tandem mill back up rolls in valparaiso manufacturer Grasping strong production capability, advanced research strength and excellent service, Shanghai tandem mill back up rolls in valparaiso supplier create the value and bring values to all of customers.
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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.
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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.
Hydrodynamic roll-neck bearings from SMS group are highly advanced and elementary components of modern rolling mill technology. That's because they support the load-bearing backup rolls. Even under extremely tough operating conditions, they ensure long roll service life and minimal maintenance outlay.
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 ...
Our Precis. Founded in the year 2011, we, Bajrang Tools And Rolls Pvt. Ltd., are a distinguished Manufacturer, Supplier and Exporter of a broad range of Cold Rolling Mill Rolls and Hot Rolling Mill Rolls used in mills. These products are widely used in the metal forming industry owing to their robust design, outstanding performance and minimal maintenance.
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
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.
In 1985 the oil film bearings for the back-up rolls of a 5-stands tandem cold mill (installed in 1954) were replaced by the rolling bearings (4-row cylindrical roller bearings). Since then many tandem cold mills built before 1980 have been modifi ed by replacing the oil fi lm.
Add: No.66 Xingwang Rd, Dong'an, Huangli Town, Changzhou, China Tel: +86-519-6969 5301 Fax: +86-519-6969 5305 E-mail: sales@kdroll
Complete line projects include Coupled Pickling & Tandem Cold Strip Mill (PL-TCM) for POSCO Gwangyang Works and Bridle & Steering Unit line for POSCO VST STS SPL. Equipment supplied includes Leveler Roll Assembly for Steel Dangjin Works, Back Up Roll Assembly at JFE Steel Chiba Works, and Pinch Roll Assembly at Dongkuk Steel Dangjin Works.
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 ...
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.
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
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
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 .
Tandem mills – A tandem mill is a type of rolling mill where rolling is done in one pass. In a traditional rolling mill rolling is done in several passes, but in tandem mill there are several stands (>/=2 stands) and reductions take place successively. ... These back up rolls have a further set of backing rolls in the third tier. Sendzimir ...
Abstract: For gaining strip edge drop controllability and increasing roll grinding precision, the edge drop control work roll (EDW) was developed and designed in 1700 mm tandem cold rolling mill. During the rolling trial, the roll configuration between EDW and conventional backup roll didn't match well because of the large fluctuation of ...
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 ...
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
The cluster mills consist of two working rolls with small diameter and four or more backup roll with larger diameter. The number of back- up rolls high as 20 or more depends upon the support heeded for the working roll. It cluster mill is used for cold rolling process. Application of rolling process:
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.
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 ...
Jul 16, 2019· In this type of rolling mill, each of working roll is backed up by two or more larger backup rolls. These rolls are arranged as shown in figure. This rolling mill are used in rolling hard thin materials. For rolling hard thin materials, it may be necessary to employ work rolls of very small diameter but of considerable lenght . In such cases ...
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