Results 21 to 30 of about 8,911 (275)

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

open access: yesArchives 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   +1 more source

Moulding Sands with New InorganicBinders - Ecology Assessment in the Aspect of Work Environment [PDF]

open access: yes, 2012
The development of economy and industry introducing new technologies and materials often means the increased threat of occurrenceof factors harmful to humans and environment.
I. Szanda   +3 more
core   +1 more source

Effect of Matrix Type on Properties of Moulding Sand with Barley Malt [PDF]

open access: yesArchives of Foundry Engineering
The aim of the following work was to determine the possibility of using barley malt as a binder in moulding sands technology. The moulding sands prepared on the basis of three kinds of sands, i.e. quartz, olivine and chromite sands were analyzed.
B. Samociuk, D. Nowak, D. Medyński
doaj   +1 more source

The measurement of high-temperature expansion as the standard of estimation the knock-out properties of moulding sands with hydrated sodium silicate [PDF]

open access: yes, 2014
The necessity of receiving high quality castings forces undertaking research to elaborate moulding and core sands ensuring obtaining the materials with relevant technological parameters and also with high environmental standards. The most important group
Beňo, Jaroslav   +4 more
core   +1 more source

Evaluation of Reclamability of Molding Sands with New Inorganic Binders [PDF]

open access: yes, 2012
One of the purposes of the application of chemically modified inorganic binders is to improve knocking out properties and the related reclamability with previously used in foundry inorganic binder (water glass), which allowing the use of ecological ...
A. Baliński   +2 more
core   +1 more source

The influence of moulding sand type on mechanical and thermal deformation [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
Casting industry has been enriched with the processes of mechanization and automation in production. They offer both better working standards, faster and more accurate production, but also have begun to generate new opportunities for new foundry defects.
A. Grabarczyk   +6 more
doaj   +1 more source

GEOPOL®. The innovated environment friendly inorganic binder system [PDF]

open access: yes, 2019
This paper deals with the complete technology of inorganic geopolymer binder system GEOPOL® which is a result of long term research and development. The objective of this paper is to provide a theoretical and practical overview of the GEOPOL® binder ...
Burian, Alois   +2 more
core   +1 more source

Determination of Moisture Content in Synthetic Moulding Sand on the Grounds of Relative Permittivity Measurement

open access: yesArchives of Metallurgy and Materials, 2017
The presented research was aimed at searching for an exact and effective method of determining moisture content in traditional moulding sands. By measuring resonance frequency and quality factor of a waveguide resonance cavity, relative permittivity was ...
Nowak D.   +4 more
doaj   +1 more source

New Materials in the Production of Moulding and Core Sands

open access: yesArchives of Foundry Engineering, 2015
The article shows the influence of environment requirements on changes in different foundry moulding sands technologies such as cold box, self-hardening moulding sands and green sands.
Dobosz St. M.   +2 more
doaj   +1 more source

Plasticity Changes of Moulding Sands with Chemical Binders Caused by Increasing the Hardening Degree [PDF]

open access: yesArchives of Foundry Engineering, 2022
The results of investigations of plasticity of moulding sands with binders obtained by measuring deflection angles in the single point bend test in dependence on their hardening degree are presented in the hereby paper.
N. Matonis, J. Zych
doaj   +1 more source

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