control of Cold Rolling Mill with Roll ...

Nov 12, 2013· two back-up rolls and two work rolls. A common prob-lem is the back-up and work rolls are not perfectly circu-lar in shape. In other words, the rolls are eccentric. The roll eccentricity effect will, under normal constant oper-ating forces, result in steel strip with undesirable thick-ness deviations 1]. Fuzzy logic provides an inference

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Types of Rolling Mills | Metallurgy

The arrangement of cluster mill is shown in Fig. 2.9 (d). Type # 5. Multi-High Rolling Mill: The multi-high rolling mill consists of two small diameter working rolls, a row of intermediate driving rolls, and a raw of backup rolls. This arrangement involves a cluster of either 12 or 20 rolls, resulting in exceptional rigidity of the whole roll ...

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Steel - Forming of steel | Britannica

Steel - Steel - Forming of steel: Forming processes convert solidified steel into products useful for the fabricating and construction industries. The objectives are to obtain a desired shape, to improve cast steel’s physical properties (which are not suitable for most applications), and to produce a surface suitable for a specific use.

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GENERAL ASPECTS OF ROLL COOLING FOR HOT & …

proper roll cooling, the required thermal roll crown can be controlled in way to influence the overall roll profile. It is common practice adjusting the roll cooling to the strip width being rolled. Roll cooling is hence an actuator to allow stable rolling conditions of the mill. This is particular true for strip tandem rolling mills with regard to

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Cold Rolling Mill Roll - Kaida Roll Group

Add: No.66 Xingwang Rd, Dong'an, Huangli Town, Changzhou, China Tel: +86-519-6969 5301 Fax: +86-519-6969 5305 E-mail: [email protected]

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Optimal Scheduling of a Tandem Cold Rolling Mill ...

Jun 01, 1972· Typical strip and mill dimensions of a five stand mill are shown below: Work roll diameter 22" Backup roll diameter 54" Roll length 56" Distance between stands 156" Strip entry gauge .070" -.140" Strip exit gauge .010" -.060" Strip width 24" -50" Horsepower of motors 5000 In this paper we will consider the fundamental problem of selecting 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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Rolls-Forged Rolls-Intermediate Rolls

Skinpass Mill Intermediate Roll : General Use : FH-15 : 5% Cr Steel : Tandem Mill Intermediate Roll Reversing Mill Intermediate Roll Skinpass Mill Intermediate Roll : Deep Hardness Penetration : FH-20 : Special Material : Tandem Mill Intermediate Roll Intermediate Roll for Dull Work Roll : High Wear Resistance : FP-7 : Hot Die Steel : Tandem ...

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