(AGC) in steel plate production. AGC has been successfully applied to commercial rolling mill system to select required control values. Usually, the conventional AGC systems are based on Proportional Integral Derivative (PID) controller [13] [15], a feedback-loop mechanism adjusting control val-ues to address target values. Such PID controllers ...
Automatic Gauge Control (AGC) The main target of the AGC control is to maintain a good thickness tolerance over the entire range of products in varying process conditions undependent of different materials, alloys, dimensions. A system is offered with an adaptive algorithm, different control strategies are available depending on the mill to ...
A gauge and tension control system for a tandem mill comprises a delivered strip thickness deviation calculating unit for detecting output strip thickness at each of rolling stands, a tension calculating unit for arithmetically determining interstand tensions between two adjacent rolling stands on the basis of armature currents of drive motors and rolling loads at every rolling …
High speed machining (HSM)–also called trochoidal milling, adaptive clearing, volumill, and more–is a milling technique that can increase material removal rates, reduce cycle time, and increase tool life. This video from my CNC Chef series for Cutting Tool Engineering Magazine gives a quick What is High Speed Machining (HSM) intro:
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- 22 Rolls, located in Temper Mill area Backup Roll Chocks: 36 (ie: 2 per roll, enough for 9 top rolls and 9 bottom rolls) Work Roll Chocks: 40 (ie: 2 per roll, enough for 10 top rolls and 10 bottom rolls) Gauges: X-Ray: Exit Stands 1 & 5, Accuray 7000 Source Gauges AGC: - Stand 1: X-Ray Feedback to Screws, Feed-Forward AGC
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-L. --i HIDIC-lOO (core l6kw) Fig. 1 Computer Control System for Sendzimir Mills c) Because of the reversible rolling of 1) A feed forward predictive control function special steels, the mill characteristics to has been incorporated in …
Prinz et al. [8] compared two different AGC setups and developed a feed forward approach for lateral asymmetry of entry thickness. They also developed a new feed forward control approach for …
Configuring the systems of the HGC, AGC, and RAC controller of Mill 5000 is described in [10]. Below is a summary of the AGC system and a description of the DDC functions. ...
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MILL CONTROL. Automatic gauge control (AGC) of strip consists of conventional feed forward AGC (FF-AGC), roll position control AGC (BISRA-AGC) based on a gauge meter formula, and also monitor-AGC. In addition to these, mass flow AGC and an AGC system based on decoupling control are included.
The structure of an existing AGC system has been analyzed and m odified to. introduce a thickness feedback control, with in a hot ro lling mill system. In …
Fig 1 Thickness control in a single stand cold reversing mill. For the single stand cold reversing mill, the external controllers are (i) the tension control by torque (TCT) in which the entry / exit tensions are kept constant through the torque regulated by the TC that, in turn, exploits the motors applied to the coiler / uncoiler reels, (ii) the gauge control, feed-back via gap …
a) Find double integral of f(x, y) = x2 + y2 + 5 for x = 0 to 2 and y = 0 to 2 taking increments in both x and y as 0.5. 10 b) Write a flow chart to write a Newtons forward table. SECTION II 7. a) The variation of refractive index (n) of a polished brass specimen can be modelled as R = a2 + b + c, where is the length of the incident light ray ...
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US7110734B2 US10/235,222 US23522202A US7110734B2 US 7110734 B2 US7110734 B2 US 7110734B2 US 23522202 A US23522202 A US 23522202A US 7110734 B2 US7110734 B2 US 7110734B2 Authority US United States Prior art keywords signal coupling frequency offset receiver Prior art date Legal status (The legal status is an assumption and is not a …
• Forward and reverse control integrated into housing for ease of use. • Powered by a 26V Lithium battery, which retains its charge over long periods of …
Four high single stand reversing cold rolling mills for mill finishing process. Strip width up to 1200 mm. Rolling Mills can be designed as roughing/finishing or only finishing depending on the end use. Skin pass mills are also available. Basic Features: Control systems: Feedback and Feed-forward AGC, Mass flow and AFC (Automatic Flatness Control)
A MATHEMATICAL MODEL TO CONTROL A SIX STAND HOT STRIP FINISHING MILL F. Belgrano, G. Chighizola, F. Delfino, V. Giori and V. Neglia ITALSIDER S.p.A., Genoa, Italy Abstract, The high quality level of the hot rolled coils is deeply connected to the more and more qualified technological development by steel users.
Tabu search has achieved impressive practical successes in applications ranging from scheduling and computer channel balancing to cluster analysis and space planning, and more recently has demonstrated its value in treating classical problems such as the traveling salesman and graph coloring problems.
US3574279A US3579A US3574279DA US3574279A US 3574279 A US3574279 A US 3574279A US 3579 A US3579 A US 3579A US 3574279D A US3574279D A US 3574279DA US 3574279 A US3574279 A US 3574279A Authority US United States Prior art keywords screwdown gauge stand roll force workpiece Prior art date Legal status (The legal …
1/K is the velocity feed forward term (2 * ζ * s)/(K * ω) is the acceleration feed forward term . and . 1/(Kω 2) is the jerk feed forward term . Notice that there is an extra power of (s) and a corresponding feed forward term. This is the jerk feed forward gain that is multiplied by the current target jerk generated by the target generator.
High Feed End Mills - Steels up to 45 Rc - Variable Pitch - Reduced Neck The specifically engineered end profile of this fully stocked offering of High Feed End Mills reduces cutting forces, while its reduced neck geometry provides maximum strength in …
Feed-forward AGC for Tandem Cold Mill Flow-Stress Feed-Forward AGC Non-Interactive AGC ... The current may be ac or dc, and the polarity of the electrode may be positive (reverse polarity) or negative (straight polarity). The choice depends on the type of electrode, type of metals to be welded, and depth of the heated zone. ... Reversing 4-high ...
MetalsMaster's AGC and HGC utilize the measurement from its sensors to offer full control of the sheet thickness utilising a combination of speed, tension, load or gap whilst optimising mill speed. AFC not only controls shape via sprays, roll bending and roll tilt but also optimizes the mill using all the parameters from both AGC/HGC and AFC.
The former AGC includes various types such as the so-called BISRA AGC, Feedback AGC, Massflow AGC and Forward AGC, each of which suffers from the following problems. ... in which the method of automatically controlling the strip thickness according to the present invention is applied to a reversible rolling mill. ... is adapted to feed for the ...
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A Cold Mill rolls coils of pickled steel from the pickle line at ambient temperature, using coolant oil. The cold mill produces steel and stainless steel and is also used for aluminum, aluminum foil, and copper. There are several types of mills such as 2-High, 4-High, 6-High, 12-High, 20-High, and Sendzimir Mills that have a variety of types of flatness control operations.
شماره 1688، جادهجاده شرقی گائوک، منطقه جدید پودونگ، شانگهای، چین.
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