Your search for moulding sand resulted in 35 matches...
The article presents the results of laboratory tests on the binding characteristics of moulding sands with inorganic geopolymer binders and for comparison with furan resin and alkaline resin, designed for casting o...
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The article presents the results of model tests and studies of the sand reclamation from waste moulding and core mixtures with an inorganic geopolymer binder, used in the trial production of pilot castings...
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The article presents the basic characteristics of the pollutants emitted in the process of foundry mould manufacture. A method to reduce harmful emissions through the application of advanced oxidation was described...
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The article presents the most important results of the research, development and implementation studies carried out under one of the Target Projects as a result of cooperation between the CERTECH Technical and Comm...
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The article presents the results of high-temperature investigations of the modified samples of hydrated sodium silicate and of the sand mixtures with an addition of this compound. To improve the knocking out proper...
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The article discusses the most important results of research, development and implementation works conducted under Target Projects in years 2006-2007 at the two Polish foundries, i.e. „Radom" Fittings Factory...
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The paper presents the results of laboratory and industrial tests undertaken in order to develop and implement in foundry production the high-quality bentonite made from the raw dried material and selected fractions formed in the production of hyg...
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The article presents results of an investigation which constitutes a section of research under the project POIG.01.01.02-00-015/09 "Advanced materials and technologies", one of the aims which is the introduction of new ecological inorganic binders...
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The article presents results of laboratory tests to develop a new generation of foundry hybrid bentonite. Hybrid bentonite is intended for use as binder for synthetic moulding sands and sandmixes. In the previous practice foundry bentonite was a p...
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One of the factors which influence development tendencies within the scope of moulding sands used in foundry practice is environmental protection. Hence, while assessing technologies, the composition of utilised materials and emissions of harmful ...
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The presented article is the first in the series, which presents research related to the improvement of technology for producing brake blocks for the railway industry in the Spomel foundry in Lębork.The cooperation with the Foundry Research...
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The presented article is the second in the series, which presents research related to the improvement of technology for producing brake blocks for the railway industry in the Spomel foundry in Lębork. The cooperation with the Foundry Research Ins...
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Results of Rctk residual strength tests are presented for samples of moulding sands prepared with a stable content of soluble sodium silicate binding agents of different WB structure indicator values, hardened in the ester pr...
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Among various sands with organic binders, moulding sands with furan resins belong to the group most widely applied in the manufacture of castings from ferrous alloys. This is due to a number of undisputable advantages offered by these sands, altho...
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The article presents the results of preliminary studies on the possible application of innovative activation treatments of inorganic binders during the reclamation of waste water glass moulding sands hardened by conventional drying. The test mould...
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The article presents the results of tests and studies carried out within the framework of statutory activities on various additives to moulding sands based on water-soluble inorganic binders for ablative knocking out of castings. As a result of te...
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The article presents the results of research on the possibilities of utilizing waste moulding sands with silicate and geopolymer binders in the production of autoclaved cellular concrete. The high content of silica in the waste moulding and core s...
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The paper presents the results of analysis of gases formed under the impact of high temperature acting on moulding sands with the addition of selected organic resins and hardeners, commonly used in foundries as binders for these sands. As a resear...
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The results of studies of quartz wettability by an ecological foundry binder are presented. Water glass modified with nanoparticles of metal oxides, such as: MgO, Al2O3 and ZnO in organic solvents (methanol or propanol) was u...
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The results of studies of the process of pressure-free granulation of foundry dust were described, including dust generated in the mechanical reclamation of waste bentonite sand (Dust 1), dust generated in the dry mechanical reclamation of waste s...
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An attempt has been made to determine the effect of the addition of an agent wetting the surface of silica sand grains, introduced in order to increase the hardening efficiency of selected physical methods applied to the ecological foundry sands b...
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The article presents an analysis of the kinetics of the hardening process of self-hardening masses. In this study, moulding sand with a quartz sand grain matrix by Sibelco, main fraction Fm 0.40; 0.32; 0.20 mm, was used. Two resins were...
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The increasing requirements concerning the emission of hazardous substances force the casting industry to search for new, more environment-friendly solutions. Such solutions may include technologies of developing moulding and core sands with the u...
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The article presents the results of the pyrolysis of resin, the fast hardener as well as cured resin used in the ALPHASET technology. It is an alkaline phenolic resin of the resol type cured with an ester mixture. The pyrolysis was performed at 90...
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An analysis of the drying process of surface layers of sand moulds and cores (made of loose self-hardening moulding sand with hydrated sodium silicate hardened with a liquid ester hardener) which was previously subjected to the process of moisture...
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The study attempts to complement the information on the effect of the density of moulding sands with inorganic binders on basic strength parameters, i.e. the tensile and bending strength of moulding sands with hydrated sodium silicate, after the p...
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This paper presented the spectral study (FTIR, UV-Vis) for samples of non-activated bentonite (calcium) which has in its composition a main mineral resource, montmorillonite (MMT). MMT, as a component which contains calcium ions (Ca-MMT, was modif...
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Structural (FTIR) and thermo-analytic (DRIFT) studies were conducted on modified starch in the form of sodium salt of carboxymethyl starch (CMS-Na0.6) in the initial state, i.e. a colloidal solution, and in a cross-linked form prepared ...
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The article discusses the ways of modification of hydrated sodium silicate as a silicate binder of moulding sands which were applied in the studies. It determines the change in the residual strength of the moulding sand with used silicate binders ...
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The article presents the results of surface morphology of dust from dry dedusting of moulding sand with bentonite and mixtures of bentonite with lustrous carbon carrier using scanning electron microscopy. The study identifies the approxi...
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Investigation results of erosion-mechanical grinding (wearing) of surfaces of foundry patterns (test samples) made of several kinds of materials are presented in the hereby paper. Investigations contained: resins, wood, painted ...
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The article raises the issue of the influence of increased temperature on olivine moulding and core sands with an inorganic binder from the group of unmodified kinds of hydrated sodium silicates. Produced at laboratory conditions,&n...
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The increasing requirements of casting users regarding the dimensional accuracy and surface roughness of castings force the manufacturers, i.e. foundries, to use protective coatings on moulds and cores. Coatings are applied in ...
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In this paper an attempt was made to explain the phenomena accompanying the formation and destruction of bonded elements of moulds and cores in which a mixture of unmodified hydrated sodium silicate with a molar module of 2.9 (...
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Testing the properties of mould and core sands are specified in the norms and standards, which are used to determine the suitability of the sand for specific applications. However, the testing of protective coatings for moulding&nbs...
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