hot strip mill process

Hot strip mill

Before we can start rolling out the slabs, they need to be heated until they reach a temperature of around 1.000° to 1.270° C. This is done in the reheating furnaces of the hot strip mill. A slab coming out of the furnace has a scale layer that …

Tata Steel | Making of Steel

The hot metal is converted into steel through a steelmaking process called the LD process. Flat Products: The steel is cast into slabs, which are then rolled into hot rolled coils in the Hot Strip Mill & Thin Slab Caster. Some of the hot rolled coils are further rolled into cold rolled and galvanisedcoils in the Cold Rolling Mill. Long Products:

HOT STRIP MILL PROCESS CONTROL SYSTEM

The hot strip mill process computer system was developed and installed earliest at Sumitomo Metals. The control functions and their degree of accuracy have been increasing, to achieve high productivity, high quality, energy-saving, and high yield. Accordingly, process computer system has been enlarging and becomes indispensable to plant operation.

Strip Crown Prediction in Hot Rolling Process Using …

2021-1-18 · where (h_{{text{c}}}), (h) and (h^{prime }) are the thicknesses at the center, 40 mm on the left side and 40 mm on the right side of the strip, respectively.. As is shown in Fig. 2, the simplified diagram of the studied rolling process includes six finishing mills, and all finishing mills are HCW (high crown mill with work roll shifting) that only consists of back up rolls and …

Process Control in Hot Strip Mill | Industrial Efficiency …

2017-9-13 · Improved process control of the hot strip mill may lead to indirect energy savings through reduced product rejects, improved productivity, and reduced down time. The primary aim is to control the oxygen level, and hence optimize the combustion in the furnace, especially as the load of the furnace may vary over time. The savings depend on the load factor of the furnace …

Looper-Tension H ∞ Control for Hot Strip Finishing Mills

2011-5-10 · Abstract. Abstract: Abstract: The development of an innovative H∞ controller for. looper and tension control in hot strip finishing mills is traced based on. approximately linearized model. This solution has been considered thanks to. its well-known robustness and simplicity characteristics concerning. disturbances'' attenuation.

Hot Strip Mill and Cold Rolling Mill | Industry …

2022-6-28 · Hot rolling. This process stretches a slab into a strip. The slab is reheated to approximately 1250°C and rolled in hot conditions. The resultant strip steel is wound into a roll like toilet paper (hot coil). Chains for lifting; …

Gauges for Hot Strip Mills

Hot Strip Mills. Description. RM 215 HM X-ray Thickness Gauging System. Measuring Gap. C-frame air gap custom to suit application. Depth (English) C-Frame Throat. Custom to suit application, C-frame Width 7.87 to 15.75 in. - …

2020 Technology and Operation of a Hot Rolling Mill

2020-1-3 · The descaling operation on a Hot Strip Mill (HSM) uses high pressure water jets to remove the thick, hard and brittle oxide scale, in order to avoid oxide embedding into the metal which degrades ...

Process & Facilities

Hot Strip Mill (HSM) SSI''s maximum production capacity for hot-rolled steel sheet is 4 million tonnes per year. This is the greatest single-facility capacity in Southeast Asia. The process begins with high-quality steel slab. One piece of slab, weighing 5-32 tonnes and 160-250 mm thick, is heated in a furnace until it reaches a temperature of ...

(PDF) Reduction of Cobble Generation in Hot …

2018-11-27 · The cobble generation at the hot strip mill at HSM, RSP has been reduced from 0.47%. in 2016-17 to 0.25% during April-December, 2017 due to modified side guide. measurement system, thermovision ...

Five facts about Ilyich Steel''s 1700 hot strip mill

2019-9-17 · Following the revamp of the hot strip mill, the quality of coils will meet the most stringent global standards. The 1700 HSM''s Austrian equipment will provide for stable process modes, assuring low size tolerance and …

CSP ® technology

Compact in design, CSP ® produces high-quality hot strip in a single manufacturing line that combines casting, heating, and rolling. Our proven CSP ® caster with its patented funnel-shaped mold casts thin slabs in thicknesses ranging from 50 to 90 mm. Next, the slabs go into the CSP ® furnace for temperature equalization. Straight after that, the CSP ® mill rolls them to final strip …

Hot Strip Mill

G. Engberg, L. Karlsson, in Fundamentals of Metallurgy, 2005 11.5.1 Hot rolling. Mill data from the hot strip mill has been used to calculate the mean flow stress in each pass, assuming the material to be elastic – ideally plastic. The roll force model used was a classical slab method with constant friction assumed in the roll gap. For the roughing mill (reversible 4-high) both roll force ...

Hot Strip Mill Products

2020-5-25 · This data sheet serves as an introduction to hot rolled coil produced at ArcelorMittal South Africa. ArcelorMittal South Africa''s Hot Strip Mill products normally range in thickness from 1,4mm, to 16mm and in width from 800 mm to 1 925 mm. Material may be supplied with mill edge or can be side trimmed.

Hot Strip Mill Transfer Bar Rapidfire(TM) Edge Heat Project

2013-9-20 · During the gauge reduction process, the Rapidfire™ Edge Heater effectively maintains a hot-working temperature, the primary processing ... strength, hardness, and ductility. In a typical hot strip mill, steel slabs are overheated to ensure that edges remain hot enough for final processing. Once a slab has "dropped out" of a reheat furnace ...

The Production Process of Downstream Steel Products

The Hot Strip Mill In essence, the hot strip has the exact same process of the plate mill. What makes them different is that the hot strip mill continuous to reheat and roll the steel slabs all the way until they''re at around 1/16 of an inch thin and roughly 800 meters long.

Method for improving hot strip mill processing

The Hot Rolling Process - California Steel

Basics of Continuous Casting of Steel

2022-7-29 · Hot Strip Mill: Process : Continuous casting, also known as strand casting, is the process where a metal is heated until it liquefies. The molten metal is then allowed to solidify until it becomes a semi-finished slab that is later …

Designing of Hot Strip Rolling Mill Control System

2016-8-9 · Aimed at the complex demand of hot strip rolling mill in practicing, the configuration of the coiler and the technological process is analyzed. The arithmetic of coiling tension and the control process is introduced. The frame …

Main features of a modern hot strip mill

2022-5-25 · The primary purpose of a hot strip mill is to reheat thick steel slabs into thin sheets with varying thickness. The thick steel slab passes through several rolling mill stands that are driven by powerful motors. The rolled sheets then pass through coilers, thereafter these coils move on to the next process in the plant.

Products › Flat › Hot Strip Mills Modern rolling mills that …

Modern rolling mills that ensure product quality and mill productivity. The Hot Strip Mill represents the most productive solution for flat rolled products. It provides the highest level of productivity together with a large product mix and outstanding quality. Yearly productivity of Hot Strip Mills can vary from 2 to 6 Mtpy, depending on the ...

Method for improving hot strip mill processing

Referring generally to FIGS. 1 and 2 of the drawings, in the finishing stage process of hot strip mills, a series of aligned delay tables 10 receive an elongated steel strip 12 as it exits from the last roughing mill 13. Following the entry of the strip 12 onto the delay table 10, the head end of the strip is aligned and cut by a crop shear and ...

How To Maintain Dimensional Quality in the Hot Strip Mill

2015-11-12 · Process Variables in the Hot Strip Mill. There are many derivatives of the modern hot strip mill, from multi-stand to reversing Steckel mills to direct casting, but the end goal is always to produce a coil with uniform mechanical and dimensional properties from head to tail and edge to edge. Advanced process control algorithms use hundreds of ...

Contribution rate plot for nonlinear quality-related fault …

2013-4-1 · Hot strip mill process (HSMP) is an extremely complex process in steel manufacturing industry. Due to the increasing quality requirements of the steel products over the worldwide market, e.g. thickness, width or flatness, diagnosis of the hot strip mill process could bring significant economic and social benefits and thus becomes one of the major interesting topics …

TEMPERATURE PREDICTION IN HOT STRIP MILL BARS …

techniques used. The most critical process in the HSM occurs in the Finishing Mill. Actually, there are several mathematical model-based systems for setting up the Finishing Mill. Figure 1 Schematic view of a typical hot strip mill The Finishing Mill Set Up model calculates the finishing mill working references required to obtain

Optimization of hot strip rolling mill process

Temperature Model of Hot Strip Mills in Tandem and Its Self-Learning Strategy. Journal of Northeastern University. 2009, 30(5):369-372. [2] GongChangBao: Temperature Model and Its Application in Hot Strip Rolling.Steel Rolling, 2004,3:34-37. [3] LiuYan, SunYiKang and GuanKeZhi: On Temperature Model for Finishing Stands in Hot Strip

Validation of the Hot Strip Mill Model (Technical Report)

2005-3-30 · The Hot Strip Mill Model (HSMM) is an off-line, PC based software originally developed by the University of British Columbia (UBC) and the National Institute of Standards and Technology (NIST) under the AISI/DOE Advanced Process Control Program. The HSMM was developed to predict the temperatures, deformations, microstructure evolution 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.

Progress in Sizing Press for Hot Strip Mill Line

2022-5-24 · emergence of the sizing press, Hot Strip Mill (HSM) lines consisted of multiple vertical and horizontal rolling mill stands. This vertical and horizontal combination had many technical problems. Many model tests and numerical analysis were required, as were newly designed equipment based on the results obtained from the tests and analyses.

Automation and Thickness Control in Hot Strip Mill

2020-10-16 · Fig 1 Structure of a typical automation system for hot strip mill process. Level 0 – It is the lowest level of control and includes, for example, the control loops for hydraulic capsules used to position the rolls in the rolling mills and for the main electric motors powering the mill.. Level 1 – It is primarily concerned with in-piece control. At this level, the quality parameters …

TATA steel E-Learning Course Certification

The course is designed to combine both practical and theoretical aspects of the equipment in hot strip mills and their process across the steel industry. Course Objective. This module will help you understand the hot strip mill layout and different types of equipment used in the process for producing hot strips of the required shape and size ...

Strippers and Wipers for Hot Strip Mills

Strippers and Wipers for Hot Strip Mills. Work Roll cooling is a vital aspect of steel coil production within the Hot Strip Mill. Large volumes of water and coolant are sprayed onto the rolls so that they do not overheat, crack, and deform due to the extreme temperatures involved in the process. While water is an absolute necessity in order to ...

Dynamic Model of the Hot Strip Rolling Mill Vibration …

2019-2-25 · The vibration demolding of the crystallizer leads to slab thickness deviation in continuous casting processes. Therefore, in this paper, the dynamic model of the hot strip rolling mill vibration resulting from entry thickness deviation is proposed and its dynamic characteristics are studied. First, the dynamic model of vertical vibration in the hot strip rolling mill is …

MODERNIZATION OF HOT STRIP MILLS

2018-3-27 · HOT STRIP MILLS 40 TONS OF HIGH-TECH Largest case-hardened wheel From September 2011 until August 2012, a workpiece of a size that even the SMS Siemag workshop had never seen before passed the manufacturing process in Hilchenbach. The large wheel for stand R3 in the hot strip mill of ArcelorMittal, Dunkirk, with a diameter of nearly 4,500 milli-

Hot Rolled Mild Steel | Hot Rolled Sheet Metal | Hot Rolled …

It is the widest Hot Strip Mill in India, capable of rolling upto 2150 mm. JSW Steel''s Dolvi unit in Maharastra has commissioned capacity of 3.6 MTPA . The Dolvi unit HSM uses a combination of the advanced Conarc Process and Thin Slab Casting technology, which facilitates the production of HR coils which are superior in quality due to their ...

Superlarge coil handling system for hot strip mill

1999-5-10 · The process of the invention comprises continuously casting thin slab 41 at continuous caster 39 followed by reheating the slab in relatively short reheat tunnel furnace 42 to about or slightly above a temperature for subsequent hot-rolling at hot-rolling mill 40.