Application of Hot Rolling Lubrication on a Reversing Coil ...

ing hot rolling mills, several con-cerns arise, i.e., bite and roll slippage and effectiveness. This paper studies the mechanism of roll lubrication of the reversing hot rolling mill theoretically and investigates the effect of the roll lubrication on mill separating force, …

FEATURING ROLLING AND PROCESSING

to roll thin hot strip in a finishing mill of a CSP line and in a conventional hot-strip mill. The goal is to achieve improved strip thickness performance and operational stability. Primetals Technologies has developed a new control concept for rolling ultra-thin hot-rolled strip in the finishing mill of an ESP line.

HOT ROLLING MILL FACTORY AUTOMATION with …

Contemporary hot rolling mill factory automation is a PLC based, computerised, fast acting and reliable system. This easy-to-use, user friendly, intelligent and fail safe automation system together with the years of experience on the hot rolling process, yields increased quality and

The Hot Rolling Process

The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77,000 hp, and finally coiling up the lengthened steel sheet for transport to the next process.

Hot Rolling Mill Hydraulic Gap Control (HGC) thickness ...

accuracy in thickness control in metal rolling area. If the required accuracy of hot rolling mills can be achieved, then in some cases, cold rolling is not even required, which can result in a radical decrease of production costs. The schematic structure of a typical aluminum hot reversing rolling mill …

Macro Defects in Steel - Rolling Defects

Scratch - Continuous annealing line - Rolling defects Scratch - Hot strip mill - Rolling defects Scratch - Hot-dip galvanizing line - Rolling defects Scratch - Stainless steel strip - Rolling defects Scratch - Tinning - Rolling defects Scratch from cold rolling mill - Stainless steel defects - Rolling defects

rolling operation or roll mill its types and application ...

tandem rolling mill or continuous rolling mill: tandem rolling mill process. It is a modern rolling mills and the rolling is done by one pass. The rolling is done in several passes for traditional several stands and reduction that take place successive roll. The number of stands like as 2 to 18. Those are either hot or cold rolling mill types.

Computer Simulation of Hot Rolling of Flat Products ...

Nov 06, 2016· Hot rolling process of flat products is a complex process involving plastic deformation of steel, multi-mode heat transfer, microstructure evolution and elastic deformation of rolls and strips. Computer simulation of this process is essential for design modifications of mill hardware and optimization of process parameters to achieve desired product quality with minimum processing cost …

ROLLING - Primetals Technologies

By default, the strip width in a hot-strip mill is deter-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 width-spread anomaly occurring inside the finish-ing mill. The behavior of width spread in a finishing mill

The Planetary Rolling Mill

This is very close tolerance for hot rolled strip. One Planetary Mill can effect the same percent reduction as a continuous mill of eight stands each of which produced a thirty percent reduction. While this dissertation primarily concerns the Planetary Rolling Mill, in many instances a very brief

Hot and Cold Rolling Explained | Capital Steel & Wire

Rolling processes date back to 1779. The first rolling mill was built in Fontley, Hampsire where Henry Cort developed and received patents for his ideas. The two types of temperature-dependent rolling processes are hot rolling and cold rolling, and they each have their own specific use. Hot Rolling

How the Operations of Hot Rolling Mill Works - Deem Rolls

There are two major types of rolling mills, and one is hot rolling mills and second is the cold rolling mills. Let's see how the operation of hot rolling mills works. Knowing the process will allow you to find the right rolling mill rolls manufacturer easily.

animation of hot rolling mill - operapiacavallini.it

Designing of Hot Strip Rolling Mill Control System. Hot Strip Rolling, Coiler, Tension Control 1. Introduction In most modem hot rolling procedure, the strips are coiled up in continuity.Coiling is the last key production step in hot rolling procedure, which is done by the coilers.

What are main Types of Rolling mill? - mech4study

May 02, 2017· Rolling mills are used to perform rolling process. These machines are available in different shapes and size according to requirement of the process and due to technical issues. Every rolling mill consist minimum two rolls. These numbers can extend according to the process requirement. Today we will discuss about all types of rolling mills used ...

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.

THE NEW GLOBAL COMPETENCE IN HOT ROLLING

hot rolling mills. The demands related to the capabilities of a conventional hot rolling mill have changed in the last years. In addition to the high level of output and productivity, the demand for quality improvement is still growing up. Safety and energy saving become a very important aspect. Today there is a clear trend in developing new steel

Hot rolling mills (Aluminum) | SMS group

Hot rolling mills for aluminum Hot rolling. Home Plants All Plants Hot rolling mills (Aluminum) Flexible concepts for Aluminum strip and plate. You are guaranteed to benefit from our long-standing technological expertise in hot rolling processes for the aluminum industry. Out of this comes highly developed technology, automation and service ...

Some Basics of Rolling and Rolling Mills – IspatGuru

May 30, 2013· Some Basics of Rolling and Rolling Mills . ... Hot strip mill were developed in America in the first half of the twentieth century. Basic concept of the rolling. The arc of contact between the rolls and the metal is a part of a circle. The coefficient of friction is constant in theory, but in reality it varies along the arc of contact. ...

Hot rolling | SMS group

Our plants give you what you need to respond flexibly to market demands. What you can expect from our hot rolling mills are high productivity and cost-effectiveness. Depending on your final products and production volume, we develop custom solutions - wherever you are in the world.

Billet Reheating Furnace, Rolling Mill Furnace, Pusher ...

Reheating Furnace is the heart of any hot rolling mill where in the charge is heated to rolling temperature.The charge could be in the form of billets, blooms, slabs or ingots.The type of furnace could be pusher, walking hearth or walking beam – either top fired or top and bottom fired.The fuel used could be either oil or gas.

A BASIC UNDERSTANDING OF THE MECHANICS OF …

Secondary scale on hot strip and the impact 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

Advanced Process and Quality Control in Hot Rolling Mills ...

Rolls and rollers are the most heavily used parts of a rolling mill. Due to wear from contacting hot material with great force, their lifetime is limited. Although rolls are refurbished in the roll shop regularly, they occasionally crack before the end of the usual production cycle.