wear resistance graphite steel roll for rolling mill Heat treatment

(PDF) Wear of hot rolling mill rolls: an overview

(PDF) Wear of hot rolling mill rolls: an overview

improve the resistance to wear of roll materials used in structural mills. In general, rolls contribute some 5 - 15 % of overall production costs i e A$ 1-5 per ton of rolled …Estimated Reading Time: 7 minssp.info US5514065A - Wear- and seizing-resistant roll for …A wear- and seizing-resistant roll for hot rolling has a composition consisting essentially, by weight, of 2.0-4.0% of C, 0.5-4.0% of Si, 0.1-1.5% of Mn, 1.0-7.0% of Cr, 2.0-10.0% of Mo, 2.0-8.0% of V and balance of Fe and inevitable impurities; and has a metal structure comprising a matrix substantially comprising martensite, bainite or pearlite, 0.5-5% in area ratio of graphite, 0.2-10% in ...Cited by: 9Publish Year: 1994Author: Akira Noda, Toshiyuki Hattori, Ryosaku Nawatasp.info Which is the best steel roll for hot rolling?The newly selected 50crnimo and 60crnimo alloy forged steel roll has good wear resistance and a small crack tendency. The newly selected 70crnimov alloy cast steel roll is subject to differential heat treatment after rough opening, which has good wear resistance and satisfactory use.See all results for this questionsp.info What kind of steel is used in rolling mills?The use of high chromium iron (C- 1-2 % and Cr – 15-20 %) and later high chromium steel (C-2-3 % and Cr – 10-15 %) introduced high wear resistance in the rolls. In early 1985, high speed tool steel material was introduced into the rolls. After initial problems were overcome, rolls from these materials gave much better performance.See all results for this question

What are the problems of a rolling mill?


What are the problems of a rolling mill?

The main problems are non-wear resistance and ring crack at the bottom of holes and grooves, resulting in broken rolls. Therefore, it is very important to improve the wear resistance, crack resistance, and toughness of rolls. In the future, several rolling mills have high requirements on the wear resistance of rolls.See all results for this questionsp.info Which is stronger graphite or cast iron rolls?Graphite steel rolls are composed mainly of pearlite with spherical graphite and some carbide. Graphite steel rolls are stronger than cast iron rolls and harder than other steel rolls. The feature of graphite rolls that is better resistance to fire crack and scale adhesion.See all results for this questionsp.info Forged Steel Roll - Back Up Roll For Rolling Mill | …Feb 27, 2020 · The forged steel rolls can be used for hot plate mill and these rolls have the features of rich in alignment, high toughness and strong wear ability. They are made of forges steel blanks and can withstand the special heat treatment for excellent hardness. Cold Rolling Mill. The back up roll and work roll can be used for cold rolling mill.sp.info Rolls - HKT INTERNATIONAL GROUP LTD.The alloy cast steel rolls are made by high quality melted steel with arc furnace and refiner with advanced casting and heat treatment procedure, the rolls also have good wear resistance, and fire crack resistance. Chemical Composition. Symbol. C. Si. Mn. Cr. Ni. Mo. V. Nb. AS40. 0.35-0.45 ... cold rolling mill backup roll. AS50. 60-70 HS. ≤ ...Estimated Reading Time: 2 mins

Steel Rolling Mill Machine: Hot Rolling Roll


Steel Rolling Mill Machine: Hot Rolling Roll

Apr 13, 2021 · At present, there is a trend of using bucket steel rolls to replace forged steel rolls. The roll of the 6VH billet continuous rolling mill in the Baosteel blooming mill is made of forged semi-steel and forged cast iron with 1.7% ~ 2.4% C, which has good wear resistance and poor hot crack resistance.sp.info Wear of hot rolling mill rolls: an overview - …Aug 01, 1994 · Roll wear criteria and rates The properties required of rolls differ in detail at the various stages of the rolling line. While at the initial stage of rolling process the heat shock resistance and the general strength of the material are the dominating requirements, at later stages, resistance to abrasive wear becomes the most important necessity.sp.info PHYSICAL METALLURGY OF A HSS MATERIAL FOR HOT …A. Metallurgical factors determining wear resistance When using those rolls, it was found that the wear resistance of the roll for hot rolling was significantly improved by the VC type fine granular carbides, which dispersed uniformly in the matrix while the other metallurgical factors had little effect (4).sp.info Rolls for all types of Rolling Mills, calcutta, castings ...The extra Carbon and special alloys give extra wear resistance and strength. These rolls are statically cast and undergo a special high temperature heat treatment process of double annealing followed by tempering cycles to give a micro structure consisting of fine pearlitic matrix with spherodised / …

Nodular cast iron acicular roll and ring - Lonsun ...


Nodular cast iron acicular roll and ring - Lonsun ...

Semi-continuous carbides maintain the wear resistance, while at the same time exhibiting high strength and resistance to fire-cracks. The extensive heat treatment procedure ensures an acicular matrix. Acicular roll can be produced by static casting (Monoblock) or by …sp.info Metallurgy of Rolling mill Rolls – IspatGuruNov 13, 2019 · The influence of hardness of the material of the roll on the wear resistance is only marginal. The contents of C and alloying elements and the microstructures are more important parameters for wear resistance. Frictional force – In the rolling mill, the roll and the material being rolled are both pressed together by the same load. Hence for ...sp.info High Wear Resistance Working Rolls For ... - FAMOUS SteelHigh Wear Resistance Working Rolls For Finishing Machines Anti Rust Alloy Steel Roller With ASTM Standard. High speed steel mill rolls, produced by horizontal Centrifugal casting process, are all compound rolls with high speed steel as the work layer and nodular iron as the core. The material of rolls contains plenty of alloyed elements such as ...sp.info Rolling Mills Rolls – IspatGuruDec 08, 2013 · Maximum wear resistance in the contact area between roll and rolling stock. It is not easily possible to achieve these properties from a single material. In case of cold rolled flat rolling the solution is reached by surface hardening of the barrel of the forged steel

Effect of MC Type Carbides on Wear Resistance of High …


Effect of MC Type Carbides on Wear Resistance of High …

on wear resistance was clarified from the results of using enhanced indefinite chilled rolls, and the rolling incident resistance (cobble resistance and suppression of surface crack growth) of developed highly wear-resistant cast-iron rolls was evaluated with regard to their use in the later stands of hot strip millsAuthor: Kazunori Kamimiyada, Shinya Ishikawa, Hirofumi Miyahara, Yuji KonnoPublish Year: 2021sp.info EP0665068B1 - Wear- and seizure-resistant roll for hot ...A hot-rolling roll excellent in wear and seizure resistances, which has a composition by weight consisting of 2.0 - 4.0 % of carbon, 0.5 - 4.0 % of silicon, 0.1 - 1.5 % of manganese, 1.0 - 7.0 % chromium, 2.0 - 10 % of molybdenum, 2.0 - 8.0 % of vanadium and the balance consisting of iron and inevitable impurities, a matrix structure consisting essentially of martensite, bainite or pearlite ...sp.info steel rolling mill rolls - AN ISO 9001 : 2015 Certified ...Shree Gautam Rolls, 9001 : 2015 certified company, since 1994, as an exporter and manufacturer, we have always been concentrating on the research and development in production of steel rolling mill rolls, hot rolling mill rolls, chilled rolls, spheroidal graphite iron rolls, alloy steel …sp.info ANADOLUMET Sanayi GmbH Rolls for Rolling-mills, Steel mill ...Applications: plate mills, hot-strip mills, cold-rolling mills Description: Backup rolls weighing 7-230 tones made of alloy-forged steel with Cr content of 1,40-5,50% have an excellent combination of metallurgical and physical properties such as a compact porosity-free microstructure; good ductility and toughness values; high resistance to fatigue, wear and thermal cracking.

Metal Rolls Manufacturer in India - Alloy Cast Steel Rolls ...


Metal Rolls Manufacturer in India - Alloy Cast Steel Rolls ...

The service performance of this roll is superior to normal steel roll; it gives better wear resistance and resistance to fire cracking due to the presence of graphite without reduction of strength and toughness. Ideal for all mills like medium and heavy section where fire cracking is major concern. Common Grades: GPH 50 (48° - 52° Sh C)sp.info Heat treatment of multi-element low alloy wear-resistant steelThe effect of heat treatment on the performances of multi-element low alloy wear-resistant steel (MLAWS), which is used to make the rolling mill torii liner, was investigated.sp.info Alloy Cast Steel Rolls - Mill Rolls | TINVOIt also can be worked as large vertical rolls for broken scale racks, rough rolling mills for section steel & bar and wire rod mills. The cast steel roll produced by TINVO has quality s tandards including ISO, GB, ASTM, DIN, JIS. The support rolls of integral casting and composite casting are all alloy cast steel rolls in the strict sense. The ...sp.info HSS roll and ring - Lonsun Metallurgy Machinery Corp.Duplex High Speed Steel Roll & Ring (HSS ROLL) HSS rolls working layer is a high carbon alloy steel containing Cr,Mo,W,V,Nb.The rolls have high hardness and good wear resistance. The composition and subsequent heat treatment ensure the hardness of the working layer will reach to 80/85 hsc with uniform hardness throughout the working layer. This ...

Adamite Rolls - Leon mill Roll China co.,ltd


Adamite Rolls - Leon mill Roll China co.,ltd

The carbon content of the alloy adamite roll is usually between 1.2-2.3%, the compositions contain Cr, Ni, Mo and other alloy elements. After a special heat treatment process, compared with alloy cast steel roll it has a good abrasion resistance, and compared with cast iron roll it …sp.info How are the Rolls Classified by Material? - Hani TechOct 14, 2019 · It is used as the roughing roll for the rolling mill, the large-sized steel rough roll, the rolling mill, and the hot-rolled strip mill. Vertical rolls for good rolling results. The forging steel roll passes the smelting, forging and heat treatment to make the working layer of the roll body have high hardness, high wear resistance, and ...sp.info Steel Rolling Mill Machine: March 2021Mar 04, 2021 · Since it came out in Japan in 1988, it has been widely used in hot strip roughing mill, hot strip finishing mill, cold strip mill, steel tube mill, section mill, and bar and wire rod mill. The metallographic structure of a typical high-speed steel roll is composed of martensite (or bainite) matrix and high hardness carbides such as MC, M2C, M6C ...sp.info Φ60mm-Φ2000mm Multi Material Heat Resistance Alloy …As one of the most professional φ60mm-φ2000mm multi material heat resistance alloy steel hearth roll manufacturers and suppliers in China, LONSUN is featured by high quality steel mills with competitive price. Please rest assured to buy good quality φ60mm-φ2000mm multi material heat resistance alloy steel hearth roll from our factory.

High Speed Steel Mill Rolls - Wire Industry Tungsten ...


High Speed Steel Mill Rolls - Wire Industry Tungsten ...

High-performance high-speed steel has high wear resistance and hardenability, especially the red hardness at high temperature, which makes high-performance high-speed steel more suitable for manufacturing rolls and roll rings. Therefore, high-speed steel rolls are not only suitable for plate and strip mills, but also for wire and bar mills, and have achieved remarkable results.sp.info Steel Mill Equpment | LEMON YELLOW TRADEForged Steel Rolls. Forged steel rolls be used in the cold rolling line. In order to get better working performance, forged steel rolls should have good wear resistance, good roughness retentivity, good anti-accident and good uniform hardness. LYT could produce the forged steel rolls with the material of 2%Cr, 3%Cr and 5%Cr.sp.info Supply Graphitic Steel Roll Wholesale Factory - Shan Dong ...Product character:For graphite steel roll,its microstructure consists matrix and carbide and its carbide rate is between 1.3% to 2.6%.With different alloy element and heat treatment method,the matrix is pearlite and bainite.As we know that the Cr element can stable the carbide,V element can improve the high temperature property,Ni can ...sp.info Metallurgy of Highly Wear-Resistant Indefinite-Chill Work ...Indefinite-chill materials are used as shell materials for cast work rolls for surface-critical applications in hot rolling mills. Besides a smooth surface quality, a low sticking tendency and low sensitivity against incidents in the rolling mill, the work rolls need the highest wear resistance possible. The microstructure of the indefinite-chill material consists of various carbides ...

Message

You may also leave contact information, we will contact you as soon as possible!

Contact Us
Henan Hardax Iron & Steel Co., Ltd

Tel: 0086.371.86151827
E-Mail: [email protected]
Address: Development Zone, Zhengzhou, China