Roll Pada Roughing Mill

  • Achenbach OPTIMILL® Aluminium Foil Rolling Mills ...

    Achenbach OPTIMILL® Aluminium Foil Rolling Mills ...

    Universal rolling mills for a wide range of foil products differ from special rolling mills, such as the one for the production of µm condenser foils. Within foil rolling lines they are typically designed as roughing mills, intermediate mills and finishing mills. For each new strip rolling mill or those to be modernized, a holistic approach to perfectly synchronize mechanics, hydraulics ...

  • Mengetahui Proses Pembuatan Hot Rolled Coil (HRC) Dan ...

    Mengetahui Proses Pembuatan Hot Rolled Coil (HRC) Dan ...

     · Telah dilakukan kerja praktek di salah satu unit produksi PT. Krakatau Steel yaitu Hot Strip Mill (HSM). HSM merupakan salah satu divisi di PT. Krakatau Steel dimana produk utamanya berupa HRC (Hot Rolled Coil). Produk dari divisi HSM ini banyak digunakan pada kerangka kapal laut dan pesawat terbang. Scale merupakan masalah yang harus diperhatikan pada.

  • Rolling Mills: 6 Different Types of Rolling Mills [Images ...

    Rolling Mills: 6 Different Types of Rolling Mills [Images ...

     · In this tandem mill types of rolling mill, It includes of a number of nonreversing twohigh rolling mills provide one after other. So that the material can be passed through them all in order. This is only suitable for mass production work, as lower volumes require a quicker change of set up and they will consume a lot of labour and work. Conclusion. So now, we hope that we have clear all ...

  • SMS group : Camber free rolling for roughing stands

    SMS group : Camber free rolling for roughing stands

    You face rolling problems in the finishing mill and an increased likelihood of tail end breaks. This is where camberfree rolling comes in. It's based on the interaction of roll alignment control integrated in our automation system and strong, positioncontrolled side guides in the roughing mill stand entry and exit sections. Here's how it works: The slab contact with the strong, position ...

  • Rolling Mill Stands – IspatGuru

    Rolling Mill Stands – IspatGuru

     · Rolling Mill Stands. The purpose of rolling is to convert material of large crosssections of long work pieces into smaller sections of various shapes. This deformation is accomplished by applying compressive forces through a set of two rolls which rotate in opposite directions, the space between the rolls being less than the thickness of the entering material. In the rolling process, material ...

  • (PDF) Camber and wedge compensation in hot strip rolling

    (PDF) Camber and wedge compensation in hot strip rolling

    This is especially true if the roll gap adjustment is selfretaining, meaning that it cannot be adjusted during a rolling pass. In this work, such a roughing mill and its edger rolls are ...

  • 3B(2) Deformation of Rolling Mill

    3B(2) Deformation of Rolling Mill

    The mill modulus is 5001,000 ton/mm for plate rolling mills and 400600 ton/mm for cold rolling mills. The larger the diameter of the backup rolls, the higher the mill modulus. A rolling force of the order of 1,000 tons is generated during rolling, so that mill deformation of more than 1mm occurs. Unless this deformation is taken into account, thickness accuracy cannot be ensured ...

  • Hot Rolling Mill Rollers of Steel Mills

    Hot Rolling Mill Rollers of Steel Mills

     · Hot Rolling Mill Rollers of Steel Mills 1. Department of Metallurgical and Materials Engineering, IIT Kharagpur Course: Material Design and Selection A brief presentation on Hot rolling mill rolls (steel plant) Basic funda " The Chemical Composition and Microstructure of the roll need to be changed for different stands, from roughing till finishing stand " 09MT3018 Piyush Verma 4th year ...

  • New Trends in Hot Strip Mill Roughing Mills ...

    New Trends in Hot Strip Mill Roughing Mills ...

    Figure 1: Dominant roughing mill work roll grades in the world Figure 2: History of HSM roughing mill work roll Grades 1950 2010 WORK ROLLS GRADES FO R ROUGHING STANDS Chemical composition The typical chemical compositions of the main roughing roll grades used nowadays in hot strip rolling are listed in table 1. This table indies the main elements such as Carbon, Chromium, .

  • Rolling Mill Rolls

    Rolling Mill Rolls

    Plate Heavy Plate Mill. Roughing Work Roll: Finishing Work Roll: Backup Roll . Cold Strip Mill. Work Roll Intermediate Roll Temper Mill Roll: Backup Roll . Heavy Section Mill and Beam Mill. BD Roll: Edger Roll: Roll Shaft: Desicription: The main working parts and tools on the rolling mill that cause continuous plastic deformation of metal. Appliion: rolling mill. Advantage: Raw Material ...

  • Rolling Mill Machine

    Rolling Mill Machine

     · 4. Mesin roll kluster (cluster mill) 5. Mesin roll tandem (tandem roll mill) 1. Mesin roll dua tingkat. Mesin roll ini mempunyai diameter sekitar 0,6 sd 1,4 m. Roll ini dapat bekerja secara bolakbalik (reversing) atau searah (nonreversing). Rol yang searah selalu berputar pada arah yang sama dan benda kerja selalu dimasukkan dari sisi yang sama.

  • Mengetahui Proses Pembuatan Hot Rolled Coil (HRC) Dan ...

    Mengetahui Proses Pembuatan Hot Rolled Coil (HRC) Dan ...

     · Kehadiran scale akan banyak menimbulkan masalah pada baja hasil pengerolan (rolled in scale, ca permukaan, dll) Berdasarkan perhitungan terhadap nilai Δ G (energi Gibbs) reaksi pembentukan scale, yaitu pada bagian exit furnace ( T = 1200 0 C), exit first roughing mill (T = 1000 0 C) dan exit laminar cooling/entry DC ( T = 650 0 C) bernilai negative, yang artinya pembentukan scale .

  • 1994 Asymmetrical rolling and selfexcited vibration in a ...

    1994 Asymmetrical rolling and selfexcited vibration in a ...

    hot roughing mill Ali Asghar Jafari University of Wollongong Research Online is the open access institutional repository for the University of Wollongong. For further information contact Manager Repository Services: morgan Recommended Citation Jafari, Ali Asghar, Asymmetrical rolling and selfexcited vibration in a hot roughing mill, Doctor of Philosophy thesis, Department of ...

  • Hot Rolling | Nippon Yakin

    Hot Rolling | Nippon Yakin

    Nippon Yakin's roughing mill handles plate rolling as well as rough bar rolling for strips with sophistied hydraulic screw down system. The original physical model of rolling of the process computer enables optimum rolling pass schedule calculations for each product. Primary Specifiions; Roughing Mill fourhigh reverse mill: Roll Separating Force 4,000 tons maximum: Speed: 314 m/min ...

  • FAG Rolling Bearings for Rolling Mill Appliions ...

    FAG Rolling Bearings for Rolling Mill Appliions ...

    in rolling mills. Tapered roller bearingsare separable. Despite thisfact, however, itisnot possible – asisthe case with cylindricalroller bearings– to first fitthe inner ringsonto the roll neck, fitthe outer ringsinto the chockand finallyslip the chock onto the rollneck. The complete bearing hasto be mounted into the chock, and then the chocktogether with the bearing pushed onto the ...

  • PROTUCT

    PROTUCT

    Hot roll, it is based on the slab as raw material, after heat made strip roughing and finishing mill group. From finishing the last hot steel strip mill out through laminar flow cooling to the set temperature, Angle of the winder coil, steel coil after cooling. More+. Message. ASTM A514 high strength steel plate.

  • Properties of Hot Rolled Strip Obtained By Calculation or ...

    Properties of Hot Rolled Strip Obtained By Calculation or ...

    The layout of the hot strip mill of voestalpine Stahl is shown in Fig. 1. Slabs are heated to rolling temperature in the reheating furnace, subsequently descaled and rolled in the roughing stand to the transfer bar thickness and after a second descaling step rolled to the final thickness, cooled on the run out table and coiled. The ...

  • Modeling the Microstructural Evolution during Hot Working ...

    Modeling the Microstructural Evolution during Hot Working ...

    During rolling in the roughing mill and during transportation, the temperature of the transfer bar decreases and before entering the finishing mill it is ~1000°C. Before entering the finishing mill, the new layer of oxide scale is removed and the irregular head and tail end are generally cut off, leaving an even edge to enter the first pass. In the finishing mill, the bar is rolled down to ...

  • Rolling of steel in Hot Strip Mill – IspatGuru

    Rolling of steel in Hot Strip Mill – IspatGuru

     · The roughing mill also contains edger rolls which are used to roll the edge of slab and center it. The hot strip mill can be either a high performance mill or a compact mill. The difference in the two mill types is the coil box which, in compact hot mills, is installed between the roughing and the finishing mill. It equalizes the transfer bar temperatures to the effect that with as few as six ...

  • Table of Contents Rolling Mill Bearings

    Table of Contents Rolling Mill Bearings

    Vertical Edger Rolls for Roughing Section of Finishing Mill Bearings used in this appliion must have high radial and axial load carrying capacity. Therefore, NSK KV type, four roll tapered roller bearings and in some mills, NSK KH type, two roll tapered roller bearings are used. Special heavy duty roller retainer designs are used because of the high axial forces and misalignment. Low radial ...

  • Technical Report UDC 621 . 771 . 25 Progress of Bar and ...

    Technical Report UDC 621 . 771 . 25 Progress of Bar and ...

    rolling mills (8 stand roughing rolling mill, 4 stand intermediate rolling mill, and 4 stand finishing rolling mill) was built by MorganSumitomo Heavy Machinery Co. Ltd.. In the 1980s, the aimed quality of products was shifted toward highvalueadded special steel quality, and, to achieve this, in 1986, a threeroll finishing rolling mill (applied to products of 13–70 mm in diameter) was ...

  • Analysis of Spalling in Roughing Mill Backup Rolls of Wide ...

    Analysis of Spalling in Roughing Mill Backup Rolls of Wide ...

    The roughing mill withstood extreme service conditions with long service cycles for backup and work rolls, a large variety of the same width rolling campaigns, severe and non‐uniform wear contours of backup and work rolls. Analysis of cyclic stress applied on backup rolls indied that contact stress played a dominant role in rolling contact fatigue which led to spalling on the backup roll ...

  • ROLLING

    ROLLING

    mined by edging and rolling the strip in the roughing mill. The width deviation after the finishing mill arises from the width deviation in front of the finishing mill and from widthspread anomaly occurring inside the finishing mill. The behavior of width spread in a finishing mill depends on effects in roll bite and on the creep defor mation between the stands, whereby the width spread in ...