work roll material in20 hi mill

Bronze Liners and Wear Plates for Metal Rolling Mills ...

Nov 20, 2014· In addition to a high quality end product, use of the proper bronze liners can minimize maintenance costs. ... choosing the liner material based on the mill type and liner location improves the performance of the equipment. ... In mills of a Mae West design, the work roll chocks contact the Mae West block. Since work rolls are frequently ...

1103 STSI Procceding - Technische Universität München

with respect to damage of the roll material. The last section presents some concluding remarks and gives an outlook on future investigations. High chromium iron (HiCr Iron) and high speed steel (HSS) are standard materials for the outer operating region of work rolls employed in finishing stands of hot strip mills.

Calculator for Rolled Length of Roll of Material

Calculates the rolled length of a roll of material when the outside diameter of the material, thickness of the material, and the diameter of the hole in the center or the tube on which the material is wound are given. ... An example of rolled material would be a rolled carpet or a rolled sheet of paper from the paper mill. The length units that ...

Mill Rolls - Kennametal

Mill Rolls. Kennametal manufactures mill rolls from cemented tungsten carbide grades tailored for the demanding environment of hot rolling mills that produce wire rod and seamless tube. We deliver mill rolls as unfinished blanks, semi-finished rolls with ground inner diameter and thickness, or rolls fully finished to your drawing.

Mill Rolls | WHEMCO

WORLD CLASS ROLLS OF THE HIGHEST QUALITY FOR OVER 100 YEARS. The WHEMCO companies in Pennsylvania and Ohio, USA manufacture a full range of mill rolls – spun cast iron, cast steel and forged steel. Each of our roll manufacturing facilities has the expertise, equipment and experience to meet the most demanding rolling mill applications.

ROLLS FOR ROLLING MILLS

Guaranteed features of solid-forged backup rolls for cold- and hot-rolling mills High and uniform hardness after power current hardening (within 1-2 HSD over the barrel) Effective layer depth is min. 40–100mm over the radius High strength of the roll material combined with ductility No tendency towards cracking or barrel surface spalling

HPGR High Pressure Grinding Rolls

HPGR or high-pressure grinding rolls have made broad advances into nonferrous metal mining. The technology is now widely viewed as a primary milling alternative, and there arc a number of large installations commissioned in recent years. After these developments, an HPGR based circuit configuration would often be the base case for certain ore types, such as very hard, abrasive ores.

PHYSICAL METALLURGY OF A HSS MATERIAL FOR HOT …

PHYSICAL METALLURGY OF A HSS MATERIAL FOR HOT ROLLING MILL ROLLS Jacqueline L ... rolling mills with regards to strip's surface quality appearance and for better productivity of the rolling mills. The work roll performance in the Finishing Mill has a direct impact on the following major cost aspects: ... high temperatures are defining ...

Corrosionpedia - What is a Z-Mill? - Definition from ...

The Z-mill uses cascaded supporting rolls instead of using a single pair of rolls to apply force on the small work rolls in the center. The Z-mill is designed to make heavy reductions at high speeds and used to roll both ferrous and non-ferrous metals. Very hard and elastic materials can also be rolled by Z-mill.

Metal Rolling - Manufacturing Process

In a metal rolling process, rolls, stands, bearings, housing, motors, and other mechanical equipment are all a necessary part of the manufacturing operation. The place where all the equipment for metal rolling manufacture is set up is called a rolling mill. Rolling mills often vary in …

A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING …

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

Rev1 Recent Development of Skinpass Mill and Tension …

sheet made of a Hi-Ten material and for soft steel sheet like EDDQ; the diameter of a work roll for the former is desirable to be smaller and the diameter of a work roll for the latter is desirable to be larger for a stable operation, so the installation of a 4Hi dual diameter roll skinpass mill equipped with 2 kinds of work roll diameter is

Leon mill Roll China co.,ltd

Leon Roll China is a manufacture From China,Localed in Changzhou jiangsu, near Shanghai and Baogang steel,we are a casting and machining foundry who can produce cast iron roll.steel rolls.cold rolls.roller rings,cast forged mill roll metallurgy roll for roll mill.

CUTTING-EDGE COLD-ROLLING MILLS | Primetals Technologies

The most common configuration is the single reversing mill. Various mill designs are offered that include 6-high UCMs (Universal Crown Control Mill), ZR mills and 12-high cold-rolling mills with small-diameter work rolls for the efficient rolling of materials of high hardness.

China 9cr3mo Steel Cold Rolling Mill Roll with High ...

Machinery, Spare Parts, Steel Casting manufacturer / supplier in China, offering 9cr3mo Steel Cold Rolling Mill Roll with High Quality, Roller Bearing, Cylindrical Roller Bearing for Pillow Block, Roller Bearing for Pillow Block Bearing/Bearings Housings and so on.

Rolls-Forged Rolls-Cold Mill Rolls

Material Substance Main Usage Characteristics FH-8 : 2% Cr Steel : Stainless High Brightness Skinpass Roll : High Brightness : FH-11 : 3% Cr Steel : Tandem Mill Work Roll Reversing Mill Work Roll Skinpass Mill Work Roll : General Use : FH-15 : 5% CR Steel : Tandem Mill Work Roll Reversing Mill Work Roll Skinpass Mill Work Roll : Deep Hardness ...

mechanical engineering: Types of rolling mills

In two high reversing rolling mills the rolls rotate ist in one direction and then in the other, so that rolled metal may pass back and forth through the rolls several times. This type is used in pluming and slabing mills and for roughing work in plate, rail, structural and other mills.

Sendzimir | Products | 20-High Mills

20-High Mills. Sendzimir's 20-High mills are unique in that they have a small, chockless work roll and a cluster roll configuration supported by the Backing Assemblies. The cluster configuration transmits the roll separating force from the work rolls to the mill housing.

1. Hot rolling and rolling defects: 1.1 Front and back ...

use stiffer rolls, namely roll material of high stiffness or elastic constant, we could avoid mill spring. Normally elastic constant for mills may range from 1 to 4 GNm-1. Roll elastic deformation may result in uneven sheet thickness across. Roll material should have high elastic modulus for reducing the roll …

Temper Passing | Metal Processing Machinery | American Steel

A temper mill is also used to make cold rolled after annealing to assure a consistent quality. After the material is made hot rolled, it needs to be pickled and cold reduced. Cold reducing increases the yield strength and the material can be too hard to be used for any type of deep draw work …

Three Roll Mill - Mixers

Products > Three Roll Mills > Three Roll Mill How the Three Roll Mill Works. The material to be milled is placed between the feed and center rolls. Each adjacent roll rotates at progressively higher speeds. For example; the feed roll may rotate at 30 rpm, the center roll at 90 rpm and the apron roll at 270 rpm.

Cold Mill Rolls | Work Rolls | Backup Rolls | Backup Rolls ...

P S Rolls: manufacturers of all kinds of industrial rolls Psrolls - We are manufacturer of rolls and roll assemblies complete with bearing assemblies & other components manufacturing. cold mill rolls, work rolls, backup rolls, backup rolls sleeves, induction hardened rolls. rolls for cold rolling mills, hi rolls, hi rolls, skin pass rolling ...

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.

Steel Rolls - Adamite Steel Rolls, SG Iron Rolls ...

Our range of steel rolls includes adamite steel rolls, SG Iron rolls, indefinite chill rolls, rolling mill rolls, rolls for non metal industries, work rolls, leveller rolls, six high mill work rolls, backup rolls, cold strip work rolls, plate work rolls and sendzimir mill rolls. Adamite Steel Rolls : We provide high quality adamite steel rolls.

Rolling (metalworking) - Wikipedia

Hot rolling is a metalworking process that occurs above the recrystallization temperature of the material. After the grains deform during processing, they recrystallize, which maintains an equiaxed microstructure and prevents the metal from work hardening. The starting material is usually large pieces of metal, like semi-finished casting products, such as slabs, blooms, and billets.

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