Hot rolling mills
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Here you will find manufacturers,suppliers and exporters of hot rolling mills from India. These mill are used mainly to produce sheet metal or simple cross sections such as rail road bars from billets.
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Steel Melting Shop (SMS)
Rourkela Steel Plant was the first in Asia to adopt the LD steelmaking process and the first in India to use external desulphurization. It is also the only plant where 100% of slabs are continuously cast. The steelmaking process in SMS involves charging hot metal, scrap, and fluxes into converters where oxygen is blown to remove impurities through oxidation, producing slag. Molten steel is tapped and further processed before continuous casting into slabs. Waste gases are captured and recycled while dust and slag are also recycled in the process.
Steel Making and Rolling (Metalworking): Process & Applications, Rod and Bar...
The steel industry has taken note of the continued growth in steel imports and a number of projects have been planned and are under implementation.In rolling mills, intermediate steel products are given their final shape and dimension in a series of shaping and finishing operations. Rolling of steel is one of the most important manufacturing processes for steel. It is usually the first step in the processing of steel after it is made and cast either in Ingot or continuous cast product in a steel melting shop.
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http://goo.gl/lUUh86
http://goo.gl/fSIHG7
http://goo.gl/4os7IE
http://www.entrepreneurindia.co/
Tags
Business guidance for steel rolling industry, Business Plan for a Startup Business, Business plan for steel rolling mill, Business start-up, Fusion welding processes, Great Opportunity for Startup, Hot rolled steel properties, Hot rolling mill process, Hot Rolling Mill, Hot Rolling mill, Hot Strip Mill, How is Steel Produced, How to Start a Steel Production Business, How to start a successful steel rolling business, How to start steel mill industry, How to Start Steel rolling Industry in India, How to start steel rolling mill, Indian Steel Industry, Industrial steel rolling mill, Modern steel making technology, Most Profitable Steel Business Ideas, New small scale ideas in Steel rolling industry, Opportunity Steel Rolling Mill, Plate Mill, Process & Applications, Process of steelmaking, Profitable small and cottage scale industries, Progress and Prospect of Rolling Technology, Project for startups, Rod and Bar Rolling, Rod and bar rolling, Rolling Metalworking, Rolling Mill for Steel Bars, Rolling process, Setting up and opening your steel rolling Business, Small scale Commercial steel rolling business, Small Scale Steel rolling Projects, Small Start-up Business Project, Start a Rolling Mill Industry, Start steel rolling mill in India, Starting a Steel Business, Starting a Steel rolling Business, Starting Steel Mini Mill, Start-up Business Plan for steel rolling, Startup Project for steel rolling business, Steel and hot rolling Business, Steel Based Profitable Projects, Steel Based Small Scale Industries Projects, Steel business plan, Steel hot rolling process, Steel Industry in India, Steel making and rolling, Steel making Projects, Steel making technology, Steel Making, Steel manufacturing process, Steel mill process, Steel mill, Steel production process, Steel rerolling mill feasibility start up, Steel rolling Industry in India, Steel rolling machine factory, Steel rolling mill industry demand, Steel rolling mill industry overview, Steel rolling mill industry, Steel rolling mill market forecast, Steel rolling mill market growth, Steel rolling mill market, Steel rolling mill size, Steel rolling mill starts production, Steel rolling mill, Steel Rolling Technology, Steelmaking, Steelmaking Processes, Types of rolling mills
Hot Rolling Mill Rollers of Steel Mills
Brief presentation on Materials Design and Selection
MME Dept
IIT Kharagpur
(1 mistake in slide 3: ICDP is "Indefinite Chilled Double Poured" Cast Iron)
Wire rod rolling mill
We are the professional manufacturer of wire rod rolling mill, we also provide complete design for your rolling mill workshop, not only turnkey project but also tailor-made service, and we provide all the parts for roughing rolling mill, intermediate rolling mill process, including pinch roll, all kinds of shears, laying head, all of these crucial parts work extremely precisely and reliably.
Hani is a well-experienced enterprise; we have more than 20 year experiences in manufacturing rolling mill machinery, our core technology team is very experienced and they are all well-known in this industry in China, with high technology and best service, after decades of researching and developing in this industry, we gain really high reputation, and customer satisfaction.
Hot Rolling And cold rolling process
This document summarizes the hot rolling and cold rolling processes used in mechanical engineering. It defines key terms like ingot, bloom, slab, and billet. It describes the main steps in hot rolling like heating, rough rolling, and finishing rolling. Advantages of hot rolling include reduced energy usage and improved material properties. Disadvantages are non-metallic inclusions and residual stresses. Cold rolling provides better dimensional control and surface finish but requires more force. Common applications of each process are also outlined.
Continuous Casting Steel
The document discusses continuous casting of steel and defects that can occur during the continuous casting process. It provides details on:
- Continuous casting involves delivering liquid metal into a water-cooled copper mold where the cast section is formed and then continuously withdrawn for further solidification. More than 50% of current steel production is continuously cast.
- Defects originate from factors like mold oscillation, mold flux, segregation, and phase transformations. Common defects include cracks, blowholes, inclusions, segregation, and pipes.
- Cracks are caused by mechanical and thermal stresses during casting and processing. Blowholes are caused by insufficient deoxidation or humidity. Inclusions arise from physical-chemical effects
Rolling Process.pdf
Rolling is a metal forming process where metal stock is passed through one or more pairs of rolls to reduce the thickness and increase the length. There are two main types:
1) Hot rolling is performed above the metal's recrystallization temperature for lower pressure and improved ductility. It produces coarse grains and no residual stresses.
2) Cold rolling is performed below the recrystallization temperature, requiring higher pressures but improving dimensions, finish and strength through residual stresses and elongated grains.
Rolling mills are classified by the number of rolls used, including two-high, three-high, four-high and cluster/sendzimir mills. Continuous mills use multiple stands to continuously roll sheet metal.
Steel melting shop (sms) - 2
This training report summarizes Santosh Kumar's summer training at the Rourkela Steel Plant from May to July 2014. It thanks the employees who supported and guided his training, particularly Mr. Panda and Mr. Patra. The report focused on gaining knowledge about the various processes used at the steel plant, especially in Steel Melting Shop-II.
Recommended
Steel Melting Shop (SMS)
Rourkela Steel Plant was the first in Asia to adopt the LD steelmaking process and the first in India to use external desulphurization. It is also the only plant where 100% of slabs are continuously cast. The steelmaking process in SMS involves charging hot metal, scrap, and fluxes into converters where oxygen is blown to remove impurities through oxidation, producing slag. Molten steel is tapped and further processed before continuous casting into slabs. Waste gases are captured and recycled while dust and slag are also recycled in the process.
Steel Making and Rolling (Metalworking): Process & Applications, Rod and Bar...
The steel industry has taken note of the continued growth in steel imports and a number of projects have been planned and are under implementation.In rolling mills, intermediate steel products are given their final shape and dimension in a series of shaping and finishing operations. Rolling of steel is one of the most important manufacturing processes for steel. It is usually the first step in the processing of steel after it is made and cast either in Ingot or continuous cast product in a steel melting shop.
See more
http://goo.gl/lUUh86
http://goo.gl/fSIHG7
http://goo.gl/4os7IE
http://www.entrepreneurindia.co/
Tags
Business guidance for steel rolling industry, Business Plan for a Startup Business, Business plan for steel rolling mill, Business start-up, Fusion welding processes, Great Opportunity for Startup, Hot rolled steel properties, Hot rolling mill process, Hot Rolling Mill, Hot Rolling mill, Hot Strip Mill, How is Steel Produced, How to Start a Steel Production Business, How to start a successful steel rolling business, How to start steel mill industry, How to Start Steel rolling Industry in India, How to start steel rolling mill, Indian Steel Industry, Industrial steel rolling mill, Modern steel making technology, Most Profitable Steel Business Ideas, New small scale ideas in Steel rolling industry, Opportunity Steel Rolling Mill, Plate Mill, Process & Applications, Process of steelmaking, Profitable small and cottage scale industries, Progress and Prospect of Rolling Technology, Project for startups, Rod and Bar Rolling, Rod and bar rolling, Rolling Metalworking, Rolling Mill for Steel Bars, Rolling process, Setting up and opening your steel rolling Business, Small scale Commercial steel rolling business, Small Scale Steel rolling Projects, Small Start-up Business Project, Start a Rolling Mill Industry, Start steel rolling mill in India, Starting a Steel Business, Starting a Steel rolling Business, Starting Steel Mini Mill, Start-up Business Plan for steel rolling, Startup Project for steel rolling business, Steel and hot rolling Business, Steel Based Profitable Projects, Steel Based Small Scale Industries Projects, Steel business plan, Steel hot rolling process, Steel Industry in India, Steel making and rolling, Steel making Projects, Steel making technology, Steel Making, Steel manufacturing process, Steel mill process, Steel mill, Steel production process, Steel rerolling mill feasibility start up, Steel rolling Industry in India, Steel rolling machine factory, Steel rolling mill industry demand, Steel rolling mill industry overview, Steel rolling mill industry, Steel rolling mill market forecast, Steel rolling mill market growth, Steel rolling mill market, Steel rolling mill size, Steel rolling mill starts production, Steel rolling mill, Steel Rolling Technology, Steelmaking, Steelmaking Processes, Types of rolling mills
Hot Rolling Mill Rollers of Steel Mills
Brief presentation on Materials Design and Selection
MME Dept
IIT Kharagpur
(1 mistake in slide 3: ICDP is "Indefinite Chilled Double Poured" Cast Iron)
Wire rod rolling mill
We are the professional manufacturer of wire rod rolling mill, we also provide complete design for your rolling mill workshop, not only turnkey project but also tailor-made service, and we provide all the parts for roughing rolling mill, intermediate rolling mill process, including pinch roll, all kinds of shears, laying head, all of these crucial parts work extremely precisely and reliably.
Hani is a well-experienced enterprise; we have more than 20 year experiences in manufacturing rolling mill machinery, our core technology team is very experienced and they are all well-known in this industry in China, with high technology and best service, after decades of researching and developing in this industry, we gain really high reputation, and customer satisfaction.
Hot Rolling And cold rolling process
This document summarizes the hot rolling and cold rolling processes used in mechanical engineering. It defines key terms like ingot, bloom, slab, and billet. It describes the main steps in hot rolling like heating, rough rolling, and finishing rolling. Advantages of hot rolling include reduced energy usage and improved material properties. Disadvantages are non-metallic inclusions and residual stresses. Cold rolling provides better dimensional control and surface finish but requires more force. Common applications of each process are also outlined.
Continuous Casting Steel
The document discusses continuous casting of steel and defects that can occur during the continuous casting process. It provides details on:
- Continuous casting involves delivering liquid metal into a water-cooled copper mold where the cast section is formed and then continuously withdrawn for further solidification. More than 50% of current steel production is continuously cast.
- Defects originate from factors like mold oscillation, mold flux, segregation, and phase transformations. Common defects include cracks, blowholes, inclusions, segregation, and pipes.
- Cracks are caused by mechanical and thermal stresses during casting and processing. Blowholes are caused by insufficient deoxidation or humidity. Inclusions arise from physical-chemical effects
Rolling Process.pdf
Rolling is a metal forming process where metal stock is passed through one or more pairs of rolls to reduce the thickness and increase the length. There are two main types:
1) Hot rolling is performed above the metal's recrystallization temperature for lower pressure and improved ductility. It produces coarse grains and no residual stresses.
2) Cold rolling is performed below the recrystallization temperature, requiring higher pressures but improving dimensions, finish and strength through residual stresses and elongated grains.
Rolling mills are classified by the number of rolls used, including two-high, three-high, four-high and cluster/sendzimir mills. Continuous mills use multiple stands to continuously roll sheet metal.
Steel melting shop (sms) - 2
This training report summarizes Santosh Kumar's summer training at the Rourkela Steel Plant from May to July 2014. It thanks the employees who supported and guided his training, particularly Mr. Panda and Mr. Patra. The report focused on gaining knowledge about the various processes used at the steel plant, especially in Steel Melting Shop-II.
Industrial Training Report on Direct Reduced Iron Plant(DRI)
Industrial Training Report on Direct Reduced Iron Plant of Jindal Steel & Power Limited Raigarh Chhattisgarh
Rolling slides
The document discusses the rolling process for metal forming. Rolling is defined as passing metal between rolls to plastically deform it. There are two main types: hot rolling, which is used for initial breakdown of ingots, and cold rolling, which provides closer dimensional tolerances and better surface finishes. Rolling can produce products like plate, sheet, strip, bars, and pipes. The rolling process involves passing metal through sets of rolls under high compressive forces.
Continious casting of steel
This document discusses the process of continuous casting of steel. It begins with an introduction and overview of the process. It then describes the three main types of continuous casting machines - vertical mould, vertical mould with bending, and curved mould. It provides details on the equipment, materials, process steps, defects, and modern developments of continuous casting. Some advantages are improved yield, quality, productivity and cost efficiency compared to ingot casting. Disadvantages include the need for a large facility and efficient cooling.
03 rolling of metals
This document provides information on various metal rolling processes including hot rolling, cold rolling, and other specialized rolling techniques. It discusses the basic components and setup of rolling mills. Key rolling processes are defined, such as continuous rolling, shaped rolling, and ring rolling. The document also examines the differences between hot and cold rolling, and provides examples of typical rolling mill operations. Mathematical approaches for calculating rolling loads are introduced.
45920321 defects-in-hot-rolled-products1
This document discusses various types of defects that can occur in hot rolled steel products, including rolled-in scale, slivers, blisters, edge cracks, folds, laminations, and more. For each defect, it provides details on appearance, possible causes related to production issues, and recommendations for process controls to remedy or prevent the defect. Specific examples with photos are also included at the end to illustrate defects observed in real hot rolled products.
Rolling Process
The document summarizes the rolling process. It defines rolling as plastically deforming metal by passing it between rolls. Rolling provides close dimensional control and high production. There are two main types: hot rolling and cold rolling. The document describes various rolling terminologies, mill products, defects, and different rolling processes like hot rolling, cold rolling, shaped rolling, and thread rolling. It also discusses factors like angle of contact, forces involved, and how to control flatness.
Steel Making: Ingot casting defects
1) The document discusses various defects that can occur during steel ingot solidification such as pipe, columnar structure, blow holes, and segregation.
2) It provides remedies for preventing these defects, such as using a hot top feeder head to avoid pipe formation and soaking ingots to minimize segregation.
3) The document also covers the mechanisms of ingot solidification, describing how killed, rimmed, and semi-killed steels solidify into chill, columnar, and equiaxed zones within the ingot.
R O L L I N G
This document discusses rolling processes used to shape metals. It describes rolling as a bulk deformation process that reduces thickness or changes cross-section of a workpiece using compressive forces from rotating rolls. Hot rolling involves heating metal above its recrystallization temperature before rolling, allowing larger deformation and grain refinement. Cold rolling increases strength but reduces ductility, so heat treatment is often required after. The document provides details on advantages and limitations of both hot and cold rolling processes.
Rolling Process
Rolling is a metal forming process that uses rolls to reduce the thickness and increase the length of metal workpieces. It can be done hot or cold. Hot rolling occurs above the metal's recrystallization temperature and results in a more uniform structure, while cold rolling occurs at room temperature and produces closer tolerances and a better surface finish. The document defines various products of rolling like billets, blooms, slabs, plates, sheets and strips based on their dimensions. It also describes different types of rolling processes like continuous, transverse, shape, ring and thread rolling as well as the types of mills used like two-high, three-high and four-high mills.
Introduction to steel making processes
1) The document discusses different steelmaking processes including the Bessemer converter process, open hearth furnace process, and basic oxygen converter process.
2) The Bessemer converter process was the first major steelmaking technique but has been replaced by basic oxygen converters. It used hot metal and an oxygen blast to oxidize impurities.
3) The basic oxygen converter process is now the dominant steelmaking method. It uses a pear-shaped vessel, oxygen lancing, and produces steel in 40-60 minutes by oxidizing impurities into slag.
Steel melting shop
The document provides information about the steel melting shop (SMS) at Jindal Steel and Power Limited (JSPL) Raigarh plant. The key points are:
1. The SMS has a capacity of 3.2 million tonnes per year and includes 3 electric arc furnaces, a ladle refining furnace, and vacuum degassing units.
2. The melting process involves charging raw materials into the electric arc furnaces and applying electrical energy to melt them. Secondary refining then occurs in the ladle refining furnace and vacuum degassing units.
3. Final products are continuously cast into blooms, billets, rounds and other sections using various casters like the
Ferrous alloys
This document discusses various ferrous materials including steels and cast irons. It describes the classification, properties and applications of different types of steels such as plain-carbon steels, mild steel, high-carbon steel, alloy steels, tool steels and stainless steels. It also discusses the effects of common alloying elements added to steel like manganese, chromium, nickel, molybdenum, and titanium.
End splitting during long products rolling billet quality of rolling process
End splitting occurs because the material being rolled has not enough ductility to withstand the stress to which it is submitted. This may happens for different reasons. Coarse cracks in the billet end, like central or diagonal cracks, weakens the end, particularly when the plane where are located coincides in part with the symmetry plane between rolls. Hot ductility of steel depends on the one hand of their intrinsic features, and on the other hand, on the temperature at which they suffer the stress, and its speed.
It is important to roll the steel within the range of higher ductility at a given deformation speed. This is more critical for steels with inherent low ductility as those containing high sulfur.
The role of MnS stringers is also clear; having S controlled at the lower level of the specification is favorable. Nevertheless it is worth to mention that if caster condition is proper and excessive thermal/mechanical stresses do not arise, very high Mn/S ratio is not necessary.
Bar ends loss temperature faster. Another factor is roll cooling, it has to be correctly oriented, not excessive and keeping the position along the processing time.
In other factors experimental and modeling results are apparently controversial. There is coincidence in the fact that more friction between bar and rolls promotes splitting, but not in factors like roll diameter and reduction.
On the basis of pilot rolling results, plane, box-box, square to round and oval to round passes are favorable to avoid splitting, while oval to square promotes splitting.
Continuous casting.PPT
Continuous casting was conceived in the 1860s and has since led to major improvements in efficiency, productivity, and cost reductions for metal production. The process involves cleaning and equalizing molten metal in a ladle before pouring it into a tundish where impurities are removed, then the metal travels through water cooled copper molds to begin solidifying as it moves downward along supported rollers. The key advantages are 100% casting yield due to no waste metal, an automatic and consistent process, and reproducible mechanical properties.
bhushan steel plant
The document provides an overview of the process flow for Khopoli Steel Plant, including HR slitting, pickling, and cold rolling mill (CRM). The HR slitting process involves cutting wider hot rolled coils into narrower coils for uniform width and to remove damaged edges. Pickling uses HCL acid to remove impurities from ferrous metals. The CRM uses 6- and 4- high mills to cold roll pickled strips, reducing thickness by up to 90% to strengthen the metal through strain hardening and improve surface finish and tolerances.
Rolling process presentation
The document discusses the rolling process used in mechanical engineering. It begins with introductions and terminology for rolling. It then covers classifications of rolling mills like two high, three high, and four high mills. The types of rolling processes discussed include conventional, transverse, shaped, ring, powder, and thread rolling. Hot and cold rolling are also covered. Key aspects of the rolling process like roll bite condition and common rolling defects are defined. The document concludes with potential problems in rolling and sample multiple choice questions.
Steel Making: Ingot casting
Molten steel is tapped into a ladle and alloying elements are added before being cast into molds. Steel ingots can have square, round, or polygon cross-sections depending on their intended use - squares for rolling, rectangles for flat products, and rounds for tubes. Ingot casting molds are made of cast iron and come in two types - wide end up or narrow end up. As the steel solidifies in the mold, it forms three distinct zones - a thin chill zone against the mold walls, columnar zones of elongated crystals perpendicular to the walls, and an inner equiaxed zone of larger isotropic crystals.
Sand casting of metals - Gating system for sand casting mould
Topics covered: Sand Casting of Metals
Design and manufacture of gating system
Pouring basin
Sprue
Runners
In-gates
Riser
Welding of Titanium and Alloys
Welding of Titanium and AlloysSenior Research Fellow, School of Technology, Pandit Deendayal Petroleum University
PPT Includes physical Metallurgy for Titanium and its alloys, Weld ability of them and two welding processes : GTAW and EBW. PPT also describes the Problems with the Welding of Titanium and alloys.LD process
The LD process, also called the basic oxygen process, is a steelmaking method where scrap metal and iron ore are refined in an LD vessel. Key steps include charging materials, blowing oxygen through a lance at high pressure and temperature to burn off impurities, sampling the molten steel, and tapping purified steel into a ladle. The process is much faster than open hearth and produces steel with low sulfur and phosphorus using ordinary raw materials without external heat or fuel. However, it is limited in scrap usage and can result in steel wastage from splashing.
Rolling processes
This document discusses various metal forming rolling processes. It defines rolling as plastically deforming metal by passing it between rolls. There are different types of rolling processes including transverse, shaped, skew, ring, thread, tube, powder, and continuous casting and hot rolling. It also describes the classification and purposes of processes like transverse, shaped, skew, ring, thread, and tube rolling. Finally, it discusses sheet rolling processes including hot and cold rolling.
hot and cold rolled sections -bms
The document discusses hot rolled and cold rolled steel sections. Hot rolled sections involve shaping steel above its recrystallization temperature using large rollers to deform hot metal slabs. This allows large sizes but with less dimensional control. Cold rolled sections further process hot rolled steel below the recrystallization temperature through annealing and tempering rolls. This increases strength, hardness and dimensional accuracy but requires more rolling cycles. The document provides examples of sections produced by both methods like channels, angles and bars, and discusses their advantages and uses.
More Related Content
What's hot
Industrial Training Report on Direct Reduced Iron Plant(DRI)
Industrial Training Report on Direct Reduced Iron Plant of Jindal Steel & Power Limited Raigarh Chhattisgarh
Rolling slides
The document discusses the rolling process for metal forming. Rolling is defined as passing metal between rolls to plastically deform it. There are two main types: hot rolling, which is used for initial breakdown of ingots, and cold rolling, which provides closer dimensional tolerances and better surface finishes. Rolling can produce products like plate, sheet, strip, bars, and pipes. The rolling process involves passing metal through sets of rolls under high compressive forces.
Continious casting of steel
This document discusses the process of continuous casting of steel. It begins with an introduction and overview of the process. It then describes the three main types of continuous casting machines - vertical mould, vertical mould with bending, and curved mould. It provides details on the equipment, materials, process steps, defects, and modern developments of continuous casting. Some advantages are improved yield, quality, productivity and cost efficiency compared to ingot casting. Disadvantages include the need for a large facility and efficient cooling.
03 rolling of metals
This document provides information on various metal rolling processes including hot rolling, cold rolling, and other specialized rolling techniques. It discusses the basic components and setup of rolling mills. Key rolling processes are defined, such as continuous rolling, shaped rolling, and ring rolling. The document also examines the differences between hot and cold rolling, and provides examples of typical rolling mill operations. Mathematical approaches for calculating rolling loads are introduced.
45920321 defects-in-hot-rolled-products1
This document discusses various types of defects that can occur in hot rolled steel products, including rolled-in scale, slivers, blisters, edge cracks, folds, laminations, and more. For each defect, it provides details on appearance, possible causes related to production issues, and recommendations for process controls to remedy or prevent the defect. Specific examples with photos are also included at the end to illustrate defects observed in real hot rolled products.
Rolling Process
The document summarizes the rolling process. It defines rolling as plastically deforming metal by passing it between rolls. Rolling provides close dimensional control and high production. There are two main types: hot rolling and cold rolling. The document describes various rolling terminologies, mill products, defects, and different rolling processes like hot rolling, cold rolling, shaped rolling, and thread rolling. It also discusses factors like angle of contact, forces involved, and how to control flatness.
Steel Making: Ingot casting defects
1) The document discusses various defects that can occur during steel ingot solidification such as pipe, columnar structure, blow holes, and segregation.
2) It provides remedies for preventing these defects, such as using a hot top feeder head to avoid pipe formation and soaking ingots to minimize segregation.
3) The document also covers the mechanisms of ingot solidification, describing how killed, rimmed, and semi-killed steels solidify into chill, columnar, and equiaxed zones within the ingot.
R O L L I N G
This document discusses rolling processes used to shape metals. It describes rolling as a bulk deformation process that reduces thickness or changes cross-section of a workpiece using compressive forces from rotating rolls. Hot rolling involves heating metal above its recrystallization temperature before rolling, allowing larger deformation and grain refinement. Cold rolling increases strength but reduces ductility, so heat treatment is often required after. The document provides details on advantages and limitations of both hot and cold rolling processes.
Rolling Process
Rolling is a metal forming process that uses rolls to reduce the thickness and increase the length of metal workpieces. It can be done hot or cold. Hot rolling occurs above the metal's recrystallization temperature and results in a more uniform structure, while cold rolling occurs at room temperature and produces closer tolerances and a better surface finish. The document defines various products of rolling like billets, blooms, slabs, plates, sheets and strips based on their dimensions. It also describes different types of rolling processes like continuous, transverse, shape, ring and thread rolling as well as the types of mills used like two-high, three-high and four-high mills.
Introduction to steel making processes
1) The document discusses different steelmaking processes including the Bessemer converter process, open hearth furnace process, and basic oxygen converter process.
2) The Bessemer converter process was the first major steelmaking technique but has been replaced by basic oxygen converters. It used hot metal and an oxygen blast to oxidize impurities.
3) The basic oxygen converter process is now the dominant steelmaking method. It uses a pear-shaped vessel, oxygen lancing, and produces steel in 40-60 minutes by oxidizing impurities into slag.
Steel melting shop
The document provides information about the steel melting shop (SMS) at Jindal Steel and Power Limited (JSPL) Raigarh plant. The key points are:
1. The SMS has a capacity of 3.2 million tonnes per year and includes 3 electric arc furnaces, a ladle refining furnace, and vacuum degassing units.
2. The melting process involves charging raw materials into the electric arc furnaces and applying electrical energy to melt them. Secondary refining then occurs in the ladle refining furnace and vacuum degassing units.
3. Final products are continuously cast into blooms, billets, rounds and other sections using various casters like the
Ferrous alloys
This document discusses various ferrous materials including steels and cast irons. It describes the classification, properties and applications of different types of steels such as plain-carbon steels, mild steel, high-carbon steel, alloy steels, tool steels and stainless steels. It also discusses the effects of common alloying elements added to steel like manganese, chromium, nickel, molybdenum, and titanium.
End splitting during long products rolling billet quality of rolling process
End splitting occurs because the material being rolled has not enough ductility to withstand the stress to which it is submitted. This may happens for different reasons. Coarse cracks in the billet end, like central or diagonal cracks, weakens the end, particularly when the plane where are located coincides in part with the symmetry plane between rolls. Hot ductility of steel depends on the one hand of their intrinsic features, and on the other hand, on the temperature at which they suffer the stress, and its speed.
It is important to roll the steel within the range of higher ductility at a given deformation speed. This is more critical for steels with inherent low ductility as those containing high sulfur.
The role of MnS stringers is also clear; having S controlled at the lower level of the specification is favorable. Nevertheless it is worth to mention that if caster condition is proper and excessive thermal/mechanical stresses do not arise, very high Mn/S ratio is not necessary.
Bar ends loss temperature faster. Another factor is roll cooling, it has to be correctly oriented, not excessive and keeping the position along the processing time.
In other factors experimental and modeling results are apparently controversial. There is coincidence in the fact that more friction between bar and rolls promotes splitting, but not in factors like roll diameter and reduction.
On the basis of pilot rolling results, plane, box-box, square to round and oval to round passes are favorable to avoid splitting, while oval to square promotes splitting.
Continuous casting.PPT
Continuous casting was conceived in the 1860s and has since led to major improvements in efficiency, productivity, and cost reductions for metal production. The process involves cleaning and equalizing molten metal in a ladle before pouring it into a tundish where impurities are removed, then the metal travels through water cooled copper molds to begin solidifying as it moves downward along supported rollers. The key advantages are 100% casting yield due to no waste metal, an automatic and consistent process, and reproducible mechanical properties.
bhushan steel plant
The document provides an overview of the process flow for Khopoli Steel Plant, including HR slitting, pickling, and cold rolling mill (CRM). The HR slitting process involves cutting wider hot rolled coils into narrower coils for uniform width and to remove damaged edges. Pickling uses HCL acid to remove impurities from ferrous metals. The CRM uses 6- and 4- high mills to cold roll pickled strips, reducing thickness by up to 90% to strengthen the metal through strain hardening and improve surface finish and tolerances.
Rolling process presentation
The document discusses the rolling process used in mechanical engineering. It begins with introductions and terminology for rolling. It then covers classifications of rolling mills like two high, three high, and four high mills. The types of rolling processes discussed include conventional, transverse, shaped, ring, powder, and thread rolling. Hot and cold rolling are also covered. Key aspects of the rolling process like roll bite condition and common rolling defects are defined. The document concludes with potential problems in rolling and sample multiple choice questions.
Steel Making: Ingot casting
Molten steel is tapped into a ladle and alloying elements are added before being cast into molds. Steel ingots can have square, round, or polygon cross-sections depending on their intended use - squares for rolling, rectangles for flat products, and rounds for tubes. Ingot casting molds are made of cast iron and come in two types - wide end up or narrow end up. As the steel solidifies in the mold, it forms three distinct zones - a thin chill zone against the mold walls, columnar zones of elongated crystals perpendicular to the walls, and an inner equiaxed zone of larger isotropic crystals.
Sand casting of metals - Gating system for sand casting mould
Topics covered: Sand Casting of Metals
Design and manufacture of gating system
Pouring basin
Sprue
Runners
In-gates
Riser
Welding of Titanium and Alloys
Welding of Titanium and AlloysSenior Research Fellow, School of Technology, Pandit Deendayal Petroleum University
PPT Includes physical Metallurgy for Titanium and its alloys, Weld ability of them and two welding processes : GTAW and EBW. PPT also describes the Problems with the Welding of Titanium and alloys.LD process
The LD process, also called the basic oxygen process, is a steelmaking method where scrap metal and iron ore are refined in an LD vessel. Key steps include charging materials, blowing oxygen through a lance at high pressure and temperature to burn off impurities, sampling the molten steel, and tapping purified steel into a ladle. The process is much faster than open hearth and produces steel with low sulfur and phosphorus using ordinary raw materials without external heat or fuel. However, it is limited in scrap usage and can result in steel wastage from splashing.
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Industrial Training Report on Direct Reduced Iron Plant(DRI)
Industrial Training Report on Direct Reduced Iron Plant(DRI)
End splitting during long products rolling billet quality of rolling process
End splitting during long products rolling billet quality of rolling process
Sand casting of metals - Gating system for sand casting mould
Sand casting of metals - Gating system for sand casting mould
Similar to Hot rolling mills
Rolling processes
This document discusses various metal forming rolling processes. It defines rolling as plastically deforming metal by passing it between rolls. There are different types of rolling processes including transverse, shaped, skew, ring, thread, tube, powder, and continuous casting and hot rolling. It also describes the classification and purposes of processes like transverse, shaped, skew, ring, thread, and tube rolling. Finally, it discusses sheet rolling processes including hot and cold rolling.
hot and cold rolled sections -bms
The document discusses hot rolled and cold rolled steel sections. Hot rolled sections involve shaping steel above its recrystallization temperature using large rollers to deform hot metal slabs. This allows large sizes but with less dimensional control. Cold rolled sections further process hot rolled steel below the recrystallization temperature through annealing and tempering rolls. This increases strength, hardness and dimensional accuracy but requires more rolling cycles. The document provides examples of sections produced by both methods like channels, angles and bars, and discusses their advantages and uses.
Module5steels 141120085043-conversion-gate01 2
This document discusses different types of alloy and special steels. It begins by outlining general categories including carbon and alloy steels, stainless steels, tool and die steels, and cast steels. It then describes the effects of various alloying elements on steel properties. The remainder of the document provides more detailed information about specific steel types, including their compositions, properties, and applications.
Manufacturing Processes
Principles and applications of the following processes: Forging
2.Principles and applications of the following processes: Rolling,
3.Extrusion, Wire drawing, and Spinning,
4.Powder metallurgy – Principal steps involved
5.Advantages, Disadvantages, and limitations of powder metallurgy
ALLOY STEEL PROPERTIES AND APPLICATIONS.pptx
Alloy steel is a type of steel made by adding other elements like chromium, nickel, and molybdenum to iron and carbon. This improves properties over plain carbon steel like increased strength, corrosion resistance, and hardenability. Alloy steel is made through a process of collecting raw materials, converting iron ore to pig iron, refining, alloy element addition, casting, and further processing. Its wide range of properties allow alloy steel to be used in construction, transportation, manufacturing, energy applications, and some consumer goods wherever high strength, wear or corrosion resistance, or heat tolerance is required.
Metal rolling
Metal rolling is one of the most important metal forming processes. It involves plastically deforming metal between two rolls to reduce thickness and shape the metal. Most metals are hot rolled into basic shapes like blooms and slabs for further manufacturing. The rolls spin in opposite directions to feed and form the metal through compression. Friction must be controlled through lubrication. Rolling refines grain structure and spreads the width of the metal. Different roll materials, sizes, and mill configurations are used depending on the application. Surface defects can occur if scale or dirt are present while internal defects result from improper material distribution.
Machinability of tool steels
This document discusses the machinability of various tool steels. It provides information on different types of tool steels classified by the AISI and how their machinability is influenced by factors like composition, microstructure, and heat treatment. Machining operations like turning, drilling, milling, and face milling of tool steels are also covered, outlining tool materials, speeds/feeds, cutting fluids, and heat treatments used for optimal machinability. Tool steels require special machining techniques due to their high hardness, carbon content, and alloying elements.
Swivel base vice Production Manufacturing
The document discusses swivel base vices. It describes the components of a bench vise including the base, fixed jaw, movable jaw, and screw. It then focuses on swivel base vices, explaining that the base can rotate, allowing the workpiece to be positioned at different angles. The document discusses materials used like cast iron and steel. It also outlines the manufacturing process which typically involves casting, and sometimes forging, as well as machining operations after casting.
Burak gundogdu
Tool steels are specialized alloy steels designed for tooling applications that require high strength and hardness. There are several types of tool steel including shock-resisting, cold-worked, hot-worked, high-speed, and water-hardened steels, each suited for different applications like cutting, forming, or stamping. Cast irons like grey, white, ductile, and malleable iron are also discussed, outlining their compositions and common uses.
Metal spinning
Metal spinning is a sheet metal forming process that uses rollers to form axisymmetric parts over a rotating mandrel. There are three main types: conventional spinning, shear spinning, and tube spinning. Spinning can be done hot or cold and involves placing a metal blank against a mandrel and using tools to deform the material into shape as it rotates. Applications include automotive parts, containers, and more. Key advantages are low tooling costs, design flexibility, and little material waste.
Steel Hot Rolling, Hot Rolling of Steel, Metal Rolling, Metal Forming Process...
Steel Hot Rolling, Hot Rolling of Steel, Metal Rolling, Metal Forming Process, Steel Rolling Process, Metalworking, Flat Rolling Fundamentals, Physical Metallurgy, Hot Rolled Steel, Rolling Mills (Pre-Treatment of Hot Metal, Heat Treatments for Hot-Rolled Products, Steelmaking Refractories, Refining of Stainless Steels, Steel Heating for Hot Rolling, Oxygen Steelmaking Processes)
Rolling of steel is one of the most important manufacturing processes for steel. It is usually the first step in the processing of steel after it is made and cast either in Ingot or continuous cast product in a steel melting shop. Hot rolling is used mainly to produce sheet metal or simple cross sections, such as rail tracks.
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Steel Hot Rolling, Hot Rolling of Steel, Metal Rolling, Metal Forming Process, Steel Rolling Process, Metalworking, Flat Rolling Fundamentals, Physical Metallurgy, Hot Rolled Steel, Rolling Mills, Pre-Treatment of Hot Metal, Heat Treatments for Hot-Rolled Products, Steelmaking Refractories, Refining of Stainless Steels, Steel Heating for Hot Rolling, Oxygen Steelmaking Processes, Best small and cottage scale industries, Business guidance for steel rolling industry, Business Plan for a Startup Business, Business plan for steel rolling mill, Business start-up, Fusion welding processes, Great Opportunity for Startup, Hot rolled steel properties, Hot rolling mill process, Hot Rolling Mill, Hot Rolling mill, Hot Strip Mill, How is Steel Produced, How to Start a Steel Production Business, How to start a successful steel rolling business, How to start steel mill industry, How to Start Steel rolling Industry in India, How to start steel rolling mill, Indian Steel Industry, Industrial steel rolling mill, Modern small and cottage scale industries, Modern steel making technology, Most Profitable Steel Business Ideas, New small scale ideas in Steel rolling industry, Opportunity Steel Rolling Mill, Plate Mill, Process & Applications, Process of steelmaking, Profitable small and cottage scale industries, Progress and Prospect of Rolling Technology, Project for startups, Rod and Bar Rolling, Rod and bar rolling, Rolling Metalworking, Rolling Mill for Steel Bars, Rolling process, Setting up and opening your steel rolling Business, Small scale Commercial steel rolling business, Small Scale Steel rolling Projects, Small Start-up Business Project, Start a Rolling Mill Industry, Start steel rolling mill in India, Starting a Steel Business, Starting a Steel rolling Business, Starting Steel Mini Mill, Start-up Business Plan for steel rolling, Startup Project for steel rolling business
Stainless steel
Stainless steel is an alloy made of iron, chromium, and other elements that gives it excellent corrosion resistance. There are five main types - ferritic, austenitic, martensitic, duplex, and precipitation hardening - with varying compositions and properties like strength and magnetic response. Stainless steel is manufactured through processes like melting, casting, hot and cold rolling, annealing, pickling or electropolishing to remove scale, and various forming and finishing steps before being used in a wide range of applications.
Hot & cold rolled steel farhan
The document discusses different types of steel sections used in structural steelwork, including hot-rolled steel beams, columns, tees, channels, and angles. It provides details on the production process for universal beams and columns, which are produced in standard sizes. The document also describes the differences between hot-rolled steel and cold-rolled steel. Hot-rolled steel is produced at temperatures above the metal's recrystallization point, while cold-rolled steel is produced at lower temperatures, below the recrystallization point. Cold-rolled steel has a smoother appearance and more accurate dimensions than hot-rolled steel.
Heat treatment processes
The document discusses various heat treatment processes used to change the properties and performance of metals. It describes the main stages of heat treatment as heating, soaking, and cooling. Common heat treatment processes include annealing to soften metals, normalizing to refine grains and increase strength, hardening to increase hardness and strength, and tempering to increase toughness after hardening. Specific methods like carburizing, cyaniding, nitriding, and flame hardening are used to case harden metal surfaces. Industries like aerospace, automotive, and defense commonly use heat treating.
Forging
This document provides an overview of forging processes and principles. It discusses various forging operations like smith forging, hammer forging, press forging, and roll forging. It also covers forging classification based on temperature (hot, warm, cold forging) and die arrangement (open, closed die forging). Common forging defects and applications in industries like automotive and aerospace are summarized.
Rolling,Rolling mills,Rolling processes &Rolling Applications by polayya chin...
The document discusses rolling as a metal forming process. It describes rolling as a process where metal is passed between circular cylinders to change its shape through plastic deformation. Both hot and cold rolling processes are used, with hot rolling used for more drastic shape changes. Different types of rolling mills are covered, including two-high, three-high, four-high, cluster, and planetary mills. The advantages and disadvantages of rolling and its applications in producing items like tubes, rods, gears, and construction materials are also summarized.
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Steel Hot Rolling, Hot Rolling of Steel, Metal Rolling, Metal Forming Process...
Steel Hot Rolling, Hot Rolling of Steel, Metal Rolling, Metal Forming Process...
Rolling,Rolling mills,Rolling processes &Rolling Applications by polayya chin...
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Hot rolling mills
- 1. What is the Hot Rolling Mill? This mill is suitable for various processes like roll bending, foil rolling, ring rolling and flat rolling.The Hot Rolling Mills for Plates, Slabs & Strip that is utilized for shaping large pieces of metal into plates, strips and slabs. This mill is suitable for various processes like roll bending, foil rolling, ring rolling and flat rolling. Types of Hot Rolling Mills 1. 2 Hi Hot Rolling Mills 2. 5 Hi Hot Rolling Millls 3. Stainless Steel 5 Hi Hot Rolling Mill 4. Hot Rolling Mill for Mild Steel Other Features of Hot Rolling Mills: • Compact and rugged • Upkeep costs are low • Dynamically balanced base • Variable speed drive • Corrosion resistance • Abrasion resistance • Energy efficiency • Longer operational life Advantages of Hot Rolling Mills: • Less force • Greater degree of deformation • Improved structure and properties of the metal • No Hardening • Equipped with all safety features. • Are easy to handle and operate.
- 2. • Durable and economical. • Are made from highest grade metal. • Highly efficient and can operate for long. What are Applications of Hot Rolling Mills? Hot rolling mills are used mainly to produce sheet metal or simple cross sections such as rail road bars from billets. Hot rolling mill is an important part of a rolling mill machinery which is used for various metal working process. To buy or for any query about hot rolling mills and machines feel free to contact below listed manufacturers of hot rolling mills who are trusted and established manufacturers rolling mills.