Temat: innovative casting materials - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Influence of the Mould Filling Conditions on the Quality of Castings Made of EN AC-44000 Alloy
Autorzy:: Nadolski, M.
Konopka, Z.
Łągiewka, M.
Zyska, A.
Powiązania:: https://bibliotekanauki.pl/articles/380440.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry materials
innovative foundry technologies
plaster mould
counter-gravity casting
vacuum casting
innowacyjne materiały odlewnicze
innowacyjne technologie odlewnicze
forma odlewnicza
odlewanie próżniowe
Opis:: The work deals with the influence of change in the filling conditions of the ceramic moulds with plaster binder on the presence of gaseous porosity and the microstructure of the achieved test castings with graded wall thickness. Castings made of EN AC-44000 alloy, produced either by gravity casting, or by gravity casting with negative pressure generated around the mould (according to the Vacumetal technology), or by counter-gravity casting were compared. The results of examinations concerning the density of the produced castings indicate that no significant change in porosity was found. The increased size of silicon crystals was found for the increased wall thicknesses due to the slower cooling and solidification of castings.
Źródło:: Archives of Foundry Engineering; 2014, 14, 2; 19-22
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Influence of the Method of Mould Filling on the Quality of Castings Made of EN AC-44000 or EN AC-46200 Alloy
Autorzy:: Nadolski, M.
Konopka, Z.
Łągiewka, M.
Zyska, A.
Powiązania:: https://bibliotekanauki.pl/articles/380335.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry materials
innovative foundry technologies
plaster mould
counter-gravity casting
vacuum casting
innowacyjne materiały odlewnicze
innowacyjne technologie odlewnicze
forma odlewnicza
odlewanie próżniowe
Opis:: The performed examinations concerning the process of filling the plaster ceramic moulds with aluminium alloys allowed to assess the influence of various methods of introducing the metal into the mould cavity on the macro- and microstructure of the obtained experimental castings. The comparison was performed for castings with graded wall thickness made either of EN AC-44000 alloy or of EN AC-46000 alloy, produced either by gravity casting, or by gravity casting with negative pressure generated around the mould (according to the Vacumetal technology), or by counter-gravity casting. It was found that the silicon crystals grow in size with an increase in wall thickness due to the slower cooling and solidification of castings.
Źródło:: Archives of Foundry Engineering; 2014, 14, 4; 73-76
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Investment Casting of AZ91 Magnesium Open-Cell Foams
Autorzy:: Kapłon, Honorata
Dmitruk, Anna
Naplocha, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/27314112.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: innovative foundry technologies
innovative materials
metal foams
investment casting
magnesium alloy
Innowacyjne technologie odlewnicze
innowacyjne materiały
pianki metalowe
stopy magnezu
Opis:: The process of investment casting of AZ91 magnesium alloy open-cell porosity foams was analysed. A basic investment casting technique was modified to enable the manufacturing of magnesium foams of chosen porosities in a safe and effective way. Various casting parameters (mould temperature, metal pouring temperature, pressure during metal pouring and solidifying) were calculated and analysed to assure complete mould filling and to minimize surface reactions with mould material. The foams manufactured with this method have been tested for their mechanical strength and collapsing behaviour. The AZ91 foams acquired in this research turned out to have very high open porosity level (>80%) and performed with Young’s modulus of ~30 MPa on average. Their collapsing mechanism has turned out to be mostly brittle. Magnesium alloy foams of such morphology may find their application in fields requiring lightweight materials of high strength to density ratio or of high energy absorption properties, as well as in biomedical implants due to magnesium’s high biocompatibility and its mechanical properties similar to bone tissue.
Źródło:: Archives of Foundry Engineering; 2023, 23, 1; 11--16
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Analysis of Crystallization Process of Intensive Cooled AlSi20CuNiCoMg Alloy
Autorzy:: Władysiak, R.
Kozuń, A.
Dębowska, K.
Pacyniak, T.
Powiązania:: https://bibliotekanauki.pl/articles/379541.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technologies
innovative foundry materials
casting die cooling
water mist
silumin
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
odlewanie kokilowe
mgła wodna
Opis:: The work is a continuation of research concerning the influence of intensive cooling of permanent mold in order to increase the casting efficiency of aluminium alloys using the multipoint water mist cooling system. The paper presents results of investigation of crystallization process and microstructure of multicomponent synthetic hypereutectic alloy AlSi20CuNiCoMg. The study was conducted for unmodified silumin on the research station allowing the cooling of the special permanent sampler using a program of computer control. Furthermore the study used a thermal imaging camera to analyze the solidification process of multicomponent alloy. The study demonstrated that the use of mold cooled with water mist stream allows in wide range to form the microstructure of hypereutectic multicomponent silumin. It leads to higher homogeneity of microstructure and refinement of crystallizing phases of casting.
Źródło:: Archives of Foundry Engineering; 2017, 17, 2; 137-144
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The Microstructure and Properties of the Bimetallic AZ91/AlSi17 Joint Produced by Compound Casting
Autorzy:: Mola, R.
Bucki, T.
Powiązania:: https://bibliotekanauki.pl/articles/381472.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technologies
innovative foundry materials
casting process
microstructure
mechanical properties
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
proces odlewania
mikrostruktura
właściwości mechaniczne
Opis:: Bimetallic AZ91/AlSi17 samples were produced by compound casting. The casting process involved pouring the AZ91 magnesium alloy heated to 650ºC onto a solid AlSi17 aluminum alloy insert placed in a steel mould. Prior to casting, the mould with the insert inside was heated to about 370ºC. The bonding zone formed between AZ91 and AlSi17 had a thickness of about 200 μm; it was characterized by a non-homogeneous microstructure. Two different areas were distinguished in this zone: the area adjacent to the AZ91 and the area close to the AlSi17. In the area closest to the AZ91 alloy, a eutectic composed of an Mg17Al12 intermetallic phase and a solid solution of Al in Mg was observed. In bonding zone at a certain distance from the AZ91 alloy an Mg2Si phase co-occurred with the eutectic. In the area adjacent to the AlSi17 alloy, the structure consisted of Al3Mg2, Mg17Al12 and Mg2Si. The fine Mg2Si phase particles were distributed over the entire Mg-Al intermetallic phase matrix. The microhardness of the bonding zone was much higher than those of the materials joined; the microhardness values were in the range 203-298 HV. The shear strength of the AZ91/AlSi17 joint varied from 32.5 to 36 MPa.
Źródło:: Archives of Foundry Engineering; 2018, 18, 1; 71-76
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Analysis of Defects in Castings Cast by Rheocasting Method SEED
Autorzy:: Bryksi Stunova, B.
Bryksi, V.
Powiązania:: https://bibliotekanauki.pl/articles/381889.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: solidification process
innovative foundry technologies
innovative foundry materials
rheocasting
casting defects
simulation
krzepnięcie
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
wady odlewów
symulacja
Opis:: The paper analyses specific defects of castings produced by semi-solid casting process, especially rheocasting method SEED, which uses mechanical swirling for reaching proper structure in semisolid state with high content of solid fraction. Heat treated alloy AlSi7Mg0.3 was applied for producing an Engine Bracket casting part. For observing structure, metallographic observation by light and SEM microscopy was used. To analyse the process, software ProCAST was used to simulate the movements in shot chamber and filling of the mold.
Źródło:: Archives of Foundry Engineering; 2016, 16, 3; 15-18
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Influence of the Selected Factors on the Ceramic Moulds Permeability Determined by the New Method
Autorzy:: Kolczyk, J.
Zych, J.
Jamrozowicz, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/382719.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technologies
innovative foundry materials
investment casting technology
permeability
ceramic moulds
innowacyjne technologie odlewnicze
materiały odlewnicze
technologia odlewania
przepuszczalność
formy ceramiczne
Opis:: Ceramic moulds in the investment casting technology are made by depositing on the wax pattern subsequent layers of a liquid ceramic mass together with a granular matrix. A quality of castings depends on building of individual layers. The results of the ceramic moulds permeability obtained by means of the newly developed measuring method are presented in the hereby paper. Due to the applied solution it is possible to perform measurements also for the first layers which have the decisive influence on a permeability of the whole multilayer ceramic mould. Investigations of the influence of the matrix grain size and annealing temperature on the permeability of ceramic moulds were carried out.
Źródło:: Archives of Foundry Engineering; 2015, 15, 1 spec.; 55-60
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Effect of Water Mist Cooling on Microstructure of Hypereutectic Al-Si Alloy
Autorzy:: Władysiak, R.
Kozuń, A.
Powiązania:: https://bibliotekanauki.pl/articles/382973.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technologies
innovative foundry materials
casting die cooling
water mist
hypereutectic silumin
microstructure
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
chłodzenie
silumin nadeutektyczny
mikrostruktura
Opis:: The work is a continuation of research on the use water mist cooling in order to increase efficiency of die-casting aluminum alloys using multipoint water mist cooling system. The paper presents results of investigation of crystallization process and microstructure of synthetic hypereutectic AlSi20 alloy. Casts were made in permanent mold cooled with water mist stream. The study was conducted for unmodified AlSi20 alloy and modified with phosphorus, titanium and boron on the research station allowing sequential multipoint cooling using a dedicated program of computer control. The study demonstrated that the use of mold cooled with water mist stream allows the formation of the microstructure of hypereutectic silumins. A wide range of solidification temperature of hypereutectic silumins increases the potential impact of changes in the cooling rate on a size, a number and a morphology of preeutectic silicon and eutectic α+β (Al+Si).
Źródło:: Archives of Foundry Engineering; 2014, 14, 3; 117-122
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: New investigation method of the permeability of ceramic moulds applied in the investment casting technology
Nowa metoda oceny przepuszczalności form ceramicznych stosowanych w technologii wytapianych modeli
Autorzy:: Zych, J.
Kolczyk, J.
Snopkiewicz, T.
Powiązania:: https://bibliotekanauki.pl/articles/379502.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technologies
innovative foundry materials
investment casting technology
permeability
ceramic mould
innowacyjne materiały odlewnicze
innowacyjne technologie odlewnicze
technologia wytapianych modeli
przepuszczalność
forma ceramiczna
Opis:: The new investigation method of a permeability of ceramic moulds applied in the investment casting technology, is presented in the paper. Some concepts of performing permeability measurements are shown. Investigations in which the influence of the solid phase fraction in the liquid ceramic moulding sand (LCMS) on a permeability of a multi-layer ceramic mould were performed and discussed. The permeability was estimated during two the most important stages of the technological process: in the first – after wax melting and in the second – after mould annealing. Also an influence of the matrix grain sizes (material for sprinkling) on a ceramic mould permeability was estimated.
W pracy przedstawiono nową metodę badań przepuszczalności form ceramicznych stosowanych w technologii wytapianych modeli. Zaprezentowano koncepcje prowadzenia pomiarów przepuszczalności form ceramicznych. Wykonano badania, w których określono wpływ udziału fazy stałej w ciekłej masie ceramicznej (CMC) na przepuszczalność wielowarstwowej formy ceramicznej. Oceniono przepuszczalność w dwóch najważniejszych etapach procesu technologicznego: w pierwszym - po wytopienia wosku oraz w drugim - po wyżarzeniu formy. Oceniono również wpływ wielkości ziarna osnowy, zwanej potocznie „obsypką” (materiałem do obsypywania), na przepuszczalność formy ceramicznej.
Źródło:: Archives of Foundry Engineering; 2013, 13, 2; 107-112
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Moulding sands with new inorganic binders - ecology assessment in the aspect of work environment
Autorzy:: Szanda, I.
Żmudzińska, M.
Faber, J.
Perszewska, K.
Powiązania:: https://bibliotekanauki.pl/articles/380365.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innowacyjne materiały odlewnicze
innowacyjne technologie odlewnicze
odlewnictwo
masa formierska
spoiwo nieorganiczne
środowisko pracy
innovative foundry materials
innovative foundry technologies
casting
moulding sand
inorganic binders
work environment
Opis:: The development of economy and industry introducing new technologies and materials often means the increased threat of occurrence of factors harmful to humans and environment. Workers employed in foundries as mould pourers are the group of high professional risk. Foundry moulding sands when poured with liquid metal are a source of the emission of harmful, toxic and carcinogenic (benzene, PAHs) compounds. The paper presents the results of studies on the concentration of chemical compounds emitted in the process of casting aluminium alloy and brass using moulding sands with the new inorganic binders. The specific values of the exposure indices were compared with the limit values. This enabled an assessment of the impact of moulding sands on work environment. The obtained results were compared with the values of contaminants emitted when pouring foundry moulds made from furan sands and bentonite sands with an addition of coal dust.
Źródło:: Archives of Foundry Engineering; 2012, 12, 3; 117-122
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Influence of Modification in Centrifugal Casting on Microstructure and Mechanical Properties of Silicon Bronzes
Autorzy:: Garbacz-Klempka, A.
Kozana, J.
Piękoś, M.
Papaj, P.
Perek-Nowak, M.
Powiązania:: https://bibliotekanauki.pl/articles/379593.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technologies
innovative foundry materials
CuSi alloys
centrifugal casting
microstructure
mechanical properties
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
stop Cu-Si
odlewanie odśrodkowe
mikrostruktura
właściwości mechaniczne
Opis:: Silicon bronzes are characterised by good mechanical properties and by high corrosion and mechanical wear resistance. The process of sleeve casting by means of the centrifugal casting with the horizontal axis of the mould rotation was analysed. The assessment of the influence of modification and centrifugal casting parameters on the microstructure and mechanical properties of alloys was carried out in the hereby work. Zirconium was applied as a modifier. Speed of rotation of the mould was the variable parameter of the centrifugal casting. The investigation results were summarised on the basis of the microstructure analysis and mechanical properties determination: UTS, proof stress, A10 and BHN. The experiment aimed at finding the information in which way the modification together with changing the pouring parameters influence the mechanical properties of the CuSi3Zn3FeMn alloy.
Źródło:: Archives of Foundry Engineering; 2018, 18, 3; 11-18
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Lost Cores for High-Pressure Die Casting
Autorzy:: Jelinek, P.
Adámková, E.
Powiązania:: https://bibliotekanauki.pl/articles/379956.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technologies
innovative foundry materials
product development
salt cores
high-pressure die casting
squeezing-injection
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
rozwój produktów
odlewnictwo wysokociśnieniowe
rdzeń
Opis:: Development of salt cores prepared by high-pressure squeezing and shooting with inorganic binders has shown a high potential of the given technology even for high-pressure casting of castings. Strength, surface quality of achieved castings, and solubility in water become a decisive criterion. The shape and quality of grain surface particularly of NaCl – cooking salts that can be well applied without anticaking additives has shown to be an important criterion. Thus the salt cores technology can cover increasingly growing demands for casting complexity especially for the automobile industry.
Źródło:: Archives of Foundry Engineering; 2014, 14, 2; 101-104
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Kinetics of hardening and drying of ceramic moulds with the new generation binder – colloidal silica
Autorzy:: Zych, J.
Kolczyk, J.
Powiązania:: https://bibliotekanauki.pl/articles/381420.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technologies
innovative foundry materials
colloidal binder
investment casting
drying rate
technological factor
innowacyjna technologia odlewnicza
innowacyjne materiały odlewnicze
spoiwo koloidalne
szybkość suszenia
czynnik technologiczny
Opis:: The influence of selected factors on drying ceramic moulds applied in the investment casting technology was determined by the gravimetric method. Moulds produced of ceramic sands based on the new generation binders – colloidal silica, were investigated. It was found that each successive layer, of a similar thickness, is drying longer than the previous one. The drying time of layers forming closed spaces is several times longer as compared with drying open surfaces (external). Grain size of matrix used for moulds sprinkling has none significant influence on drying rates.
Źródło:: Archives of Foundry Engineering; 2013, 13, 4; 112-116
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Casting ductile iron in layer moulds made from ecological sands
Autorzy:: Rączka, M.
Gandurski, K.
Isendorf, B.
Powiązania:: https://bibliotekanauki.pl/articles/380228.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innowacyjne materiały odlewnicze
innowacyjne technologie odlewnicze
ochrona środowiska
żeliwo sferoidalne
forma dwuwarstwowa
innovative foundry materials
innovative foundry technologies
environmental protection
ductile iron
two layer moulds
casting examinations
Opis:: The article contains the results of tests performed under the target project in Hardtop Foundry Charsznica. The objective of the tests and studies was to develop a technology of making high-quality ductile iron castings, combined with effective means of environmental protection. The studies presented in this article related to castings weighing from 1 to 300 kg made from ductile iron of grades 400-15 and 500-7, using two-layer moulds, where the facing and core sand was the sand with an alkaline organic binder, while backing sand was the sand with an inorganic geopolymer binder. A simplified method of sand reclamation was applied with possible reuse of the reclaim as an addition to the backing sand. The cast iron spheroidising treatment and inoculation were selected taking into account the specific conditions of Hardtop Foundry. A pilot batch of castings was made, testing the gating and feeding systems and using exothermic sleeves on risers. The study confirmed the validity of the adopted concept of making ductile iron castings in layer moulds, while maintaining the content of sand with an organic binder at a level of maximum 15%.
Źródło:: Archives of Foundry Engineering; 2012, 12, 3; 99-104
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Using of Technology Semisolid Squeeze Casting by Different Initial States of Material
Autorzy:: Martinec, D.
Pastirčák, R.
Kantoríková, E.
Powiązania:: https://bibliotekanauki.pl/articles/379567.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technologies
innovative foundry materials
solidification process
squeeze casting
aluminium alloy
crystallisation under pressures
innowacyjne technologie odlewnicze
innowacyjne materiały odlewnicze
proces krzepnięcia
wyciskanie
stop aluminium
krystalizacja pod ciśnieniem
Opis:: The paper deals with the effect of heating of various prepared batch materials into semisolid state with subsequent solidification of the cast under pressure. The investigated material was a subeutectic aluminium alloy AlSi7Mg0.3. The heating temperature to the semisolid was chosen at 50% liquid phase. The used material was prepared in a variety of ways: heat treatment, inoculation and by squeeze casting. Also the influence of the initial state of material on inheritance of mechanical properties and microstructure was observed. The pressure was 100 MPa. Effect on the resulting casting structure, alpha phase distribution and eutectic silicon was observed. By using semisolid squeeze casting process the mechanical properties and microstructures of the casts has changed. The final microstructure of the casts is very similar to the microstructure that can be reached by technology of thixocasting. The mechanical properties by using semisolid squeeze casting has been increased except the heat treated material.
Źródło:: Archives of Foundry Engineering; 2020, 20, 1; 117-121
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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