Results 11 to 20 of about 254 (118)
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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Effective Laboratory Method of Chromite Content Estimation in Reclaimed Sands
Archives of Foundry Engineering, 2016 The paper presents an original method of measuring the actual chromite content in the circulating moulding sand of foundry. This type of material is applied for production of moulds. This is the case of foundry which most frequently perform heavy casting
Ignaszak Z., Prunier J-B.
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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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Effect of Temperature on Chromite-Based Moulding Sands Bonded with Sodium Silicate
Archives of Foundry Engineering, 2017 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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Quality Assessment Method for Chromite Sand to Reduce the Number of Cast Steel Surface Defects [PDF]
Archives of Foundry EngineeringThis paper discusses the ability to apply the test method using a scanning electron microscope (SEM) together with EDS (Energy Dispersive Spectroscopy) analysis to assess the quality of fresh chromite sand delivered by various suppliers to Huta Małapanew
T. Wróbel +4 more
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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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Determination of Chromite Sands Suitability for Use in Moulding Sands
Archives of Foundry Engineering, 2017 Using the available analytical methods, including the determination of chemical composition using wavelength-dispersive X-ray fluorescent spectroscopy technique and phase composition determined using X-ray diffraction, microstructural observations in a ...
Stec K. +3 more
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Archives of Metallurgy and Materials, 2017 The paper presents a research on the relation between thermal preparation of chromite sand base of moulding sands containing sodium silicate, hardened with selected physical and chemical methods, and structure of the created bonding bridges.
Stachowicz M., Granat K., Pałyga Ł.
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