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Generally classified by manufacturing process: The roll whose working layer is white-faced structure (matrix + carbide) due to the chilling effect of the metal type is called chilled cast iron roll. Cast iron rolls use the above method, but appropriately increase the carbon content of molten iron to obtain a hemp structure (matrix + carbide + graphite), …
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WORLD CLASS ROLLS OF THE HIGHEST QUALITY FOR OVER 100 YEARS. The WHEMCO companies in Pennsylvania and Ohio, USA manufacture a full range of mill rolls – spun cast iron, cast steel and …
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DS-GS-067-0213-1.0-01-EN. The utilization of Danieli High-Speed Steel Rolls offers: >An increase in roll lifetime compared with standard cast iron rolls (3-5 times bigger) thanks to longer groove lifetime (2-3 times) and reduced redressing thickness (-10 to -50%). >Reduction of heat cracks and mechanical impact cracks compared with tungsten ...
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Our rolling mill rolls are suitable for various metallurgical industry fields, including the production of bars, wire rods, section steel, strips, etc. ... High-speed steel rolls developed by LMM the amount of steel passing in a single groove (times) is 3 to 5 times that of cast iron rolls. ... According to the classification of materials, the ...
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The schematic diagram of different parts of the roll groove is shown in Figure 1. Figure 1 Different parts of the roll groove. 3.2 Common problems of hole processing. 3.2.1 The hole pattern does not conform to the template or dimensional accuracy (1) There is a gap at the bottom of the groove. ... Centrifugal cast iron roll; …
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Compared with traditional ductile iron rolls and high-nickel-chromium rolls, high-speed steel rolls have higher steel passing per groove (times) due to their good wear …
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Picture. Leon Roll China is a manufacture From China,Localed in Changzhou jiangsu, near Shanghai and Baogang steel,we are a casting and machining foundry who can produce cast iron roll.steel rolls.cold rolls.roller rings,cast forged mill roll metallurgy roll for roll mill. The size from dia 220mm to 1200mm.
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Effect: Compared with traditional ductile iron rolls and high-nickel-chromium rolls, high-speed steel rolls have higher steel passing per groove (times) due to their good wear resistance, which saves roll changing time, improves rolling mill operation rate, reduces roll consumption, and reduces production. cost, and improve the overall efficiency of the …
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The technicians of Anhui Huanbowan High-speed Steel Roll Co., Ltd. studied the quenching process of a newly developed forged high-speed steel cold-rolled work roll material, and analyzed the effect of quenching temperature on the structure, grain size, retained austenite of high-speed steel rolls The influence of hardness and …
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The cast iron grades varied from mild-hard, half-hard, and clear-chill. In the clear-chill rolls the barrel had a white iron (free from graphite) layer while the roll core and the neck were of grey iron. Later cast steel rolls were developed with a C content of upto 2.4 %, with and without graphite.
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High-speed steel rolls generally have a single-groove (time) steel passing capacity that is 3 to 5 times that of high-nickel-chromium rolls. The single groove (times) has a high amount of steel, which saves the time for roll changing, improves the operation rate of the rolling mill, reduces the consumption of rolls, reduces the production cost, and improves …
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Get alloy cast steel rolls or forged rolls at best price on various grades and quantities based on your requirements. +91 9999116144. MON-SAT: 9AM - 6PM. Home; ... Kisco supplies the best quality alloy Steel rolls for a multitude of mills like TMT, structural, paper, plate etc. We are serving some of the renowned customers like SAIL, RINL, SKS ...
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PearliticNodular CastIron Rolls. Pearlitic and Pearlitic / Sorbitic Nodular Iron are nodular grades alloyed with Cr, Ni, and Mo with Ni ranging between 1.50% in the softer grades and 4% in the harder grades. The right balance of Si and Cr will help to develop the adequate hardness level. The rolls can be cast static or spun cast depending of ...
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A STEEL. "On September 10, 2015, in the rolling process of the steel rolling mill, the LMMGROUP high-speed steel bar rolling experiment was carried out on the first bar line C12 to four cuts, and C14 three cuts to K1, K2, K3, and K4. According to the trial situation, The average amount of steel passing through LMMGROUP rolling is about 50%-60 ...
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The company covers an area of 100,000 square meters, including two complete production lines for cast rolls and forged steel rolls, processing workshops, product research and development centers, testing centers, training centers and office buildings and other supporting facilities. The factory environment is very beautiful.
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Abstract: This paper makes an in-depth analysis of the spalled pieces and "shoulder" on the side of the roll side of the 1422 hot continuous rolling back-up roll in a steel plant. The results show that work hardening, uneven wear, contact fatigue, unreasonable design of roll side chamfer and defects in the working layer are the main …
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The characteristic of the SG iron roll is that the graphite is evenly distributed from the roll body to the core, so it has high tensile strength, can withstand heavy loads, and has good wear resistance. The matrix structure is carbide, pearlite or acicular bainite. Alloy ductile iron rolls can be roughly divided into pearlitic ductile iron ...
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The roller is an important part of the steel rolling mill. It uses the pressure generated when a pair or a group of rollers rolls to roll the steel. It mainly bears the effects of dynamic and static loads, wear and temperature changes during rolling. During the steel rolling process, friction occurs between the roller and the material being rolled.
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Rough rolling and finishing work rolls and small section steel and bar mill finishing rolls, etc. There are two forms of heat treatment for high chromium cast iron rolls, one is subcritical heat treatment below the critical transformation temperature, and the other is high temperature heat treatment above the critical point A3.
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standard cast iron rolls (3-5 times bigger) thanks to longer groove lifetime (2-3 times) and reduced redressing thickness (-10 to -50%). > Reduction of heat cracks and mechanical …
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Cast steel iron rolls, forgent rolls, work rolls, backup rolls, hss rolls. mainly produces all kinds of metallurgical rolls for various types of steel, bar, high-speed wire and strip hot …
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One Stop Solution for Rolling Mill rolls WE can provide characteristic service and differentiated products according to the different conditions of rolling mill. Get a qoute 86(411)84174804 Cast iron rolls Learn More Cast steel rolls Learn More Casting rolls Founded in 2007, LMM GROUP mainly produces all kinds of metallurgical…
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HSS rolls generally have a single-groove (time) steel passing 3 to 5 times that of cast iron rolls, and the total steel passing can be guaranteed to exceed 4 times on average. Overview Advantages
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As a widely used mechanical equipment for rolling steel, the rolling mill requir. mill roll, mill roller, mill rolls, rolling mill roll, steel rolling mill rolls, continuous caster, continuous casting machine, rolling mill, hot rolling mill, hot strip mill, 2 high rolling mill, 3 high rolling mill, 4 high rolling mill.
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cast iron amp;amp steel mill rolls with groove - MC … Leon mill Roll China co.,ltd. Leon Roll China is a manufacture From China,Localed in Changzhou jiangsu, near Shanghai and Baogang steel,we are a casting and machining foundry who can produce cast iron roll.steel rolls.cold rolls.roller rings,cast forged mill roll
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Nodular cast iron is the most common roll grade in hot rolling of billets, sections, bar and wire rod, narrow strip and seamless tube. Pearlitic iron rolls with additional Cr content …
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Pearlitic ductile cast iron roll Production Equipment Quality Assurance Production Proces Mill Rolls Type Application Beam, bar, wire rod mill rough rolling, the rolling,pre-tinishing mill stand; seamless steel pipe mill reducing rack set Production Equipment Melting Equipment The company possesses eight melting facilities,including an Electric Arc …
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Kennametal composite mill roll assemblies are designed for use in the high torque, low speed (<10m/sec), intermediate strands of wire rod mills where traditional cast iron or PM steel rolls are used. These roll assemblies are supplied in two axial clamping systems – a traditional hydraulic clamp and our new mechanical clamp that's easy to ...
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KOCKS Cemented Carbide Roll Rings. KOCKS Cemented Carbide Roll Rings for KOCKS three-roll mill to replace the original ball-milling of cast iron roll ring are mainly used for the production of bearing steel, spring steel alloy steel and other special steel. The steel surface and tolerance controls are clearly better than using other cast iron ...
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The high-speed steel roll ring is a steel-based roll ring, which implements the national cast steel roll standard GB/T1503-2008. Its main alloy components are vanadium, nickel, tungsten, molybdenum, niobium, cobalt, and other elements, the carbon content is less than 1.6%, and the phosphorus content must be controlled below 0.03%, the chromium ...
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High speed steel rolls; Indefinite chilled SG cast iron rolls; High Chrominm steel rolls; Graphite steel rolls; Alloy cast steel rolls; Semi – steel rolls; Rolling mill rolls Vidio; tungsten carbide rolls ring. Cemented carbide roll ring; Grooved tungsten carbide roll ring; Roll rings for high speed rolling of ribbed steel bars; Composite ...
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Contains high alloy elements、the single-groove (time) steel passing is higher, improves the overall benefit. The HSS rolls have good thermal stability, and the roll surface has high hardness and good wear …
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Before the 1980s, the roll material used in domestic steel rolling mills generally used nodular semi-chilled cast iron rolls, and the hardness of the roll body was only 40~45HSD. Due to the production of nodular semi-chilled rolls by cold-type sand-hanging process, the hardness is low and the structure is relatively coarse, wear …
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The wear problem of cold rolled work rolls has been discussed extensively and deeply: for example, the wear caused by aluminum oxides in cold rolled steel; Fine wear particles are produced, and the particles are oxidized to form abrasive particles, which directly lead to the wear of cold-rolled work rolls; during the cold-rolling process of ...
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In 2002, a centrifugal composite semi-steel backup roll was developed and trial-produced in China. The outer layer of the roll body is made of semi-steel material, and the body and neck of the roll are made of ductile iron. Hot rolled medium-wide steel finishing mill. The semi-steel roller ring is produced by centrifugal casting.
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centrifugal casting sinkroll. Sink roll is one of the three rolls in CGL (continuous galvanizing line); with other two rolls, stabilizer roll and back-up roll, they are the main composition of continuous galvanizing line.Sink roll is used in zinc pot, usually produced with 316L or 317L. Working temperature is 500ºC - 700ºC.
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