Strategic Alliance —Case Study of Lenovo and IBM

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Description

• dissertation
• leçon - matière potentielle : from the strategic alliance

Strategic Alliance —Case Study of Lenovo and IBM By Lili Jiang Dissertation submitted to the University of Nottingham Business School, in partial fulfillment of the requirements for the degree of Master of Science in International Business September 2007

• theoretical foundation of strategic alliances
• alliance work
• multinational companies as a strategy
• comparison between analysis from secondary data
• necessity for companies
• strategic alliance……………………………………
• development of insights
• secondary data
• research

Sujets

• Dissertation
• Strategic alliance
• Lenovo
• People's Republic of China
• Strategy
• Analysis

Informations

• Publié par: ontui
• Nombre de lectures: 96
• Langue: English

Extrait

TEMPUS Intermet CD JEP 25047 Subject name:TECHNOLOGY OF METALLURGICAL PROCESSES ECTS credits 7 Specific learning objectives: -Knowledge and understanding of metallurgical technologies (agglomeration, iron & steelmaking, secondary treatment, casting of steel) -Competency in optimizing of operation parameters in order to reach high quality and efficiency of production Acquired competences: The programme is focused to equip students with knowledge and skills necessary to: -communicate their conclusions related to different issues of metallurgical technologies, the knowledge and rationale underpinning these to specialist and non-specialist audiences clearly and unambiguously; -have the ability to integrate knowledge and handle complexity of various metallurgical technologies, and formulate judgments on solution of these problems even with incomplete or limited information; -make engineering calculations related to heat/mass balances and operation parameters. Part A. Agglomeration Technologies (1.5 ECTS) Lecture course (22 hours) №of category\subject and its content  Name Hours 1 Introduction. General foundations of mining and machining of minerals. 2 Origin of iron ore, useful and harmful admixtures, gangue composition. Kinds of iron ore resources. Iron ore deposits in Ukraine. Non-metallic materials. 2 Evaluation of iron ore and fluxes quality. Substitute of iron ore and 2 fluxes. Preparation of ores. Cost-effectiveness of ore preparation. Stages of ore preparation. Coarse, medium and fine crushing of ores and fluxes. 3 Preparation of ores for benefication. Grinding of iron ores and fluxes. 2 Classification of crushed material. Energy consumption for crushing and grinding. 4 Ore blending. Roasting. Theory of mineral dressing. Technology and 2 equipment for benefication of iron and manganese ores. Methods of gravity benefication, technology and equipment. Streaming and sorting. Methods of flotation benefication. Electric separation. Technological flow-sheet of benefication shops, operation parameters. Dehydration of ore concentrates. Industrial gas cleaning. 5 Pelletizing. Binder and gluing additives. Technology and equipment for 2 briquetting. Sintering, concept of process and its basic operation parameters. Processes of induration, parameters, quality of pellets. 6 Sintering shop flow-sheet. Operations of unloading, storage and blending 2 of raw materials on sintering plants. Management and optimisation of  1

TEMPUS Intermet CD JEP 25047 preparatory operations. Technology of burden materials preparation. Production of lime. New technologies for synthetic fluxing and binder compositions production. Storage and dosing of burden with given basicity for production of sinter and pellets. Dosing schemes, control algorithms, types of automation control systems. 7 Burden mixing, wetting and balling. Conditions of bulk solids flow in 2 facilities for balling and its wetting. Control and management systems of balling process. Technology for loading of protection layer and burden on sinter plant. Optimisation of fuel rich layer. Initial sintering period, outside heating of sintered layer, fuel ignition. Gas-temperature hearth operation regime, control of conditions and optimisation, combined heating. 8 Technology of sintering process and sintering plant control. Optimal 2 control systems and algorithmization of sintering process. 9 Gas-suction system of sintering and induration machines. Operation of 2 exhauster and gas cleaning facilities. Process flow-sheet for pellets production factories. Technology of burden preparation and green pellets production in various types of balling apparatus. Control and optimisation of balling. 10 Pellets induration technology, temperature-time and gas-dynamic 2 operating mode of technological zones of induration machines and related systems. Control of pellets induration process and its optimisation on conveyer machines and rotary kiln. Influence of processing factors on induration parameters and pellets induration technology. Methods of processes intensification. 11 Methods of iron-ore sintering quality control. Technical and economic 2 indices of sintering plants and pelletising plants. Practical training (6 hours) № Name of training Hours 1 Calculation of fluxing capacity of fluxes and theirs substitutes. 2 2 Calculations of sintering and pelletising burden. 2 3 Calculations of gas-temperature operation parameters for sintering 2 machine ignition furnace Laboratory training (8 hours) №of work  Name Hours 1 Materials crushing and screening. 2 2 Determination of specific weight, volume weight, porosity and bulk 2 density of burden material. 3 Influence of burden composition and operation parameters on sintering 4 process indexes and sinter quality.

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TEMPUS Intermet CD JEP 25047 Part B. Ironmaking Technologies (2 ECTS) Lecture course (34 hours) № Name of section/theme and its content Hours 1 Introduction. Role of blast-furnace technology in metallurgical cycle. 2 Modern scheme and organization of blast-furnace production. 2 Gas-dynamic conditions of blast-furnace smelting. Overall 4 characteristics of burden material and gas countercurrent. Mechanics of burden descending in furnaces. Burden descending rate. Forces effecting material column in furnace. Conditions to achieve stable furnace run. Burden move in the blast-furnace hearth. Factors influencing gas permeability of blast-furnace burden column. Control of burden and gas distribution by the blast-furnace radius and circle. 3 Control of burden on the blast-furnace top. Peculiarities of burden 4 charging into furnace with bell apparatus. Factors influencing burden distribution along top radius by coke rate burden sizing. Control of burden radial distribution by charging level change, charge mass, charging system, application of additional control elements. Peculiarities of burden distribution in the furnace in case of bell-less top. Burden allocation control. Influence of different factors on temperature allocation character in burden column capacity in cycle of top. 4 Blast furnace smelting regime optimisation. Resumptive characteristics 4 of furnace smelting blast regime (tuyere gas theoretical temperature, generated per minute tuyere gas volume, blast flow and gas flow in hearth energy). Calculated control of these parameters and their role in blast-furnace process organisation. Blast parameters optimisation. 5 Influence of iron-ore burden and coke on blast-furnace work parameters. 4 Possibilities of blast-furnace smelting improvement due to iron content increasing in fluxed burden, using of self-fluxing and monobasic burden, mixing of fines content in sinter, iron-ore metal content and parameters stabilisation. Influence of coke quality characteristics on blast-furnace work. Efficient technological methods of blast-furnace process control under iron-ore materials quality and coke changing. 6 Evaluation of blast-furnace gas-dynamic conditions according to 4 measurement inspection machine parameters and their additional characteristics. Technological deciphering of indices recording: pressure and hot blast expenditure; top smoke pressure and temperature; periphery gas temperature; radial gas temperature and content; gas static pressure general and partial overfalls according to blast-furnace height; burden level in furnace. 7 Disorder of gas-dynamic regime in blast-furnace smelting, their 4 prevention and liquidation. General indices run blast-furnace disorder. Furnace periphery run. Central run. Channeling. Burden level warp and furnace side driving. Furnace stiff movement. Hearth blocking. Skull

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TEMPUS Intermet CD JEP 25047

formation. 8 Peculiarities of blast-furnace technological working regime when smelting different kinds of cast iron. Foundry iron of different kinds smelting technological regime. Burden revision methods and furnace work changing when turning to smelting foundry iron of different trademarks. Smelting of blast-furnace ferroalloys and special kinds of cast iron. 9 Blast-furnace heating rate control. Cast iron heating indices. Explanation of cast iron stabilisation heating effect. Rational principles of blast- furnace smelting heating rate control. Compensation of changes in burden and blast content influence on blast-furnace heating. Determination and compensation of renovation and heat exchange processes disorder in upper and lower blast-furnace zones. Ensuring of regulative actions with furnace heating optimal feedback. Dynamic performance of control channels with cast iron heating. 10 Control of blast-furnace smelting gas-dynamic regime. Technological principles of modern blast-furnaces run control. Methods of blast-furnace smelting gas-dynamic regime stabilisation under different optimisation criteria using. Laboratory training (12 hours) №of work Name 1 Studying of blast-furnace burden materials gas permeability at their mixing. 2 Computer based simulation of loading parameters influence on burden allocation on top. 3 Researching (on trenageur) of blast-furnace as smelting heating regime control object. 4 Receiving (on trenageur) of smelting heating regime control skills using different regulating actions and manual and automation control effectiveness comparison. 5 Studying (on trenageur) of possibilities blast-furnace gas-dynamic regime automatisation. 6 Receiving (on trenageur) of blast-furnace gas-dynamic regime operative stabilisation skills. Practical trainings (6 hours) № Name of training 1 Task solution on topic 5 about burden revision and calculation of blast- furnace productiveness and coke specific consumption brought to comparable conditions. 2 Solving of technological case study. Diagnostics of blast-furnace smelting gas-dynamic regime disorder. Prevention and elimination of technological disorder in blast-furnace work.

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TEMPUS Intermet CD JEP 25047 Part C. Steelmaking technologies (Under development) (2 ECTS) Part D. Steel casting technologies (1.5 ECTS) Lecture course (26 hours) № Name of category\subject and its content Hours 1 Introduction. Tasks solving at steel casting. Overview of 2 hydrodynamical, physical-chemical and thermo-physical steel casting processes. Physical-chemical steel characteristics. Liquid steel characteristics and their changes at cooling and crystallization under liquidus-solidus temperatures. 2 Hydrodynamical processes at steel casting. Steel hydrodynamic in steel 4 teeming and tundish ladles at their filling and during casting. Liquid steel flow. Liquid drain from nozzle. Flow regulation. Free flow characteristics. Conditions of steel flow destruction. Cavitational phenomena. Interaction of metal flow with liquid bath. Submerged flows in limited expanse. Hydrodynamical processes in mould and casting mould. 3 Heat and mass exchanged processes at steel casting. General scheme of 4 heat exchange at ladle filling and steel casting. Level of steel temperature lowering. Heat exchange foundations. Thermal conductivity. Thermal conductivity equation in general view. Boundary conditions, view of solving for plate, cylinder, sphere. Convective heat transfer. Similarity criterion and its physical meaning. Heat adjacent layer. Free and forced convection of liquid. Heat radiation. Stephen’s law. Heat exchange between ingot and mould. Temperatures allocation in ingot. Ingot solidification rate, square root law. Thermal strain at ingot solidification. Conditions of crack initiation. Processes of second steel corrosion at steel casting. Double-phase zone. Segregation and chemical inhomogeneity, influence of convection currents. 4 Steel crystallisation and forming of ingot structure. Crystal origin and 4 growth. New phase origin kinetics. Crystallisation heat. Ingot dendritic heterogeneity. Influence of crystallisation conditions on crystal sizes and shape, ingot crystal structure forming. Macrostructure of ingot and continuously casted billet. Influence of surface tension on crystallisation processes. Influence of solid inclusions in metal on crystallisation processes. Distribution of non-metallic inclusions in ingot structure. Methods of influence on ingot structure. 5 Shrink phenomena at ingot and billet solidification. Shrinkage 2 mechanism. Forming of shrinkage defects in ingots and billets. 6 Technology of killed steel casting in mould. Methods and facilities for 4 decreasing of shrinkage cavity into ingot. Steel casting under shielding medium. Technology of unkilled and balanced steel casting. Selection of killed steel casting and ingot forming optimal conditions. Speed of killed steel casting. Corked ingots of killed steel. Peculiarities of balanced steel  5

TEMPUS Intermet CD JEP 25047 getting. Steel ingots quality. (Ingots chemical inhomogeneity. Nonmetallic inclusions and gases in ingot, steel ingot surface damages, cold cracks and autocrack, macrostructure damages. Ingots quality control.) Ingots quality rising. 7 Main directions of steel casting on continuous casting. Technology of 4 steel casting and assembly construction at continuous casting. Stabilisation of steel casting temperature. Protection of metal from repetitive corrosion. Tundish ladle, casting mould, secondary cooling and other technological assemblies of continuous casting. Selection of continuously casted ingots cooling parameters. Increasing of speed for continuous casting and continuous casting production. Peculiarities of low-carbon steel casting. Defects origin at continuously casted billets and their quality. Continuously casted billets quality control. Improvement of billet quality. Application of outside influence at continuous steel casting. (Electromagnetic mixing. Vacuum treatment of steel at its casting in continuous casting. Using of powdered wire. Metal modification at continuous casting. Steel treatment with rare gas in continuous casting process). 8 Integration of continuous casting and metal forming processes. Ways of 2 integration. Technical and economic advantages and difficulties of integration. Development of casting-rolling processes. Examples of existing casting-rolling technologies. Practical trainings 4 hours № Name of work Hours 1 Calculation and selection of parameters for steel casting in 2 continuously casted billets. 2 Calculations of ladle nozzle diameter and flow control 2 conditions which guarantee given speed of steel casting. Laboratory trainings (8 hours) №Hoursof work  Name 1 Modelling of crystal layers creation at the steel ingot. 4 2 Modelling on physical model of steel ingot solidification. 4 Individual tasks for independent work №of work Hours Name 1 Calculations of continuously casted billet cooling and casting 8 speed. 2 Calculations of continuously casted billet solidification and 8 continuous casting mould cooling parameters. Prerequisites: The subject’s content is built up on knowledge of the physical- chemistry and also relevant metallurgy technologies and equipment.

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METHOD OF CONTROL:

Participation: 20% Lab Report: 30% Presentation: 30% Literature review (Home (library, I-net) works): 20%

TEMPUS Intermet CD JEP 25047

Final exam

Recommended Handbooks 1.ЕфименкоГ.Г.,ГиммельфарбА.А.,ЛевченкоВ.Е.Металлургиячугуна. Киев:Вищашкола, 1988.- 351с. 2.ПлискановскийС.Т.,ПолтавецВ.В.Оборудованиеиэксплуатация доменныхпечей:Учебникдлявузов.-Днепропетровск:Пороги, 2004.- 495с. 3.Металлургиячугуна:Учебникдлявузов/Подред.Ю.С.Юсфина.-М: Академкнига, 2004.-774с. 4.Доменноепроизводство:Справочноеиздание.Т.1.Подготовкаруди доменныйпроцесс/Подред.ВегманаЕ.Ф. –М:Металлургия. 1989.- 496с. 5.БережнойМ.М.,МовчанВ.П.,ПлевакоВ.С.Збагаченнятаокускування сировини. –Харків, 2000. – 365с. 6.M Ferrya: Direct strip casting of metals and alloys, 2006 7.Steel manual (2nd edition), 2003 8.G Stolte: Secondary metallurgy: Fundamentals, processes, applications, 2002 9.Fundamentals of metallurgy - Edited by S Seetharaman, 2005 Useful links http://www.steeluniversity.org http://www.matter.org.uk/ http://www.matter.org.uk/steelmatter/ http://steellinks.com

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