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Thermo-Insulating Moulding Sand for thin Walled Castings [PDF]

open access: diamondArchives of Metallurgy and Materials, 2014
In paper the selection of the composition and determination of main properties of novel moulding sand was described. The mail goal was to create moulding sand characterized by high thermal insulating properties in relations with low specific weight. This
Cholewa M., Szuter T.
doaj   +3 more sources

Factorial optimization and predictive modelling of properties of Ukpor clay bonded synthetic moulding sand prepared using River Niger silica sand

open access: goldResults in Materials, 2021
Moulding sand-related process parameters and properties were analyzed and optimized using design-expert software. The moulding sand mix was prepared using seven different particle sizes of the silica sand and weight percentages of clay and moisture ...
Francis Odikpo Edoziuno   +5 more
doaj   +2 more sources

Influence of Quartz Sand Quality on Bending Strength and Thermal Deformation of Moulding Sands with Synthetic Binders [PDF]

open access: diamondArchives of Foundry Engineering, 2015
Modern techniques of castings production, including moulding sands production, require a strict technological regime and high quality materials. In the case of self-hardening moulding sands with synthetic binders those requirements apply mainly to sand ...
Dobosz St. M.   +3 more
doaj   +2 more sources

Investigations of the Influence of the Matrix Recycling on Properties of the Moulding Sand with Geopol 618 Binder [PDF]

open access: diamond, 2013
Self-hardening moulding sands with water-glass hardened by liquid esters are applied in several foundry plants for making moulds for the production of heavy iron and steel castings. The main good point of this process is a low cost of sands.
J. Kamińska
core   +8 more sources

Selection of hardening technology of moulding sand with hydrated sodium silicate binder devoted to aluminum alloys ablation casting [PDF]

open access: diamondArchives of Metallurgy and Materials, 2019
The ablation casting technology consists in pouring castings in single-use moulds made from the mixture of sand and watersoluble binder. After pouring the mould with liquid metal, while the casting is still solidifying, the mould destruction (washing out,
K. Major-Gabryś   +3 more
doaj   +3 more sources

Effects of Moisture and Content of Moulding Sand Bentonite on the Electric Properties [PDF]

open access: diamondArchives of Metallurgy and Materials, 2018
The paper presents the results of laboratory tests into the effects of moisture and the content of two types of bentonite on dielectric properties of moulding sand.
D. Nowak
doaj   +3 more sources

The Impact of Microwave Penetration Depth on the Process of Heating the Moulding Sand with Sodium Silicate [PDF]

open access: diamondArchives of Foundry Engineering, 2017
This paper presents the impact of microwave penetration depth on the process of heating the moulding sand with sodium silicate. For each material it is affected by: the wavelength in vacuum and the real and imaginary components of the relative complex ...
Nowak D.
doaj   +2 more sources

Polymer Binder BioCo3 with Silicates and its Application to Microwave-Cured Moulding Sand [PDF]

open access: diamondArchives of Foundry Engineering, 2017
The effects of silica additive (Poraver) on selected properties of BioCo3 binder in form of an aqueous poly(sodium acrylate) and dextrin (PAANa/D) binder were determined.
Grabowska B.   +5 more
doaj   +2 more sources

A new numerical simulation model for high pressure squeezing moulding [PDF]

open access: yesChina Foundry, 2011
High pressure squeeze is the most popular moulding process applied in modern moulding machines. Because of the unique characters of moulding sand and nonlinearity of squeezing process, the mechanical model is of key importance for computer simulation ...
Li Hua, Wu Junjiao, Huang Tianyou
doaj   +2 more sources

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