Elasticity of Moulding Sands – a Method of Reducing Core Cracking

This paper focuses on mechanical properties of self hardening moulding sands with furfuryl and alkyd binders. Elasticity as a new parameter of moulding sands is investigated. With the use of presented testing equipment, it is possible to determine force kinetics and deformation of moulding sand in r...

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Main Authors: Dobosz St. M., Grabarczyk A., Major-Gabryś K.
Format: Article
Language:English
Published: Polish Academy of Sciences 2017-03-01
Series:Archives of Foundry Engineering
Subjects:
Online Access:http://www.degruyter.com/view/j/afe.2017.17.issue-1/afe-2017-0006/afe-2017-0006.xml?format=INT
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author Dobosz St. M.
Grabarczyk A.
Major-Gabryś K.
author_facet Dobosz St. M.
Grabarczyk A.
Major-Gabryś K.
author_sort Dobosz St. M.
collection DOAJ
description This paper focuses on mechanical properties of self hardening moulding sands with furfuryl and alkyd binders. Elasticity as a new parameter of moulding sands is investigated. With the use of presented testing equipment, it is possible to determine force kinetics and deformation of moulding sand in real time. The need for this kind of study comes from the modern casting industry. New foundries can be characterized with high intensity of production which is correlated with high level of mechanization and automatization of foundry processes. The increasingly common use of manipulators in production of moulds and cores can lead to generation of new types of flaws, caused by breakage in moulds and cores which could occur during mould assembly. Hence it is required that moulds and cores have high resistance to those kinds of factors, attributing it with the phenomenon of elasticity. The article describes the theoretical basis of this property, presents methods of measuring and continues earlier research.
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spelling doaj.art-46fd4a48467542d98cc538d60f0e3cb82023-09-02T14:26:35ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442017-03-01171313610.1515/afe-2017-0006afe-2017-0006Elasticity of Moulding Sands – a Method of Reducing Core CrackingDobosz St. M.0Grabarczyk A.1Major-Gabryś K.2AGH University of Science and Technology in Cracow, Poland Faculty of Foundry Engineering, Department of Moulding Materials. Mould Technology and Cast Non-Ferrous Metals, PolandAGH University of Science and Technology in Cracow, Poland Faculty of Foundry Engineering, Department of Moulding Materials. Mould Technology and Cast Non-Ferrous Metals, PolandAGH University of Science and Technology in Cracow, Poland Faculty of Foundry Engineering, Department of Moulding Materials. Mould Technology and Cast Non-Ferrous Metals, PolandThis paper focuses on mechanical properties of self hardening moulding sands with furfuryl and alkyd binders. Elasticity as a new parameter of moulding sands is investigated. With the use of presented testing equipment, it is possible to determine force kinetics and deformation of moulding sand in real time. The need for this kind of study comes from the modern casting industry. New foundries can be characterized with high intensity of production which is correlated with high level of mechanization and automatization of foundry processes. The increasingly common use of manipulators in production of moulds and cores can lead to generation of new types of flaws, caused by breakage in moulds and cores which could occur during mould assembly. Hence it is required that moulds and cores have high resistance to those kinds of factors, attributing it with the phenomenon of elasticity. The article describes the theoretical basis of this property, presents methods of measuring and continues earlier research.http://www.degruyter.com/view/j/afe.2017.17.issue-1/afe-2017-0006/afe-2017-0006.xml?format=INTInnovative foundry technologies and materialsMoulding sandBinderElasticityCracking
spellingShingle Dobosz St. M.
Grabarczyk A.
Major-Gabryś K.
Elasticity of Moulding Sands – a Method of Reducing Core Cracking
Archives of Foundry Engineering
Innovative foundry technologies and materials
Moulding sand
Binder
Elasticity
Cracking
title Elasticity of Moulding Sands – a Method of Reducing Core Cracking
title_full Elasticity of Moulding Sands – a Method of Reducing Core Cracking
title_fullStr Elasticity of Moulding Sands – a Method of Reducing Core Cracking
title_full_unstemmed Elasticity of Moulding Sands – a Method of Reducing Core Cracking
title_short Elasticity of Moulding Sands – a Method of Reducing Core Cracking
title_sort elasticity of moulding sands a method of reducing core cracking
topic Innovative foundry technologies and materials
Moulding sand
Binder
Elasticity
Cracking
url http://www.degruyter.com/view/j/afe.2017.17.issue-1/afe-2017-0006/afe-2017-0006.xml?format=INT
work_keys_str_mv AT doboszstm elasticityofmouldingsandsamethodofreducingcorecracking
AT grabarczyka elasticityofmouldingsandsamethodofreducingcorecracking
AT majorgabrysk elasticityofmouldingsandsamethodofreducingcorecracking