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 …
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 ...
Steel Mill Rolls Thomasnet. Web1 day ago Southern Metal Fabricators, Inc. Albertville, AL Custom Manufacturer*, Service Company $1 - 4.9 Mil 1991 10-49. Custom manufacturer of iron amp steel mill rolls, carbon amp stainless steel construction. Refurbishing, repair, rebuilding, resurfacing, machining, design, engineering amp balancing services.
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 ...
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 ...
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 …
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 …
Where h k is the reduced height of pass.. F K is the area of the metal.. 5 max is the maximum width of the pass, and D av is the average diameter of the roll.. Pitch Line, Line of Rolling. Fig. 1.26 Pitch line, line of rolling.. The line passing in between the axis of rolls divide the distance between pinion centers into two parts is called "Pitch line of rolling".
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 ...
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.
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), …
Indefinite chill cast iron rolls are used in: • Roughing mill rolls of Billet and Merchant Mill. • Intermediate and finishing rolls of Wire rod, Merchant Mill and Light Structural mill. • …
Casting rolls can be divided into two categories: cast steel rolls and cast iron rolls according to materials; according to manufacturing methods, they can be divided into two …
cast rolls, cast iron rolls, cast steel rolls, chilled cast iron rolls, types of rolls used in rolling mills. Home; HSS Rolls; Products. Tungsten Carbide Rolls; ... LMM GROUP provides world-class quality mill rolls that's designed for your specific applications. Home / Cast Rolls. PRODUCTS. Cast Steel Rolls (5) Cast Iron Rolls (6)
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 …
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 …
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 ...
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 ...
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 …
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.
These cast steel mill rolls have qualities and grain structure like steel although the carbon content may be quite high (up to 2.5%). The cheapest rolls in this group are plain carbon steel rolls. ... Chill Cast Iron: The roll casting is performed vertically with barrel in chill moulds. The chill surface is very hard and provides good finish ...
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 ...
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
HORIZONTALLY SPUN CAST IRON, HIGH CHROME, HIGH SPEED STEEL WORK ROLLS AND SPUN CAST IRON BACKUP ROLLS. ICDP, High Chrome, HSS, and Synergy Roughers; 19.6 – 53.1 inches diameter ... 66.1 tons maximum finished weight . High Speed Steel; Synergy 100 . Roughing Mill Work Rolls; Synergy 500 & 700; …
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.
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 ...
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 ...
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.
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.
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 …
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 ...
Leveling rolling mill back up roll. Steckel mill. Back up roll. Thin plate billet continuous casting tandem mill. rough、finish rolling back up roll. Wide&thick plate. Medium plate mill. Rough rolling、finish rolling back up roll. Alloy nodular cast iron roll. Nodular composion cast iron roll. Large universal section steel&rail bean mill
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.
Casting rolls can be divided into two categories: cast steel rolls and cast iron rolls according to materials; according to manufacturing methods, they can be divided into two categories: integral casting rolls and composite casting rolls. ... The roll was successfully applied to Baosteel's Φ1300mm l blooming mill. In 1997, Maanshan Iron and ...
Conventional Mill Rolls. Professional Rolling mill rolls manufacturer with 20 years of production experience. 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 and cold plate and strip rolling mills.
Long-term supplier for Gerdau. Certification:ISO 9001, ISO 14001 and OHSAS 18001. Annual capacity: Cast rolls 30,000 tons/year；Forged rolls 5,000 tons/year. Main technical staff and key workers are with over 20 years experience in roll industry. LMM GROUP main products focus on the cold and hot plate & wide strip mill rolls and heavy section ...