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Journal articles on the topic 'Metallurgical optimization'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Törrönen, Kari, Kim Wallin, Timo Saario, Hannu Hänninen, Rauno Rintamaa, and Jarl Forstén. "Optimization of metallurgical variables in fracture prevention." Nuclear Engineering and Design 87 (July 1985): 225–37. http://dx.doi.org/10.1016/0029-5493(85)90111-6.

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2

Mohrbacher, Hardy. "Martensitic Automotive Steel Sheet - Fundamentals and Metallurgical Optimization Strategies." Advanced Materials Research 1063 (December 2014): 130–42. http://dx.doi.org/10.4028/www.scientific.net/amr.1063.130.

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Martensitic sheet steel is increasingly being used in advanced car body construction, especially in areas where high crash loads are expected. Using such steels appropriately the weight of individual components can be reduced by up to 20 percent. Martensitic steel sheet is commercially available in the strength range of 1200 to 1900 MPa, either as cold forming or hot stamping grade. Whereas the strength of such martensitic steels is practically only a function of the carbon content, other properties such as ductility, toughness, bendability and delayed cracking resistance are severely influenc

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3

Zhang, Lifeng. "Optimization of Metallurgical Reactors Using Mathematical and Physical Modeling." JOM 66, no. 7 (2014): 1151–52. http://dx.doi.org/10.1007/s11837-014-1025-9.

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4

D’yakov, A. V., A. A. Odintsov, V. A. Kobelev, and G. A. Nechkin. "Optimization of agglomeration burdens by metallugical properties complex. Report 1. Optimization of agglomeration burdens by technological characteristics of sinter production." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information, no. 10 (November 9, 2018): 27–34. http://dx.doi.org/10.32339/0135-5910-2018-10-27-34.

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Despite a lot of studies of iron ore raw materials was carried out both in sinter and BF production areas, the matter of agglomeration burdens optimization is still actual. Laboratory studies on sintering of agglomeration burdens of different component content were carried out for optimization of iron ore burden content optimization, following by determination of technology characteristics and metallurgical properties complex.As a result of the studies an optimal component and size content of the agglomeration burden determined to provide improving of metallurgical properties complex of agglom

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5

Nechkin, G. A., D. A. Chernavin, and G. E. Isaenko. "Optimization of blast furnace charge by complex of metallurgical properties." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 75, no. 11 (2019): 1244–50. http://dx.doi.org/10.32339/0135-5910-2019-11-1244-1250.

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6

Butenko, Maria, Yury Shafran, Sergej Khoperskov, Vitalij Kholodkov, and Alexander Khoperskov. "The Optimization Problem of the Ventilation System for Metallurgical Plant." Applied Mechanics and Materials 379 (August 2013): 167–72. http://dx.doi.org/10.4028/www.scientific.net/amm.379.167.

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Some of the ventilation problems in the large industrial premises based on direct numerical integration of unsteady three-dimensional hydrodynamics equations with the real geometrical parameters are investigated. The model takes into account the work of the different ventilation and aspiration devices and the availability of metallurgical furnaces as additional sources of heat and gaseous components. The possibility of air renewal between the room and surrounding atmosphere is foreseen. Optimal placement of the venting devices and their effective modes of operation can provide good sanitary co

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7

Qiao, Shu Nan, Lu Hai Li, Wang Ming, and Li Xin Mo. "Superficial Optimization of Microcapsule." Key Engineering Materials 373-374 (March 2008): 690–93. http://dx.doi.org/10.4028/www.scientific.net/kem.373-374.690.

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To solve the gelatin gum arabic electronic ink microcapsules’ problems of thin shells, easy to break and poor mechanical properties, the above microcapsule was coated by urea-formaldehyde polymer and double shell microcapsule was got. The surface morphology of double shell microcapsules was observed by Metallurgical Microscopy, the dispersion particle size of microcapsules was measured by Laser Particle Size Analyzer, the microcapsules’ hermetization property was tested by UV-Vis spectrophotometer, and the mechanical intensity of microcapsule was measured by Microcomputer Control Omnipotence T

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8

Bazan, Bartosz, Aleksandra Potulska-Bazan, and Kajetan Witecki. "Impeller Radial Velocity and Air Flow Rate Influence on Copper Rougher Flotation Recovery." Civil and Environmental Engineering Reports 28, no. 1 (2018): 40–53. http://dx.doi.org/10.2478/ceer-2018-0004.

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Abstract A rougher flotation study has been done to analyze the effects of copper feed mineralogy, air flow rate and impeller radial velocity on metallurgical performance. During the performance testing the trials were exposed to metallurgical examining and computerised mineral analysis to establish a size-by-size mineralogy. The mineralogical and metallurgical information was compared to the material balance for rougher flotation results. These samples showed that copper recovery optimization should focus on the losses of liberated Cu-minerals and how they are associated with fine particles.

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9

Kozlov, V. V., A. P. Shevchik, S. A. Suvorov, N. V. Arbuzova, and D. V. Kuznetsov. "Modeling of the refractory's and slag's phase composition, the slag adjustment optimization and the ladle refining slag's stabilization." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 10 (December 29, 2018): 4–8. http://dx.doi.org/10.17073/1683-4518-2018-10-4-8.

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The modeling technique was proposed for the phase formation in the CaO‒MgO‒Al2O3‒SiO2‒FeO‒Fe2O3multicomponent oxide system. The technique can be used to predict the equilibrium phase composition for both the refractory and refractory-slag systems, as well as to modify the metallurgical slag's chemical composition, to extent the metallurgical unit's refractory service life, and in order to attaint the refractory-slag systems the mineral binding properties.Ill. 2. Ref. 7. Tab. 8.

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10

Togobitskaya, D. N., A. I. Belkova, and D. A. Stepanenko. "Development of a knowledge base for modeling the physicochemical properties of metallurgical systems and processes." Fundamental and applied problems of ferrous metallurgy, no. 33 (2019): 193–204. http://dx.doi.org/10.52150/2522-9117-2019-33-193-204.

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The Institute of Ferrous Metallurgy created the Knowledge Base “Metallurgy” (BDMet). It can be used to model the physicochemical properties of metallurgical systems and processes based on modern computer information technology. The aim of the work is to develop the fundamental foundations and identify the main directions of development of PMD, expand the presentation of fundamental, technological and regulatory reference information for analysis and multi-criteria optimization of technological processes. A component of BDMet is also the Base of models of metallurgical systems and technological

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11

He, Da Kuo, Wei Qin, Tong Shan Liu, and Qing Yun Yuan. "Study on Optimization Control Method of the Pickling Process." Applied Mechanics and Materials 397-400 (September 2013): 1326–30. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.1326.

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The pickling process is the important metallurgical production process. Based on pickling process prediction model, considering the max economic efficiency as the optimized objective, and seeing the operating variables as the decision variables, this paper establishes the pickling process optimization model and makes the optimized calculation to get the value of each key control circuit. At the same time, considering the pickling process prediction model error brings the uncertainty to the optimization results, based on iterative optimization control thoughts do pickling process optimization c

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12

GUI, Wei-Hua, Chun-Hua YANG, Xiao-Fang CHEN, and Ya-Lin WANG. "Modeling and Optimization Problems and Challenges Arising in Nonferrous Metallurgical Processes." Acta Automatica Sinica 39, no. 3 (2014): 197–207. http://dx.doi.org/10.3724/sp.j.1004.2013.00197.

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13

GUI, Wei-Hua, Chun-Hua YANG, Xiao-Fang CHEN, and Ya-Lin WANG. "Modeling and Optimization Problems and Challenges Arising in Nonferrous Metallurgical Processes." Acta Automatica Sinica 39, no. 3 (2013): 197–207. http://dx.doi.org/10.1016/s1874-1029(13)60022-1.

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14

Zeng, Kejun, Mike Pierce, Hiroshi Miyazaki, and Becky Holdford. "Optimization of Pb-Free Solder Joint Reliability from a Metallurgical Perspective." Journal of Electronic Materials 41, no. 2 (2011): 253–61. http://dx.doi.org/10.1007/s11664-011-1732-8.

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15

Clausen, Thomas, and Otto Leistiko. "Metallurgical optimization for ohmic contacts to InP using conventional metallization schemes." Microelectronic Engineering 18, no. 4 (1992): 305–25. http://dx.doi.org/10.1016/0167-9317(92)90131-a.

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16

Chen, Jun, An Lin Li, Yong Chen, Xin Teng Liang, and Jian Hua Zeng. "Optimization of Steelmaking Process for 200t Converter." Advanced Materials Research 581-582 (October 2012): 1180–83. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.1180.

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To solve the problems appeared in the initial operation period of 200t BOF such as low heating velocity, high TFe content in final slag, severe lining erosion, etc, optimization of steelmaking process is carried out. Metallurgical effects are greatly improved after optimization: slag-forming time is shortened by 0.9min; oxygen consumption is lowered by 1.5 m3 per ton steel; carbon content of aimed molten iron is increased by 0.031% while oxygen activity of which is decreased by 206ppm. TFe content of BOF slag is reduced by 0.84% on average.

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17

Cheepu, Muralimohan, D. Venkateswarlu, P. Nageswara Rao, S. Senthil Kumaran, and Narayanan Srinivasan. "Optimization of Process Parameters Using Surface Response Methodology for Laser Welding of Titanium Alloy." Materials Science Forum 969 (August 2019): 539–45. http://dx.doi.org/10.4028/www.scientific.net/msf.969.539.

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Laser beam welding input conditions are greatly influence the quality of the welded joints and they have significant role on the controlling of their strength and metallurgical properties. The metallurgical properties and weld bead geometry and mechanical properties of the joints determine the quality of the joints. In this study, the fusion zone width, penetration, width of the heat affected zone and strength of the titanium alloy welds were investigated using laser welding process. The surface response methodology design is carried out for the experimental design by the development of regres

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18

Wu, Tie Bin, Yun Cheng, Hong Qiu Zhu, Yong Gang Li, and Zhi Kun Hu. "A New Operational Pattern Optimization Method and Its Application in Nonferrous Metallurgy." Advanced Materials Research 690-693 (May 2013): 3194–98. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.3194.

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Considering the difficulties of optimizing the operational parameters of the nonferrous metallurgical process, a new operational pattern optimization method is proposed, which introduces product quality and energy consumption index. Principle Component Analysis (PCA) is used to simplify the operational patterns, reduces the data dimension and overcomes the low efficiency of the operational patterns caused by huge pattern database. After the attribute reduction of PCA, the weighted attribute coefficient of the new variable is solved and a new hybrid similarity calculation method is presented, w

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19

Кійко, Сергій Геннадійович, Євген Анатолійович Дружинін та Олександр Валерійович Прохоров. "МОДЕЛЬ СТРУКТУРНОГО СИНТЕЗУ ПОРТФЕЛЯ ЕНЕРГОЗБЕРЕГАЮЧИХ ПРОЕКТІВ МЕТАЛУРГІЙНОГО ПІДПРИЄМСТВА". RADIOELECTRONIC AND COMPUTER SYSTEMS, № 4 (25 грудня 2019): 62–70. http://dx.doi.org/10.32620/reks.2019.4.07.

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The features of the formation of a portfolio of projects following the energy-saving strategy of metallurgical enterprises are considered. As a result of the analysis of the energy-saving program structure at the metallurgical enterprises, it was found the problems that are solved by the energy-saving projects are inefficient consumption (significant losses) of energy resources (gas, thermal energy, electricity), control over the costs formation and the results of improvements in energy consumption. The overall goal of improving energy efficiency at the enterprise is realized through the manag

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20

Popov, A. T., O. A. Suslova, and E. A. Voronkova. "Optimization of the Process of Unloading of Iron Ore Raw Materials: The Case of a Steel Plant." World of Transport and Transportation 18, no. 3 (2020): 148–62. http://dx.doi.org/10.30932/1992-3252-2020-18-148-162.

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The process of unloading iron ore raw materials of the metallurgical plant to the sinter plant has not been considered for a long time as a particular topic. Over the last years the conditions of metallurgical production have undergone certain changes: its intensification has occurred, which entails the need to re-evaluate parameters of stable operation of sinter production. The objective of the suggested study is to consider the issues of possible technical and technological improvement harmonizing transport flows with the requirements of the main production process. To achieve this goal, a t

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21

Coppola, Tommaso, Filippo Dionisi Vici, Arianna Gotti, Luigi Langellotto, and Sandro Notargiacomo. "Plastic Deformation and Metallurgical Evolution Modelling for Defects Reduction and Quality Optimization." Procedia Engineering 81 (2014): 1240–45. http://dx.doi.org/10.1016/j.proeng.2014.10.104.

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22

Ioana, Adrian, Augustin Semenescu, Mihnea Costoiu, and Dragos Marcu. "Retail optimization in Romanian metallurgical industry by applying of fuzzy networks concept." MATEC Web of Conferences 112 (2017): 04020. http://dx.doi.org/10.1051/matecconf/201711204020.

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23

Kharisov, L. R., N. N. Safronov, and G. N. Safronov. "Integral Performance Criterion of Self-Propagating High-Temperature Synthesis Ferrosilid for Optimization of Charge Composition." Solid State Phenomena 265 (September 2017): 657–62. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.657.

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An algorithm of optimization of the charge for metal-containing waste processing of metallurgical and foundry industries was developed. The processing method is based on the phenomenon of self-propagating high-temperature synthesis (SHS) of ferroalloys of the composition of dispersed waste without the use of external sources of heat due to internal energy.

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24

Xu, Ni Jun, Jian Bin Lv, Ting Sun, and Chang Sheng Liu. "Process Optimization and Properties of Laser Cladding High Vanadium High Speed Steel Coatings on Nodular Cast Iron." Advanced Materials Research 712-715 (June 2013): 611–14. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.611.

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As withstanding very high loads, thermal cycling leading to thermal fatigue, and severe environmental in the steel industry, rolls with long service life are specially required. High speed steel with high vanadium content is a newly-developed wear-resistance material that has been studied and used in some countries for making steel rolls. As a surface treatment technology, laser cladding can fabricate coating to improve the wear resistance of substrate. In this paper, the substrates for laser cladding were nodular cast iron rolls, Nd: YAG solid pulsed laser was used to explore the feasibility

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25

Mans, Pierre-Marie, Sebastien Jouan, Sebastien Fregonese, et al. "SiGe HBTs Optimization for Wireless Power Amplifier Applications." Active and Passive Electronic Components 2010 (2010): 1–6. http://dx.doi.org/10.1155/2010/542572.

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This paper deals with SiGe HBTs optimization for power amplifier applications dedicated to wireless communications. In this work, we investigate thefT-BVCEOtradeoff by various collector optimization schemes such as epilayer thickness and dopant concentration, and SIC and CAP characteristics. Furthermore, a new trapezoidal base Germanium (Ge) profile is proposed. Thanks to this profile, precise control of Ge content at the metallurgical emitter-base junction is obtained. Gain stability is obtained for a wide range of temperatures through tuning the emitter-base junction Ge percent. Finally, a c

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26

Kadykov, V. N., A. I. Musatova, and R. S. Koinov. "Development of a set of regulatory models for metallurgical enterprise divisions functioning." Izvestiya. Ferrous Metallurgy 64, no. 8 (2021): 606–10. http://dx.doi.org/10.17073/0368-0797-2021-8-606-610.

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Methodology of normative models, algorithms for their construction, as well as procedures for application in production facilities control and optimization tasks should fully meet modern requirements: multivariance, caseorientation, complexity, optimality, dynamism, ﬂexibility. The listed aspects of construction and application of normative models for functioning of metallurgical enterprise divisions are presented in this work.

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27

Ji, Zhen Ping, and Yuan Yuan Jiang. "Optimization of Cooling Parameters in Casting Processes Based on Adaptive Evolutionary Particle Swarm Algorithm." Advanced Materials Research 468-471 (February 2012): 2399–402. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.2399.

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The aim of this work was to develop an optimization tool consisting of a two dimensional heat transfer model and an optimization algorithm to determine the improved cooling conditions for the sprays zones of a real continuous caster. The mathematical model of cooling process was used to calculate the strand temperatures along the machine. An optimization algorithm based on an Adaptive Evolutionary Particle Swarm Optimization (AEPSO) approach was used to solve an optimal control of secondary cooling water distribution according to certain metallurgical criteria and some technological constraint

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28

Wu, Yu-Liang, Ze-Yi Jiang, Xin-Xin Zhang, et al. "Process optimization of metallurgical dust recycling by direct reduction in rotary hearth furnace." Powder Technology 326 (February 2018): 101–13. http://dx.doi.org/10.1016/j.powtec.2017.12.063.

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29

Edwardson, Stuart P., Jonathan Griffiths, Ghazal Sheikholeslami, and Geoff Dearden. "Optimization of Beam Mode for High Efficiency Laser Thermal Forming within Metallurgical Constraints." Physics Procedia 56 (2014): 1392–99. http://dx.doi.org/10.1016/j.phpro.2014.08.069.

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30

Mecklenburg, A., U. Kunz, and U. Hoffmann. "Optimization of the Comminution of Metallurgical Grade (MG) Silicon in a Vibration Mill." Chemical Engineering & Technology 23, no. 10 (2000): 863–67. http://dx.doi.org/10.1002/1521-4125(200010)23:10<863::aid-ceat863>3.0.co;2-z.

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31

Song, Chun Yan, Yong Liang Gui, Bin Sheng Hu, and Quan Hui Li. "Optimization and Selection of Solid Fuel Type in Sintering Process." Applied Mechanics and Materials 303-306 (February 2013): 2581–84. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.2581.

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In order to use resonably fuel resources and reduce cost of manufacture, the effects of coke and coal powder on chemical coposition and metallurgical properties of sinter were studied with the iron ore blender as the iron-contained materials. Results shown that the reducibility at 900°C was slightly improved and the low temperature reduction degradation index was worsened with the coke powder as the solid fuel relative to coal powder under the equal calorific value condition. However, with the increasing of solid fuel ratio, the mechanical strength and low temperature reduction degradation ind

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32

Lv, Jian Bin, Zheng Yi Wang, Xue Wei Wang, and Chang Sheng Liu. "Process Optimization and Properties of Laser Cladding High Speed Steel Coatings on Nodular Cast Iron." Advanced Materials Research 418-420 (December 2011): 1527–30. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.1527.

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Rolls in the steel industry withstand very high loads, thermal cycling leading to thermal fatigue, and severe environmental. How to improve the wear resistance and elongate the service life of rolls matters a lot in reducing the consumption of rolls. In recent years, because of its better red-hardness and wear property, high speed steel (HSS) was used to manufacture the new type composite rolls. As a surface treatment technology, laser cladding can fabricate coating to improve the wear resistance of substrate. In this paper, the substrates for laser cladding were nodular cast iron rolls, Nd:YA

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33

Chen, Wei, Yong Ping Feng, Na Zheng, and Ying Chen. "Optimization of Secondary Cooling on Rectangular Bloom Based on Subproblem Approximation Method." Advanced Materials Research 581-582 (October 2012): 932–35. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.932.

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For understanding the surface and internal defects of Q195 steel of 150mm×220mm rectangular bloom, a solidification heat transfer mathematics model based on temperature measuring is established. Meanwhile, the secondary cooling water is optimized according to the metallurgical criteria by means of subproblem approximation method. The results showed that: after the optimizing result is applied in actual production, the water consumption is reduced 8.2~11.5%, the quality of bloom improved obviously, and the defects such as central pipe, center porosity and internal cracks are reduced respectivel

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34

Yur'ev, Boris, Vyacheslav Dudko, and Elena Korelina. "Optimization of Siderite Ore Sintering Operation Conditions." Materials Science Forum 989 (May 2020): 417–22. http://dx.doi.org/10.4028/www.scientific.net/msf.989.417.

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Research was сarried out on a pilot plant on sintering of various size siderite ore and limonite taken in various ratios. To study impact of a number of process factors on the sintering process performance and the obtained agglomerate quality at the minimum number of the carried out experiments, one of the experiment planning methods was used, and regression equations were derived. With these equations the effect of the ore size, siderite ore and limonite ratio, solid fuel consumption, sintered layer height on the agglomeration unit performance and the agglomerate metallurgical properties was

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35

Luo, Xiao Chuan, and Chong Zheng Na. "GA-CDFM Based Hybrid Optimization Method for Steelmaking Scheduling and Caster Operation." Advanced Materials Research 424-425 (January 2012): 994–98. http://dx.doi.org/10.4028/www.scientific.net/amr.424-425.994.

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In steelmaking plant, the process times of machines change frequently and randomly for the reason of metallurgical principle. When those change happen, the plant scheduling and caster operation must respond to keep the optimal performance profile of plant. Therefore, the integration of plant scheduling and caster operation is a crucial task. This paper presents a mixed-integer programming model and a hybrid optimized algorithm for caster operation and plant scheduling, which combine the genetic algorithm optimization and CDFM process status verification. Data experiments illustrate the efficie

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Gao, Yuan, Xin Huang, Ming Jie Lin, Zheng Guo Wang, and Rong Lei Sun. "Analysis and Prediction of Surface Integrity in Machining: A Review." Applied Mechanics and Materials 487 (January 2014): 165–72. http://dx.doi.org/10.4028/www.scientific.net/amm.487.165.

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Surface integrity is widely used for evaluating the quality of machined components. It has a set of various parameters which can be grouped as: (a) topography parameters (b) mechanical parameters and (c) metallurgical state. Many factors affect surface integrity including cutting parameters, tool geometry, material properties and vibrations. We can make prediction and optimization for surface integrity by taking advantages of these factors. This paper reviews previous studies and offers a comprehensive summary of surface integrity in the following order: introduction of surface integrity, main

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37

Wang, Han, Long Bo Tian, and Hai Hao. "Integrated Computation and Preparation Optimization of In Situ Ordered Porous Aluminum Filled Tubes." Materials Science Forum 993 (May 2020): 857–62. http://dx.doi.org/10.4028/www.scientific.net/msf.993.857.

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As a kind of structural and functional composite material, foam filled tubes have an application prospect in automobile industry because it meets the requirements of automobile light weight and safety performance. The traditional preparation method of foam filled tubes is ex-situ preparation and there is no metallurgical bonding between the ordered porous aluminum filler and the thin-walled tube. In this study, the in-situ ordered porous aluminum filled tubes were proposed and prepared by combining the additive manufacturing technique and infiltration casting technique. The sand preform fabric

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38

Romanenko, Igor, and Alexey Fadin. "Optimization of Compositions and Hardening Conditions of Vibropress Concretes Based on Steel-Making Slag." Materials Science Forum 1037 (July 6, 2021): 715–20. http://dx.doi.org/10.4028/www.scientific.net/msf.1037.715.

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The purpose of the study is to study the possibility of using secondary resources of metallurgical production, namely: steel-making slag and carbon dioxide in the production of vibropress products for construction purposes. The tests were carried out with the complete replacement of the coarse aggregate in the concrete mixture with steelmaking slag and varying the hardening processes. The optimal condition for strength gain is hardening in carbon dioxide at an increased pressure of 0,2 MPa.

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39

Ziebik, A., M. Warzyc, and P. Gładysz. "Determination of the Optimal Structure of Repowering a Metallurgical CHP Plant Fired with Technological Fuel Gases." Archives of Metallurgy and Materials 59, no. 1 (2014): 105–16. http://dx.doi.org/10.2478/amm-2014-0017.

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Abstract CHP plants in ironworks are traditionally fired with low-calorific technological fuel gases and hard coal. Among metallurgical fuel gases blast-furnace gas (BFG) dominates. Minor shares of gaseous fuels are converter gas (LDG) and surpluses of coke-oven gas (COG). Metallurgical CHP plant repowering consists in adding a gas turbine to the existing traditional steam CHP plant. It has been assumed that the existing steam turbine and parts of double-fuel steam boilers can be used in modernized CHP plants. Such a system can be applied parallelly with the existing steam cycle, increasing th

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40

Rybenko, I. A., and Hans-Görg Roos. "Technological modes of metals direct reduction in an aggregate of jet-emulsion type." Izvestiya. Ferrous Metallurgy 63, no. 5 (2020): 364–72. http://dx.doi.org/10.17073/0368-0797-2020-5-364-372.

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The paper presents the method and instrumental system for modeling and optimizing technological modes of direct metal reduction processes in a jet-emulsion aggregate (JER). Stages of the method are considered. The first one is the problem statement: formation of target conditions, choice of the process type, the task and system of optimization criteria. The second stage includes selection of the object of study: setting parameters of input and output flows, process parameters, stages and subprocesses. The third one includes thermodynamic modeling to assess the final equilibrium state in which

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41

Petronić, Sanja, Biljana Grujic, Dubravka Milovanovic, and Radomir Jovicic. "Optimization of Laser Beam Cutting Process Parameters of Austenitic Materials." Advanced Materials Research 1111 (July 2015): 235–39. http://dx.doi.org/10.4028/www.scientific.net/amr.1111.235.

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Austenitic materials have high demand in modern manufacturing industries due to their improved technological characteristics such as high mechanical strength and hardness, corrosion resistance, heat resistance and wear resistance. Some applications of austenitic materials include elevated pressure and temperature, and require stringent design requirements and close tolerances in manufactured products. Laser cutting is one of the non-conventional cutting processes, used to obtain complex shapes and geometries. In this paper, laser cutting was performed on austenitic material. The laser cutting

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Mancini, Silvia, Paolo Emilio di Nunzio, Sandro Notargiacomo, and Luigi Langellotto. "Defect Reduction and Quality Optimization through the Modelling of Plastic Deformation and Metallurgical Evolution." Materials Science Forum 1016 (January 2021): 846–51. http://dx.doi.org/10.4028/www.scientific.net/msf.1016.846.

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The finite element modelling is a well-established technique in studies of plastic deformation. Many commercial codes, both general purpose or dedicated, implement general constitutive laws sufficient for a first level use. However, some issues need to be addressed by using specific formulations or require more advanced modelling to take into account complex behaviors. In the present contribution, an overview of the main issues that arise in the study of hot deformation processes and their theoretical and software tools available in CSM SPA is presented with their applications to industrial ca

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Numata, K., K. Mori, H. Yamamoto, H. Sekine, K. Inoue, and H. Maeda. "Metallurgical studies and optimization of sintering for the Bi‐Sr‐Ca‐Cu‐O superconductors." Journal of Applied Physics 64, no. 11 (1988): 6392–95. http://dx.doi.org/10.1063/1.342052.

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Corpas-Martínez, J. R., A. Pérez, C. Amor-Castillo, R. Navarro-Domínguez, M. A. Martín-Lara, and M. Calero. "Optimal Depressants and Collector Dosage in Fluorite Flotation Process Based on DoE Methodology." Applied Sciences 9, no. 3 (2019): 366. http://dx.doi.org/10.3390/app9030366.

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Alternative processes have been proposed for selective separation of fluorite and gangue minerals (carbonates and silicates) present in fluorspar ores. Calcination and gravity separation processes are methods that have low efficiency and high cost. Flotation is a chemical process that becomes important when high ore grades are required; however, the selectivity is inhibited by the superficial similarity of the chemical composition of minerals. Accordingly, interactions between dissolved ionic species of fluorite, carbonates, and silicates with some reagents under determinate conditions obstruc

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Song, Hong Xi, Jian Xin Zhang, Kun Gao, Wei Meng, and Li Cheng. "Optimum Charge Plan of Steelmaking Continuous Casting Based on the Modified Multi-Objective Evolutionary Algorithm." Advanced Materials Research 694-697 (May 2013): 3406–11. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.3406.

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The charge plan is a basic problem of the metallurgical industry. Through a comprehensive consideration of the process constraints and production costs, charge plan is a typical multi-objective optimization problem. A multi-objective optimization model of charge plan was built in this paper. As direct encoding is hard to be used in the many constraints problem case, a new method of generate feasible solutions based on constraint satisfaction was proposed. A novel adaptive grid algorithm was also proposed to improve the current multi-objective evolutionary algorithm’s population maintain strate

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Jia, Jun Li, Jin Hong Zhang, and Guo Zhen Wang. "Metallurgical Secondary Cooling of Continuous Casting Based on Neural Network Adaptive System Design of Water Distribution." Advanced Materials Research 926-930 (May 2014): 802–5. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.802.

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Efficient secondary cooling water control level slab continuous casting process and quality are closely related. Casting solidification heat transfer model is the basis of process control and optimization, heat transfer model based on determining the secondary cooling system is the most widely used method for casting production process can be simulated. However, when considering the many factors affecting the production and input conditions change significantly, real-time and strain of this method is not guaranteed. Therefore, the artificial intelligence optimization algorithms such as genetic

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Alkhimenko, Alexey. "Corrosion testing of experimental steels for oilfield pipelines." E3S Web of Conferences 121 (2019): 01001. http://dx.doi.org/10.1051/e3sconf/201912101001.

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Emergency equipment failures at oilfield pipelines are often associated with corrosion damage of the pipe material. Optimization of the chemical composition of the used steel can play a significant role in increasing the corrosion resistance under the condition of ensuring the metallurgical quality of pipes. This article presents a comparative assessment of the corrosion resistance of the used Fe-Cr-Cu-Mn-V steel and experimental compositions, basing on the results of electrochemical studies and tests for general corrosion.

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Aksyonov, Konstantin, and Anna Antonova. "Development of a Simulation Model of Cutting Slabs in a Continuous Casting Machine." Applied Mechanics and Materials 775 (July 2015): 224–28. http://dx.doi.org/10.4028/www.scientific.net/amm.775.224.

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In the article the development of a simulation model of cutting slabs in a continuous casting machine is considered. Simulation modeling is used to optimize the sequence of the melts supplied to the continuous casting machine. The goal of optimization is to reduce the deviation between the estimated and actual numbers of slabs, because such deviations can lead to missed deadlines. The model of cutting slabs has been designed with the use of a models creation module of the metallurgical enterprise information system. The models creation module supports the simulation model creation and multi ag

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Mancini, Silvia, Luigi Langellotto, Paolo Emilio Di Nunzio, Chiara Zitelli, and Andrea Di Schino. "Defect Reduction and Quality Optimization by Modeling Plastic Deformation and Metallurgical Evolution in Ferritic Stainless Steels." Metals 10, no. 2 (2020): 186. http://dx.doi.org/10.3390/met10020186.

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Manufacturing of ferritic stainless steels flat bars is an important industrial topic and the steel 1.4512 is one of the most commonly used grades for producing this component. In this paper, the origin of some edge defects occurring during hot rolling of flat bars of this grade is analyzed and thermomechanical and microstructural calculations have been carried out to enhance the quality of the finished products by reducing the jagged borders defect on hot rolled bars. An accurate investigation has been carried out by analyzing the defects on the final product from both the macroscopic and mic

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de Villiers, J., and S. Verryn. "The use of X-ray diffraction for process optimization in the minerals and metallurgical industry." Acta Crystallographica Section A Foundations of Crystallography 63, a1 (2007): s84. http://dx.doi.org/10.1107/s0108767307098157.

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