Mechanical Reclamation of Spent Moulding Sand on Chromite Sand Matrix; Removal of Alkali-Phenolic Binder [PDF]
Materials, 2023 The foundry industry generates large amounts of waste when casting metal into sand moulds. An important issue is the activities that are related to the re-recovery of the grain matrix (the main component of the moulding sand) for realising subsequent ...
Mariusz Łucarz +2 more
exaly +5 more sources
Assessment of South African Chromite Sand for Binder Jetting Application [PDF]
MATEC Web of Conferences, 2022 Binder Jetting is an Additive manufacturing (AM) technique in which binding liquid is jetted on layers of powdered materials, selectively according to the Computer Aided Design (CAD) model to form a 3D part.
Chauke Julieth Langutani +2 more
doaj +3 more sources
An Assessment of South African Chromite Sand Crushing Ratio
International Journal of MetalcastingMechanical reclamation is the de facto method of sand recycling in most foundries used to limit sand dumping and adhere to environmental regulations.
Didier Nyembwe +1 more
exaly +3 more sources
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
doaj +3 more sources
Study to improve the breaking strength of the no-bake chromite sand-furan resin cores [PDF]
Journal of Mining and Metallurgy. Section A: Mining, 2015 This study was carried out to determine the effects of number of washings, curing time and heat treatment on the breaking strength of no-bake chromite sand-furan resin cores.
Ntwagae M. +3 more
doaj +4 more sources
Enrichment Chromite Sand Grade Using Magnetic Separator
IOP Conference Series: Materials Science and Engineering, 2019 To fulfil requirements of mettalurgical grade 48% Cr2O3 with Cr:Fe ratio 3:1 need the right beneficiation, one of them is using magnetic separator.
W Dahani
exaly +3 more sources
Classification of Sand-Binder Mixtures from the Foundry Industry Using Electrical Impedance Spectroscopy and Support Vector Machines [PDF]
SensorsMolding sand mixtures used in the foundry industry consist of various sands (quartz sands, chromite sands, etc.) and additives such as bentonite. The optimum control of the processes involved in using the mixtures and in their regeneration after the ...
Luca Bifano +2 more
doaj +3 more sources
Influence of sand base preparation on properties of chromite moulding sands with sodium silicate hardened with selected methods [PDF]
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.
doaj +3 more sources
Design and Development of Knowledge Base Scheme for Chromite-based Resin Bonded Sand Core System
Procedia Materials Science, 2014 An expert system is developed in the present paper to predict the mechanical properties of chromite-based resin bonded sand core system. The various properties of sand cores, such as hardness, compression strength, collapsibility, tensile strength, hot ...
B Surekha +2 more
exaly +3 more sources
OPTIMISATION OF A RESIN-COATED CHROMITE SAND FOR RAPID SAND CASTING APPLICATIONS
South African Journal of Industrial Engineering, 2021 Applications of three-dimensional printing (3DP) to sand casting have been well-established in the last two decades. The preferred raw material is silica (quartz) sand, as it is the most readily available and cost effective sand.
N. Tshabalala +2 more
semanticscholar +5 more sources