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Cast Back up Rolls for Rolling Mill1
Metallurgy MachineryCast RollsHot Strip Mill
TSR Metals Tech Co., Ltd.
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Product Description Cast Backup Rolls for Rolling MillTSR is a professional roll company integrating technical service and integration, with a number of roll experts team composed of doctor of materials and metallurgy, and is committed to becoming a world-class roll technology service provider. We provide all kinds of hot rolling mill rolls for steel industry. Our users now cover more than 30 different countries. Our manufacturing plant covers an area of more than 300, 000 square meters, with an annual production capacity of more than 20, 000 tons of various large, medium and small rollers and roller rings, and a machining capacity of 30, 000 tons. Our company passed ISO9001: 2008 quality management system certification. TS Rolls Cast Back Up Rolls are produced to a high hardness level of up to 75 HSC through a Differential Hardening process. The superior wear and mechanical hardening resistance are related to the bainitic / martensitic matrix and complex carbides finely distributed. In the Differential Hardening process the monoblock rolls are first heat treated to produce a fine pearlite necks and core structure followed by the differential hardening of the working layer (Austenitize, water quench and double tempering) to develop the optimum microstructure in the working layer.The rolls are monoblock cast so no shell / core interface problems.Application:Back Up Rolls for 4-Hi Stands of Hot and Cold Strip mills and CSP Mills.Work Rolls for 2-Hi roughing Stands of Hot Strip Mills (3 % Cr).MATERIAL GRADECHEMISTRYBARREL HARDNESS(HSC)CSiMnCrNiMoCast Back-up Roll3%Cr0.30-0.500.30-0.600.40-1.02.50-3.500.60-1.500.30-0.6055-624%Cr0.30-0.500.30-0.600.40-1.03.50-4.500.60-1.500.30-0.6060-655%Cr0.30-0.500.30-0.600.40-1.04.50-5.500.60-1.500.50-0.8065-75 TYPICAL PHYSICAL PROPERTIESNeck Hardness (HSC)Tensile Strength (N/mm2)Unevenness of Barrel Surface Hardness (HSC)Difference of Shell Thickness≤42shell ≥1500 core & necks ≥750<3<10 TECHNOLOGY--MELTINGTSR Rolls factory is equipped with a variety of smelting equipments, such as EBT electric arc furnace, LF double-bit refining furnace, VD-VOD vacuum furnaces and etc. Advanced smelting equipment supplemented by temperature control, component analysis and other testing equipment ensure that each furnace is in line with the requirements of molten steel.Steel FoundryEBT Arc Furnace; Capacity 55TLadle Furnace, Double position; Capacity 55 T EachVacuum Degassing VD + VOD, 9 units; Capacity 90 T EachMedium Frequency Induction Furnaces, 2 sets; Capacity 20 T EachLarge Rolls Foundry2 x 20 T Medium Frequency Induction Furnaces2 x 10 T Medium Frequency Induction Furnaces2 x 7 T Medium Frequency Induction Furnaces2 x 3 T Medium Frequency Induction FurnacesSmall Rolls Foundry2 x 3 T Medium Frequency Induction Furnaces2 x 1.5 T Medium Frequency Induction Furnaces2 x 1 T Medium Frequency Induction Furnaces --CASTINGTSR Rolls applies advanced roll casting technology to first-class foundry equipment. Our main production processes use computers to control and select parameters automatically. So we can ensure that each batch of rolls has consistent production process control. Every step is traceable by our Electronic recording system. Whether it is static casting or centrifugal casting, our products have excellent performance.7 Horizontal Spin Casters (Centrifugal Machines)1 Unit ? 1.600 mm x 4.500 mm B.L.1 Unit ? 1.400 mm x 3.000 mm B.L.2 Units ? 800 mm x 2.600 mm B.L.1 Unit ? 500 mm2 Units ? 300 mmPlus a complete set of chills, chillers and moulding tackle to cast all kind of rolls including big section rolls with the barrel shaped with grooves and collars in as-cast condition. --HEAT TREATMENTDuring the manufacturing process of rolls, many materials need to pass one or more heat treatment to further achieve the most appropriate mechanical properties and good microstructure. The resistance furnace of TS ROLL can achieve multi-point precise temperature control to ensure uniformity of the furnace temperature. Between different furnaces, we use a unified computer control to achieve the furnace heating and cooling consistency in order to ensure the rolls from different furnaces with same microstructure and performance.Differential Heat Treatment Furnace ? 1.600 mm x 2.800 mm B.L.Spray quenching machine, Maximum capacity: ?1800mm rollsElectrical fumaces, Maximum capacity: 200T 18 sets - bogie type7 sets - low-temperature11 sets - high temperature --MACHININGTSR Roll has a machining shop of more than 15.000 square meters, including the lathe, boring machine, grinding machine and other modern processing equipment for rolls. Thanks for the first-class operator working on high-precision CNC equipment, it is easy to produce the rolls with various kinds of grooves and precise tolerances.CK61160 CNC Lathe, Maximum capacity: 32TMK84200 CNC Grinding machine, Maximum capacity: 50TC9125*6/63 Turing and Boring machine, Maximum capacity: 63TT6920D Boring machine --QUALITY ASSURANCE The high performance requirements of today's mills require reliable rolls capable of remaining in the production cycle longer than ever while still assuring a high quality of the rolled products. TS Rolls has built a consistent quality control throughout the manufacturing process. Our aim is supplying the customer with reliable rolls capable to perform better, contributing to customer benefit, cost reduction and satisfaction.Since the beginning TS Roll obtained the ISO 9001:2008 Quality Management System Certification. Based on our consistent adherence to the quality management, TS Roll products quality has been universally acclaimed by dozens of customers worldwide.Emission Spectrometer ARL - 3460; Two setsCarbon & Sulphur Analyzer CS-80Hydrogen & Oxygen AnalyzersThermal AnalyzerHardness Testers (Portable and Laboratory sets)Ultrasonic Testing Equipments (Several units)Material Testing Machine WAW-600Charpy Impact Test Machine JSB-300 SERVICE AND SUPPORTAt TSR Roll, we are focused on the roll service. Our Technical Service will help you to solve questions about roll maintenance, roll wear, roll damages, roll configuration, shape of the roll, surface hardness, roughness, temperature distribution and damage inspection among others. The aim is reducing the Total Cost of Operation for the customer by supplying reliable rolls and advanced roll service always with strict adherence to the delivery time.Distribution of Customers & Service CenterFor more information about TSR, please visit our website: tsroll.en.made-in-china.com
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