Academic literature on the topic 'Ingot molds'

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Journal articles on the topic "Ingot molds"

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Stets, P. D., N. G. Goch, V. S. Voroshilin, V. N. Golovkin, and G. G. Kondratova. "Thermally balanced ingot molds." Metallurgist 35, no. 3 (March 1991): 51. http://dx.doi.org/10.1007/bf00759898.

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Selivanov, Yu N., N. G. Lipovaya, A. I. Gunina, L. I. Eliseev, and B. A. Afanas'ev. "New protective coating for ingot molds." Metallurgist 35, no. 3 (March 1991): 50. http://dx.doi.org/10.1007/bf00759897.

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Zinchenko, V. G., M. O. Peshkov, and V. E. Roshchin. "Increasing the quality of forged ingots via thermal shielding of ingot molds." Russian Metallurgy (Metally) 2012, no. 6 (June 2012): 531–34. http://dx.doi.org/10.1134/s0036029512060249.

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Kiselev, V. I., V. A. Denisov, V. G. Korogodskii, A. V. Shnaider, and Yu D. Isupov. "Advantages of using lignosulfonates to lubricate ingot molds." Metallurgist 33, no. 12 (December 1989): 238. http://dx.doi.org/10.1007/bf00750274.

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Smolyakov, A. S., S. I. Shakhov, and B. A. Sivak. "Improvement of the tube mold to ensure uniform primary cooling of the ingot." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 77, no. 3 (March 28, 2021): 288–94. http://dx.doi.org/10.32339/0135-5910-2021-3-288-294.

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For centering the cooling jackets of CCM tube molds relative to the tube, bolts twisted into the jacket are used. The adjustment is made manually, as a result the annular gap between the sleeve and the jacket can have a significant deviation from the specified values. The gap function is to cool the structure by passing water. Taking into account that almost all the modern CCMs for casting long, bloom and round billets are equipped with tube molds, creating a mold design in which the gap between the tube and the cooling jacket is formed with a high degree of accuracy, ensuring uniform heat removal from the walls of the tube is an urgent task. This is necessary to ensure a uniform thickness of the shell of the solidifying billet. The conditions were considered for the formation of a uniform shell of a solidifying ingot in a mold and the production of a billet that meets the requirements for its surface and geometric dimensions, the absence of internal and external cracks of thermal origin. It was shown that the violation of the alignment of the cooling jacket and the tube surfaces results in violation of the uniformity of the cooling water flow. The difference in the volume of water flowing in various parts of the gap between the tube and the jacket can reach 40%. When casting billets with diameters of 600 and 550 mm, the difference in heat flows due to misalignment in existing molds can be 30–40% and 25–35% respectively, and with a cross section of 300×400 mm – 13–23%. In order to eliminate these shortcomings, a new design of the tube mold was developed in VNIIMETMASH (Moscow), in which the gap between the sleeve and the cooling jacket is formed with high accuracy, ensuring uniform heat removal from the walls of the tube and obtaining a uniform thickness of the shell of the solidifying ingot. This will ensure that the casted billet meets the requirements for its quality parameters and geometric dimensions. The diagram of the designed mold for the bloom CCM, which produces billets with a cross section of 340×380 mm is presented.
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Belevitin, Vladimir, Yevgen Smyrnov, and Vitalii Skliar. "Forecasting Increase of Quality of Large-Sized Forgings Used for Stamping, Piercing, and Rolling of High-Duty Products." Materials Science Forum 989 (May 2020): 660–64. http://dx.doi.org/10.4028/www.scientific.net/msf.989.660.

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When utilizing current combined systems of manufacturing large-sized shaft forgings, there is a tendency towards using an integrated approach, which consists in optimizing the shape of forged ingots and methods of their forging, intensifying shear strains in the axial zone of the ingots during their plastic deformation, and eliminating asymmetry of external forces at various points along the cross section of the ingot being deformed. This paper presents the results of the comparative analysis of quality of shaft forgings when forging ingots with a three-beam symmetric and asymmetric cross-section, as well as with the traditional octahedral cross-section, are used for the manufacture of shaft forgings. It has been shown that the use of forging ingots with a three-beam symmetrical and asymmetrical cross section provided an increase of KCU by an average of 4.3% and 13.1%, and of density by 17.5% and 21.0%, respectively, in the absence and presence of inert gas (argon) blowdown of the melt in the casting ladle before casting it into ingot molds. Their use also contributes to an increase in the number of forgings, suitable for ultrasonic testing, according to the C/c class with a permissible equivalent discontinuity diameter of ≤ 3 mm.
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Panychev, S. I., and G. Sh Kiriya. "Production of a protective oxide coating on ingot molds." Metallurgist 34, no. 9 (September 1990): 188. http://dx.doi.org/10.1007/bf00748253.

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Tyurin, V. A., Yu V. Lukanin, and A. V. Morozov. "Ingot molds for obtaining long cylindrical ingots and features of the macrostructure of the metal." Metallurgist 56, no. 9-10 (January 2013): 742–47. http://dx.doi.org/10.1007/s11015-013-9645-9.

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Bubnov, S. Yu. "Mechanization of the tilting of ingot molds with calcium carbide." Metallurgist 31, no. 6 (June 1987): 171–72. http://dx.doi.org/10.1007/bf00733003.

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Sakhnov, B. I., and B. F. Stroganov. "Casting of steel into ingot molds as a “submerged” jet." Metallurgist 55, no. 9-10 (January 2012): 659–63. http://dx.doi.org/10.1007/s11015-012-9483-1.

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Dissertations / Theses on the topic "Ingot molds"

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Tan, Zhe. "Modeling of Initial Mold Filling in Uphill Teeming Process Considering a Trumpet." Licentiate thesis, KTH, Tillämpad processmetallurgi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-73948.

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The flow pattern in the uphill teeming process has been found to be closely related to the quality of ingots and further to affect the yield of ingot production, which is crucial for the steel making process. The formation of non-metallic inclusion and entrapment of mold flux has been considered to be affected by the flow pattern in the gating system and molds by many previous researchers. The aim of this study is to investigate the flow pattern of steel in the gating system and molds during the initial filling stage. In addition, to study the utilization of swirl blade implemented at the bottom of the vertical runner on the improvement of initial filling condition in the mold. A three dimensional model of two molds gating system for 6.2 ton ingots from Scana Steel was adopted in the present work. A reduced geometry model including one mold and a runner, based on the method from previous researchers, was also used for comparison with the current more extensive model. Moreover, a reduced geometry model including one swirl blade and a runner was simulated to find effects of an increased-length vertical runner on the flow pattern improvement at the vertical runner outlet. Flow pattern, hump height and wall shear stress were respectively studied. A reduced geometry with homogenous inlet conditions fails to describe the fluctuating conditions present as the steel enters the mold. However, the trends are very similar when comparing the (hump height-surface height) evolution over time. The implementation of swirl blades gives a chaotic initial filling condition with a considerable amount of droplets being created when steel enters the molds during the first couple of seconds. However, a more calm filling condition with less fluctuation is achieved at the molds after a short while. Moreover, the orientation of the swirl blades affects he flow pattern of the steel. A proper placement of a swirl blade improves the initial filling conditions. The utilization of swirl blades might initially result in larger hump height. However, it gives fewer fluctuations as the casting proceeds. In the model without swirl blades, the maximum wall shear stress fluctuates with a descending trend as the filling proceeds. An implementation of swirl blades can decrease and stabilize the wall shear stress in the gating system. A special attention should be made in choosing refractory at the center stone, the horizontal runner near center stone and the vertical runner at the elbow. This is where the wall shear stress values are highest or where the exposure times are long.
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Schultz-Langerhans, Stephan [Verfasser], Christian J. [Akademischer Betreuer] Mehl, and Ingo [Gutachter] Springer. "Einfluss verschiedener Abutmentmaterialien und der adhäsiven Verbindung von zweiteiligen Abutments auf das periimplantäre Gewebe / Stephan Schultz-Langerhans ; Gutachter: Ingo Springer ; Betreuer: Christian Johannes Mehl." Kiel : Universitätsbibliothek Kiel, 2020. http://nbn-resolving.de/urn:nbn:de:gbv:8-mods-2020-00040-9.

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Dratnal, Lukáš. "Analýza vad typu nekovových vměstků v odlitcích hlav motorů a návrh metod jejich odstranění." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241731.

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Improving the quality of metal castings for serial production of automotive industry, leading to improvements in the properties of casts and their lower costs. This publication analyzes the non-metallic inclusions contained in casts of heads of internal combustion engines, molded of Nemak Czech Republic, Ltd. Tackling includes analysis of size, shape, chemical composition and hardness of the specific non-metallic inclusions. The thesis describes the purity metal holding furnaces and proposals to eliminate inclusions from metal.
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Larson, Thomas S. "Experiments Concerning the Mold Materials Used in the Production of the Copper Ingots from the Late Bronze Age Shipwreck Excavated at Uluburun, Turkey." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-2908.

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Underwater excavations of a Late Bronze Age shipwreck at Uluburun, Turkey recovered a combined 475 oxhide and plano-convex discoid copper ingots. While the hoard of ingots excavated at Uluburun brings the total number of copper ingots from the Late Bronze Age to over 1000, interestingly, only one ingot mold from the that period has been identified. Scholars have speculated over the means behind the creation of these ingots for decades, but with a relative absence of archaeological molds the most promising method of reaching any conclusions as to the types of molds used in antiquity seems to be experimentation. Experimental archaeology, has, in recent years been responsible for many breakthroughs in how the past is viewed. In the face of an overwhelming disparity of copper ingot molds from the Late Bronze Age, trials designed around testing different mold materials and casting techniques have the potential to determine, with relative certainty, how copper ingots were cast over 3000 years ago. This thesis examines the possible materials used to create copper ingot molds through a study of their prevalence in antiquity and also details experiments in which these materials were used, in concert with different casting techniques, to create copper ingots. The results of these experiments are combined with analyses of the Uluburun ingots in an effort to bring some closure to the debate surrounding copper ingot molds in the Late Bronze Age.
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Books on the topic "Ingot molds"

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Skrebt͡sov, A. M. Snizhenie raskhoda izlozhnit͡s na metallurgicheskikh predprii͡atii͡akh. Kiev: Gol. izd-vo izdatelʹskogo obʺedinenii͡a "Vyshcha shkola", 1987.

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Mogilev, V. K. Povyshenie stoĭkosti izlozhnit͡s︡ i prokatnykh valkov. Moskva: "Metallurgii͡a︡", 1986.

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Kuksa, A. V. Chugunnye stalerazlivochnye izlozhnit͡s︡y. Moskva: "Metallurgii͡a︡", 1989.

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The 2006-2011 World Outlook for Industrial Permanent Metal Molds for Gravity Casting Excluding Ingot Molds. Icon Group International, Inc., 2005.

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The 2006-2011 World Outlook for Industrial Metal Molds for Die-Casting of Metal and Metal Carbides Excluding Ingot Molds. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007-2012 World Outlook for Industrial Metal Molds for Die-Casting of Metal and Metal Carbides Excluding Ingot Molds. ICON Group International, Inc., 2006.

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The 2006-2011 World Outlook for Industrial Metal Molds for Low-Pressure Die-Casting of Metal and Metal Carbides Excluding Ingot Molds. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007-2012 World Outlook for Industrial Metal Molds for High-Pressure Die-Casting of Metal and Metal Carbides Excluding Ingot Molds. ICON Group International, Inc., 2006.

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The 2006-2011 World Outlook for Industrial Metal Molds for High-Pressure Die-Casting of Metal and Metal Carbides Excluding Ingot Molds. Icon Group International, Inc., 2005.

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Parker, Philip M. The World Market for Parts of Metalworking Converters, Ladles, Ingot Molds, and Casting Machines: A 2007 Global Trade Perspective. ICON Group International, Inc., 2006.

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Book chapters on the topic "Ingot molds"

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Weaver, Clark, Guy Morin, Larry Yenta, and Philip Meslage. "Designing Sheet Ingot Moulds to Produce Rectangular Ingots of the Desired Thickness and Width." In Essential Readings in Light Metals, 591–97. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118647783.ch72.

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Weaver, Clark, Guy Morin, Larry Yenta, and Philip Meslage. "Designing Sheet Ingot Moulds to Produce Rectangular Ingots of the Desired Thickness and Width." In Essential Readings in Light Metals, 591–97. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48228-6_72.

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Cordill, Craig. "Mold Shape Control for Direct Chill Ingot Casting." In Light Metals 2020, 887–91. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36408-3_119.

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Grandfield, John. "The Problem of Cavities in Open Mold Conveyor Remelt Ingots." In Light Metals 2016, 797–801. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119274780.ch135.

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Grandfield, John. "The Problem of Cavities in Open Mold Conveyor Remelt Ingots." In Light Metals 2016, 797–801. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48251-4_135.

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"Stirring an Aluminum Ingot Mold with a Linear Motor: Electromagnetic, Hydrodynamic, and Thermal Effects." In Single- and Multi-Phase Flows in an Electromagnetic Field: Energy, Metallurgical, and Solar Applications, 736–55. New York: American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/5.9781600865688.0736.0755.

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Conference papers on the topic "Ingot molds"

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Rakita, Milan, and Qingyou Han. "Simulation of Solidification Defects for Prediction of Dross Formation in Aluminum 5182 Remelt Secondary Ingot." In ASME 2009 International Manufacturing Science and Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/msec2009-84160.

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In aluminum recycling about 4% on average is lost on oxidation and dross. However, large percent of remelt secondary ingots (RSI) produce much more dross after remelting. It is rather surprising that no dross can be detected in the RSI, but after remelting some parts of apparently ‘healthy’ aluminum can give up to 80% of dross. This raises question how dross gets formed. Recent research proposes that the formation of dross after remelting of the RSI is closely related to the solidification process in the ingot, specifically the formation of shrinkage porosity, hydrogen porosity, and hot tearing. Under these circumstances, dross comes from oxidized surfaces of those defects. In this paper, simulations of the RSI cooling down show susceptibility of ingots towards shrinkage porosity and hot tearing, which are in accordance with experimental findings. Simulations also show that dross is more likely to form with increased temperature of the mold and increased thickness of the ingot. The only efficient solution for the problem of dross formation, however, seems to be a change in geometry of the mold.
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Mamaschew, S., M. Vossiek, I. Hüllen, and J. Schlüter. "C1.4 - A Wireless Sensor for Ingot Mold Temperature Monitoring." In SENSOR+TEST Conferences 2011. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2011. http://dx.doi.org/10.5162/sensor11/c1.4.

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Mueller, Boyd A., Allen R. Price, Kenneth S. Murphy, and Gregory B. Bell. "Land Based Turbine Casting Initiative." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-430.

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Howmet is currently conducting a Department of Energy funded Advanced Turbine Systems program, the Land Based Turbine Casting Initiative, to scale single crystal casting technological advances developed for aircraft gas turbine engines up to land based gas turbine sized components. The program encompasses technical activities in the areas of: low sulfur alloys (low sulfur melt processing treatments), casting process development (casting process, mold, core and wax), post-cast process development (mold, core, and gating removal, heat treatment, HIP, and inspection), and casting defect tolerance level establishment (freckles, off-orientation, low angle boundaries, and recrystallized grains). This presentation will highlight recent progress in the areas of low sulfur alloy, large single crystal casting process development, and 2.5D reconstruction X-ray inspection system development. Howmet has developed a melt treatment to reduce the sulfur content of the nickel-based superalloy ingot it manufactures. Sulfur contents achieved with this technique will be compared to sulfur levels present in currently available ingot. The effect of the reduced sulfur contents on oxidation performance is being investigated and will be reported. The casting process development activities are foundry experiments to determine the effect of different process factors on both grain and dimensional quality. The status of casting activities to scale aeroengine processes up to land based sized components will be presented. The 2.5D reconstruction uses X-ray metrology and multiple 2D X-ray views of the casting to reconstruct the 3D geometry of selected features. The large cross sections and long path lengths inherent in large utility land based components will be particularly challenging.
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Zhang, Huishu, Lina Sun, and Dongping Zhan. "Numerical Simulation of Solidification Structure Formation for a Large Flat Ingot during Water-cooled Mold Casting." In 5th International Conference on Advanced Design and Manufacturing Engineering. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/icadme-15.2015.290.

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Jahazi, M., A. Loucif, R. Tremblay, and C. Zhang. "Influence of Non-Uniform Temperature Distribution of the Mold on Solidifcation Behavior in Large-Sized Steel Ingots." In SteelSim 2019. AIST, 2019. http://dx.doi.org/10.33313/503/060.

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Ahmadein, M., M. Wu, and A. Ludwig. "Numerical study of the influence of mold filling conditions on the as-cast structure of Al-4 wt.% Cu ingots." In 2012 International Conference on Engineering and Technology (ICET). IEEE, 2012. http://dx.doi.org/10.1109/icengtechnol.2012.6396110.

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Fang, H. S., C. F. Li, L. L. Zheng, C. J. Zhao, and Y. S. Xie. "Numerical Study of von Mises Stress During Continuous Casting of Multicrystalline Silicon With Large-Size Grains." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-62182.

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Continuous casting is a promising technique for massive production of multicrystalline silicon (mc-Si). A theoretically advanced study is performed here to investigate the growth of mc-Si with large grain size, which has much higher photoelectric efficiency than normal mc-Si. However, the casting technique results in high thermal stresses due to its inherent features, and limits the photovoltaic applications of mc-Si because of the stress-induced dislocations. For the analysis and optimization of dislocation formation, a computer-aided method has been applied to investigate thermal stress distribution in the growing ingot of continuous casting. The regions of dislocation multiplication are evaluated by comparing von Mises stress to the critical resolved shear stress. It is found that the stress levels are especially high in the regions close to the solid and liquid (S/L) interface, and that the mold wall has a significant effect on the von Mises stress distribution if the billet were attached on the wall. The triple point is better to keep below the mould bottom to avoid its effect during the growth by certain techniques during the industrial production. Parametric studies were further performed to discuss the effects of growth conditions, such as sheath height, environment temperature, and pulling rate on the distribution of the maximum von Mises stress in the billet. The results imply theoretically that multicrystalline silicon with low stress-induced dislocation could be produced by continuous casting with strictly controlled growth parameters.
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Nallathambi, Ashok Kumar, Mohit Tyagi, Eckehard Specht, and Albrecht Bertram. "Thermal Analysis of Direct Chill Casting." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44392.

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Direct Chill (DC) casting is a semi-continuous casting technique which is used to produce aluminum rolling ingots and extrusion billets. The knowledge of temperature field is highly essential for the prediction of displacement field and hot tears. Modeling the thermal field of DC casting is a challenging task due to the liquid-solid phase transition, time-dependent domain and boundary conditions, inverse nature of secondary boundary conditions, etc. Therefore, an attempt is made to model the thermal field of DC casting using a finite element method. A temperature-based finite element model is used to capture the effect of latent heat release. A temperature-dependent heat transfer coefficient is employed to incorporate the bottom block and mold boundaries. The influence of casting speed is studied in detail. Through the proper ramping procedures, it is proved that the start-up phase sump depth and mushy length can be lowered. However, it is found that the steady-state sump parameters are independent of ramping. Further, the influences of secondary cooling profile, and melt superheat are investigated. AA1201 alloy is considered for the study.
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Reports on the topic "Ingot molds"

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Dr. Zabaras, N. J., D. Samanta, and L. Tan. A Combined Experimental and Computational Approach for the Design of Mold Topography that Leads to Desired Ingot Surface and Microstructure in Aluminum Casting. Office of Scientific and Technical Information (OSTI), October 2005. http://dx.doi.org/10.2172/850514.

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