rolling mill, and 4 stand finishing rolling mill) was built by Morgan-Sumitomo Heavy Machinery Co. Ltd.. In the 1980s, the aimed qual-ity of products was shifted toward high-value-added special steel quality, and, to achieve this, in 1986, a three-roll finishing rolling mill (applied to products of 13–70 mm in diameter) was employed
Feb 24, 2017· We cooperate closely with lots of mill design companies for the supply of 650mm Mill, 900mm Mill, 1050mm Mill, 1250mm Mill, 1450mm Mill. such as Xi'an Kairui, CISDI, WISDRI, XHMRI etc. Name Type of material Hardness Hardness deviation Back-up roll 60CrMo, 9Cr2Mo, 86CrMoV7, 70Cr3Mo 60-80 HSD 2-3 HSD
Photo 1 Hot finishing mill Stand no. Manufacturer Type Non-reversing 4-stands Main motor rating Max. rolling force Max. rolling speed Roll dimensions Profile actuator F0 IHI/Toshiba 5000 kW AC 40.0 MN 112 m/min WR 800 x 2850 mm BUR 1620 x 2850 mm WRB TP roll (top / bottom) F1-F3 IHI/Fuji Denki/Toshiba 3750 kW DC
Four-High: A 4-HI mill may be used for finish rolling of thin gauge stock. 6-HI roll inserts are also available for narrow width ribbon and foil products. Combination: A combination rolling mill is a versatile "two-in-one" type of metal rolling mill that permits both 2-HI and 4-HI rolling operations.
FD Machinery | Tube Mills, Pipe Mills, Entry Systems, Cut-offs, Accumulators, Slitters, Hydro-Testers, End Finishing, Square & Rectangular Tube Mills, ERW Tube Mill ...
Primetals Technologies receives final acceptance for revamp of 1,700 mm hot strip mill at Ilyich steel in Ukraine Find out more 20.08.2020
RWF 4 HI, REVERSIBLE COLD ROLLING MILL. Material- Carbon Steel Material Thickness max/min - 6.5mm/0.20mm Entry Uncoiler, Snubber Roll, Straightener Coil Weight - 7 ton Coil outside diameter, max - 1400 mm Coil inside diameter - 508 mm Max material w...
Finishing Mill Rolls Description: Used for early finishing stand and late finishing stand (Wire mill, steel rod mill, steel bar mill). With a high wear-resistant properties and anti-crack, anti-peeling, anti-prints capacity. These types of roll ensure that the plats surface quality and dimensional accuracy.
ROLLING MILLS: Flat Product Mills – Mill Processing & Finishing Applications in which our knives are used include Flat Rolled Coil and Sheet Processing Lines for: Cut-to-Length Galvanizing Hot Roll Finishing Recoil & Inspection We manufacture every type of k
Dec 03, 2015· The roughing mill also contains edger rolls which are used to roll the edge of slab and center it. The hot strip mill can be either a high performance mill or a compact mill. The difference in the two mill types is the coil box which, in compact hot mills, is installed between the roughing and the finishing mill.
The finishing mills roll the rolling stock in tandem, meaning each bar is rolled through all finishing stands at once. Laminar cooling of the hot rolled strip: After exiting the finishing mills, the strip is carried down by a large number of individually driven rolls through banks of low-pressure, high-volume water sprays that cool the red-hot ...
Mill 2 Sections Producing on Mill 1 Nucor-Yamato Proposed Roll/Close Schedule * ISO 9001:2015 Registered * September 2, 2020 Close Dates for all items, if available, are shown immediately behind the status of the book week Highlighted items will close in the next week - All sections close at 4 PM Central on the date indicated
finishing mills, which will roll the steel in tandem with one another. 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 28:1 .
Dec 10, 2015· As above but including 0.4 to 1.0 % Mo, Work rolls, Mill conditions is to be stable: 55-65: Alloy indefinite chill rolls. Temperature fluctuations are to be avoided by cooling, Work and Finishing rolls: 65-85: Alloy chill rolls, Cast Ni alloy iron, Good work hardening, Finishing rolls: 65-90
rolling mill, dedicated roll cooling systems are required to fulfill the required functions. Examples are suitable roll cooling and lubricationsystems to fully utilize the advantages of HSS rolls in hot strip mills, and selective roll cooling systems as a method to control the flatness of the strip in cold rolling mills.
Currently, work roll shifting mill is the most effective mill for strip shape control [12, 13] because it improves the strip crown accuracy and edge phenomenon, as well as permitting schedule free ...
Besides this a good control throughout the finishing mill is required. Pass Design The leader sections for the multiple slit rolling pro-cess, e.g. square, rectangular or round have to be of very close tolerance. This requires: * Correct pass profile in the rolls * Correct roll gap to ensure no overfill * Correct pass alignment between top and ...
3-roll Reducing & Sizing Block as finishing block for bar and/or pre-finishing block for wire rod within the range of Ø 5.0 mm – 160.0 mm as well as corresponding hexagon dimensions 3-roll RB 3-roll Reducing Block applicable in roughing and intermediate mills of wire rod and bar mills to produce intermediate sizes within the range of Ø 12.0 ...
We offer work rolls for finishing mills used by blast-furnace and electric-furnace steelmakers to manufacture hot strip. Rolls for H- beam Steel Mills. We offer rolls for mills that produce H- beams steel which are widely used in buildings, bridges, ships, and quay walls. Horizontal rolls and vertical rolls are combined to make a set.
Mar 01, 2004· Metal finishing rolls range from an Ra of 0 to 0.5 micro-inches for a highly polished mirror finish for optical-grade products, up to Ra 50 or 60 micro-inches for satin-finished products, or possibly as much as Ra 300 micro-inches for embossed or coarsely textured products. Ceramic coatings, which are porous, start at around Ra 2 micro-inches.
– Roll into cuts with a face mill as described below under Toolpath Considerations. – If you don't need a square shoulder, a 45 degree lead angle facemill will often leave a better finish than a 90 degree .
At today's demanding condition, maintaining stable operation of rolling mill is becoming difficult. 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.
The motorisation of the finishing mill has therefore already been upgraded with the most modern AC-drive technology. By doing so our engine power has gone from 60MW to 93MW. Two finishing stands were build (F1 and F2) to increase our rolling forces from 3100 to 5000 tonnes, the finishing stands F3 and F4 were further improved.
Structural Investigations of HSS Rolls for Hot Strip Mill Jacqueline Lecomte-Beckers Jerome Tchoufang Tchuindjang Roger Ernst Jean-Pierre Breyer ABSTRACT High Speed Steel (HSS) cast rollsare used in front finishing standsof hot strip mills (HSM). Good wear resistance and hardnessat high temperatures, are defining featuresof HSS.