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    Wyświetlanie 1-5 z 5
    Tytuł:
    The Aging Time Effects of the Pre-expanded Polystyrene on the Patterns Mechanical Properties
    Autorzy:
    Buczkowska, K.
    Pacyniak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/381049.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative casting technology
    Innovative casting material
    foundry
    lost foam
    model of polystyrene
    casting
    innowacyjna technologia odlewnicza
    innowacyjny materiał odlewniczy
    tracona piana
    polistyrenowy model odlewniczy
    Opis:
    The aging granulate is to activate the blowing agent during the manufacturing process to granulate models can re-expand and shape the model of well-sintered granules, smooth surface and a suitable mechanical strength. The article presents the results of studies which aim was to determine the optimum time for aging pre-foamed granules for pre-selected raw materials. The testing samples were shaped in an autoclave, with constant parameters sintering time and temperature. Samples were made at 30 minute intervals. Models have been subjected to flexural strength and hardness.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 1; 131-137
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of the Influence of Additions on the Formation of Microstructure of Al-Zn-Mg-Cu Alloys
    Autorzy:
    Pisarek, B. P.
    Czekaj, E.
    Pacyniak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/381528.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative casting material
    innovative casting technology
    Al-Zn-Mg-Cu alloy
    TDA method
    hardness HB
    innowacyjny materiał odlewniczy
    innowacyjna technologia odlewnicza
    stop Al-Zn-Mg-Cu
    metoda ATD
    Opis:
    The article presents the investigations of 7xxx aluminium alloys performed by the method of thermal and derivational analysis. The studies made it possible to identify the effect of the changes in the Cu concentration, the total Zn and Mg weight concentrations and the Zn/Mg weight concentration ratio on their crystallization process: the cooling as well as the kinetics and dynamics of the thermal process of cooling and crystallization. Metallographic studies were performed on the microstructure of the examined alloys and their HB hardness was measured. The evaluation of the changes was presented in reference to the model alloys EN AW-7003 and EN AW-7010, whose microstructure under the conditions of thermodynamic equilibrium are described by the phase diagrams: Al-Zn-Mg and Al-Zn-Mg-Cu. The performed investigations confirmed that the hardness HB of the examined alloys is mainly determined by the reinforcement of the matrix αAl by the introduced alloy additions and the presence of phases Θ(Al2Cu) and S(Al2CuMg) rich in copper, as well as η(MgZn2), in the examined alloys' microstructure. The increase of the amount of intermetallic phases precipitated in the microstructure of the examined alloys is caused, beside Cu, by the characteristic change of Zn wt. concentration and Mg. It was proposed that the process of one-stage thermal treatment of the examined alloys be introduced at a temperature of up to tJ-20 °C, which will prevent the exceedance of the solidus temperature.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 4; 39-44
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected Technological Properties of Liquid Ceramic Slurries Used to Produce Moulds in the Replicast cs Technology
    Autorzy:
    Kaczorowski, R.
    Just, P.
    Pacyniak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/380254.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Innovative casting material
    innovative casting technology
    precision casting
    thin walled ceramic mould
    apparent viscosity
    replicast CS technology
    innowacyjny materiał odlewniczy
    innowacyjna technologia odlewnicza
    odlewanie precyzyjne
    forma ceramiczna cienkościenna
    lepkość pozorna
    technologia Replicast CS
    Opis:
    The study discusses the issues connected with the production of thin-walled ceramic slurry in the replicast cs technology. In the ceramic mould production process, a special role is played by the liquid ceramic slurry used to produce the first layer of the mould. The study examines selected technological properties of liquid ceramic slurries used to produce moulds in the replicas cs technology. The ceramic slurries for the tests were prepared based on the binders Ludox Px30 and Sizol 030, enriched with Refracourse flour. The wettability of the pattern's surface by the liquid ceramic slurry and the dependence of the apparent viscosity on the ceramic flour content in the mixture were determined. The wettability of the pattern surface by the liquid ceramic slurry was determined based on the measurement of the wetting angle. The angle was determined by means of an analysis of the computer image obtained with the use of a CDC camera.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 4; 190-194
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Inhibitor Coating of a Ceramic Mould on the Surface Quality of an AM60 Alloy Cast with Cr and V
    Autorzy:
    Pisarek, B. P.
    Rapiejko, C.
    Święcik, R.
    Pacyniak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/380855.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative material
    innovative technology
    surface roughness
    magnesium alloy
    solid inhibitor
    investment casting
    innowacyjny materiał
    technologia innowacyjna
    chropowatość powierzchni
    stop magnezu
    odlew precyzyjny
    Opis:
    The work presents the results of the investigations of the effect of inhibitors coated on the internal walls of a ceramic mould on the quality of the obtained casts made of the AM60 alloy containing additions of chromium and vanadium. In order to reduce the reactivity of magnesium alloy cast by the technology of investment casting with the material of the mould and the ambient atmosphere, solid inhibitors were applied in the form of a mixture of KBF4 and H3BO3 after the stage of mould baking and before the mould’s being filled with the liquid alloy. For the purpose of examining the effect of the inhibitors on the surface quality of the obtained casts, profilometric tests were performed and the basic parameters describing the surface roughness, Ra, Rz and Rm, were determined.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 3; 51-56
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Casting Die Cooling on Solidification Process and Microstructure of Hypereutectic Al-Si Alloy
    Autorzy:
    Władysiak, R.
    Kozuń, A.
    Pacyniak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/380676.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative foundry technology
    innovative foundry material
    casting die cooling
    water mist
    hypereutectic silumin
    innowacyjna technologia odlewnicza
    innowacyjny materiał odlewniczy
    odlewanie kokilowe
    mgła wodna
    silumin nadeutektyczny
    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 synthetic hypereutectic alloys: AlSi15 and AlSi19. Casts were made in permanent mold cooled with water mist stream. The study was conducted for unmodified silumins on the research station allowing the cooling of the special permanent probe using a program of computer control. Furthermore the study used a thermal imaging camera to analyze the solidification process of hypereutectic silumins. The study demonstrated that the use of mold cooled with water mist stream allows in wide range the formation of the microstructure of hypereutectic silumins. It leads to higher homogeneity of microstructure and refinement of crystallizing phases and also it increases subsequently the mechanical properties of casting.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 4; 175-180
    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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