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These mills are normally continuous mills consisting of three sets of rolling stands namely (i) roughing group of stands, (ii) intermediate group of stands and (iii) finishing group of stands. The input material for these mills is normally billet.
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John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014 1.2.5 Cooling. After exiting the finishing mill, the strip, at a temperature of 800–900°C, is cooled further under controlled conditions by a water curtain on the run-out table.The run-out table may be as long as 150–200 m. Cooling water is sprayed on the top of the steel at a flow rate of 20,000–50,000 gpm; and …
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Housing-less concept is suitable for roughing mills, intermediate mils and finishing mills for Rebar rolling mills, Bar rolling mills, Wire rod rolling mills, Section rolling mills. Mill stand sizes are varied in accordance with the required dimensions of rolls and necks, the size & shape of rolling pass, the groove design as well as the ...
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stand (F0) upstream of the three existing stands (F1-F3). Photo 1 shows the appearance of the finishing mill and Table 1 shows main specifications. The newly installed F0 stand is of 4-high construction with hydraulic screw-down, and to provide for the rolling of * Fukui FA Engineering Sec., Fukui Planning Dept., Plant & Facilities Div.
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Modernization of a 2-stand temper mill at U.S. Steel Kosice s.r.o., Slovakian Republic Based on ABB IndustrialIT for Cold Rolling Mills, ABB has supplied a complete solution for the modernization of the two-stand rolling mill at U.S. Steel in Kosice. The ABB scope of supply included the operator concept, pre-studies and simulations, engineering
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YGH45. Used in the first and second stands of finishing rolling mills and in the stands of per-finishing rolling mills. For every stand of rolling lines for low speed rolling, low precision and unstable operations. YGH55. High binder content in YGHseries, good toughness and thermal crack reslstance.
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Finishing Mills. Finishing mill is the top cross 45° high-speed wire rod finishing mills designed for producing wire rod. Rolling by 10 unit rack continuous micro-tension rolling mill, the Φ17~Φ21 mm of rolled piece can be rolled into Φ5.5~Φ16 mm wire rod. The mill guaranteed exit speed is 90 m/s. (When the final wire rod size is Φ5.5 mm)
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The main task of the roughing stand of the bar mill is to reduce the cross-section at high temperature, which has a high rolling force and low rolling speed. Generally, the roll performance should be considered from the two aspects of ensuring the roll strength and hot cracking resistance.
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The final dimensional quality of the rolled product is determined by the rolling stands within the finishing mill. The dimensional accuracy in the final product depends on many factors including the initial stock dimensions, roll pass sequence, temperature, microstructure, roll surface quality, roll and stand stiffness and the stock/roll friction condition.
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In the finishing rolling stand of the 1422 mm hot strip mill the present invention was applied to the fourth rolling stand of the tandem rolling mill consisting of seven rolling stands as shown in FIG. 7. Namely the grooved roll was adopted as the upper working roll, whose diameter was a standard diameter of 360 mmφ.
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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 have a complete …
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rod rolling mill and narrow strip steel rolling mill finishing stand CCⅡ NiCrMo Chilled cast iron rollⅡ 62-75 HSD 35-52 HSD ＞150 CCⅢ NiCrMo Chilled cast iron rollⅢ 65-80 HSD 32-45 HSD ＞350 CCⅣ NiCrMo Chilled cast iron rollⅣ 70-85 HSD 32-45 HSD ＞350 Roll diameter ≤500mm; Roll length ≤1000mm Alloy Graphite Roll
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stability in finishing mill stands is a key factor among the relevant factors that influence quality and productivity. The process stability of finishing mill stands is significantly influenced by the assembly accuracy between the mill stand components. In a four-high mill assembly, work roll chocks and backup
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I claim: 1. A single strand hot rolling mill finishing section comprising: a plurality of multi-stand prefinishing rolling units arranged along a first pass line segment; transfer means for selectively shifting said prefinishing rolling units into and out of operative positions on said first pass line segment; a multi-stand finishing rolling unit and a multi-stand post finishing rolling unit ...
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The function of 135m finishing mill group The finishing mill group is composed of top crossed 45° High-speed wire-rod finishing mills. The finishing mill group is located in high-speed wire-rod workshop. Through 10 unit rack the continuous micro-tension rolling mill will be transported upstream Æ 17 ~ Æ 21mm of rolling, rolling become Æ 5.5 ~ Æ …
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When the composite hard alloy roll ring is used in the finishing stand of a high-speed wire rod mill or a small bar mill, its single-slot rolling amount is 10 times that of ordinary cast iron rolls, and each grinding amount is only cast iron. 1/3 to 1/2 of the roll, therefore, compared with the conventional cast iron roll, the total rolling ...
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The alloy ductile iron roll is used in the finishing mill stand. 2.4 Roll of Plate Mill. In our country, there are three rolls single stand, two rolls or four rolls rough rolling, and four rolls double stand. The 2300mm Laut plate mill in our country is mostly a single stand.
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Typical arrangement of rollers for rolling mill: Continuous rolling mill: Uses a series of rolling mill and each set is called a strand. The strip will be moving at different velocities at each stage in the mills. The speed of each set of rolls is synchronized so that the input speed of each stand is equal to the output of preceding stand.
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> Rolling Mills > Reheating Furnaces > Rolling Stands > Shears & Saws > Cooling Beds > Finishing Facilities > Gearboxes > Robots & Tilters > Guides > Mill Ancillaries > Meltshops > Electric Arc Furnaces > Ladle Furnaces > Continuous Casting Machines > Ladles > Scrap Buckets > Preheaters > Other Meltshop Equipment > Auxiliary Plants > Water ...
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Intermediate/Finishing stand of Wire Rod Mills, TMT Mills, Merchant Mills and Structural Mills. Finishing stand of Strip, Sheet and Flat rolling mills. We have great pleasure in introducing ourselves as one of the leading manufacturers and exporters of superior quality Indefinite Chill Cast Iron Rolls to steel rolling mills across the globe.
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(3) The import guide for the final stand of finishing rolling; (4) The water-cooled guide groove is severely worn; (5) After the finishing mill, a certain water tank or a certain water valve is adjusted too large, resulting in large water resistance or residual water in the water tank (6) Problems with the installation or design of the spinning ...
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The paper presents the results of asymmetrical plate rolling in the finishing rolling stand of a 3600 mill. The investigation was carried out for S690Ql steel sheets. Tests were conducted for two types of the asymmetric rolling process. In the first case, the asymmetry of the process was introduced by varying the speed of the upper working roll ...
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Cold rolling mill is a new type of steel bar cold rolling equipment. The machine can process hot-rolled wire rods and circles with a diameter of 6.5 mm to 12 mm into cold-rolled ribbed bars with a finished specification diameter of 5 mm to 12 mm. The cold-rolled ribbed steel bar rolled by cold rolling mill is an updated product of cold drawn ...
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The steel roughing rolling mill stands are used to reduce the thickness of the steel while at the same time extending the overall length. Steel Roughing rolling mill stand is an important part of a work stand, roll bearing chock and roller adjustment device is installed on the frame.
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2.3 Roll of Medium Section Mill. There are many kinds of rolls of 650mm, 630mm, 580mm, and 500mm used in the medium section mill in China. Most of the rolling mills are of three rolls open horizontal type. The roll material used in each stand has not changed greatly for many years. Low alloy cast steel rolls are almost used in one frame.
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Rolling mill overview Finishing rolling stand before in-line thermoprocessing. 7 Gear spindles Red Ring gear spindles are customized with Siemens VAI's proprietary design, and were developed over the years and continuously improved. The gear spindles offer a compact and reliable construction. In fact, they present
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An industrial application is made on the last stand of a CSP® hot finishing rolling mill, 20 as shown in Figure 1. It consists of seven-stand four-high rolling mill, and the strip is non-oriented silicon steel. The loopers are positioned at inter-stand to control strip flow.
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