We supply a widest range of WORK ROLLS used for Rolling Mill of different dimensions and strength as per the custom requirement of the client. some more specification of the rolling mill work rolls are 2 Hi Mill work Roll, 4 Hi Mill work Roll, 6 Hi Mill work Roll, 2nd Intermediate roll, 20 Hi Mill Roll, 20 Hi Work Roll.
A.P. 996, 64000 Monterrey, NL, Mexico. ´. Accepted 11 January 1999. Abstract. Samples from a couple of work rolls employed in a hot rolling steel strip mill were examined by scanning electron ...
Rolling mill consisting of four rolls or known as a 4 High rolling mill is used for reducing material to extremely small thicknesses. Through the use of larger backup rolls, the issues of roll deflection can be avoided and smaller work rolls can be used.
They are mainly applied to finishing mill, hot&cold rolling mill work rolls, back-up rolls. Adamite roll or high speed steel roll used in the early finishing stands of a lot strip mill. Description: 1)Material: Alloy Steel, Alloy Iron, Ductile Iron and so on 2)Size: According to clients' drawing
The advantage of an ASP designed 6-high rolling mill is the design of a small diameter work roll with zero crown making the work rolls easy to grind straight. Quick, easy to replace small work rolls by hand or small fixture, as no coil cart or crane are necessary. The mills built by ASP are equipped with sliding gear type universals that drive ...
In the process of Rolling the most significant aspect is the generation of heat through friction and deformation in the roll bite and in a typical Cold Tandem Mill, work roll temperatures normally fall in the range of 55oC – 70oC with strip recoil temperatures and inter-stand strip temperature rarely exceeding 160 oC depending on product.
The WHEMCO companies in Pennsylvania and Ohio, USA manufacture a full range of mill rolls – spun cast iron, cast steel and forged steel. We manufacture both cast and forged rolls for the most flat hot and cold rolling applications. We are now the sole producer of both cast work rolls and backup rolls in North America.
6 Rolling Mills Revamp: Roll Upgrades for Extreme Loads Figure 5: Roll load and fillet radius detail. Case Study – Existing Solution and Problem Description This application is performed on rolls of 2-HI mills, but could be extended to the back-up rolls of 4-HI mills. Figure 5 shows the roll load and current fillet radius detail.
A core product of Union Electric Åkers Thousands of Hot Strip Mill Work Rolls come off of our production lines each year, making Union Electric Åkers one of the world's largest roll manufacturers of Hot Strip Mill Work Rolls. All our Hot Strip Mill Work Rolls are made using the vertical centrifugal casting method, ensuring high in-service integrity and premium …
Within the next few years, the CVC ® system was integrated in a large number of various types of hot rolling mills due to its simple and efficient operating principle combined with robust and reliable mechanical equipment. As to the mechanical systems, distinction is made between the so-called longstroke system with movable bending blocks and the short-stroke …
finishing mills, which will roll the steel in tandem with one another. The workhorse roughing mill has 135" wide rolls for rolling 'broadside' (as the first roughing mill is commonly called) to make a slab wider. A 5,000 hp motor drives 42"-diameter work-rolls through 28:1 gears to reduce the slab's thickness by …
In the rolling process, the job is drawn through a set of rolls due to interface friction, and the compressive forces reduce the thickness of the workpiece or change in its cross-sectional area.. The types of rolls used in rolling mills are depended upon the shape, size and the gap between the rolls and their contour. Because of workability and limitations in …
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 …
in u.s. pat. no. 4,631,948, the work rolls are maintained in a fixed horizontal position in the mill frame, offset relative to the backup rolls, and are supported in the horizontal direction by...
rolling. Rolling mill configuration and four high stand of reversing cold mill are shown in figure 1 and 2 respectively. Figure [1] Rolling mill configuration 3. Types of Roll Chocks The roll chocks are broadly categorized into 4 types which is shown in fig 3Top Back up Roll Chock 1. Top Work Roll Chock 2. Bottom Work Roll Chock 3.
US7637132B2 US11/541,627 US54162706A US7637132B2 US 7637132 B2 US7637132 B2 US 7637132B2 US 54162706 A US54162706 A US 54162706A US 7637132 B2 US7637132 B2 US 7637132B2 Authority US United States Prior art keywords scraping work rolls work rolls scraper Prior art date Legal status (The legal status is an assumption and is not a legal …
Flat Rolling •Roll Force: F= LwY avg •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 …
rolls for rolling mill. 1. INTRODUCTION MACHINERY AND METALLURGICAL ROLLS USED IN ROLLING MILL SINOM GROUP CO., LTD. ROLLS BRANCH FACTORY 2016 VERSION. 2. …
Appropriate work roll shifting strategy in the finishing hot strip mill can make roll wear uniform and contour smooth. To eliminate the problem of roll shifting position duplication due to available roll shifting strategy, the optimized work roll shifting strategy is proposed in the hot strip rolling mill with continuous variable crown work rolls, using the k-nearest neighbors …
The Mill Stand spring curve is obtained by pressing the Work Rolls together with increasing force. This causes the Work Rolls to bend, the Screw-downs to compress and the Mill Housings to stretch. To reduce Work Roll bending, a much larger roll is positioned above the top Work Roll and another is placed below the bottom Work Roll.
rolls for rolling mill. 1. INTRODUCTION MACHINERY AND METALLURGICAL ROLLS USED IN ROLLING MILL SINOM GROUP CO., LTD. ROLLS BRANCH FACTORY 2016 VERSION. 2. SINOM@SINOMGROUP Machinery and Metallurgical Rolls SINOM GROUP CO., LTD. ABOUT US Rolls branch factory is a specialized manufacturer of rollers …
Rolling balance system - to ensure that the upper work and back up rolls are maintained in proper position relative to lower rolls 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.
Work roll latches • In the closed position, the latches are connecting the Work roll chocks with the CVC-shifting cylinder. In roll change the latches must be opened so that the work rolls (WR) can be removed from the …
Roughing Mill Work Rolls Synergy 500 & 700 FORGED STEEL WORK ROLLS 3 - 5 Cr Alloy Forged Steel 15.7 – 31.4 inches diameter 220 inches maximum overall length 13.2 tons maximum finished weight CAST STEEL BACKUP ROLLS Monoblock Alloy Cast Steel 72 inches maximum diameter 360 inches maximum overall length 75 tons maximum finished weight
LPR offers forged steel rolls and cast steel rolls to steel mills, steel processing lines and for machine makers that supply to steel rolling mills. Product range includes forged steel work rolls, tension leveling rolls, bridle rolls, furnace rolls, deflector …
"Hard chrome plating of work rolls for cold rolling and skin-pass" 2002. Q. My steel company intends to install a new state-of-the-art hard chrome plating plant for plating of work rolls of cold rolling and skin-pass mills. Material to be processed: Carbon and alloy steel oiled rolls.
Cluster rolling mill A cluster rolling mill is a special type of four-high rolling mill in which each of the two working rolls is backed up by two or more of the larger backup rolls which are able to roll hard materials. It may be necessary to employ rolls of a very small diameter but of considerable length to achieve the desired outcome.
Banding typically appears on ICDP (indefinite chilled double pour) work rolls in the early finishing stands of hot rolling mills, even after rather short campaign times. Banding is also possible, when high chrome work rolls are used after longer run times in …
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