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Wyszukujesz frazę "casting core" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Characteristic of core manufacturing process with use of sand, bonded by ecological friendly nonorganic binders
Autorzy:
Fedoryszyn, A.
Dańko, J.
Dańko, R.
Asłanowicz, M.
Fulko, T.
Ościłowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/947570.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mechanization of foundry proces
automation of foundry proces
core blowing machine
casting core
inorganic binder
mechanizacja procesu odlewniczego
automatyzacja procesu odlewniczego
maszyna odlewnicza
rdzeń odlewniczy
spoiwo nieorganiczne
Opis:
Mechanization of the process of core making with the use of inorganic and organic binders is based, almost solely, on core blowing machines. Presently the core blowing machines are equipped with tools and devices that allow for application of different technologies of core making. Cold-box, hot-box and warm-air technologies require that core blowing machines shall be additionally equipped with either core-box pre-heating system or gas purging and neutralization system, or hot air purging systems. Considering the possibility of using varied, the most advantageous technologies of core making, the production of universal core blowing machines equipped with replaceable devices has been undertaken in Poland. The universal core blowing systems allow for mechanization of core making process also with the use of sand, bonded by modern, eco-friendly binder systems. The paper presents selected results-based evaluation of core blowing process showing the scope of conducted design and implementation works.
Źródło:
Archives of Foundry Engineering; 2013, 13, 3; 19-24
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermo-Insulating Moulding Sand for thin Walled Castings
Termoizolacyjna masa formierska na odlewy cienkościenne
Autorzy:
Cholewa, M.
Szuter, T.
Powiązania:
https://bibliotekanauki.pl/articles/351144.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
moulding sand
core
skeleton casting
masa formierska
rdzeń
odlew szkieletowy
Opis:
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 type of moulding sand will find application in thin walled castings with complex geometry, in particular for cores of the skeleton castings. In this work the results of the compressive strength, permeability and friability was presented. It was noted that aluminosilicate microspheres are suitable as moulding sand matrix. Influence of the polyglicol addition on quality and properties of the moulding sand was described. The use of the aluminosilicate microspheres allowed to obtain the moulding sand characterized by high insulation rate, low specific weight and good mechanical properties.
W artykule przedstawiono dobór składu oraz określenie podstawowych własności nowoczesnej jakościowo masy formierskiej. Głównym celem pracy było wytworzenie masy formierskiej charakteryzującej się wysoką termoizolacyjnością w połączeniu z niską masą właściwą. Masa taka znajdzie zastosowanie do wytwarzania cienkościennych odlewów o rozbudowanej geometrii ze szczególnym przeznaczeniem na rdzenie odlewów szkieletowych. W pracy przedstawiono wyniki badań wytrzymałości na ściskanie, przepuszczalności, oraz osypliwości. Stwierdzono przydatność mikrosfer glinokrzemianowych, jako osnowy masy formierskiej. Określono korzystny wpływ poliglikolu na jakość i własności wytworzonej masy. Zastosowanie mikrosfer glinokrzemianowych pozwoliło na uzyskanie masy o wysokiej izolacji cieplnej w połączeniu z niską masą właściwą i dobrymi własnościami mechanicznymi.
Źródło:
Archives of Metallurgy and Materials; 2014, 59, 3; 1077-1080
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aspects of Quality Assurance in Mechanization of Core Making Process
Autorzy:
Asłanowicz, M.
Fedoryszyn, A.
Fulko, T.
Ościłowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/380486.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mechanization of casting processes
automation of casting processes
sand technologies
core shooting
blowing machines
core making process
mechanizacja procesów odlewniczych
automatyzacja procesów odlewniczych
rdzeń wstrzeliwany
wdmuchiwanie
Opis:
The article presents conclusions drawn from analysis and research conducted in domestic foundries concerning currently used core shop equipment as well as determination of their needs within this area. Works within mechanization of core making process, conducted together by Ferro-Masz company, Łódź and Faculty of Foundry Engineering of AGH, Kraków, included analysis of available technologies, applied materials and requirements for mechanization of core making process with the use of blowing methods. Commercial offers from manufacturers of core making systems has been discussed together with presentation of own solution of universal core shooting/blowing machine, ensuring production of high-quality cores.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1 spec.; 43-46
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure of AlSi skeleton castings
Autorzy:
Cholewa, M.
Szuter, T.
Powiązania:
https://bibliotekanauki.pl/articles/382849.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
odlew szkieletowy
masa formierska
rdzeń
stop aluminium
skeleton casting
moulding sand
core
microstructure aluminum alloy
Opis:
Skeleton castings macrostructure can be shaped in many ways, by choosing an appropriate material of cores and manufacturing technologies. Important factor, which puts foundry techniques over the other technologies of periodic cellular materials, is ability to adjust mechanical properties by changing the microstructure of an alloy from which the casting is made. The influence on the microstructure of the skeleton casting can be implemented by choosing the thermal properties, mainly thermal conductivity factor, of mould and core materials. Macro- and microstructure of skeleton castings with octahedron elementary cells was presented in this paper. The analysis concerns the differences in morphology of eutectic silicone depending on the location of measurements cross sections areas. The use of thermo-insulating material with appropriate properties assures correct fill of mould cavity and homogeneous microstructure on whole volume of skeleton casting. The selection of technological parameters of the casting process if very important as well.
Źródło:
Archives of Foundry Engineering; 2012, 12, 2; 147-152
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi Response Optimization of the Functional Properties of Rubber Seed – Shear Butter Based Core Oil Using D-Optimal Mixture Design
Autorzy:
Onyekwere, O. S.
Odiakaose, C.
Uyanga, K. A.
Powiązania:
https://bibliotekanauki.pl/articles/381034.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
core oil
rubber seed oil
shea butter
aluminum casting
rdzeń olejowy
olej kauczukowy
masło shea
odlewanie aluminium
Opis:
In this study, rubber seed/shea butter oil was used to formulate core oil. The formulated core oil was characterised. D-optimal mixture design was used for multi response optimisation of the functional properties of rubber seed-shea butter coil oil. Desirable values for some responses might be obtained from a factor combination while for others responses not so desirable values. Through multiple response optimisations, a factor setting that gives the desirable values for all responses was obtained. The selected optimum mixture setting for the formulated core oil is 65.937% Rubber seed and 34.063% Shea butter oil at desirability of 0.924. Under the optimum condition the functional properties of the core oil was found to be 39.57KN/M2, 626.85KN/M2, 36.63KN/M2, 593.906KN/M2, 412.605 and 167.309s for Green Compressive Strength, Dry Compressive Strength, Green Tensile Strength, Dry Tensile Strength, Permeability and Collapsibility respectively. The optimum conditions were validated with less than 0.2% error. The functional properties of the formulated core oil was compared to the functional properties of linseed core oil. It was found that rubber seed-shea butter core oil can be used for producing cores suitable for Aluminium casting.
Źródło:
Archives of Foundry Engineering; 2017, 17, 4; 207-223
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technological Properties of Moulding Sands with Geopolymer Binder for Aluminium Casting
Autorzy:
Vaskova, I.
Conev, M.
Hrubovčáková, M.
Powiązania:
https://bibliotekanauki.pl/articles/383257.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
inorganic binder
geopolymer binder
sand core
knock-out properties
aluminium casting
spoiwo nieorganiczne
spoiwo geopolimerowe
masa rdzeniowa
wybijalność masy formierskiej
odlew aluminiowy
Opis:
The use of environmentally friendly inorganic binders and new technologies for cores production is widely discussed topic in recent years. This paper contains information about new hot curing process for core making with alumina-silicate based inorganic binders – geopolymers. Main differences between hot cured geopolymers and hot cured alkali silicate based inorganic binders are discussed. The main objective of this research paper was to investigate basic technological properties of geopolymer binder system such as strength, compaction, storage ability and knock-out properties. For this purpose, three mixtures with different powder additives were prepared and tested in laboratory conditions using specific methods. Strength properties evaluation showed sufficient levels as well as knock-out properties measurement, even with additives B and C originally designed for the use with alkali silicate based two component binder systems. Additives B and C were considered compatible with geopolymer binders after casting production trial results. Storage ability of geopolymers seems to be more sensitive than of alkali silicate based binders in the same tested conditions. Mixtures with geopolymer binder showed 20% more decrease of strength compared to alkali silicate binders after 24 hours in conditions of 25 °C and 65 %RH.
Źródło:
Archives of Foundry Engineering; 2018, 18, 4; 45-49
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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