Готові списки джерел за темами / Electroslag melt

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Добірка наукової літератури з теми "Electroslag melt"

Автор: Grafiati

Опубліковано: 28 травня 2022

Оновлено: 31 липня 2025

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Статті в журналах з теми "Electroslag melt"

Xue, Jing, Wenyun Wu, Jianbo Ma, and Haijun Huang. "Study on the fabrication of in-situ TiB2/Al composite by electroslag melting." Science and Engineering of Composite Materials 28, no. 1 (2021): 73–82. http://dx.doi.org/10.1515/secm-2021-0007.

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Abstract In-situ TiB2 particles can be synthesized via the salts-Al reaction by adding mixed K2TiF6 and KBF4 (Ti/B=1/2) salts into Al melt. In this research, a novel electroslag melting technology was proposed to synthesize TiB2 particles by the salts-Al reaction in order to reduce the reaction time period and purify the melt of composite. The effects of current of electroslag melting on the synthesis of TiB2 particles and mechanical properties of composite were investigated. The results showed that TiB2 particles could be in-situ synthesized by electroslag melting at 600 A for 15min. Compared

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Anikeev, V. V. "Electroslag heating and additional melt feed of steel ingots of semi-continuous casting." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 78, no. 12 (2023): 1049–53. http://dx.doi.org/10.32339/0135-5910-2022-12-1049-1053.

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The issues related to the continuous compensation of metal shrinkage during its crystallization are studied. Based on the evaluation of ways to reduce the size of the shrinkage shell, aimed at maintaining the liquid phase for a long time, the most effective ways to reduce the size of the shrinkage shell and reduce the head trim are selected. The influence of electroslag heating and recharge technology on the length of the shrinkage shell and the quality of the metal of the sub-shrinkage area of semi-continuously cast ingots has been studied. The study was carried out on ingots with a diameter

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Liu, Shuang, Zhu He, Cai Hui, Qiang Wang, and Baokuan Li. "Numerical simulation of the formation and the dripping of droplet in the Electroslag Remelting process." Thermal Science 21, no. 3 (2017): 1241–50. http://dx.doi.org/10.2298/tsci141117070l.

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Based on the magnetohydrodynamic module of the commercial computational fluid dynamics software FLUENT, a 3-D mathematical model was developed to describe the multi-field coupling phenomenon in the electroslag remelting process. The model predicted value is in good agreement with the experimental measurements. The simulation results show that, during the melt dripping process, the resistance of the electroslag remelting system is decreasing while the current density and velocity, as well as the temperature are increasing gradually. The maximum value of current density, electromagnetic force, a

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Tong, Wenjie, Wanming Li, Ximin Zang, Huabing Li, Zhouhua Jiang, and Dejun Li. "A Comprehensive Mathematical Model of Electroslag Remelting with Two Series-Connected Electrodes Based on Sequential Coupling Simulation Method." Metals 10, no. 5 (2020): 658. http://dx.doi.org/10.3390/met10050658.

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A comprehensive mathematical model of electroslag remelting with two series-connected electrodes (TSCE-ESR) was constructed based on sequential coupling method. The influence of droplet effect on electroslag remelting process (ESR) was considered in this model. Compared with one-electrode electroslag remelting (OE-ESR), the multi-physics field, droplet formation and dripping behavior, and molten metal pool structure of TSCE-ESR process were studied. The results show that during the process of TSCE-ESR, the proximity effect of the electrodes suppresses the skin effect, and Joule heat is concent

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Ju, Jian-Tao, Kun He, Wen-Ke Guo, Xiao-Mei He, and Yuan Zhou. "Effect of TiO₂ on electrical conductivity, viscosity, and melt structure of electroslag remelting slag." Metallurgical Research & Technology 121, no. 4 (2024): 412. http://dx.doi.org/10.1051/metal/2024054.

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Electrical conductivity and viscosity of electroslag being crucial parameters. Using a high-temperature physical property measuring instrument, the effects of different TiO2 concentration and temperatures on electroslag conductivity and viscosity were investigated. With an increase from 1733 K to 1823 K resulting in elevated electrical conductivity (1.04 to 1.89 S · cm−1) and reduced viscosity (0.14 to 0.09 Pa · s). This is because the higher the temperature is, the more the polymer in the slag is depolymerized. Similarly, as TiO2 content increased from 7% to 16%, the electrical conductivity i

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Fedyaev, Vladimir, Petr Osipov, Alexey Belyaev, and Liliya Sirotkina. "Electro-slag heating of parts surfaces by welding of protective coatings by the method of immersion." MATEC Web of Conferences 298 (2019): 00145. http://dx.doi.org/10.1051/matecconf/201929800145.

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One of the effective methods of surfacing protective coatings on large areas, as well as the formation of permanent joints is the method of immersion (dipping) of parts into the melt. In order to increase the productivity of this method, the quality of surfacing is proposed to heat the work surfaces of the parts with an electroslag method. The rational regimes for its realization are determined by calculation. A mathematical model is proposed for heating the contacting layers of a solid body, slag and melt, taking into account the Joule heat released during the passage of an electric current.

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Karimov, Kamolkhon, Nodir Turakhodjaev, Azamat Akhmedov, and Shukhrat Chorshanbiev. "Mathematical model for producing machine parts." E3S Web of Conferences 264 (2021): 04078. http://dx.doi.org/10.1051/e3sconf/202126404078.

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In the article, the object of research is the development of a technology for improving the operational properties of cast parts from steel 45, obtained by the method of electroslag remelting. Based on the research results, the modes of heat treatment of the shaft-gear part in an aqueous medium water-oil, heat treatment to increase the service life of the product, and energy-saving melting technology by the method of electroslag remelting were developed. Particular attention is paid to the development and analytical implementation of the mathematical model of the developed technologies by the

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Selivorstov, V., T. Selivorstova, K. Zelenskyi та L. Ivanova. "Calculation of the sizes of the overflow part of ingots from steels 40ХЛ and Х12МЛ at application of gas-dynamic influence and electroslag heating". System technologies 3, № 140 (2022): 87–103. http://dx.doi.org/10.34185/1562-9945-3-140-2022-09.

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Анотація:

The results of analytical research on the use of methods for calculating the size of inflows of cylindrical casts from steels 40ХЛ and Х12МЛ weighing 200 - 16000 kg and a diameter of 0.25 - 0.7 m, hardening in metal form (mold) in electroslag heating of the melt and creating atmospheric gas pressure in the overflow part. Schemes of construction of the corresponding device and realization of technology are resulted. The use of the refrigerator design in the form of a metal housing with an insert of refractory material, graphite electrodes and a flux insert, which works on the principle of float

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Kuzmichev, Evgenii N., Pavel V. Igumnov, Vladimir Kancherovich Khe, and Andrei E. Skiruta. "Investigation of Influence of Magneto-Hydrodynamic Processes on Structure Formation and Alloying of Steels by Electroslag Remelting." Materials Science Forum 1037 (July 6, 2021): 264–72. http://dx.doi.org/10.4028/www.scientific.net/msf.1037.264.

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This article discusses the issue of increasing the efficiency of alloying low-carbon steel during electroslag remelting with fluxes obtained on the basis of multicomponent mineral raw materials. The process of transition of an alloying element, from molten slag to metal, was investigated in various operating modes of the slag system, where the system itself experienced various degrees of hydrodynamic impact. A model is proposed and described, showing the uneven distribution of the alloying element in the metal melt. The composition and structure of the obtained alloys are investigated.

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K.M Kelkar, J. Mok, S. V. Patankar, and A. Mitchell. "Computational modeling of electroslag remelting processes." Journal de Physique IV 120 (December 2004): 421–28. http://dx.doi.org/10.1051/jp4:2004120048.

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Alloys used for the production of rotating components in aeroengines and land-based turbines are subject to stringent requirements to ensure absence of melt-related defects such as inclusions and segregation. Accordingly, the production of the superalloys alloys used in these applications involves multiple remelting stages, each of which plays a distinct role in ensuring that the final ingot is defect-free. Because of the complexity of these processes, high-temperature environments, and high initial and operating costs, trial-and-error based approaches for process design are inadequate. Comput

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Більше джерел

Дисертації з теми "Electroslag melt"

Кайдаш, Д. В. "Дослідження впливу термічної обробки на властивості особливо високоякісних сталей". Master's thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/86665.

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Анотація:

Актуальність роботи пов’язана з дослідженням впливу термічної обробки на корозійну стійкість, пластичні характеристики і ударну в'язкість особливо високоякісних сталей, зокрема сталь виготовлену електрошлаковим переплавом 25Х17Н2Б-Ш, застосовувану для виготовлення складно навантажених деталей в судновому, атомному машинобудуванні, які сприймають значні різноспрямовані динамічні навантаження, наприклад, кріплення, та працюють в агресивних середовищах. В результаті цього підвищується строк експлуатації даного виробу, що значно може скоротити витрати в подальшому на його ремонти або заміну. Над

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Частини книг з теми "Electroslag melt"

Detrois, Martin, and Paul D. Jablonski. "Melt Parameters and Resulting Characteristics in Laboratory-Scale Electroslag Remelting." In Proceedings of the 9th International Symposium on Superalloy 718 & Derivatives: Energy, Aerospace, and Industrial Applications. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89480-5_17.

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Тези доповідей конференцій з теми "Electroslag melt"

Yang, Zhongjun, and Huaguang Zhang. "Prediction of melt rate of vibrating-electrode Electroslag Remelting process using artificial neural network." In 2015 5th International Conference on Information Science and Technology (ICIST). IEEE, 2015. http://dx.doi.org/10.1109/icist.2015.7288933.

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Stovpchenko, G., L. Medovar, L. Lisova, D. Stepanenko, and D. Togobitskaya. "Prognostic models for electroslag remelting process and slag engineering." In 12th International Conference of Molten Slags, Fluxes and Salts (MOLTEN 2024) Proceedings. Australasian Institute of Mining and Metallurgy (AusIMM), 2024. http://dx.doi.org/10.62053/tbyl4271.

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Classical electroslag remelting of consumable electrodes is a drop-by-drop melt feeding through a slag layer into a renewing molten metal bath, slowly solidifying into a homogeneous, dense, defect-free ingot in a copper water-cooled mould. The new look at the additive nature of the electroslag remelting (ESR) process in a protective atmosphere allowed us to formulate the principles of a comprehensive thermodynamic-based model that can predict dynamic changes in slag and metal composition at certain ingot remelting. The model considers drastically different slag-to-metal mass ratios at the begi

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Ahn, Seokyoung, Joseph J. Beaman, Rodney L. Williamson, and David K. Melgaard. "Model-Based Control of Electroslag Remelting Process Using Unscented Kalman Filter." In ASME 2008 Dynamic Systems and Control Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/dscc2008-2148.

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Анотація:

Electroslag Remelting (ESR) is used widely throughout the specialty metals industry. The process generally consists of a regularly shaped electrode that is immersed a small amount in liquid slag at a temperature higher than the melting temperature of the electrode. Melting droplets from the electrode fall through the lower density slag into a liquid pool constrained by a crucible and solidify into an ingot. High quality ingots require that electrode melt rate and immersion depth be controlled. This can be difficult when process conditions are such that the temperature distribution in the elect

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Detrois, Martin, Paul D. Jablonski, and Jeffrey A. Hawk. "Martensitic Steel CPJ7 for Improved High-Temperature Creep Capabilities in Power Plants." In AM-EPRI 2019, edited by J. Shingledecker and M. Takeyama. ASM International, 2019. http://dx.doi.org/10.31399/asm.cp.am-epri-2019p0104.

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Abstract A creep resistant martensitic steel, CPJ7, was developed with an operating temperature approaching 650°C. The design originated from computational modeling for phase stability and precipitate strengthening using fifteen constituent elements. Approximately twenty heats of CPJ7, each weighing ~7 kg, were vacuum induction melted. A computationally optimized heat treatment schedule was developed to homogenize the ingots prior to hot forging and rolling. Overall, wrought and cast versions of CPJ7 present superior creep properties when compared to wrought and cast versions of COST alloys fo

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Liu, Yu, Tao Han, Yezheng Li, et al. "Development of Large Diameter Heavy Wall Seamless Tee Fitting of WPHY-80 Grade for Low Temperature Pipeline Station Application." In 2018 12th International Pipeline Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipc2018-78748.

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This paper describes the development of large diameter heavy wall seamless tee fitting of WPHY-80 grade for low temperature pipeline station application. Steel tees with thicker wall generally tend to have low fracture toughness either in pipe body or in weld joint and low weldability. Therefore, improvement of fracture toughness and weldability are particularly important with respect to development of higher strength and thicker wall seamless tee fittings. For the requirement of the China-Russia Eastern Gas Pipeline Project, WPHY-80 large diameter, seamless heavy wall reducing outlet tees wer

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Mei-fang, Chen, Cao Sheng-qiang, and Tao Zhi-yong. "Study on Forging Cracks and Manufacturing Process of 022Cr19Ni10N Austenitic Stainless Steel Rod Travel Housing Forging for Control Rod Drive Mechanism." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-67286.

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Анотація:

In order to gain high strength, fine grain size, stronger anti-corrosion property, and especially low permeability, the material 022Cr19Ni10N was chosen to manufacture the Rod Travel Housing Forging (RTHF) for Control Rod Drive Mechanism (CRDM). But, cracks were found in some forgings failing to meet the requirements of ultrasonic testing (UT). The causes of the forging cracks of this austenitic stainless steel forging were investigated by means of metallography, scanning electron microscopy (SEM) and other experimental methodology. The results indicated that the second δ-ferrite phase leads t

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