SMS group : Tandem cold mills (Steel)
For more reliability, safety and efficiency. SMS group has banked 60 years of experience supplying all generations of oil film bearings to rolling mills in the steel and non-ferrous industry worldwide. Today, you can identify our modern and cost-effective roll neck bearings by the SMS group trademark. TEST TEST.
Hot Rolling Press Machine With Winder&Rewinder System For ...
Special four row cylindrical roller bearing for rolling mill, filled with high temperature resistant grease. Roller size. φ300* 400mm. Effective use width. More than 350mm. Roll material. 9Cr3Mo (electroslag remelting) Hardness of roll surface. HSD90-95 . Quenching layer depth of roller surface. ≥ 8mm, roll tempering: HB280-300. Special ...
Ch 13
the roll stand (including the housing, chocks, and bearings, may deflect under high roll forces to such an extent that the roll gap can open up significantly . Schematic illustration of various roll arrangements: (a) four-high rolling mill showing various features. The stiffness of the housing, the rolls, and the roll bearings are all important in
Sheet Metal Bending - Manufacturing Process
Roll Bending . Roll bending provides a technique that is useful for relatively thick work. Although sheets of various sizes and thicknesses may be used, this is a major manufacturing process for the metal bending of large pieces of plate. Roll bending uses three rolls to feed and bend the plate to the desired curvature.
Alcoa -- Aluminum
Alcoa's name is synonymous with innovation. Our roots date to the discovery of aluminum more than 135 years ago, and today we're reinventing the aluminum industry for a more sustainable future. In addition to proprietary alloys and value-add products, we offer commodity grade aluminum and low-carbon aluminum via our Sustana™ product line.
Hot Rolling - an overview | ScienceDirect Topics
5.4.1 Hot rolling of steel. Hot rolling of a 50 mm thick C-Mn steel slab, reduced by 25% in one pass, is presented below. The slab is heated to a uniform temperature of 1050°C and cooled for 15 seconds in air. The process parameters are: roll radius 340 mm, roll velocity 22 rpm, and the friction coefficient is 0.25.
An investigation on the roll force and torque fluctuations ...
the rolling process, especially in a cold strip mill. If the thickness variation of the hot-rolled aluminum strip can be reduced, it will be possible to increase the production speed of the cold strip mill. These claims set new demands on the acceptable rolling forces and torques which, together with the roll pass design, have a significant ...
ALUMINIUM COLD ROLLING MILL CHINALCO SOUTH WEST …
Mill Type 4-high breakdown mill Work roll dimensions 470mm dia x 2000mm Back up roll dimensions 1400mm dia x 1950mm DSR® roll dimensions 1400mm dia x 1950mm Nominal production capacity circa 100,000 tonnes per year - (depending on plant wide scheduling). Max. rolling load 2000 tonnes Maximum mill speed 1900 m/min
Case Studies - Global Roll Technology | Nonwoven Mill Rolls
CS-017: NCCM® Nonwoven Rolls in Ironing Application for Aluminum Mills. Application: NCCM® Premier Yellow as an ironing roll. Executive Summary: NCCM® Premier Yellow in an Aluminum Ironing application. The customer used the NCCM cover in a consumer food market application for ironing aluminum foil.
aluminum mill and ironing roll and control
Ironing Roll For Aluminum Rolling Mill Pdf - montaz-nabytku.eu. aluminum mill and ironing roll and control. How aluminum foil is made - material, manufacture, making, used Aluminum foil is made from an aluminum alloy which ...
Stamping Design Guidelines - Bowmannz
Rolling mills work from master coils, and usually they would have a minimum order quantity ... Gage Steel Stainless Steel Aluminum 7 0.179 - - 8 0.164 0.172 - 9 0.150 0.156 - 10 0.135 0.141 - ... Shearing is a process for cutting sheet metal to size out of a larger stock such as roll stock. Shears are used as the preliminary step in preparing ...
US3770636A - Dispersion for hot rolling aluminum products ...
this invention relates to an oil-in-water dispersion for the hot rolling of aluminum in which the oil phase contains from 2 to 8.5% fatty alcohols and from 5 to 95% polybutene. the dispersion provides for improved lubrication properties for hot rolling and improved surface characteristics of the resultant sheet products.
Rolling mill roll eccentricity control - Kaiser Aluminum ...
The invention relates to the control of rolling mill backup roll eccentricity by combining the load carrying characteristics of rolling mill tapered roller bearing assemblies during rolling with prescribed levels of axial thrust to effect a controlled deflection of backup roll necks on a 4-high rolling mill or the like due to the selected thrust force applied axially to the ends or necks of ...
Dynatect Manufacturing | Dynamic Equipment Protection
Dynatect Manufacturing supplies dynamic equipment protection and motion control products. Our Brands: Gortite®, Gortrac®, Polyclutch®, LSI & RoLab.
Achenbach OPTIMILL® Aluminium Foil Rolling Mills ...
CONCEPTS Achenbach foil rolling mills are four-high rolling mills designed for two different applications:. Universal foil rolling mills for all strip thicknesses from 0.7 mm to 0.006 mm for a wide range of rolled products; Specialised foil rolling mills for foil rolling lines for graduated strip thicknesses.; Specialised foil rolling mills come in three types:
Aluminum Cold Rolling Mills by Primetals Technologies ...
It further includes all relevant gauge and flatness control algorithms for all thickness ranges and alloys. Primetals Technologies has successfully automated Aluminum Cold Mills all over the world, cooperating with world-class Aluminum producers. Our references cover all mill types for Aluminium Cold Rolling.
Fundamentals of Roll Cooling and Control of Flatness at ...
FUNDAMENTALS OF ROLL COOLING AND CONTROL OF FLATNESS AT PRIMARY COLD REDUCTION (DARON LLOYD MANAGING DIRECTOR, LECHLER LTD) PREAMBLE 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, ...
Belt Wrappers | Coilers | Machine Concepts
Common Features. Heavy duty welded steel construction throughout. Configurations for overwinding or underwinding. Automatic Hydraulic or pneumatic belt tensioning. Many rubber and/or steel belting options. Custom designs to match existing line layouts.
Pressure Controlled Roll to Roll Hydraulic Calendering ...
1 AOT-HRP-300C Hydraulic Roll to Roll pressure controlled Calendering machine is an Automatic Battery Electrode Rolling Press System with precision digital pressure control. The pressure can be adjusted easily by touch screen. The biggest rolling press width is 300mm. 2 It is with tension controlled feeding and winding devices with the electric ...
Reclamation of spent aluminum rolling coolant oils ...
Fluids are used in rolling mills to control friction of the rolls against the workpiece, remove heat from the process and carry away the wear-debris produced. ... the manufacturing of aluminum cans by a drawing and ironing process, the cold rolling of steel and so forth. These contain one or more emulsifiers including conventional emulsions ...
Product Gallery | Machine Concepts
Gallery - Machine Concepts is a custom machine builder in Ohio that specializes in specialty automation, robotics, press auxiliary equipment, and other machining equipment.
1450mm Foil Doubling Machine - China Aluminum Plate ...
The main control desk is equipped with the payoff reel tension set, line speed set, and pressure set for ironing roll etc. The operating status, pump start up, line switch on, doubling oil spray control and status and trouble alarm ect. can be displayed on the touch screen.
Hot Rolling Scrap Reduction through Edge Cracking and ...
Defects Control Improving Energy Efficiency in Hot Rolling by Increasing Recovery Rates Hot rolling of large ingots is the predominant process for producing plate, sheet, and foil aluminum products. Hot rolling has typical recovery rates of 82%, because 18% of the original material is lost as planned end cuts and scalping, or as incidental
THE MECHANICS OF TENSION CONTROL
and rewind zones is very dynamic. Roll diameters are constantly changing, so torque and speed must be constantly adjusted relative to changing roll diameters. Tension and speed in the internal zones is much more stable since roll diameters in these zones does not change. However, some control is required to set and maintain desired levels. Web
Why does aluminium rolling mill performance decline ...
As the mill is utilised more, the owner will push the mill to its limits, increasing speeds and reductions. At the higher values, the ancillary functions of the mill may perform less well and problems with surface quality, oil carry-over and ironing roll control may become constraints.
Aluminium Rolling Lubrication: part 1 - Innoval Technology
Aluminium Rolling Lubrication: part 1. In the industrialised world, approximately 50% of all aluminium alloys used is in the form of flat rolled products. Over the last 35 years major changes have taken place in aluminium rolling lubrication development and understanding. It is now accepted that the rolling lubricant strongly influences both ...
Technical Article Rolling Mills Revamp
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.
Troubleshooting roll defects - causes and corrective actions
Abrupt change in rider roll loading: Better control of rider roll loading. Out-of-round roll. A defect that can be identified because of a flat section on the outside of the roll. The core is not in the center of the roll. Roll wound too soft: Wind roll tighter. Severe impact: Provide for proper handling, storage and transport of roll.
1700 mm Achenbach Aluminum Foil Finishing Rolling Mill: FM ...
THIS MILL HAS BEEN TAKEN OFF THE MARKET BY THE OWNER. PLEASE INQUIRE SO I CAN QUOTE YOU WHEN AND IF THE MILL COMES BACK ON THE MARKET. Manufacture: - Achenbach - Model: 4-Hi 850/280 - New 1990 - Revamping 1997 = New AFC + AGC Control - Revamping 1999 = Back up rolls, polished device installed - Revamping 2004 = New Ironing …
1700 mm Achenbach Aluminum Foil Finishing Rolling Mill: FM …
1700 mm Achenbach Aluminum Foil Finishing Rolling Mill: FM-108 / Very nice foil mill complete / dismantled. THIS MILL HAS BEEN TAKEN OFF THE MARKET BY THE OWNER. PLEASE INQUIRE SO I CAN QUOTE YOU WHEN AND IF THE MILL COMES BACK ON THE MARKET. Manufacture: - Achenbach - Model: 4-Hi 850/280 - New 1990 - Revamping 1997 = …