The roughing mill stands are used to reduce the thickness of the steel while at the same time extending the overall length. Rolling mill stand is an important part of a work stand, roll bearing chock and roller adjustment device is installed on the frame. Mill stand bears rolling force, must have sufficient strength and rigidity.
Jul 05, 2018 Roughing rolling mill is a machine for rolling steel. Rough rolling is in the middle of heating and intermediate rolling mill, and its function is to process the heated slab by a roughing rolling mill into an intermediate blank that satisfies the finishing requirements (specification, temperature, surface quality, plate type).
Roughing mill rolling of reheated slab The roughing mill usually consists of one or two roughing stands in which the slab is hot rolled back and forth 5 or 7 times repeatedly to reach the minimum thickness requirement. The roughing mill also contains edger rolls that are used to roll the edge of slab and center it.
Roughing. The roughing mill is made up of Multiple independent rolling mill stands, Billets heated in the furnace until they glow bright orange-yellow are rolled through one stand at a time to produce transfer bars suitable for finish rolling. High-pressure water-jet nozzles clean the oxidized iron, or scale, from the surface along the way.
mill type location stand. roll max. initial. section. dia neck barrel bar merchant mill . roughing ms 730 630-750 305 950 200x200 ms 728 590-700 280 850 170x170 ms 626 565-650 260 700 150x150 ms 523 430-560 230 700 130x130 intermediate finishing. ms 420 360-430 200 600-700 90 cs 420 360-430 200 600-700 90 ms 418 290-405
Oct 06, 2020 The cluster mill stand has two work rolls and four or more backup rolls. The number of backup or supporting-rolls depends upon the amount of support needed for the work (small diameter) rolls. Cluster mill is normally used in cold-rolling operation. The cluster mill stand can have six rolls, 12 rolls, or 20 rolls.
The roughing mill is made up of six independent rolling mill stands, the last four of which incorporate small vertical rolling mills called edgers. Slabs heated in the furnace until they glow bright orange-yellow are rolled
Jun 19, 2017 In the modern long product mills, it is common to use a series of rolling stands in tandem to obtain high production rates. The stands are grouped into roughing, intermediate and finishing stages. The roughing mill is generally arranged with horizontal and vertical stands.
Rolling Mill Stand Manufacturers. weikeduo is one of the leading rolling mill stand manufacturers in China, our machines and equipment can be used in large rolling mills, we have the accurate size and certain load capacity of the rolling mill stand, and we provide multiple sizes to meet the different needs of customers, we have rich production experience, and also
These roughing mill stands are made from all types of sturdy materials such as stainless steel, white acrylic and hardware, metal wire, wood, cardboard, and many more. The roughing mill stands come with powder-coated surface treatments and can be
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The workhorse roughing mill has 135 wide rolls for rolling broadside (as the first roughing mill is commonly called) to make a slab wider. A 5,000 hp motor drives 42-diameter work-rolls through 281 gears to reduce the slabs thickness by as much as 2-. The last four roughing mills each incorporate edgers for width control ...
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Available Parts. for a mill roughing section that can use billets up to 160mm x 160mm size. Brand DANIELI Red Ring 3 Horizontal 3 Vertical Cylinder Stands for first-phase continuous rolling of billets from oven, with
Apr 13, 2021 The backup roll of four high roughing mill stands is made of cast steel or forged steel. ... re-engineering of rolling mill process, rolling mill stands, cooling beds, rolling mill supervision, TMT quenching system, and rolling mill roll pass design. Free mail to Stellahanrm.com for your rolling mill plant Solution Whatsapp/Wechat ...
The Benefits of Preet Rebar Rolling Mill Bar Rolling Mill Capacity 300,000 1,000,000 T/Year with multi-strand rolling technology (Slitting Rolling Mill Technology) Production up-to 1,000,000 t/year High hourly Production, Reliable and stable Rolling Operation, Reduce stand changing time (Housing-less Stands and Roll Pass Design).
Roughing mill rolling mill stands are made from rolled steel slabs or cast steel material of thickness from 140 to 240 MM. These stands are of fixed metal roll type. Our complete mill stand includes the following accessories as and where required Housing/cap of steel slab of 140/240 mm thick complete with steel chocks suitable to fibre bearings.
Feb 25, 2016 Rolling The important parameters for rolling in the roughing, intermediate, and finishing group of stands in the rolling mill are temperature, percentage of reduction in area, inter-pass time ...
China 3 Hi Roughing Stand Rolls Manufacturers, Find details about China Rolling Mill Alternative, Re Roling Mills Roll Manufacturer from 3 Hi Roughing Stand Rolls Manufacturers - Xian Weikeduo Electrical Mechanical Equipment Co., Ltd.
Mill chatter in tandem cold rolling mill is a major rejection to the quality and production of the strips. In most mill vibration models, either the roll mass is usually limited to vibrate in vertical direction and vertical-horizontal directions, or the multiple rolls system is simplified to a single mass system. However, the torsional chatter is also a typical type of mill chatter, and the ...
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The increasing requirements for roughing mills in terms of cost and performance ratio include higher output, higher product quality and higher safety. This stimulated roll manufacturers to develop new roll steel grades for roughing mill stands in the early 1990s. Namely semi-high speed steel (semi-high speed steel).
Large Size Rolling Mill Stand Roughing Stand Rolling Mill Intermediate Stand. All Products. Electric Arc Furnace (10) Water Cooled Panel (7) Water Cooled Power Cable (7) CCM Continuous Casting Machine (10) Copper Mould Tube For CCM (15) Copper Mould Plate (12) Furnace Refractory Bricks (8)
A large Midwestern steel mill was experiencing excessive downtime due to frequent spindle repair and replacement on their hot strip mill roughing stand drives. The roughing mill work rolls require extremely high torque to compress/reduce 10 thick automotive quality heated steel slabs down to 1- 2 thick.
Primetals Technologies has installed or upgraded more than 1,000 rolling mills on six continents. These mills have set worldwide benchmarks for technological leadership, reliability and performance. Red Ring Series 5. The Red Ring housingless stand design has a high reputation for roughing, intermediate and finishing applications.
A twin-stand Steckel Mill combines Steckel technology and tandem rolling. This mill type gives you the capacity to produce high-quality hot strip on a Steckel mill at production rates of 1 - 1.2 million t per year (without roughing stand) or up to 1.8 million tons per year with roughing mill.
With over 56 years of rolling history and experience, our steel rolling mill near Ashland, KY, serves clients nationwide through rail and truck shipping. Our rolling mill consists of two roughing stands, nine finishing stands, and a team dedicated to exceptional workmanship.
COLD ROLLING MILLS SMS group Extracts from various newsletters ArcelorMittal Dunkirk chose SMS Demag to supply new main gear units for the roughing stands of its hot strip mill. The modernization aims to ex-pand the product spectrum and cut the maintenance cost of the mill. Based on a study worked out by SMS Demag on the drives of the roughing
Aug 21, 2018 This rolling line was originally supplied by SMS and is in operation since 1967. ALUNORF selected SMS group as their reliable partner to modernize the hot rolling mill in three steps with the target to boost output and to further improve flexibility and the product quality A major upgrade of the roughing stand A new edger mill
A typical layout of the mill is shown in Fig. 8.16. The heated metal is first rolled in two high roughing stands. Many merchant rolling mills use three high rolling stands for intermediate passes. The three high stands or roughing stands may be followed by a few continuous lines of rolling stands for rolling specific profiles.
For each speci c rolling mill application, the most appropriate motor technology is selected by TMEIC resulting in an optimal drive solution, typically Salient pole type synchronous motors are applied for large power and/or heavy torque applications, for example hot strip mill roughing and finishing stands. Excellent torque characteristics
The range of our expertise includes the successful commissioning of the following 2-HI Skin Pass Mill. 4-HI Cold Rolling Mill. 6-HI Cold Rolling Mill. 20HI Stainless Steel Cold Rolling Mill. Hot Rolling Roughing Stand. Hot Rolling Tandem Mill. Automatic Gauge Control Systems. Coolant Filtration Systems.
Mill Stand can be made available by us from 210 mm (8inch) size up to 600 mm (24inch) size options. Here, we make use of only steel casting C.I ultra sonically tested material in grades as per the specified requirements so as to provide for optimum functional support in
Sometimes roughing stand itself may produce manufactured articles to a predetermined final thickness. More often - the production of the roughing stand goes as an initial billet to subsequent rolling stands (hot or cold rolling) to further reduce the thickness to an aluminum strip or even aluminum foil (less 0,15 mm). Mill rolls - workers and ...
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