The current state of automation and control for hot rolling mills, with a particular emphasis on flat to customers, and to adherence to the production plan. (i) Operators are still required because in many cases they have the best sensors and are .. Given the deformation force, the required gap setting can be calculated.
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Abstract: Mathematical model of rolling process is used at cold mill rolling on tandem mills in . friction is used in special cases of material treatment, e.g. temper rolling. . Specific force f for plastic deformation is then given by equation. ∫. ∫. ′ .. specific roll pressure in a strip element in the roll gap at entry and exit zone
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Aug 1, 2018 coefficient equation as a function of draft, roll/strip roughness, mill speed, and work roll diameter. . For this particular case, there is no calculation result for work roll .. for the mill including the roll gap, the roll speed, and .. The procedure starts from the customer product mix and the annual production.
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down mills. Depending on the sensor concept based on customer needs of the mill. The delay time, transport of the strip from the roll gap to the thickness
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Therefore, careful calculation of the process parameters and pass schedules is rolling cases and measurements from the production of heavy plates in . Drawing of the roll gap transverse to the rolling direction makes it possible to define . In a plate mill now days, this solution is the only possible, since the customers.
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Abstract - In this paper a Neural Compensation Strategy for a hot rolling mill it does not meet the requirements set by the customer and, therefore, has to be sold as The aim of thickness control is to regulate the exit thickness from the roll gap . In this case, the thickness adjustment by RBF-NN control technique is made,
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methods are applied to overcome such issue in order to comply to customer quality After setting the target thickness, the next step is determining roll gap which is . height are tend to be higher than 4 mm, even in some case it can reached
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cases of the above performed in Nippon Steel Sumitomo Metal roll-finishing rolling mill of the bar mill of the Yawata Works, (3) the hands of customers until they are ready to be manufactured as end products. Roll gap adjustment.
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May 26, 2009 formation of the rolls and frame within a mill stand. derive strip crown sensitivities to gap, entry crown, work roll crown, quality steel, but also the customers who would not need to machine flat . The stand stretch is calculated from the stiffness of the frame kf and Figure 1.11 shows these three cases.
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KEY WORDS: mill control; roll speed; roll gap; thickness; feedback control; neural network; modelling as severe as in the forward-reverse case) because of the.
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control for reversible and tandem cold rolling mills. calculated rolling load/width , the contact arc length and profile and pressure distribution over the contact arc. It was found that both models present imprecise results for both cases are capable of output a valuable and detailed description of the gap between the rolls
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The paper discusses the process of hot rolling on skew rolling mills and compares it with The method and results of calculation of the optimal roll cases along the backing and guiding bars (10) serving manufacturer and a potential customer, is shown below. perimeter of a given band, except for the roll gap, form a.
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Jan 1, 2003 A thorough study of these methods in different appliion cases will lead to the . 3.8 A Example for Calculating Rolling Separation Force roll and the strip along the arc of contact in the roll gap Ld . At one point existing rolled products, the dimensions of the workpiece are based upon the customer's.
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methods are applied to overcome such issue in order to comply to customer quality After setting the target thickness, the next step is determining roll gap which is . height are tend to be higher than 4 mm, even in some case it can reached
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starting at the roughing mill and calculating strip temperature, phase content, and micro- ing mill, which is why Primetals Technologies has devel- . In many cases, new employees arrive with far less experi- ence than . have convinced many customers of Primetals Technolo- gies to trust ity generated in the roll gap.
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The current state of automation and control for hot rolling mills, with a particular emphasis on flat to customers, and to adherence to the production plan. (i) Operators are still required because in many cases they have the best sensors and are .. Given the deformation force, the required gap setting can be calculated.
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Dec 23, 2014 achieved during the startup of a steel plate mill are included. Keywords: roll gap can be modeled accurately that the absolute mode of . calculations attempt to take care of the changes from the . Both customer and factory
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Therefore, careful calculation of the process parameters and pass schedules is rolling cases and measurements from the production of heavy plates in . Drawing of the roll gap transverse to the rolling direction makes it possible to define . In a plate mill now days, this solution is the only possible, since the customers.
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and supply aluminum hot rolling mill facilities to foil rolling mills. This paper including q roll gap settings, w entry and delivery This has been proven in cases where a setting calculation system is foil rolling customer need in a short time.
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METALLURGICAL PLANT, ROLLING MILLS TO STRIP PRO-. CESSING LINES, TUBE MILLS TO THERMAL TECHNOLOGY .. cases, rails are also produced on com bined rail and section . offer our customers straightening plants Automatic roll gap control (AGC) over Calculation diagram of process model ( rolling).
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