High-quality manufacturing method of complicated castings based on multi-material hybrid moulding process [PDF]
China Foundry, 2018 A multi-material hybrid patternless moulding process for complicated castings has been proposed. Moulding sands used in the hybrid moulding process include silica sand, ceramic sand, chromite sand, zircon sand, and steel shot sand.
Li-min Liu, Zhong-de Shan, Feng Liu
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Characterization of sand and sand–binder systems from the foundry industry with electrical impedance spectroscopy [PDF]
Journal of Sensors and Sensor Systems, 2021 The global economy consumes an estimated 4×1010 t of sand per year, with only 2×1010 t of sand being reproduced by natural sedimentation (Götze and Göbbels, 2017; Peduzzi, 2014).
L. Bifano +3 more
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Meta-Transcriptomes From Microcosms From a Cr Impacted Soil Provides Insights Into the Metabolic Response of the Microbial Populations to Acetate Stimulation. [PDF]
Environ Microbiol RepSoil samples from below a COPR waste tip were used to inoculate microcosms which were challenged with Cr(VI). One microcosm was also supplemented with acetate. Microbiology was sampled and bacterial gene expression analysed. Created in BioRender. Baker (2025) https://BioRender.com/j84z498.
Stewart DI +3 more
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Effect of basicity on beneficiated chromite sand smelting process using submerged arc furnace [PDF]
AIP Conference Proceedings, 2018 Ferrochrome is an important alloy in stainless steel making due to its contribution to high strength and corrosion resistance. In this present study, ferrochrome was derived from Indonesian chromite sand with low-grade Cr/Fe ratio. In order to improve the ratio, beneficiation process such as pre-magnetic separation and reduction process at 1000°C for ...
F. Nurjaman +3 more
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Tikrit Journal of Pure Science, 2023 Study of three Barchan sand dunes in Na'ama area southeast Tikrit city have been carried out for (10) samples, the investigation included petrographical, mineralogical and geochemical aspects of the sand dunes from grain size point, the sand grains are ...
Yaseen S. K. Al-Jwaini
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Effect of Temperature on Chromite-Based Moulding Sands Bonded with Sodium Silicate
Archives of Foundry Engineering, 2016 In the paper, a research on effects of baking temperature on chromite sand base of moulding sands bonded with sodium silicate is presented. Pure chromite sand and its chromite-based moulding sand prepared with use of sodium silicate were subjected to ...
Stachowicz M. +3 more
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Influence of Molding Materials on the Self-Hardening of X46Cr13 Steel / Grey Cast Iron Bimetallic Castings [PDF]
Archives of Metallurgy and Materials, 2020 The paper presents the problem which concerning the technology of bimetallic castings in materials configuration: high-chromium steel as the working layer and grey cast iron as the base part.
N. Przyszlak, T. Wróbel, A. Dulska
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Free Opening Performance of Steel Ladle as a Function of Filler Sand Properties [PDF]
Materials Research, 2016 The secondary steel refining process uses filler sand as a thermal insulating barrier that separates the liquid metal from direct contact with slide-gate system of the steel ladle. The effective use of this practice must provide a high free opening rate,
Ricardo Thomé da Cruz +3 more
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Conodont dating of the Middle Ordovician breccia cap-rock limestone on Osmussaar Island, northwestern Estonia [PDF]
Estonian Journal of Earth Sciences, 2012 Various mechanisms have hitherto been suggested to explain the formation of the Kundan (Middle Ordovician) Osmussaar Breccia in northwestern Estonia. Following the recent discovery of L-chondritic chromite in these peculiar, sand-penetrated strata, it ...
Johanna I. S. Mellgren +4 more
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Assessment of Foundry Chromite Sand Crushability under Thermal-Mechanical Loading
Archives of Foundry Engineering, 2022 When used for sand casting, foundry sand is stressed in several ways. These stresses, thermal and mechanical, compromise the grain integrity, resulting in size reduction and the production of small particles to the point where the sand is no longer viable for sand casting. This study evaluates the crushability of chromite sand, a crucial characteristic
J.K. Kabasele, K.D. Nyembwe, H. Polzin
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