Subject · Materials engineering
Qara metalların metallurgiyasıTopics
Topic plan
The subject's topics and the learning outcomes attached to each one.
1. Metallurgy of ferrous metals. raw materials. preparation operations.
LectureBasics of ferrous metallurgy, raw materials used (iron ores, fluxes, fuel) and their preparation for smelting (crushing, sorting, washing) processes.
2. Ores and their processing. consolidation of ores
LectureMethods of beneficiation of iron ores and consolidation of small ore particles by thermal processing (agglomeration and production of pellets).
3. Iron oxides and their reduction
LectureThermodynamic and kinetic laws of oxygen compounds of iron and their successive reduction by means of carbon monoxide, hydrogen and solid carbon.
4. The formation of cast iron and pitch
LectureAs a result of saturation of reduced iron with carbon in the blast furnace, pig iron is formed and slag is formed from loose rock, ash and flux residues.
5. Recycling pig iron and their purchase
LectureCharacteristics of the chemical composition of recycled (peredel) pig iron intended for steel production and the technology of their melting in a blast furnace.
6. Cleaning of air heater and koloshnik gas
LectureWorking principle of air heaters (coopers) and dust cleaning systems of koloshnik gas released during the process to increase the thermal efficiency in the blast furnace process.
7. Purchase of iron outside the blast furnace
LectureGeneral principles of direct iron recovery (dri) methods from iron ore without the use of coke as an alternative to the traditional blast furnace process.
8. Production of sponge iron. acquisition of spongy iron in puta
LectureThe technology of obtaining porous (sponge-like) iron by reduction in the solid state and the implementation of this process in special refractory pots (crucibles).
9. Production of sponge iron. acquisition of spongy iron in puta
LectureThe technology of obtaining porous (sponge-like) iron by reduction in the solid state and the implementation of this process in special refractory pots (crucibles).
10. Production of sponge iron in rotary kilns
LectureTechnology of sponge iron production using solid reducing agents in tubular rotary furnaces.
11. Production of sponge iron in rotary kilns
LectureTechnology of sponge iron production using solid reducing agents in tubular rotary furnaces.
12. Production of sponge iron in a fluidized bed furnace
LectureProcesses of reduction of small dispersed ore particles by keeping them suspended (boiling bed) through gas flow.
13. Buying iron in the form of logs
LectureThe role of technology and historical methods in the modern metallurgy of the production of log iron (kritcha) in the form of an alloy containing impurities of resin.
14. Direct purchase of steel from ore
LectureModern integrative metallurgical processes that provide liquid steel directly from iron ore, bypassing the pig iron production stage.
15. Steelmaking in a bessemer converter. small bessemerization process
LectureSmall capacity bessemer for steel casting and small foundries.
16. Steelmaking in a bessemer converter. small bessemerization process
LectureSmall capacity bessemer for steel casting and small foundries.
17. Different types of oxygen-converter process. OLP process. ld-as process, kal-do process. OCP process. rotor process
LectureModern converter processes with top, bottom and combined oxygen blowing and rotary converter technologies such as kal-do, rotor for machining specific cast irons (phosphorous etc.).
18. The structure and working principle of the marten furnace. basic marten process. sour marten process. melting progress in the main process
LectureThe structure of the steelmaking process in regenerative flame furnaces (marten), classification according to the nature of the linings (basic and sour) and melting cycles.
19. Electric arc furnace construction. designs of induction furnaces and the technology of pig iron melting in them. smelting in induction furnaces.
LectureStructural elements of electric arc and induction furnaces, working principles and melting of high-quality alloys in these furnaces.
20. Methods of increasing the quality of steel. melting in a vacuum electric-arc furnace. remelting with electric posa. plasma melting. melting with electron beams
LectureSpecial electrometallurgical methods and remelting (refining) technologies applied to obtain steels with high purity and special properties.
21. Casting technology of steel ingots. mold production. die casting production. casting by liquid stamping method. centrifugal casting. production of castings on molten models. production of castings in thin-shell molds. production of castings by vacuum suction method. production of castings by vibration
LecturePouring of liquid steel into molds of various geometric shapes, including special-purpose advanced casting (pressure, centrifugal, precision casting) technological sequence.
22. Defects in ingots and how to deal with them. structural structure of ingots
LectureInternal and external defects (voids, porosity, chemical inhomogeneity, cracks) arising during crystallization of steel ingots and castings and their prevention.