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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.
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I is in use for coiling the FN = normal force strip extracted from finishing mill and it consists of FRolI = roll force side guides which has function pushing to center FZ = tension force direction, pinch roll, mandrel which is used to coil h = strip thickness the strip, and wrapper roll which induce initial H.Y.P, (} = hot yield point (N/mm2 ...
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Features. Mill types: 4-high work roll shift mill; 4-high Pair Cross mill (PC mill) with on-line roll profiler and dynamic PC option for dynamic Automatic Profile and Flatness Control (APFC). High-speed threading: 2m/sec or higher to maintain top and tail temperatures. Short gap time: Time between passes less than 3 seconds except first two passes.
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parameter is rectangular shape. Side guides in front of the coiler assure a centered winding of the first wraps. A proper coil build up is difficult to achieve if Figure 1: Typical Hot Strip Mill layout with strip steering systems [1] X-Roll® Guide FM entry Entry side guide concept X-Roll® Guide Coiler Coiling quality system X-Roll®
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Important aspects of Rolling of Hot Rolled Coil in Hot Strip Mill. Continuous cast slabs having thicknesses higher than 200 mm are used to make hot rolled strip. The transformation of the slabs into sheets / plates with a thickness of only some millimeters is the most important phase during flat steel rolling.
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Main Features of a modern Hot Strip Mill. satyendra; December 22, 2013; 0 Comments ; AGC, coiler, HGC. AWC. Coil box, Reheating furnace, Main Features of a modern Hot Strip Mill. The objective of a hot strip mill (HSM) is to reheat and roll thick slabs into thin strip with a wide range of thickness.
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and auxiliary components such as side guides, and the program control logic of roughing and finishing mills have significant influence on the quality of the semi-product or end product of hot rolling process. In fact, the quality of hot strip mill products is directly reflected by the final profile and geometry
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JH Day Mill 14" x 30" Three 3 Roll Mill. 14″ x 30″ Three Roll Mill 3 Roll Mill JH Day 14″ diameter x 30″ long Three Roll Mill, 2 speed motor, 12.5/25 hp,manually adjustable 1st and 3rd rolls, 220 voltage, brass side guides, discharge apron, STOCK NUMBER...
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Entry coil car 1 set: 2: Hydraulic decoiler 1 set: 3: Hydraulic press and pinch device 1 set: 4: Hydraulic cutter 1 set: 5: Looper 1 1 set: 6: Side guide device 1 set: 7: Slitter 1 set: 8: Scrap winder 1 set: 9: Looper 2 1 set: 10: Tension stand 1 set: 11: Recoiler 1 set: 12: Exit coil car 1 set: 13: Hydraulic system 1 set: 14: Electrical ...
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(3) Adoption of high-response hydraulic screw-down sys-tem and high-response mill drive system to prevent tension fluctuation between stands and improve thick-ness correction capability. (4) Provision of side guides to prevent snaking of the strip--hydraulic at the entry side of hot finisher, F0 and F1 and screw + pneumatic at the entry of F2 ...
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and coiler, poor surface and edge quality on the hot strip, inadequate water-cooling, and improper setup relative to the side guides. The sparking often seen at the entrance of the coiler is actually small particles of hot strip and/or pieces of the side guides flying into the pinch. Figure 2. Forged steel bottom pinch roll exhibiting a severe
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Work Flow: Coil loading—Uncoiling—Pinching & Leveling—End Shearing–‐Strip joining—Horizontal Spiral Accumulator—Forming,–‐HF Welding–Outside burr removal–Water Cooling–‐Sizing & straightening–‐Measuring roll—Flying saw cutting—Run out conveyor. Raw material. Hot rolled steel, cold rolled steel, galvanized steel ...
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Aimed at the complex demand of hot strip rolling mill in practicing, the configuration of the coiler and the technological process is analyzed. The arithmetic of coiling tension and the control process is introduced. The frame of the tension adjusting system is given. The coiler control system hardware is designed. The system is designed scientifically with steady control and …
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The modern hot strip mill is furnished with a tremendous amount of equipment from the reheat furnaces all the way down to the coil processing equipment.Fortunately for both our ferrous and non-ferrous customers alike Butech Bliss can provide equipment and technical services for nearly every element of the hot strip mill.
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1.Loading coil car 2.Uncoiler 3.Straightener device 4.Pinch roll&leveler & hydraulic shearer 5.Loop pit 6.Side guide 7.Slitter 8.Transition platform & scrap winder 9.Loop pit 10.Tension station 11.Recoiler 12.Unloading coil car Please provide following parameters, and then we can offer a slitting line machine for you: (1) Material of the steel coil
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B. Flat Product Mill a) Plate Mill b) Hot Strip Mill A. Long Product Mill All Long Product Rolling Mills (Automatic) are having following main ... discharged from furnace through the side discharging door and are ... Mill Stand, Crop Shear, Coil Box, Down coiler / Recoiler, Power transmission mechanism including oil cellars, Conveyors, Motors etc.
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On the right hand side, the results of an evaluation of the camber size are illustrated for 1000 strips, each rolled with the side guides in position and with force control mode. The force control mode of the hydraulic side guides on the rougher provides a 2-sigma value of less than 30 mm for the camber.
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2) Hydraulic Entry Coil Car Automatic Coil Slitting Machine. The car can move levelly and vertically, which is convenient for putting the steel coils into the de-coiler. It is driven vertically by φ180mm hydraulic cylinder with 4 guide pillars. The level movement is driven by XWD2.2-63-121 cycloid motor.
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The latter accumulator has on one side compressed nitrogen gas while on the other side a hydraulic pressure is developed by a working piston displaceable in the hydraulic cylinder. ... for the strip-guide members of a subfloor strip coiler for a hot-rolling strip-mill line which provides a more reliable positioning of the controlled member with ...
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hot coil is remaining on the mandrel, one of the most important down coiler components, and leads to undesirable heating of the mandrel. Fast carry-over of strips between two pinch roll units Increased wear of the side guides as the fine strip is cutting into it during coiling. For the above reasons the down coilers used for
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Cut-To-Length Line is designed for shearing various kinds of Steel Coils such as Hot & Cold Rolled Carbon Steel Coil, and Galvanized Steel Coil. etc. COIL SLITTING LINE PLANT We are also manufacturers and exporters Complete plant of Coil Slitting Machines 0.2 mm to 6 mm or more thickness x 1000 mm to 2000 mm with all automatic systems
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Hydraulic system Upcoiler & shear The Mill is Consisting of Mill housing Mill bed plate Mill gear box Mill Pinion stand Entry & exit table ( 55 mtrs each side) Entry & exit hydraulic side guide Lubricating system All DC & AC motors All Gear boxes Roll balancing system Roll (2 Nos) with chocks ( 2 sets) Roll change arrangement etc. This mill is ...
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The side guide device of the coiler in the main rolling line of a hot strip mill is used to prevent the deviation of the strip, align the strip with the rolling line, and lead it into the underground coiler. The side guide plate is driven by hydraulic cylinder, and the guide plates on both sides of the side guide plate are controlled by two ...
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Hydraulic Side Guides Coiler Hot Strip Mill. Prompt : Caesar is a famous mining equipment manufacturer well-known both at home and abroad, major in producing stone crushing equipment, mineral separation equipment, limestone grinding equipment, etc. A method coiler side guide wear plates, mill production line ...
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MSD is a hydraulic cylinder installed to mill housing window and press a roll chock against the opposite side with constant force. MSD eliminates gap between roll chocks and mill housing, keep rolls in proper position and stabilize rolls. Enables stable rolling at demanding rolling condition. Stabilizes threading.
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Coiler furnaces of the type used with reversing rolling mills are provided with a strip guide (49) for guiding the leading edge (44) of the incoming steel grip into engagement with the slot in the winding drum of the coiler furnace. According to the present invention, the strip guide (49) is designed as a dual purpose strip guide (49) provided with a cleaning element (51) (e.g. a …
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per-mits operation from the side only and not from the top. As with the top push, avoid exceeding recommended overtravel. Available in both momentary and maintained styles. Top and side roller plunger — function similar to push rod styles except there is a roller attached to the end of the rod.
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Magadh can supply 20-hi mills for strip width up to 1625 mm, minimum finish strip thickness up to 0.05 mm and mill speeds up to 800 MPM which are quite popular for rolling high tensile ferrous and non-ferrous metal strips especially of wider width to thinner gauges more effectively than other mill designs.
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i is in use for coiling the fn = normal force strip extracted from finishing mill and it consists of froli = roll force side guides which has function pushing to center fz = tension force direction, pinch roll, mandrel which is used to coil h = strip thickness the strip, and wrapper roll which induce initial h.y.p, (} = hot yield point (n/mm2) …
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Raw material platform→ carrying coil car→ hydraulic uncoiler→ feeding guide plate→ pair pinching roller, five rollers leveling→ coil head cutting→ front looping table→ side guiding table→ pinching machine→ disc slitting→ curling machine→ back looping table→ pre-feeding coils→ tension table→ rewinding→ discharging ...
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