It is a special type of four high rolling mill in which each of the two working rolls is backup by two or more of the larger backup rolls for rolling hard in materials It may be necessary to employ work rolls of a very small diameter but of considerable length In such cases adequate of the working rolls can be obtained by using a cluster mill
4-Hi Reversible CRM Main DC motor power 1000KW 1 set Recoiler DC motor power 300KW 2 sets Rolling speed 250 m/min 6 supporting rollers with diameter of 600 mm 8 support rollers base Work roll diameter 165mm Standby: 185KW recoiler DC motor 1 set
A 300-mm-wide strip 25-mm thick is fed through a rolling mill with two powered rolls each of radius = 250 mm The work thickness is to be reduced to 22 mm in one pass at a roll speed of 50 rev/min The work material has a flow curve defined by K = 275 MPa and n ,
MACSALAB Rolls Crusher size '0' and '1' are designed for secondary reduction after jaw crushing These smooth roll crushers will rapidly reduce coal, ore and hard rock from maximum feed size of ,
Jan 08, 2014· Extend the size range of products already rolled on an existing mill For example, providing a design for 8 mm X 3 rebar on a mill that already rolls 10 mm X 2 rebars Redesigning passes of an existing product to roll the same cross section out of a different material
A two-stand reversing cold mill can deliver capacities between 300,000 t/a of thin-gauge products or 1,000,000 t/a and more of thicker-gauge products Main benefits of Primetals Technologies' reversing cold mills High production capacity and yield; Flexible, low-cost rolling of a wide range of products, especially for small order lots
of 60 mm in a single pass Assume the coefficient of friction µ = 02 Is the desired reduction feasible without any external force? A two-high non-reversing rolling mill (shown below) with 750 mm diameter rolls made of tool steel is available for this task The rolling mill has a power capacity of 5 MW per roll
800 mm（Min outer diameter） Material thickness：18-25 mm（Pickling coil） , High-quality roller grinder; , Used 4Hi Skin Pass Mill; Used Roll Grinder; 1250mm 6 Hi reversible cold rolling mill ; Used 4Hi Double Stand Cold Rolling Mill; Aluminum Foil Cold Rolling Mill; Used 1450mm Cold Rolling Mill; Used 6Hi Cold Rolling Mill;
Question: A Series Of Cold Rolling Operations Are To Be Used To Reduce The Thickness Of A Metal Plate From 50 Mm To 20 Mm In A Reversing Two-high Mill Roll Diameter = 600 Mm, And Coefficient Of Friction Between Rolls And Work = 015 The Specification Is That The Draft Is ,
blooming mill[′blümiŋ ‚mil] (metallurgy) A rolling mill for making blooms from ingots Also known as cogging mill Blooming Mill a high-capacity rolling mill for the reduction, into blooms, of steel ingots of large cross section, with masses up to 12 tons and larger In some cases a blooming mill is used for the rolling of slabs and also shaped .
Two-roll mills Strongly designed Two-Roll Mills of any size and for any application are ready to our customer´s disposal Many years experience on this field is transferred on very powerful equipment Having a full control on manufacturing process on the mill rolls give us a large advantage
750 Millimeters (mm) 2952756 Inches (in) Millimeters : The millimeter (SI symbol mm) is a unit of length in the metric system, equal to 1/1000 meter (or 1E-3 meter), which is also an engineering standard unit 1 inch=254 mm
A 750 mm diameter calender roll for example, ground perfectly, will go out of shape tolerance if the temperature exceeds a variance of 12 ºC , done at the mill or at an outside roll shop Published September 13, 2013 Practical Roll Techniques: Grinding & Balancing
LINE II ‐TWENTY ROLLS REVERSIBLE SENDZIMIR COLD ROLLING MILL JUL15 HJK Consulting Engineers ©®2015 6 Payoff Max coil weight 24 t Coil inside diameter 610 mm Coiloutside diameter 1950 mm Mill’s Motor(General Electric) Payoffmotor (only for firstrollingpass) 1 ,
Feb 10, 2012· 6 High Reversible Cold Rolling Mill , Of roll Diameter (mm) Ra (micron) change Work roll 425 (max) 380 (min) 05 – 06 500 tonnes Intermediate rolls 490 (max) 440 (min) 06 – 07 1000 tonnes Back up rolls 1250 (max) 1050 (min) 06 – 08 10000 tonnes 5 , 6 HIGH REVERSIBLE MILL TOP BACK UP ROLL TOP INTERMEDIATE ROLL TOP WORK ROLL BOTTOM .
(HV) (%) (µ) (Carbide/mm2) M 3C 850-1100 6 - 7 8 14 x 105 DESCRIPTION This alloy is used for both work rolls and intermediate rolls in all types of ferrous and nonferrous cold mill applications Grade 3CRMO is also used as a back-up roll grade in small diameter rolls (
Billet mills, three-high, rolls from 24 to 32 inches in diameter, used for the further reduction of blooms down to 15x15-inch billets, being the nubpreparatory mills for the bar and rod; Beam mills, three-high, rolls from 28 to 36 inches in diameter, for the production of heavy beams and ,
Product Data INVICTA Forged High Speed Steel (HSS) Union Electric , Work roll cold strip mills: tandem and reversible mills Roll performance Wear resistance Roughness retention Resistance to incidents Campaign length Comparative properties * : standard work roll 5% Cr 850 800 750 700 650 900 850 800 750 700 650 100 200 300 400 500 600 0 25 .
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