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    Wyświetlanie 1-5 z 5
    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:
    Evaluation of synthetic gypsum recovered via wet flue-gas desulfurization from electric power plants for use in foundries
    Autorzy:
    Biernacki, R.
    Haratym, R.
    Kwapisz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/380264.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innowacyjne materiały odlewnicze
    odsiarczanie spalin
    gips syntetyczny
    forma gipsowa
    forma ceramiczna
    innovative foundry materials
    flue gas desulfurization (FGD)
    waste gypsum (synthetic)
    gypsum mould
    ceramic mould
    Opis:
    This article investigates possible use of waste gypsum (synthetic), recovered via flue-gas desulfurization from coal-fired electric power plants, in foundries. Energy sector, which in Eastern Europe is mostly composed from coal-fired electric power plants, is one of the largest producers of sulfur dioxide (SO2). In order to protect the environment and reduce the amount of pollution flue-gas desulfurization (FGD) is used to remove SO2 from exhaust flue gases of fossil-fuel power plants. As a result of this process gypsum waste is produced that can be used in practical applications. Strength and permeability tests have been made and also in-depth analysis of energy consumption of production process to investigate ways of preparing the synthetic gypsum for casting moulds application. This paper also assesses the chemical composition, strength and permeability of moulds made with synthetic gypsum, in comparison with moulds made with traditional GoldStar XL gypsum and with ceramic moulds. Moreover examination of structure of synthetic gypsum, the investigations on derivatograph and calculations of energy consumption during production process of synthetic gypsum in wet flue-gas desulfurization were made. After analysis of gathered data it's possible to conclude that synthetic gypsum can be used as a material for casting mould. There is no significant decrease in key properties, and on the other hand there is many additional benefits including low energy consumption, decreased cost, and decreased environmental impact.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 3; 5-8
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    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
      Wyświetlanie 1-5 z 5

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