Apr 06, 2017· In steel plants reheating furnaces are used in hot rolling mills to heat the steel stock (Billets, blooms or slabs) to temperatures of around 1200 deg C which is suitable for plastic deformation of steel and hence for rolling in the mill
Hot Rolling Mills In metalworking, rolling is a metal forming process in which metal stock is preheated up to 1300°C (2400°F) and passed through rollers to reduce thickness Hot rolling processes include pre-heating furnaces, scale breakers, slab scale, rough stand, finishing stand and cooling lin
Vacuum Induction Melting Furnace COOLDO Vacuum induction melting Furnace is one of the most commonly used heat processes under the vacuum or inert gas atmosphere protetion for metal refining treatment and adjustment of chemical composition and temperature To ,
The temperature controller is an important part of the control system design of the crude oil heating furnace the traditional PID control is usually used in temperature control, but it can not effectively overcome the impact by the interference, load change and the parameters change of system ,
Apr 13, 2013· batch furnace, hat transfer, pusher furnace, Reheating furnace, roler hearth furnace, walking beam furnace, walkinghearth furnace, Reheating furnaces in steel plants In steel plants reheating furnaces are used in hot rolling mills to heat the steel stock (Billets, blooms or slabs) to temperatures of around 1200 deg C which is suitable for .
The cooling of work rolls is an important process in the hot rolling technology and cannot be taken as a marginal issue The Heat Transfer and Fluid Flow Laboratory designs cooling of rolls to reach their long working life while rolled product is still well heat treated
Waste Heat Recovery in Steel Bars Re-Rolling Mill 53 Measurement of Furnace Znes Tmperature The furnace is comprised of three zones namely preheating, heating and soaking, the temperature
Accurate temperature measurement of slabs, billets, or blooms on a hot rolling mill ensures product uniformity Steel Processing and Manufacturing Raytek provides temperature measurement solutions for every step in the steel making process, from coke ovens and blast furnaces to annealing and coating mills, and also and reheat faciliti
The optimization of hot rolling processes requires the use of accurate and reliable sensors for detection and measurement DELTA has developed a range of non-contact sensors able to survive the extreme conditions of the steel mills environment: high ambiant temperature, high infrared radiation level, dust and steam Length measurement
Infrared sensors measure strip and sheet temperature so that rolling mill stands can be efficiently set to match the steel’s temperature Sensors can be used to detect the presence of hot metal and accurately time the roll stand operation Pyrometers can be used to measure the roll temperature as water cools the roll during the quenching process
PropertyMon® – Inline Mechanical Properties Measurement System With Primetals Technologies inline and real time measuring system for continuous annealing lines, steel producers can not only determine mechanical properties (tensile and yield strength) but also steel magnetic behaviour in ,
4 Furnaces Bureau of Energy Efficiency 92 • A method of introducing and removing the steel from the chamber • These facilities depend on the size and type of furnace, the shape and size of the steel being processed, and the general layout of the rolling mill • Common systems include roller tables, conveyors, charging machines and furnace
The scanning optical system, in association with state-of-the-art infrared photocell technology, is the optimal solution for accurate, fast and reliable detection of product, whatever its size and its temperature The Scanning Hot Metal Detector Rota-Sonde DC works under adverse conditions such as ,
This mill process involves rolling and reducing steel at a high temperature to achieve the required thickness Our product range provides essential temperature measurements at key process points, in hostile conditions
Thickness measurement is one of the most important measurement tasks in hot rolling mills With the O-frame and C-frame thicknessCONTROL MTS 820x and MTS 920x series, Micro-Epsilon offers high precision measurement systems Based on laser triangulati
The furnace temperature data in Figure 4 show the three temperature control zon They also illustrate heating dynamics of steel billets and the influence of the change in specific heat as a function of temperature, that is, at approximately 735°C, after approximately 80 min of reheating, the temperature of steel billets indicates a decrease in heating rate
Walking beam furnaces are used for heating slabs, billets, or rods prior to the rolling process The goods which are to be heated are moved inside a walking beam furnace The temperature in a walking beam furnace can normally reach up to 1,200°C
Level 2 automation for reheating furnaces is an online furnace temperature control system whose main task is to provide optimally heated steel semis to the rolling mill for various production requirements
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
Rolling Mill Applications Yokogawa helps leading-edge Iron and Steel plants through automation solutions that enable plant-wide integration and lifecycle optimization Here is a quick list of Rolling Mill units and applications for which Yokogawa has a global network of experts at your service, providing comprehensive automation solutions
The schematic structure of a typical aluminum hot reversing rolling mill can be seen in Figure 1 The aluminum slabs, which have to be rolled, are transported from a re-heat furnace via a roller table, then heated to around 420-450 0C The initial slab thickness is around 500 mm The target thickness is typically 5 to 10
The Measurement The first sensor, a radiation thermometer operating at a wavelength of 39μm, measures the apparent temperature of the furnace load Get Price; Long Product Casting, Rolling and Processing , Rolling Mills | Industrial Efficiency Technology &
The reheat furnace control system must adjust to the temperature, mass and distribution of the incoming steel Over-heating the steel wastes energy, limits the rolling speed, and adversely affects the properties of the steel Under-heating the steel also affects steel properties and risks damage to the rolls
Technotherma Furnaces Pvt Ltd is a professional engineering organization, specialized in the design and construction of Rolling Mill Furnac Formed in 1994, Technotherma is run by a technically qualified team of engineers with in-depth knowledge and experience in the field of construction of heat treatment furnac
A Review On: Efficient Energy Optimization In Reheating Furnaces 19 product, yield, energy consumption, pollution and the economics of the product In modern walking beam reheating furnaces, semi-finished products such as slabs/blooms/billets are uniformly heated to a desired temperature and have minimized skid marks The
Features and benefits The Velas DL4000 directly replaces traditional, high-maintenance, problematic contact wheel and rollers type devices, with accurate “state-of-the-art” laser Doppler technology Extremely easy to install, integrate and use Accurate speed and length measurement reduces scrap, increases uptime and improves material yield
ASTM-B947 Standard Practice for Hot Rolling Mill Solution Heat Treatment for Aluminum Alloy Plate , The accuracy of temperature measuring system(s) shall be tested under operating conditions at least once during each week that the facility is used , The hot rolling mill solution heat treatment procedures are presented in details The .
Positioning of Ladle; Temperature measurement at Ladle Pre-Heater; Temperature measurement at Spray Chamber ; Hot Rolling Mill Slab or Billet Alignment on entry to Reheat Furnace; Slab or Billet Width measurement on exit from Reheat Furnace; Slab or Billet Video monitoring inside the reheat furnace; Slab or Billet Detection inside the reheat .
Modern rolling mills, and specially cold tandem mills with high productivity, are equipped with a number of transducers participating in automatic control systems: rolling force (on exception rolling torques), strip tensions between stands, average gauge and thickness profile at exit, strip tension profile (shape measuring systems) between .
Contact-free measurement of the temperature in steel and hot rolling mills and in metal working; Cableway; Station platform system; Finishing and coiler area; Hot strip mill, sheet mills and blooming train; Transport, logistics and storage systems in the steel mill; Rolling mill for long products; Production of fine sections and steel wire
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