Results 51 to 60 of about 298 (159)

Influence of sand base preparation on properties of chromite moulding sands with sodium silicate hardened with selected methods

open access: yesArchives 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   +1 more source

Examination and analysis of influence of compaction degree on dielectricproperties of moulding sand components

open access: yesMetalurgija, 2015
In the paper, presented are results of a research on influence of compaction degree on dielectric properties of components of moulding sands. During recent years, intensive research works on possibilities of using microwave heating in foundry technique ...
D. Nowak, K. Granat, B. Opyd
doaj  

Investigations of Physicochemical Properties and Thermal Utilisation of Dusts Generated in the Mechanical Reclamation Process of Spent Moulding Sands

open access: yesArchives of Metallurgy and Materials, 2015
The after reclamation dusts originated from various foundry plants, applying moulding sands with organic binding agents, mostly resins, are characterised by different properties in dependence of the used binders, reclamation systems, spent sands ...
Dańko R., Holtzer M., Dańko J.
doaj   +1 more source

Effect of Sand Wetting on Physically Hardened Moulding Sands Containing a Selected Inorganic Binder. Part 2

open access: yesArchives of Foundry Engineering, 2016
In the paper, an attempt is made to explain the previously observed increased effectiveness of utilising hydrated sodium water-glass grade 137 after hardening moulding sands with selected physical methods.
Stachowicz M., Granat K., Pałyga Ł.
doaj   +1 more source

Influence of the Changes of the Structure of Foundry Bentonites on Their Binding Properties

open access: yesMedžiagotyra, 2012
In this paper, the effects of the examination of the structure of calcium bentonites, activated by sodium carbonate, applied in the foundry industry as a binding agent for moulding sands, subjected to the effects of high temperature, were presented.
Sylwia ŻYMANKOWSKA-KUMON   +3 more
doaj   +1 more source

New BioCo binders containing biopolymers for foundry industry

open access: yesMetalurgija, 2013
Possibilities of cross-linking of new polymer binders from the BioCo group, their hardening in moulding sands at the application of cross-linking agents both physical and chemical are presented. Their thermal stability was determined. It was proved, that
B. Grabowska   +5 more
doaj  

Sand, mould, pattern and matrix

open access: yes, 2013
Il s’agit ici de reconsidérer des données concernant un procédé de fonte au sable filmé au Maroc il y a plus d’une dizaine d’années. Partant du double constat de la rareté des traces historiques laissées par cette technique et de sa relative rétivité à une analyse technologique classique en anthropologie filmique (en raison du constant changement d ...
openaire   +1 more source

Mechanical Reclamation of Spent Moulding Sand on Chromite Sand Matrix; Removal of Alkali-Phenolic Binder. [PDF]

open access: yesMaterials (Basel), 2023
Łucarz M   +4 more
europepmc   +1 more source

Biodegradable materials as foundry moulding sands binders

open access: yesMetalurgija, 2015
The aim of this article is to show the possibility of using biodegradable materials as part of the composition of foundry moulding and core sand binders.
K. Major - Gabryś
doaj  

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