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The production of hot rolled strip is achieved in-line: annealing, cooling, mechanical descaling and pickling are combined in integrated processing lines. Wheelabrator shot blast systems are available for narrow, medium and wide strip and are well proven in this field of application.
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/ High pressure descaling / Lifting roller table / Chain seesaw; The high pressure descaler has been designed to ensure that future broader and higher slab can be descaled. By the precise setting of the upper scale bar the quality of descaling was again improved.
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The present invention provides a descaling system for hot strip or plate mills. The descaling system includes upper and lower spray headers which are offset from each other along the pass line. Each spray header is adapted to direct a high-pressure water spray on the metal product to descale the upper or lower surface thereof. The upper and lower spray headers are offset at a distance greater ...
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Typically, the descaling system in the Hot Strip Mill is very effective at removing primary (from the furnace) and secondary (regrown during roughing rolling) sc ale. From all the above we ' ve described, we can come to the conclusion that Descaling is a very important part of the whole hot rolling process. And with the rapid development of ...
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Running the descaler pump at constant speed wastes energy and water, and heavy maintenance is required on the motor, bypass valves, and the pump. Control system tests in a steel mill using a variable speed pump showed annual electrical savings of 1,320 MWh/year. With an electricity cost of $0.10 per kWh, the savings are $132,000 per year.
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Rolling mill bearings – hot mill, cold mill, single and tandem mill, temper mill, cluster mill, rod and bar mill, structural mill High Speed Roller Guides Table rolls and gearboxes Levelling machines Roll grinders ID/OD fans High Performance Descaling Systems Powered by .
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The intensely hot Billet is placed on a roller table which carries it into the roughing mill. Descaling. ... Slitting systems. ... type and Garret type coilers are used for obtaining a compact coil of Hot rolled bars rolled upto size of 12 mm .The hot rolled condition of the compact coil makes it suitable for direct cold working with high ...
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Industrial Descaling Systems. Goodway industrial descalers remove limescale, calcium and mineral deposits, rust and more from HVAC and process manufacturing equipment. Use on plate and frame heat exchangers, heat exchangers tubes, evaporative coolers, pumps, boiler tubes, chiller tubes and virtually any hydronic system. ...
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In a descaling method of pickling hot-rolled steel strips, this invention provides a descaling method for hot-rolled steel strips, which comprises the steps of: keeping the dilute hydrochloric acid solution in a plurality of pickling tanks at more than 60gree.
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OVERVIEW. You'll find spray technology solutions for every area of your mill in our extensive product line. Our CasterJet ®, DescaleJet ® Pro, VeeJet ® and FullJet ® nozzles are industry standards. But that's just the beginning – we have nozzles and systems for precision oil application, selective roll cooling and heating, dust suppression, descaling and more.
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new technology and process in Hot rolled wire descaling. The process will be demonstrated with MATLAB analysis to evaluate the theory and practice. The object of the project is to obtain a process modi cation for a cleaner, quicker and better environmental control during the process.
Sep 02, 1997 · The present invention provides a descaling system for hot strip or plate mills. The descaling system includes upper and lower spray headers which are offset from each other along the pass line. Each spray header is adapted to direct a high-pressure water spray on the metal product to descale the upper or lower surface thereof.
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What exactly is Mill Scale and what is done about it. Home FAQs Suggested Books Help Wanteds Advertise ... Steel mills descale sheet and plate by passage through scalebreaker rolls, which flexes the metal enough to fracture the scale. ... In response to the question on whether or not mill scale on hot rolled steel is detrimental, I would submit ...
OBTENER PRECIO >>The effects of hot rolling on the surface roughness and oxide layers such as reduction, roll speed, and entry temperature, were investigated to identify any significant parameters. Hot rolling experiments were carried out on a HILLE-100 experimental rolling mill. Five lubricating modes were used in the rolling tests to examine the deformation ...
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 configuration that is selected.
[PDF]OBTENER PRECIO >>In part because further descaling is not particularly practical once finish rolling begins, the #2 Scale Breaker is the last opportunity to remove oxidation before the finished hot-rolled strip is coiled. Typically, the descaling system in the Hot Strip Mill is very effective at removing primary (from the furnace) and secondary (regrown
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As a result, efficient cooling of the rolls as well as the surrounding roll area is essential for the forming process in order to ensure stable roll temperatures and effective heat conversion or removal. The aim is thus to provide a uniform homogeneous cooling across the roll .
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Descaling is a key process of hot rolling, especially when a good surface quality of the hot rolled products is demanded. Many studies have been made on the descaling technique of the hot strip mill (HSM) process (1-3). The key descaling parameters include the facility, the descaling performance and the descaling conditions (Figure 1).
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Running the descaler pump at constant speed wastes energy and water, and heavy maintenance is required on the motor, bypass valves, and the pump. Control system tests in a steel mill using a variable speed pump showed annual electrical savings of 1,320 MWh/year. With an electricity cost of $0.10 per kWh, the savings are $132,000 per year.
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Mill Saves US$80,000 and Improves Operations with New Descaling Nozzles Problem: A fully integrated Midwestern steel mill manufactures hot-rolled, cold-rolled and coated-sheet products. Like all steel producers, the mill needs to remove the scale formed on the .
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Primary scales due to poor descaling - Hot rolled products - Rolling defects RIS mark - Rolling defects Red scale - Hot rolled flat steel products - Rolling defects Reference chart for the evaluation of macroetch specimens - Cold rolling defects Ridge-buckle defect - Rolling defects Ridges - Cold rolled uncoated sheet - Rolling defects
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Sep 02, 1997 · The present invention provides a descaling system for hot strip or plate mills. The descaling system includes upper and lower spray headers which are offset from each other along the pass line. Each spray header is adapted to direct a high-pressure water spray on the metal product to descale the upper or lower surface thereof.
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quality of hot rolled products. The element which conditions this result is the mill scale which forms during the heating phase in the furnace. The consistency and anchorage of the mill scale depends in different on variables such as the type of steel, the type of furnace, the product dimensions, etc.
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Exposure of the iron to the oxygen in the air results in oxide scales forming on the surface. This will affect the appearance and properties of the steel. In the production of high-quality hot rolled products it is therefore imperative to remove these impurities from the metal surface. Descalers ensure a high surface quality in hot rolling mills.
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for the entire rolling mill. S MIE AG Hot Flat Rolling Mills 6 STRONG SERVICE Together with its customers, SMS Siemag develops solutions for steel grades which are difficult to descale. In the process, SMS Siemag is able to test various systems, arrangements and settings in their own laboratory using original samples. Furthermore,
OBTENER PRECIO >>Mill Saves US$80,000 and Improves Operations with New Descaling Nozzles Problem: A fully integrated Midwestern steel mill manufactures hot-rolled, cold-rolled and coated-sheet products. Like all steel producers, the mill needs to remove the scale formed on the .
OBTENER PRECIO >>Industrial Descaling Systems. Goodway industrial descalers remove limescale, calcium and mineral deposits, rust and more from HVAC and process manufacturing equipment. Use on plate and frame heat exchangers, heat exchangers tubes, evaporative coolers, pumps, boiler tubes, chiller tubes and virtually any hydronic system. ...
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new technology and process in Hot rolled wire descaling. The process will be demonstrated with MATLAB analysis to evaluate the theory and practice. The object of the project is to obtain a process modi cation for a cleaner, quicker and better environmental control during the process.
Regarding hot rolling of steel, the quality of the rolled metal surfaces depends to a large extent on effective descaling. In order to avoid surface damage, iron oxide scale layers are therefore removed from the hot steel surface by high-pressure water spraying prior to the actual hot rolling process.
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/ High pressure descaling / Lifting roller table / Chain seesaw; The high pressure descaler has been designed to ensure that future broader and higher slab can be descaled. By the precise setting of the upper scale bar the quality of descaling was again improved.
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