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Tytuł:
Kształtowanie mikrostruktury i właściwości mechanicznych brązów cynowych
Shaping the Microstructure and Mechanical Properties of Tin Bronzes
Autorzy:
Rzadkosz, S.
Kozana, J.
Garbacz-Klempka, A.
Piękoś, M.
Cieślak, W.
Powiązania:
https://bibliotekanauki.pl/articles/381842.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
materiały innowacyjne
innowacyjne technologie odlewnicze
brązy cynowe
miedź
mikrostruktura
właściwości mechaniczne
innovative materials
innovative technologies foundry
tin bronzes
copper
microstructure
mechanical properties
Opis:
W artykule zaprezentowano wyniki badań nad wybraną grupą stopów z układu Cu-Sn. Przeanalizowano oddziaływanie udziału cyny w brązach cynowych w zakresie od 6 do 30 %. Kontynuując badania zmierzające do uzyskania odpornych na zużycie brązów spoza grup znormalizowanych stopów miedzi, oceniono oddziaływanie dodatku aluminium w stopach Cu-Sn. Przeprowadzono badania metalograficzne zmierzające do określenia mechanizmów oddziaływania zmiennych zawartości dodatków stopowych z uwagi na zmiany podstawowych właściwości mechanicznych. Uzyskane wyniki wskazują na wyraźne zmiany mikrostruktur badanych stopów, jak również wykazują silne utwardzenie stopów Cu-Sn. Zastosowane dodatki aluminium w zakresie do 3 % w wybranych stopach powodują również poprawę właściwości mechanicznych badanych brązów cynowych z dodatkiem aluminium.
During the research a chosen group of copper - tin alloys were investigated. The influence Sn in tin bronzes was analysed in the broad spectrum between 6 to 30%. Continuing the research aiming at obtaining durable bronzes outside the normalised copper alloys, the influence of chosen aluminium additive in selected Cu-Sn alloys was assessed. Metallographic tests were carried out to determine the operating mechanisms and also the influence of the varied alloying additives from the perspective of changes in the basic properties of the alloys investigated. The obtained results clearly point to the changes in microstructures and mechanical properties of the alloys investigated.
Źródło:
Archives of Foundry Engineering; 2014, 14, 4 spec.; 107-110
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie metod klasycznych i nowoczesnej mikrofalowej wytwarzania rdzeni z mas ze szkłem wodnym
Comparison of Classical Methods and Modern Microwave to Manufacturing Cores from Water-Glass Containing Moulding Sands
Autorzy:
Stachowicz, M.
Granat, K.
Małachowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/381848.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innowacyjne technologie odlewnicze
utwardzanie mikrofalowe
szkło wodne
masy rdzeniowe
chromit
innovative technologies foundry
curing ovens
water glass
moulding sands
chromite
Opis:
W pracy przedstawiono wyniki porównania wybranych współczesnych metod produkcji rdzeni odlewniczych z mas formierskich ze szkłem wodnym sporządzonych na bazie osnowy kwarcowej i chromitowej. Masy formierskie z nieorganicznym spoiwem, jakim jest szkło wodne, są nieszkodliwe dla środowiska, neutralne dla ludzi i relatywnie tanie. Na tle tradycyjnych metod wykonywania rdzeni z mas ze szkłem wodnym: w procesie CO2, w technologii ciekłych estrów lub drogą tradycyjnego suszenia, innowacyjna metoda szybkiego utwardzania mikrofalami umożliwia ograniczenie ilości stosowanych materiałów, zmniejszenie wytrzymałości resztkowej masy, a tym samym poprawę jej wybijalności. W poniższej pracy zestawiono dostępne informacje na temat mikrofalowego procesu utwardzania mas zawierających szkło wodne, właściwości wytrzymałościowych zużytych mas kwarcowych i chromitowych, jak również porównanie kosztów praktycznego zastosowania tej technologii w warunkach pracującej rdzeniarni. Ponadto, wskazano korzyści wynikające z zastosowania tego innowacyjnego i przyjaznego dla środowiska rozwiązania, które może skutecznie zastąpić tradycyjne, często materiało- i energochłonne, procesy wytwarzania rdzeni z mas ze szkłem wodnym, sporządzanych z użyciem osnowy chromitowej lub kwarcowej.
The paper presents examination results of different, modern casting core production methods of water-glass moulding sands based on silica or chromite sand matrixes. Those sandmixes are harmless for the environment, neutral for humans and relatively cheap. Against the background of traditional methods of core making such as CO2 process, liquid esters or traditional drying, the innovative method of rapid hardening by microwave heating permits restricting quantity of used materials, reduction of the residual strength and thus improves knock-out properties. In this paper, compiled is available information about microwave hardening of water-glass containing sandmixes, as well as residual strength properties of silica or chromite moulding sands, as well as a comparison of the costs of the practical application of this technology in the working foundry. In addition, some benefits are indicated, resulting from applying such an innovative and environment-friendly solution effectively replacing traditional, material and energy-consuming processes of preparing casting cores from water-glass containing moulding sands with chromite or silica matrixes.
Źródło:
Archives of Foundry Engineering; 2014, 14, 2 spec.; 83-88
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Chemical Composition of the Matrix on AlSi/SiCp+Cp Composite Structure
Autorzy:
Dolata, A. J.
Dyzia, M.
Powiązania:
https://bibliotekanauki.pl/articles/380736.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technologies
innovative materials
castings defects
aluminium composite structure
innowacyjne technologie odlewnicze
materiały innowacyjne
wady odlewów
Opis:
The casting processes using mechanical stirring of composite suspension are considered for the most economical methods for manufacturing of metal matrix composites in the application and industrial practice. The most common problems during the composite suspensions production include: weak wetting between liquid Al alloy and ceramic particles and gassing of composite mixtures resulting with introducing the particles into aluminium alloy and long-term stirring process. The agglomerates and clusters of particles created among others as an effect of gas blisters absorption on the surface of ceramics causes discontinuity of composite structure and thereby they reduce properties of final products. The porosity has disadvantageous effect on mechanical properties of products, it reduces the corrosion and wear resistance, particularly under technically dry friction conditions. Therefore, to produced the casts composite possessed optimal properties, it is necessary their minimal porosity. To obtaining a good high-quality castings, the proper selection of components, particularly the chemical composition of the Al matrix and the kind of reinforcement are necessary. In this paper, the effect of chemical composition of the matrix on AlSi/SiCp+Cp composite structure were presented.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1 spec.; 135-138
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Attempts to Prepare Precision Composite Castings by Sintering Al2O3/AlSi11 Using Underpressure
Autorzy:
Szymański, P.
Gawdzińska, K.
Nagolska, D.
Powiązania:
https://bibliotekanauki.pl/articles/381239.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technologies
innovative foundry materials
composites
rapid prototyping
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
kompozyty
prototypy
Opis:
This article presents the preparation of composite casts made using the technology of precise casting by the method of melted models. The composite was reinforced with the ceramic sinter from Al2O3 particle shaped in a printed polystyrene female mould, which was fired together with precured ceramics. The resulting ceramic preform, after being saturated with paraffin and after the filling system is installed, was filled with liquid moulding sand and fired together with the mould. The reinforcement was saturated by means of the counter-pressure exerting action on the metal column, being a resultant of pressures inside and outside the chamber. The preliminary assessment showed no apparent defects in the shape of the cast. The casting was measured and the figures were compared with the dimensions of the matrix in which the reinforcing preform was made, the preform after firing and after saturation with paraffin. The results were presented in a table and dimensional deviations were determined. The composite casting was subjected to metallographic tests, which excluded any porous defects or damage to the reinforcement. It can therefore be said that, according to the predictions resulting from the previous calculations, the pressure values used allowed for complete filling of the reinforcement capillaries. The proposed method is therefore suitable for the preparation of precision composite castings with complex shapes.
Źródło:
Archives of Foundry Engineering; 2020, 20, 1; 49-54
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of microwaves for binder content assessment in moulding sands
Autorzy:
Nowak, D.
Powiązania:
https://bibliotekanauki.pl/articles/380212.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innowacyjne technologie odlewnicze
masa formierska
spoiwo
mikrofale
innovative foundry technologies
moulding sand
binder
microwaves
Opis:
The paper presents results of preliminary examinations on possibility of determining binder content in traditional moulding sands with the microwave method. The presented measurements were carried-out using a special stand, the so-called slot line. Binder content in the sandmix was determined by measurements of absorption damping Ad and insertion losses IL of electromagnetic wave. One of main advantages of the suggested new method of binder content measurement is short measuring time.
Źródło:
Archives of Foundry Engineering; 2012, 12, 3; 83-86
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The silumin coat structure on alloy ductile iron
Autorzy:
Szymczak, T.
Powiązania:
https://bibliotekanauki.pl/articles/383363.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innowacyjne technologie odlewnicze
żeliwo sferoidalne
silumin
innovative casting technologies
dip coats
alloy ductile iron
Opis:
The work presents the research results of the silumin coat structure applied on the carbidic alloy ductile iron with the metal matrix: pearlitic, bainitic and martensitic. The coats were made in the AlSi5 silumin bath at the temperature tk = 750±5ºC. The holding time of cast iron element in the bath was \tau = 180s. Irrespective of the kind of tested ductile iron the obtained coat consisted of three layers with a different phase composition. The first layer from the cast iron ground “g1” is built from Fe4CSi carbide which contains selected alloy additives of the cast iron. On it the second layer “g1” crystallizes. It consists of the AlFeSi inter-metallic phase which can appear in its pure form or contain a small quantity of the alloy additives of the cast iron. The last external part of the layer “g2” mainly consists of the hypo-eutectic phases of silumin. The AlFeSi inter-metallic phases in the form of free precipitations with a lamellar or faceted morphology can also appear there. These phases also can contain a small quantity of the alloy additives of the cast iron. More than that, in all the layers of the coat there are graphite precipitations. The phenomenon of graphite movement to the coat is caused by intensive dissolving of the cast iron element surface by the aluminum of the silumin bath.
Źródło:
Archives of Foundry Engineering; 2013, 13, 1; 119-124
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kinetics of the σ Phase Precipitation in Respect of Erosion-corrosion Wear of Duplex Cast Steel
Autorzy:
Brodziak-Hyska, A.
Stradomski, Z.
Kolan, C.
Powiązania:
https://bibliotekanauki.pl/articles/382274.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry materials
innovative technologies
duplex cast steel
sigma phase
shape factor
erosive-corrosive wear
materiały odlewnicze
innowacyjne technologie odlewnicze
staliwa duplex
współczynnik kształtu
korozja
zużycie
Opis:
The examined material comprised two grades of corrosion-resistant cast steel, namely GX2CrNiMoN25-6-3 and GX2CrNiMoCuN25-6-3-3, used for example in elements of systems of wet flue gas desulphurisation in power industry. The operating conditions in media heated up to 70°C and containing Cl- and SO4 ions and solid particles produce high erosive and corrosive wear. The work proposes an application of the σ phase as a component of precipitation strengthening mechanism in order to increase the functional properties of the material. The paper presents the results of examination of the kinetics of σ phase precipitation at a temperature of 800°C and at times ranging from 30 to 180 minutes. Changes in the morphology of precipitates of the σ phase were determined using the value of shape factor R. Resistance to erosion-corrosion wear of duplex cast steel was correlated with the kinetics of sigma phase precipitating.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1; 17-20
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New look at the process of reclamation of moulding sands
Autorzy:
Dobosz, S. M.
Major-Gabryś, K.
Hosadyna, M.
Powiązania:
https://bibliotekanauki.pl/articles/380262.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innowacyjne materiały odlewnicze
innowacyjne technologie odlewnicze
masa formierska
innovative foundry materials
innovative foundry technologies
moulding sand
reclaim
ester hardener
Opis:
This paper presents a new perspective on the issue of reclamation of moulding and core sands. Taking as a premise that the reclamation process must remain on the surface of grains some not separated binding materials rests, it should be chosen the proper moulding sand's composition that will be least harmful for the reclaim quality. There are two different moulding and core sands taken into examinations. The researches prove that a small correction of their compositions (hardener type) improves the quality of the received reclaims. Carried out in this article studies have shown that such an approach to the problem of reclamation of the moulding and core sands is needed and reasonable.
Źródło:
Archives of Foundry Engineering; 2012, 12, 3; 19-24
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The structure of the silumin coat on alloy cast steels
Autorzy:
Szymczak, T.
Powiązania:
https://bibliotekanauki.pl/articles/382899.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innowacyjne technologie odlewnicze
powłoka zanurzeniowa
staliwo stopowe
silumin
innovative casting technologies
dip coating
alloy cast steel
Opis:
The work presents the analysis results of the structure of the coat obtained by dipping in silumin AlSi5 of two grades of alloy cast steel: GX6CrNiTi18-10 (LH18N9T) and GX39Cr13 (LH14). The temperature of the silumin bath was 750-5 C, and the hold-up time of the cast steel element [...] = 180 s. The absolute thickness of the coat obtained in the given conditions was g = 104 [...] on cast steel GX6CrNiTi18-10 and g = 132 [...] on GX39Cr13. The obtained coat consisted of three layers of different phase structure. The first layer from the base [...] was constructed of the phase AlFe including Si and alloy additives of the tested cast steel grades: Cr and Ni (GX6CrNiTi18-10) and Cr (GX39Cr13). The second layer [...] of intermetallic phases AlFe which also contains Si and Cr crystallizes on it. The last, external layer 'g2' of the coat consists of the silumin containing the intermetallic phases AlFeSi which additionally can contain alloy additives of the cast steel. It was shown that there were no carbides on the coat of the tested cast steels which are the component of their microstructure, as it took place in the case of the coat on the high speed steels.
Źródło:
Archives of Foundry Engineering; 2012, 12, 2; 215-220
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of reclamability of molding sands with new inorganic binders
Autorzy:
Izdebska-Szanda, I.
Baliński, A.
Angrecki, M.
Powiązania:
https://bibliotekanauki.pl/articles/382753.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innowacyjne materiały odlewnicze
innowacyjne technologie odlewnicze
spoiwo nieorganiczne
wytrzymałość
innovative foundry material
innovative foundry technologies
inorganic binders
reclamation
reclamability
strength
Opis:
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 binders for casting nonferrous metals. Good knocking out properties of the sands is directly related to the waste sands reclamability, which is a necessary condition of effective waste management. Reclamation of moulding and core sands is a fundamental and effective way to manage waste on site at the foundry, in accordance with the Environmental Guidelines. Therefore, studies of reclamation of waste moulding and core sands with new types of inorganic binders (developed within the framework of the project) were carried out. These studies allowed to determine the degree of recovery of useful, material, what the reclaimed sand is, and the degree of its use in the production process. The article presents these results of investigation. They are a part of broader research programme executed under the project POIG.01.01.02-00-015/09 'Advanced materials and technologies'.
Źródło:
Archives of Foundry Engineering; 2012, 12, 2; 35-40
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rapid Prototyping Technology Using for Casting Process of Mini Turbine Runner
Autorzy:
Hościło, B
Kaczyński, R.
Skorulski, G.
Powiązania:
https://bibliotekanauki.pl/articles/383216.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technologies
innovative foundry materials
rapid prototyping
ceramic moulds
miniturbine runner
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
formy ceramiczne
Opis:
The previous mini-hydrogenator rotors’ prototypes were made of ABS thermoplastic material with use of fused deposition modelling (FDM). However, there is a need for such rotors made of metallic materials with higher strength. In paper three dimensional printing (3DP) as rapid prototyping technology, was presented, to execute a shell mould of rotor prototype. In initial phase, the moulds were prepared which allow to cast a simple geometric solid with different alloys, for comparative reasons. The form of rotor and testing cast moulds were designed using universal CAD environment and printed composite using material zp151 (Calcium sulfate hemihydrate) with a binder zb63 (2- pyrrolidone) for preparation of colourful presentation models or casting models. The suitability of technology usage with alloys of copper , aluminium and zinc, was analyzed. The strength of the mould during casting, a material resistant to high temperature, the quality of received casting and its surface roughness were assumed as the comparative parameters which characterized method.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1 spec.; 83-86
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Tendency of Moulding Sands to Generate Core Cracks
Autorzy:
Grabarczyk, A.
Dobosz, S. M.
Kusiński, J.
Major-Gabryś, K.
Powiązania:
https://bibliotekanauki.pl/articles/380432.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technologies
innovative foundry materials
moulding sand
binder
elasticity
cracking
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
masa formierska
spoiwo
Opis:
The constant growth of foundry modernization, mechanization and automation is followed with growing requirements for the quality and parameters of both moulding and core sands. Due to this changes it is necessary to widen the requirements for the parameters used for their quality evaluation by widening the testing of the moulding and core sands with the measurement of their resistance to mechanical deformation (further called elasticity). Following article covers measurements of this parameter in chosen moulding and core sands with different types of binders. It focuses on the differences in elasticity, bending strength and type of bond destruction (adhesive/cohesive) between different mixtures, and its connection to the applied bonding agent. Moulding and cores sands on which the most focus is placed on are primarily the self-hardening moulding sands with organic and inorganic binders, belonging to the group of universal applications (used as both moulding and core sands) and mixtures used in cold-box technology.
Źródło:
Archives of Foundry Engineering; 2018, 18, 1; 157-161
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elasticity of Moulding Sands – a Method of Reducing Core Cracking
Autorzy:
Dobosz, S. M.
Grabarczyk, A.
Major-Gabryś, K.
Powiązania:
https://bibliotekanauki.pl/articles/380966.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technologies
innovative foundry materials
moulding sand
binder
elasticity
cracking
innowacyjne technologie odlewnicze
innowacyjne materiały
piasek formierski
spoiwo
elastyczność
Opis:
This paper focuses on mechanical properties of self hardening moulding sands with furfuryl and alkyd binders. Elasticity as a new parameter of moulding sands is investigated. With the use of presented testing equipment it is possible to determine force kinetics and deformation of moulding sand in real time. The need for this kind of study comes from the modern casting industry. New foundries can be characterized with high intensity of production which is correlated with high level of mechanization and automatization of foundry processes. The increasingly common use of manipulators in production of moulds and cores can lead to generation of new types of flaws, caused by breakage in moulds and cores which could occur during mould assembly. Hence it is required that moulds and cores have high resistance to those kinds of factors, attributing it with the phenomenon of elasticity. The article describes the theoretical basis of this property, presents methods of measuring and continues earlier research.
Źródło:
Archives of Foundry Engineering; 2017, 17, 1; 31-36
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Casting routes for porous metals production
Autorzy:
Lichý, P.
Bednarova, V.
Elbel, T.
Powiązania:
https://bibliotekanauki.pl/articles/382433.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
rozwój produktu
pianka metalowa
innovative foundry technologies
innovative foundry material
product development
metal foams
Opis:
The last decade has seen growing interest in professional public about applications of porous metallic materials. Porous metals represent a new type of materials with low densities, large specific surface, and novel physical and mechanical properties, characterized by low density and large specific surface. They are very suitable for specific applications due to good combination of physical and mechanical properties such as high specific strength and high energy absorption capability. Since the discovery of metal foams have been developed many methods and techniques of production in liquid, solid and gas phases. Condition for the use of metal foams - advanced materials with unique usability features, are inexpensive ways to manage their production. Mastering of production of metallic foams with defined structure and properties using gravity casting into sand or metallic foundry moulds will contribute to an expansion of the assortment produced in foundries by completely new type of material, which has unique service properties thanks to its structure, and which fulfils the current demanding ecological requirements. The aim of research conducted at the department of metallurgy and foundry of VSB-Technical University Ostrava is to verify the possibilities of production of metallic foams by conventional foundry processes, to study the process conditions and physical and mechanical properties of metal foam produced. Two procedures are used to create porous metal structures: Infiltration of liquid metal into the mold cavity filled with precursors or preforms and two stage investment casting.
Źródło:
Archives of Foundry Engineering; 2012, 12, 1; 71-74
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
3DP Technology for the Manufacture of Molds for Pressure Casting
Autorzy:
Skorulski, G.
Powiązania:
https://bibliotekanauki.pl/articles/383141.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative materials
innovative casting technologies
rapid prototyping
ceramic mold
pressure casting
materiały innowacyjne
innowacyjne technologie odlewnicze
prototypy
formy ceramiczne
odlewanie ciśnieniowe
Opis:
The paper presents the use of rapid prototyping technology of three dimensional printing (3DP) to make a prototype shell casting mold. In the first step, for identification purposes, a mold was prepared to enable different alloys to be cast. All molds being cast were designed in a universal CAD environment and printed with the zp151 composite material (Calcium sulfate hemihydrate) with a zb63 binder (2-pyrrolidone). It is designated to be used to prepare colourful models presenting prototypes or casting models and molds. The usefulness of 3DP technology for use with copper alloys, aluminum and zinc was analyzed. The strength of the mold during casting was assumed as a characteristic comparative feature in the material resistance to high temperature, the quality of the resulting casting and its surface roughness. Casting tests were carried out in vacuum – pressure casting. The casting programs applied, significantly increased the quality of castings and enabled precise mold submergence. Significant improvement was noted in the quality compared to the same castings obtained by gravity casting.
Źródło:
Archives of Foundry Engineering; 2016, 16, 3; 99-102
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 95

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