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Journal articles on the topic 'Metal scraps'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Li, Yifeng, Xunpeng Qin, Zhenyuan Zhang, and Huanyu Dong. "A robust identification method for nonferrous metal scraps based on deep learning and superpixel optimization." Waste Management & Research: The Journal for a Sustainable Circular Economy 39, no. 4 (2021): 573–83. http://dx.doi.org/10.1177/0734242x20987884.

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End-of-life vehicles (ELVs) provide a particularly potent source of supply for metals. Hence, the recycling and sorting techniques for ferrous and nonferrous metal scraps from ELVs significantly increase metal resource utilization. However, different kinds of nonferrous metal scraps, such as aluminium (Al) and copper (Cu), are not further automatically classified due to the lack of proper techniques. The purpose of this study is to propose an identification method for different nonferrous metal scraps, facilitate the further separation of nonferrous metal scraps, achieve better management of r

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2

Lee, Dong Won, Hak Sung Lee, Shun Myung Shin, and Jei Pil Wang. "Nickel Recycling by Magnesium Reaction of Fe-Ni Alloy Scrap." Advanced Materials Research 1025-1026 (September 2014): 519–24. http://dx.doi.org/10.4028/www.scientific.net/amr.1025-1026.519.

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Ni recycling from Fe-Ni alloy scrap was successfully performed by Mg reaction and distilling process. Ni component in Fe-Ni alloy scraps dissolve selectively in molten magnesium metal and then vacuum distilling was applied to remove Mg from Mg-Ni liquid. Above 1,073K in dissolving stage, more than 99% Ni from scraps was recovered and under the distilling process at 1,273K, 10-5 torr, the high quality Ni with 99.5% could be obtained. This study suggests the recycling process of Ni in Fe-Ni scrap with the combination of Mg reaction and distilling process.

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3

Kim, Chan Wook, and Hang Goo Kim. "Study on Automated Scrap-Sorting by an Image Processing Technology." Advanced Materials Research 26-28 (October 2007): 453–56. http://dx.doi.org/10.4028/www.scientific.net/amr.26-28.453.

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In this study, an automated scrap-sorting system using image processing technology has been designed and examined to automatically sort out specified materials from a mixture, especially Cu and other non-ferrous metal scraps from a mixture of iron scraps. In the functional tests of the system, its efficiency in the separation of Cu scraps from its mixture with Fe ones reaches to 75 % or more at a conveying speed of 20 m/min., and thus it is expected that the system can be commercialized in the industry of shredder makers if an automated sorting system of high speed is realized.

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4

Argaditia Mawadati, Anak Agung Putu Susastriawan, Kartinasari Ayuhikmatin Sekarjati, et al. "Pengenalan Produksi Bersih Untuk Perbaikan Penanganan Limbah Industri Cor pada IKM Wintolo." SEWAGATI: Jurnal Pengabdian Masyarakat Indonesia 3, no. 2 (2024): 100–105. http://dx.doi.org/10.56910/sewagati.v3i2.1543.

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IKM Wintolo is a small home-based business engaged in the metal casting industry. In the production process, this IKM produces waste in the form of scraps of metal and metal dust which is scattered on the production floor. IKM owners still have not implemented clean production in their businesses because of the limited knowledge possessed by owners and workers. Therefore, IST AKPRIND Industrial Engineering lecturers provide guidance to the owners and workers of IKM Wintolo. From the results of this community service there has been an increase in understanding regarding clean production practic

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Park, Seung-Yeon, J. H. Kim, S. J. Seo, J. S. On, and K. M. Lim. "Fabrication of High-Strength Gray Cast Iron Using Permanent Magnet Scrap." Archives of Metallurgy and Materials 62, no. 2 (2017): 1113–17. http://dx.doi.org/10.1515/amm-2017-0162.

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AbstractIn this study, we have developed the manufacturing technology for high strength gray cast irons by using the spent permanent magnet scraps. The cast specimen inoculated by using a spent magnet scraps showed the excellent tensile strength up to 306MPa. This tensile strength value is 50MPa higher than that of the specimen cast without inoculation, and is similar to that of the specimen inoculated by using the expensive misch-metal. These superior mechanical properties are attributed to complex sulfides created during solidification that promote the formation and growth of Type-A graphite

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Ahmad, Farhan, Akhyar, and Ali Masri. "Experiment on Hardness and Impact Strength of Recycled Aluminum Alloys by Metal Casting Process." Materials Science Forum 961 (July 2019): 65–72. http://dx.doi.org/10.4028/www.scientific.net/msf.961.65.

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In this present work, the effects of recycled aluminum scraps on the impact and hardness properties and microstructures with a melting process are studied. The method was conducted to determine an impact toughness by Charphy pendulums; hardness materials by Vickers's test; and chemical composition by spectroscopy. Four types of aluminum scraps have been recycled using a metal casting process. They are beverage cans, aluminum profile bar waste, gasoline engine piston, and scrap pans. The results show that the maximum hardness obtained is 54.13 VHN on the material of the gasoline engine piston.

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Gasperikova, Erika, J. Torquil Smith, H. Frank Morrison, Alex Becker, and Karl Kappler. "UXO detection and identification based on intrinsic target polarizabilities — A case history." GEOPHYSICS 74, no. 1 (2009): B1—B8. http://dx.doi.org/10.1190/1.2997419.

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Electromagnetic induction data parameterized in time-dependent object intrinsic polarizabilities can discriminate unexploded ordnance (UXO) from false targets (scrap metal). Data from a cart-mounted system designed to discriminate UXO of [Formula: see text] in diameter are used. Discriminating UXO from irregular scrap metal is based on the principal dipole polarizabilities of a target. Nearly intact UXO displays a single major polarizability coincident with the long axis of the object and two equal, smaller transverse polarizabilities, whereas metal scraps have distinct polarizability signatur

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8

P., A. Ukachi, and E. Ojaomo K. "Aluminium Alloy Scraps as Useful Raw Material in Component Manufacturing and the Attendant ILL Effects." International Journal of Trend in Scientific Research and Development 2, no. 6 (2018): 556–60. https://doi.org/10.31142/ijtsrd18472.

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Scraps are produced over a period of time due to errors such as mismatch porosity, poor finishing and out of tolerance. More scraps are prone to be produced from one particular metal and alloy more than some others. This paper looks at the importance of scraps especially aluminum alloy scraps and compares it with the chemical composition of finished aluminum products. It also examines the composition of imported component aluminum alloys and chemical composition of aluminum alloys recovered from scraps. The result of chemical composition of both using atomic spectrometer showed very close simi

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9

PHAKVISETH, Pem. "Analysis of Electrical Properties of Copper Bars Obtained from Electrical Waste." Souphanouvong University Journal Multidisciplinary Research and Development 11, no. 1 (2025): 36–44. https://doi.org/10.69692/sujmrd110136.

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The purpose of this study is to study the copper refining process, wasted copper scrap, and the physical and electrical properties of melted metallic copper. At the same time, it is being researched as a means of promoting and developing the copper sector for individuals who choose to pursue additional studies. 900°C, 1030°C, 1040°C, 1050°C, and 1080°C with a burning time of 30 minutes to 1 hour, take the sample that melts into a liquid metal to form a copper ingot, then take the copper ingot sample to analyze the density, the surface of the metal ingot, the chemical composition of the copper

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10

Baah, Owusu Panin Kwame. "Innovative Use of the Pointillism Technique for the Production of Scrap Metal Mural Art of Kofi Annan for Environmental Sustainability." Journal of Innovations in Science and Technology 1, no. 1 (2023): 60–78. http://dx.doi.org/10.60129/jinces.v1i1.00523.

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Scrap metals have been an environmental nuisance blocking the pathways of water and leading to various forms of environmental pollution at Anloga in the Kumasi Metropolis of Ghana. This scrap metal art project was aimed at creatively reusing and re-purposing scrap metals from various construction, dump sites and households for the creation of a metal artwork as a step in reviving scrap metal art for environmental sustainability. Over the years, murals have been made using various techniques in painting and sculpture. The studio-based research design that employs the qualitative descriptive met

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11

Yuksel, C., O. Tamer, E. Erzi, et al. "Quality Evaluation of Remelted A356 Scraps." Archives of Foundry Engineering 16, no. 3 (2016): 151–56. http://dx.doi.org/10.1515/afe-2016-0069.

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AbstractA356 is one of the widely used aluminium casting alloy that has been used in both sand and die casting processes. Large amounts of scrap metal can be generated from the runner systems and feeders. In addition, chips are generated in the machined parts. The surface area with regard to weight of chips is so high that it makes these scraps difficult to melt. Although there are several techniques evolved to remedy this problem, yet the problem lies in the quality of the recycled raw material. Since recycling of these scrap is quite important due to the advantages like energy saving and cos

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12

Okubo, Toshihiro, Yuta Watabe, and Kaori Furuyama. "Export of Recyclable Materials: Evidence from Japan." Asian Economic Papers 15, no. 1 (2016): 134–48. http://dx.doi.org/10.1162/asep_a_00414.

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In this paper, we study the waste haven hypothesis, which predicts that waste materials will be exported from high-income developed countries with stringent environmental regulations to developing countries with less rigorous environmental protection. Using data on Japanese export of recyclable waste resources (plastic waste, waste paper, iron and steel scrap, and nonferrous metal scraps), we find evidence from our econometric analysis that Asian countries provide a waste haven for Japan. In particular, Japan exports waste materials to Asian countries with low per capita incomes and large mark

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13

Baffari, Dario, Gianluca Buffa, and Livan Fratini. "Influence of Process Parameters on the Product Integrity in Friction Stir Extrusion of Magnesium Alloys." Key Engineering Materials 716 (October 2016): 39–48. http://dx.doi.org/10.4028/www.scientific.net/kem.716.39.

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Friction Stir Extrusion is an innovative direct-recycling technology for metal machining chips. During the process a specifically designed rotating tool is plunged into a cylindrical matrix containing the scraps to be recycled. The stirring action of the tool prompts solid bonding related phenomena allowing the back extrusion of a full dense rod. This process results to be particularly relevant because allows the reuse of the scrap without any previous treatment. Experiments have been carried out in order to investigate the influence of the process parameters on the extrudes quality and a nume

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14

Hasan, Nuray, and Deyan Gradinarov. "Defining parameters for control of extruding wire by friction process." MATEC Web of Conferences 287 (2019): 06003. http://dx.doi.org/10.1051/matecconf/201928706003.

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Friction stir extrusion is an innovative direct-recycling technology for metal machining chips. During the process a specifically designed rotating tool is plunged into a cylindrical matrix containing the scraps to be recycled. The stirring action of the tool prompts solid bonding related phenomena allowing the back extrusion of a full dense rod. This process results to be particularly relevant because allows the reuse of the scrap without any previous treatment. Experiments have been carried out in order to investigate the influence of the process parameters on the extrudes quality and a nume

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15

Zhang, Li Feng, and Tiphaine Dupont. "State of the Art in the Refining and Recycling of Magnesium." Materials Science Forum 546-549 (May 2007): 25–36. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.25.

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In order for magnesium to continue to grow, all forms of magnesium scrap need to be recycled – for both economic and environmental reasons. This paper extensively reviews the techniques for the refining and recycling of magnesium. Removal of inter-metallic elements and inclusions through gas fluxing, filtration and other methods are summarized. Flux refining technology is the old but most common method to purify magnesium metal. Fluxless refining technologies are under development, such as salt furnace technology, inert gas and filter refining, vacuum distillation refining, and hydrometallurgi

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16

Sun, Jun Sheng, Hao Meng Wang, En Li Jiao, and Guo Qiang Zhang. "Study on Alloy Particles and its Deposited Metal Microstructure and Properties." Advanced Materials Research 750-752 (August 2013): 748–51. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.748.

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A technology conception of producing filled metal particles which use steel scraps of steelworks as the main raw materials for welding was proposed in this paper. It provides a new resource for raw materials which are used to process welding material and the steel scraps are used sufficiently, reasonably and in high value-added at the same time. According to the wearing conditions of loader when it exploits and loads the river sand, the Fe-Cr-C alloy particles were designed. The technology of medium frequency induction furnace - centrifugal atomizer was used to get the alloy particles in 0.1~5

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17

Kim, Myungsuk, Namhun Kwon, Soong Ju Oh, et al. "Electrochemical Process Optimization for Extracting and Recycling the Rare Metals from Waste Scrap Containing Nickel and Chromium." ECS Meeting Abstracts MA2025-01, no. 26 (2025): 1461. https://doi.org/10.1149/ma2025-01261461mtgabs.

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Nickel and chromium are essential materials utilized in various industries, including secondary batteries, stainless steel production, plating, and surface treatments. The increasing demand for high-nickel cathode materials, a crucial component of secondary batteries, has further underscored their significance. However, the supply chain for these metals is experiencing considerable instability due to export restrictions imposed by major resource-rich countries, stringent environmental regulations, and the high costs associated with smelting and processing. As a result, extensive research is be

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18

Tian, Qinghua, Xiangdong Gan, Fuhui Cui, Dawei Yu, and Xueyi Guo. "Selective Extraction of Ni from Superalloy Scraps by Molten Mg-Zn." Metals 11, no. 6 (2021): 993. http://dx.doi.org/10.3390/met11060993.

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Bearing significant concentrations of high value and critical metals, superalloy scraps require comprehensive recycling for metal reclamation. In this study, nickel-based superalloy was treated with molten Mg-Zn for the selective extraction of nickel. The influence of heating temperature, the molar ratio of Mg to Zn in the molten metal, Mg-Zn/superalloy mass ratio, and heating time on metal extraction were investigated. Using the heating temperature of 800 °C, the Mg/Zn molar ratio of 9/1, the Mg-Zn/superalloy mass ratio of 5/1, and heating time of 240 min, the extraction rate of 97.1% was ach

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19

NAKAHIRO, Yoshitaka. "Recent Development on Recycling Technologies of Precious Metal Scraps." RESOURCES PROCESSING 44, no. 1 (1997): 9–15. http://dx.doi.org/10.4144/rpsj1986.44.9.

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20

Sugiyama, Sumio, Meng Yi, and Jun Yanagimoto. "Refining and Recycling of Metal Scraps by Semisolid Processing." Solid State Phenomena 192-193 (October 2012): 494–99. http://dx.doi.org/10.4028/www.scientific.net/ssp.192-193.494.

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In this study, the authors propose a new refining process different from the rheorefining (a screen method) or the melt zone method. This new refining process is based on the gradient of solidification speed of the molten metal poured into a container. The molten metal in the cylindrical container firstly solidifies to columnar crystals from the wall of the container and a liquid phase gradually changes to semisolid state and progresses to the central portion of the container. After an intended semisolid state is achieved, a backward extrusion is carried out to extract the liquid phase compone

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21

SUGIYAMA, Sumio, Tadahisa MERA, and Jun YANAGIMOTO. "509 Reproduction of Minute Metal Scraps by Semisolid Processing." Proceedings of the Materials and processing conference 2009.17 (2009): _509–1_—_509–2_. http://dx.doi.org/10.1299/jsmemp.2009.17._509-1_.

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22

Tokarski, Tomasz, Mateusz Wędrychowicz, and Marcel Wiewióra. "Light Metals Chips Recycling by Plastic Consolidation." Key Engineering Materials 641 (April 2015): 24–29. http://dx.doi.org/10.4028/www.scientific.net/kem.641.24.

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In this work, hot extrusion of light metal scraps as a new way of plastic consolidation will be presented. This kind of material recovering is a promising alternative for conventional recycling processes. Nowadays discards from machining of semi-finished products are being recycled throughout re-melting processes. However, due to its significant susceptibility to oxidation most of the chips and scraps are burnt during the melting process. It has been already recognized that aluminum losses connected with this operation can reach from 40% to 50%. A technology that has been presented in this wor

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23

Chate, Ganesh R., Raviraj M. Kulkarni, Manjunath Patel Gowdru Chandrashekarappa, et al. "Synthesis and Characterization of Fe2O3 Nanoparticles Reinforced to Recycled Industrial Aluminium Scrap & Waste Aluminium Beverage Cans for Preparing Metal Matrix Nanocomposites." Frattura ed Integrità Strutturale 16, no. 60 (2022): 229–42. http://dx.doi.org/10.3221/igf-esis.60.16.

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Increased material demand in all sectors is primarily due to exponential growth in population to fulfill human needs and comforts. Recycling of collected aluminium beverage cans and Al 6061 alloy scraps from industries ensures energy savings with reduced environmental problems in fabricating composite parts economically. The iron oxide (α-Fe2O3) nanoparticles were prepared by precipitation method using ferric chloride and ammonia as a precursor. The prepared nanoparticles were characterized by using Transmission Electron Microscope (TEM), X-Ray Diffraction (XRD) and Fourier Transform Infrared

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24

Abdulsalam, S., A. D. Bajoga, and H. A. Dala. "Impact of Metals Scrap Yard on the Presence of some Heavy Metals Concentration within Gombe Metropolis, Gombe State, Nigeria, using Atomic Absorption Spectrometry." Nigerian Journal of Physics 33, no. 2 (2024): 115–22. http://dx.doi.org/10.62292/njp.v33i2.2024.246.

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The Metal scrap yards play a crucial role in the recycling and reuse of metals, contributing significantly to the economy and conservation of natural resources. However, the processing and storage of metal scraps can lead to the release of heavy metals such as lead, chromium and cadmium, into the environment. The presence of heavy metals in metal scrap yards poses a significant risk to nearby communities, workers and the environment, also causing air and water pollution, soil contamination, and health problem. Study of impact of metals scrap yard on the presence some of some heavy metals in so

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Faitli, József, Ádám Rácz, Márton Vitányi, and Sándor Nagy. "APPLICATION OF A GAS-SOLID FLUIDISED BED SEPARATOR FOR ALUMINIUM-COPPER SCRAP RECYCLING." Volume 24 - September 2023, no. 24 (July 21, 2023): 13–22. http://dx.doi.org/10.31025/2611-4135/2023.18303.

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The EUbs circular economy concept necessitates the recycling of material streams used once or multiple times into the productionb consumption cycle again and again. The commonly known problem b that the number of recycling cycles of plastics is limited drives the economy towards metal usage again, because metal recycling cycles are limitless. Therefore, the efficient and economic separation of mixed aluminium and copper scraps in the 30b100 mm particle size range is an important issue for our society. In this study fundamental and applied research was carried out for the application of a gas-s

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26

Xie, Yitong, Lixia Shi, Yaqiong Li, Zhixiang Fu, and Lifeng Zhang. "Comprehensive utilization of valuable elements in brass alloy rods production through recovery of copper scraps." Metallurgical Research & Technology 120, no. 2 (2023): 207. http://dx.doi.org/10.1051/metal/2022106.

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Brass alloys that meet ASTM C36000 standard were prepared from scrap copper alloys in this study. The mechanical properties of these brass alloy products were measured, and the results showed that yield strength, elongation, tensile strength, and hardness were respectively 164 N/mm2, 37.7%, 383 N/mm2, and 87.7 HV. The flow of elements in the brass alloy production process was also investigated using thermodynamic calculations and microstructural observations. It was discovered that elements such as Al, Mg, Pb, and Cd were easily oxidized as slag; Cd was easily volatilized at high temperatures,

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27

Ah-lung, Guillaume, Ayyoube Barchid, Brahim Boubeker, et al. "Effects of Melting/Casting and Thermal Treatment Surrounding Gas Phase Composition on the Properties of a Low-Alloyed Steel." Metals 14, no. 12 (2024): 1317. http://dx.doi.org/10.3390/met14121317.

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This study aims to provide insights into the experimental conditions used during the melting/casting process and subsequent thermal treatments of low-alloy steels, particularly regarding recycled scrap metals. As sustainable practices in metallurgy gain importance, optimizing scrap metal recycling is crucial for producing steel grades with desired chemical compositions, microstructures, and physical properties. Understanding these conditions is vital for enhancing the efficiency and quality of steel production from recycled materials. This study emphasizes the critical role of specific experim

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Osmanlioglu, Ahmet Erdal. "Characterization of Radiological Hazardous Effects of Metal Scraps in Turkey." Journal of Hazardous, Toxic, and Radioactive Waste 17, no. 2 (2013): 153–55. http://dx.doi.org/10.1061/(asce)hz.2153-5515.0000140.

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HATA, Kota, and Masaharu TAKEUCHI. "The Recycling Techniques for Precious Metal Scraps from Plating Workplace." Journal of The Surface Finishing Society of Japan 73, no. 6 (2022): 288–94. http://dx.doi.org/10.4139/sfj.73.288.

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Sahan, Yusnimar, Dewi Lusi Jayanti, and Nurul Dwi Anggriana. "Utilization of electronic scraps on making a concrete brick." MATEC Web of Conferences 276 (2019): 01024. http://dx.doi.org/10.1051/matecconf/201927601024.

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Electronic scraps is becoming one of the environment issues globally, including in Indonesia. Innovation in the electronic technologies is growing very rapidly (printer, computers, mobile phones, etc.) and consumers tend to replace électronic goods in a relatively short time. However, the development of electronic tools is not comparable with the invention of its recycling technology, so landfill becomes the first choice to over come the number of electronic scraps that are increasing every year. Most of the electronic scraps are made from ± 30-65% engineering thermoplastics and the rest are m

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Bai, Yaocai, and Ilias Belharouak. "Solvent-Based Electrode Recovery Toward Sustainable Direct Recycling of Lithium-Ion Batteries." ECS Meeting Abstracts MA2022-02, no. 3 (2022): 341. http://dx.doi.org/10.1149/ma2022-023341mtgabs.

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Lithium-ion batteries (LIBs) are dominating in the fields of consumer electronics and electric vehicles. Given the high demand and fast-growing market of LIBs, manufacturing of LIBs is ramping up dramatically, so are the electrode scraps and end-of-life batteries. One promising recycling approach is to directly recover electrode materials like NMC and graphite with useful morphology and comparable electrochemical performance, which will substantially reduce the battery costs, mitigate both energy and environmental impacts, as well as secure the battery supply chain. However, electrode material

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Mr., Sumit Mishra, Kushwah Anand, M.K.Gaur, and Singh Pushpendra. "Scrap Preheating using Waste Heat in Metal Casting." Journal of Thermal Energy Systems 3, no. 3 (2018): 36–43. https://doi.org/10.5281/zenodo.2653334.

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In the present time in the world energy crisis is increasing exponentially, it becomes necessary to conserve energy required in metal casting. While casting, the molten metal is poured into the mould cavity and then left undisturbed for cooling and solidification. Large amount of energy is dissipated during this process as a waste heat into the atmosphere. Even the knocked out casting left for cooling down in the shop floor has heat energy stored in it.If this waste heat can be utilized for pre-heating of scraps (raw material) by any suitable arrangement then lot of energy wastageduring solidi

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Fironda, Sabina Andreea, Ioana Cristina Badea, Marian Burada, Radu-Robert Piticescu, and Lidia Licu. "Recovery of Neodymium from Spent Hard Disk Drivers by Microwave Treatment and Magnesium Liquid Extraction." Magnetism 5, no. 1 (2025): 3. https://doi.org/10.3390/magnetism5010003.

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Rare earth elements (REEs) possess unique physical and chemical properties that render them indispensable in various industries, including electronics, energy production and storage, hybrid and electric vehicles, metallurgy, and petro-chemical processing. The criticality of REE underscores the need to enhance the efficiency of primary resource extraction and promote circularity through increased recycling from secondary sources. This paper provides a brief overview of REE recovery from secondary sources, particularly waste from electronic and electric equipment (WEEE). The discussion encompass

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Nwigbo, Michael N., David H. Lebari, Gbenenee B. Robinson, and Ikata Ipeghanimuneen. "Design, Fabrication and Performance Evaluation of a Dual Powered Crucible Furnace for Aluminium Cans Recycling." INTERNATIONAL JOURNAL OF ENGINEERING AND MODERN TECHNOLOGY 8, no. 3 (2022): 37–51. http://dx.doi.org/10.56201/ijemt.v8.no3.2022.pg37.51.

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There is great need for metal scraps recycling and commercialization in Nigeria owning to the abundant and indiscriminate disposal of metal scraps which constitute health hazard to citizens through the blockage of drainage systems, causing erosion and flooding, defaces the aesthetics of the cities through mounting heaps of metallic waste. This research work designed and fabricated a manually operated dual powered tilting crucible furnace suitable for laboratory and workshop practice for recycling of aluminium cans and scraps and other low melting metals and alloys. It consists of a cylindrical

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Hai Thinh, Nguyen Trung. "SELECTIVE AND EFFECTIVE RECOVERY OF COPPER FROM PRINTED CIRCUIT BOARD SCRAPS." Vietnam Journal of Science and Technology 55, no. 5B (2018): 217. http://dx.doi.org/10.15625/2525-2518/55/5b/12229.

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Copper was recovered from printed circuit boards (PCB) scraps by the combined mechanical and electrochemical method using 7M nitric acid as leaching agent followed by metal electrodeposition electrolyzing leachate. The metal recovery selectivity and effectivity were investigated through determination of electrodeposition potentials based on anodic stripping voltammetry (ASV). Linear sweep voltammetry (LSV) and cyclic voltammetry (CV) techniques were also used to reveal the optimized electrolysis parameters. The influence of various process parameters such as current density, pH, and temperatur

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Koichi, Kamada, Toshiaki Sasaki, and Ikuo Takahashi. "Properties of Thermal Spray Coating Using Grinded Scraps of Hard metal." Journal of the Japan Society of Powder and Powder Metallurgy 46, no. 4 (1999): 427–31. http://dx.doi.org/10.2497/jjspm.46.427.

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Zhou, Xianyan, Zhili Hu, Yijun Tao, Xunpeng Qin, and Lin Hua. "Failure mechanisms and structural optimization of shredder hammer for metal scraps." Chinese Journal of Mechanical Engineering 29, no. 4 (2016): 792–801. http://dx.doi.org/10.3901/cjme.2016.0415.053.

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38

Park, Hyungkyu. "Survey on the Recycling of Domestic Commercial Non-ferrous Metal Scraps." Journal of the Korean Institute of Resources Recycling 22, no. 6 (2013): 81–86. http://dx.doi.org/10.7844/kirr.2013.22.6.81.

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Soedarsono, Johny Wahyuadi, Vita Astini, Fahmi Fazri, et al. "Effect of Carbon Content in Direct Reduction Process of Limonite Iron Oxide to Produce Pig Iron Substitute for Thin Wall Ductile Iron Process." Advanced Materials Research 887-888 (February 2014): 281–86. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.281.

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Quality molten metal needed to produce thin wall ductile iron (TWDI). Pig iron, as the major base material to produce quality molten metal, due to its high price, has been change with scraps. The use of scrap as major base material associates with more cleaning and chemical composition adjustment. The ITmk3 technology in iron making has successfully produced iron nugget. Iron nugget can be use to substitute pig iron due to its quality that is comparable to pig iron but lower in price. This research conducted to see the effects of carbon content in producing iron nugget. Limonite iron ores used

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Arahangelova, Velichka, and Alexandre Loukanov. "Carbon nanodots as light-activated peroxidase nanozyme for eco-friendly leaching of copper from scrap." SUSTAINABLE EXTRACTION AND PROCESSING OF RAW MATERIALS 3, no. 3 (2022): 11–15. http://dx.doi.org/10.58903/c16182111.

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The copper is the second largest strategic raw material. Since there is a huge gap between copper production and consumption, a green and eco-sustainable recycling technology is necessary that is able to process the copper from secondary sources of waste and scraps. Here we demonstrate the photo-oxidising properties of pyrrolic nitrogen-dominated carbon nanodots as eco-friendly and powerful oxidase-mimicking nanozyme for leaching of copper from metal scrap under irradiation with either ultraviolet or natural sun light (average intensity of 59 000 lux). The ultra-small nanoparticles with diamet

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Velichka, Arahangelova, and Loukanov Alexandre. "CARBON NANODOTS AS LIGHT-ACTIVATED OXIDASE NANOZYME FOR ECO-FRIENDLY LEACHING OF COPPER FROM SCRAP." Sustainable Extraction and Processing of Raw Materials Journal 3/2022, no. 3/2022 (2022): 11–15. https://doi.org/10.5281/zenodo.7006966.

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The copper is the second largest strategic raw material. Since there is a huge gap between copper production and consumption, a green and eco-sustainable recycling technology is necessary that is able to process the copper from secondary sources of waste and scraps. Here we demonstrate the photo-oxidising properties of pyrrolic nitrogen-dominated carbon nanodots as eco-friendly and powerful oxidase-mimicking nanozyme for leaching of copper from metal scrap under irradiation with either ultraviolet or natural sun light (average intensity of 59 000 lux). The ultra-small nanoparticles with diamet

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Kwon, Namhun, Jong-Soo Byeon, Hyun Chul Kim, et al. "Effective Deoxidation Process of Titanium Scrap Using MgCl2 Molten Salt Electrolytic." Metals 11, no. 12 (2021): 1981. http://dx.doi.org/10.3390/met11121981.

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To overcome the scarcity and resource limitations of Ti metal, deoxidation of Ti scrap was conducted through electrolytic refining and chemical reaction with MgCl2 molten salt electrolysis. The oxygen concentration in Ti scraps was decreased by the electrochemical and chemical reactions generated by the applied voltages. The optimized conditions for the process were derived by controlling the conditions and parameters by decreasing the thermodynamic activity of the reactants. The correlation between the deoxidation efficiency and the behavior of the voltage and current was confirmed by setting

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Yusuf, Muhammad, Syamsul Bahri, and Agustinawati Agustinawati. "Design and Fabrication of Portable Tilting Furnace for Aluminium Melting." International Journal of Engineering, Science and Information Technology 2, no. 2 (2022): 60–65. http://dx.doi.org/10.52088/ijesty.v2i2.250.

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Machining is a metal cutting process using a machine tool. The machining process will produce the products and the chips or the scraps. The metal of machining chips made from machining processes can be recycled into new materials. The metal of machining chips can be recycled through the smelting process. This research aims to design and fabrication a crucible furnace that can support the recycling process of the metal scraps of machining chips into a new material—the stove is designed to melt non-ferrous metals using gas fuel. The tilting-pot crucible furnace type was created in this research.

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Kabakov, Daniil, Leonid Telipko, Oleksandr Romaniuk, and Anatoli Kabakov. "STRESSED STATE OF FREIGHT WAGONS UNDER SHOCK LOADING." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 2, no. 45 (2024): 73–81. https://doi.org/10.31319/2519-2884.45.2024.7.

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The study focuses on the load-bearing capacity of freight railway wagons used in the metallurgical and mining industries for transporting heavy metal scraps and overburden rocks. These materials are loaded by dropping them onto the unprotected floor of the wagon. The goal is to extend the wagons' service life and reduce material consumption. This problem is addressed by refining calculation methods for dynamic impact loads, considering the structural properties of the wagons. The design must meet strength parameters under extreme operating conditions while minimizing material use. An analytica

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Park, Hyungkyu, and Hosang Sohn. "Current Status on the Recycling of Domestic Major Non-ferrous Metal Scraps." Journal of the Korean Institute of Resources Recycling 24, no. 5 (2015): 72–79. http://dx.doi.org/10.7844/kirr.2015.24.5.72.

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Park, Kyung-Soo, Basudev Swain, Lee Seung Kang, et al. "Study on Leaching Behavior for Recovery of Ga Metal from LED Scraps." Applied Chemistry for Engineering 25, no. 4 (2014): 414–17. http://dx.doi.org/10.14478/ace.2014.1059.

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SUGIYAMA, S., T. MERA, and J. YANAGIMOTO. "Recycling of minute metal scraps by semisolid processing: Manufacturing of design materials." Transactions of Nonferrous Metals Society of China 20, no. 9 (2010): 1567–71. http://dx.doi.org/10.1016/s1003-6326(09)60340-x.

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Wei, Hwa-Jou, Tsuey-Lin Tsai, Jeng-Jong Wang, Ing-Jane Chen, Jyi-Lan Wuu, and Tzu-Wen Wang. "Clearance measurement of metal scraps for nuclear facility at INER in Taiwan." Applied Radiation and Isotopes 67, no. 5 (2009): 944–49. http://dx.doi.org/10.1016/j.apradiso.2009.01.080.

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Gu, Wang-Hoi, Yeon Seok Jeong, Kyeongmi Kim, Jin-Chun Kim, Seong-Ho Son, and Sunjung Kim. "Thermal oxidation behavior of WC–Co hard metal machining tool tip scraps." Journal of Materials Processing Technology 212, no. 6 (2012): 1250–56. http://dx.doi.org/10.1016/j.jmatprotec.2012.01.009.

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Liu, Chengsong, Hua Zhang, Qing Fang, Xiaoqin Liu, and Hongwei Ni. "Effect of Silicon Concentration on Melting Behavior of Scraps in Hot Metal." Metallurgical and Materials Transactions B 51, no. 4 (2020): 1668–78. http://dx.doi.org/10.1007/s11663-020-01871-3.

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