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slab caster level measurement (16)
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Oscillatory Flow in a Physical Model of a Thin Slab Casting Mould With a Bifurcated Submerged Entry Nozzle
http://link.aip.org/
Laser Doppler anemometry (LDA) measurements are presented of the oscillatory flow in a 33% scale water model of thin slab casting mould when the flow enters as two lateral jets through a bifurcated nozzle. The submerged entry nozzle (SEN) and the mould were geometrically scaled to be representative of industrial thin slab casters. Mean and RMS LDA velocity measurements were taken at three selected points in the region surrounding the SEN, at 500 points in the central plane parallel to the broad face of the mould, and at points in selected transverse sections, for casting rates up to 1.53 m/min. Flow visualization was also taken at two selected planes in the mould. The LDA results showed each jet to form an upper and lower recirculation zone with the lower zones adjacent to one another bounded by the jets and the mould walls and the upper zones bounded by the jet, the SEN, the mould walls and the free surface. Both jets were found to have most oscillatory energy at frequencies below 5 Hz with high energy low frequency modes occurring at frequencies below 0.2 Hz. However, no single dominant frequency occurred in the spectrum and flow visualization revealed an apparently chaotic flow pattern in the oscillation. Midpoint jet deflection was restricted to 6–8 mm RMS, and no coherence was observed between jet (and free surface) movements on either side of the mould. The time averaged flow pattern was found to be almost symmetric across the wide face of the mould. It is concluded that both shear layer instability in the impinging jets, and deflection of the jets due to cross-flow at the SEN-mould wall, contribute to the flow oscillation.
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Major steel producer
http://orissasteel.tripod.com/
The modern Plate Mill rolls out heavy and medium plates, as well as those for pipe manufacturers. Plates of wide variety, in any required size, and strength, chemical and physical properties, can be produced here. It has capacity to produce high pressure, boiler quality and high tensile steels. Shipbuilding plates, conforming to Lloyds specifications, and pressure vessel boiler plates, conforming to various ASTM, ASME standards, have withstood the challenges of nature and time. Some of the unique features of the mill are on-line finishing facilities and off-line normalising facilities.
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QUALTEC GmbH
http://qualtec.ch/
Radiametrics through its partnership with Qualtec a Swiss based steel automation company presents the new STELA gauge. This product measures the level of molten steel for continuous casting applications. We developed a completely new amplifier that eliminates many of the negatives associated with existing eddy current systems. The STELA system is the product of years of development and is a low maintenance steel hardened gauge.
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Cisdi engineering co, Ltd
http://www.cisdi.com.cn/
CISDI has been granted over 200 prizes for science & technology achievements of different level, including 3 Awards of Technical Invention and 3 Awards of First Prize of Science & Technology Progress.
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DASTURCO
http://www.dasturco.co.in/
Dasturco offers integrated design and engineering consultancy services from concept to commissioning for a wide range of projects in the metallurgical and allied industries
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Laser technology for your automation solutions
http://www.lase.de/
Laser technology for your automation solutions
The company LASE is your expert for the choice of a suitable laser measuring technique - appropriate for your project definition.
Except our broad product range of 1D - over 2D up to 3D laser measurement system, you can also get complete "ready to use" measurement system solution from our hand.
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Recent Publications of Metal Pass
http://www.metalpass.com/
Six publications from Metal Pass LLC in February - March, 2008, together several papers published in late 2008 and early 2009. Topics on steel mill Level 2 model development and improvement, industry automation, mill process models, etc.
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Laser measurememt
http://www.moduloc-intl.com/
Moduloc for laser & vision-based detection and measurement systems. moduloc control systems. Based in the United Kingdom we have a 30 year history of supplying Non-Contact Optical Sensors and Measuring Systems to the Metals Industry in providing the latest technology for precise product detection and measurement in the Mill as well as Lasers for crane control and material handling positioning systems.
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Aerial-Equipment
http://www.rentalworld.com/
Our Snorkel S1930 self-propelled scissor lifts are ideal for slab construction, building renovation and all types of maintenance work, these battery powered units feature built-in pothole protection and slope level sensor interlocks as standard safety equipment. Center pivot steering permits an extremely tight turning radius. Other standard features, offered only as options on competitive models, set them apart as the industry leaders.
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Revue de Métallurgie
http://www.revue-metallurgie.org/
The /Revue de Métallurgie/ created a century ago by Henry Le Chatelier is an international journal, indexed by ISI in the current contents.
During the last few years, it was dedicated to the steel industry and to branches of industry directly connected to it, and more particularly to the development, processing, properties and uses of steels.
The editorial committee would like to widen the aims and scopes, especially in the field of ferrous metallurgy (including more significantly the field of cast iron) and of non-ferrous metallurgy (nickel alloys, refractory steels, titanium, zirconium…). Within this framework, we would like to attach importance to technological innovation as a support of the metallurgy industry at a time when it has to tackle great challenges: energy, raw materials, environment…
Due to its origins, the purpose of the review has always been to strengthen the dialogue between science and industry. This is why articles that focus on industrial practice, basic knowledge of metallurgy or review articles are especially welcome.
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SERT Metal control Expert in Metal Casting Control
http://www.sert-metal.com/
Since 1965, SERT has developed systems and products for
the improvement of metal flow control, on existing or new casting or pouring machines.
SERT's skills cover every main type of process related to pouring or casting of molten metal
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Continuous Casting/Slab
http://www.steellinks.com/
Engineering, design, project management, and construction services for facilities used in beneficiation and agglomeration of ferrous and nonferrous ores; direct reduction iron ore; blast furnace; BOF, coke ovens and electricfurnace steelmaking, ladle metallurgy including RH and RHOB recirculating vacuum degassing; continuous casting, hot and cold rolling and process lines; process control systems; plant utilities, air and water pollution controlsystems.
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STEEL & METALLURGY
http://www.steelmetallurgy.com/
An monthly magazine on iron, steel & allied industries including ferrous & non-ferrous metals, covering areas like sponge-iron, pig-iron, refractory, down to steelmaking, rlling, continuous casting & galvanising lines and also offering statistics data on steel.
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The Mould Level
http://www.technoap.ru/
After providing the supply voltage, the system automatically enters the conditions of TEST-ING. Under of these conditions, contents of the monitor window at the caster pulpit are varied ac-cording to which devices are subjected to testing at present instant. Favorable performing of the most tests is not displayed on the monitor and remains unnoticed for the system user. In process of testing the equipment the system generates informational messages.
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Steel-Slab Casting Mold and Defect Formation
http://www.tms.org/
Phenomena associated with the turbulent flow of molten steel in a continuous-casting mold are responsible for many defects in the final product, including surface slivers, frozen meniscus hooks, captured inclusions that enter the mold from upstream, and mold slag entrapment. Animations of some of these transient flow phenomena are presented from large-eddy simulations of a typical slab caster with a three-port nozzle. The illustrated phenomena include the transport of superheat with the turbulent transient flow of molten steel, surface-level fluctuations, and the transport and entrapment of inclusion particles.
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Will Webb Associates
http://www.willwebbassociates.com/
Vision System: A high speed CCD camera is used to capture the images of the head and tail end of the transfer bar. Pattern recognition software intelligently analyzes the image and precisely determines the complete profile of the bar. The optimum cut line is determined by the computer based upon the shape of the bar and the matrix of strategies.
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