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    Wyświetlanie 1-7 z 7
    Tytuł:
    Impact of analysis method on evaluation of ceramic mould surface microgeometry in the lost wax process
    Autorzy:
    Matysiak, H.
    Haratym, R.
    Kwapisz, J.
    Kłębczyk, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/379613.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    surface microgeometry
    ceramic mould
    lost wax process
    mikrogeometria powierzchni
    forma ceramiczna
    metoda traconego wosku
    Opis:
    In this article two methods of ceramic mould surface microgeometry analysis were presented. First was a contact method, in which Profilometer S3P produced by Perthen Mahr was used. In second optical method optical profiler Veeco NT 9300 was used for surface microgeometry analysis. Evaluation of the results gathered with those methods was made. It was found that optical analysis method of surface microgeometry give better research possibilities (it’s more optimal).
    Źródło:
    Archives of Foundry Engineering; 2011, 11, 3 spec.; 131-134
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation criteria of wax pattern strength tests and their role in forecasting the shape accuracy of wax patterns
    Autorzy:
    Haratym, R.
    Biernacki, R.
    Lewiński, J.
    Kwapisz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/381367.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    pattern strength
    lost wax casting
    pattern test
    sustainability
    recycling
    wzór wytrzymałościowy
    metoda traconego wosku
    test wytrzymałościowy
    recykling
    Opis:
    This research paper will present and analyze selected testing of wax patterns - bending strength test, test of resistance to creep and penetration hardness test. Evaluation of these tests will be carried out in terms of the shape accuracy of wax patterns. Additionally, statistical evaluation will be carried out of relationships between selected parameters of previously mentioned tests. Standard bending tests will be statistically evaluated and compared with two other test methods conducted on corresponding patterns. Particular attention will be given to creep resistance, which is a very useful test method for assessing changes in the shape of complex patterns in the function of time and temperature. At the same time an evaluation of hardness tests of wax patterns will be carried out with usage of appropriate samples or by direct examination of the production patterns.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 4; 49-52
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Quality of Steel Castings in Terms of Precision Ceramic Mould Structure
    Autorzy:
    Biernacki, R.
    Haratym, R.
    Kwapisz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/379806.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    lost wax casting
    casting surface microgeometry
    ceramic mould structure
    metoda traconego wosku
    mikrogeometria powierzchni
    powierzchnia odlewu
    forma ceramiczna
    Opis:
    In the opinion of metrologists, technologists and trybologists surface microgeometry is one of the most important factors affecting the performance characteristics of the machine parts (resistance to wear, sliding and lubricating properties, durability and tightness of joints, fatigue strength, corrosion resistance, etc.). The analysis was made of the ceramic mould elements structure influence on the microgeometry of steel castings surface and their dimensional accuracy. To assess the structure of the ceramic mould previous studies made with usage of computer tomography where used, those studies highlight the ceramic mould structure anisotropy and its properties.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 1 spec.; 9-12
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Non-ferrous Metals Precision Casting Shape Accuracy in Terms of Ceramic Moulds Anisotropic Material Properties
    Autorzy:
    Biernacki, R.
    Haratym, R.
    Kwapisz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/380660.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    casting shape accuracy
    lost wax casting
    ceramic mould
    anisotropy properties
    dokładność kształtu
    metoda traconego wosku
    forma ceramiczna
    własności anizotropowe
    Opis:
    Shape accuracy analysis of aluminum alloy castings was made in function of ceramic mould properties. Taken it to account was anisotropy of those properties, including influence of ceramic mould properties on the porosity of castings. Ceramic moulds strains, which occur in sintering phase, were evaluated with taking into account the design and production process.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 1 spec.; 5-8
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Impact of the Multilayer Ceramic Moulds Quality on the Steel Precision Castings Dimensional Accuracy
    Autorzy:
    Haratym, R.
    Biernacki, R.
    Kwapisz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/379697.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    lost wax casting
    dimensional accuracy
    multilayer ceramic mould
    ceramic mould expansion
    metoda traconego wosku
    dokładność wymiarowa
    forma wielowarstwowa
    forma ceramiczna
    Opis:
    Results of analysis presented in this paper were based on analysis of casts made especially for this research purpose and related to actual cast – industrial. The evaluation of the dimensional accuracy of casts was made in relation to the pressure of the liquid metal with consideration of the ceramic mould temperature. Ceramic moulds used in these analyses were made from crystalline quartz with an aqueous colloidal silica binder containing polymers (KK), and ethyl silicate (KE).
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 2 spec.; 27-30
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ceramic Moulds for Precision Casting in the Bronze Age and Computer Reconstruction of the Casts
    Autorzy:
    Garbacz-Klempka, A.
    Kozana, J.
    Piekoś, M.
    Kwak, Z.
    Długosz, P.
    Stolarczyk, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/382197.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    non-destructive testing
    archaeometallurgy
    casting mould
    lost wax molding
    reconstruction
    XRF
    computer visualization
    badania nieniszczące
    formy odlewnicze
    metoda traconego wosku
    wizualizacja komputerowa
    Opis:
    The casting workshop in Grzybiany, in Lower Silesia (SW Poland) is a valuable source of knowledge on the development of casting techniques in the 7 – 6 centuries BC. Abundant evidence found on the archaeological site points to cast manufacturing by means of precision casting in ceramic moulds (lost-wax molding). The workshop is the biggest collection of moulds for bracelet, necklace and other smaller decorative artefacts in Poland. The aim of the work is to conduct the research of the moulds and casts with the view of performing a computer reconstruction of the casting moulds from the Bronze and Early Iron Age, based on the Grzybiany finds. As part of the work, both the microscopic structure and defectoscopic analyses of the casting moulds were performed. Chemical composition of the casts was tested using the X-ray fluorescence spectroscopy method. Based on these results and using computer modelling methods, a geometric visualisation was performed, which is the bases for preparing the visualisation of the process of pouring liquid metal into the moulds, reconstructing both the technology and the alloys used.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 1 spec.; 21-26
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temperature and microstructure characteristics of silumin casting AlSi9 made with investment casting method
    Autorzy:
    Pietrowski, S.
    Rapiejko, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/380337.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative foundry technology
    innovative foundry material
    lost wax molding
    investment casting
    silumin casting
    innowacyjna technologia odlewnicza
    innowacyjny materiał odlewniczy
    metoda traconego wosku
    odlewnictwo precyzyjne
    odlew siluminowy
    Opis:
    This work presents the research result of the temperature distribution and the microstructure in certain parts of the field-glass body frame casting made from silumin AlSi9 using the investment casting method in the ceramic mould. It was proved that the highest temperature of the silumin appears in the sprue in which the silumin is in the liquid-solid state, though the process of silumin crystallization in the casting is finished. It was stated that in certain elements of the casting the side opposite to the runner crystallizes and cools fastest. The differences in the rate of crystalline growth and cooling of certain casting elements cause different microstructure in them which can also influence the mechanic properties. It is necessary to state that the temperature of the initial heating of the ceramic mold equal to 60ºC guarantees obtaining of the castings without defects and of little porosity. Incomplete modification of the silumin with strontium causes silica precipitation to appear close to the spherical ones.
    Źródło:
    Archives of Foundry Engineering; 2011, 11, 3 spec.; 177-186
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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