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Wyszukujesz frazę "Stefanski, Z." wg kryterium: Autor

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    Tytuł:
    Application of a New Innovative Ceramic Material for Investment Casting Technology
    Autorzy:
    Stefański, Z.
    Izdebska-Szanda, I.
    Angrecki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/381703.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative foundry technology
    innovative foundry materials
    investment casting technology
    olivine sand
    self-supporting mould
    Innowacyjna technologia odlewnicza
    innowacyjne materiały odlewnicze
    odlewnictwo
    forma odlewnicza
    Opis:
    The article presents the research results of a new ceramic material, in which olivine sand was used as the matrix. This new ceramic material was studied at the angle of its application in the investment casting technology. This material will be mainly used for preparing self-supporting moulds for castings made of aluminium and magnesium alloys, replacing the expensive material – molochite which has been used so far. The article presents the results of mineralogical research of olivine sand, as well as thermophysical research of the new ceramic material made on the olivine sand matrix. Comparative research of both materials was conducted, i.e. with the olivine and molochite matrix, then the assessment of the quality of the new ceramic material was made. What is more, the research results of the developed ceramics and its usefulness for the production of castings are presented.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 1 spec.; 51-56
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Wall Thickness on the Microstructure of Ductile Iron Castings Manufactured by the Inmold Process Using a Reaction Chamber
    Autorzy:
    Kamińska, J.
    Angrecki, M.
    Stefański, Z.
    Palma, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/382183.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ductile iron
    inmold process
    reaction chamber
    vertical mould parting plane
    cast iron microstructure
    żeliwo sferoidalne
    technologia inmold
    komora reakcyjna
    mikrostruktura żeliwa
    Opis:
    In the family of iron-based alloys, ductile iron enjoys the highest rate of development, finding application in various industries. Ductile iron or the cast iron with spheroidal graphite can be manufactured by various methods. One of them is the Inmold spheroidization process characterized by different technological solutions, developed mainly to increase the process efficiency. So far, however, none of the solutions has been based on the use of a reactor made outside the casting mould cavity. The method of spheroidization inside the casting mould using a reaction chamber developed at the Foundry Research Institute is an innovative way of cast iron treatment. The innovative character of this method consists in the use of properly designed and manufactured reactor placed in the casting mould cavity. Owing to this solution, the Inmold process can be carried out in moulds with both horizontal and vertical parting plane. The study presents the results of examinations of the microstructure of graphite precipitates and metal matrix of castings after spheroidization carried out by the Inmold process using a reactor and mould with vertical parting plane. Special pattern assembly was made for the tests to reproduce plates with wall thicknesses of 3; 5; 7; 10; 20 and 30 mm. The content of residual magnesium was determined for all tested castings, while for castings of plates with a wall thickness equal to or larger than 10 mm, testing of mechanical properties was additionally performed.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 4; 50-54
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparing the Effectiveness of Cast Iron Spheroidization by the Traditional Method and Using a Reaction Chamber (Reactor) Placed in Foundry Mould
    Autorzy:
    Stefański, Z.
    Kamińska, J.
    Pamuła, E.
    Angrecki, M.
    Palma, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/382171.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ductile iron
    spheroidization methods
    magnesium alloy
    evaluation of effectiveness
    żeliwo sferoidalne
    metody sferoidyzacji
    stop magnezu
    skuteczność sferoidyzacji
    ocena skuteczności
    Opis:
    The effectiveness of cast iron spheroidization with FeSiMg master alloy by the traditional method and using a reaction chamber placed in the cavity of foundry mould was compared. The method of cast iron treatment in mould cavity using a reaction chamber is an innovative technology developed by the Foundry Research Institute in Krakow. The effectiveness of the spheroidization process carried out by both methods was checked on a series of test castings. The article also presents the results of metallographic examinations and mechanical testing, including the discussion of magnesium yield and its assimilation rate.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 1; 191-195
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of the Process of Data Acquisition Regarding the Process of Casting from the Internet
    Autorzy:
    Wilk-Kolodziejczyk, D.
    Kluska-Nawarecka, S.
    Stefański, Z.
    Smolarek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/380058.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry industry
    casting process
    information technology
    crawler
    przemysł odlewniczy
    proces odlewania
    technologie informatyczne
    roboty indeksujące
    Opis:
    Access to up-to-date information on technology, innovation, source publications, and the materials and services offered in a particular industry is very important for both industrial plants and departmental research centres. It should be noted that obtaining such information using publicly available search engines such as Google, Yahoo!, Bing, Bindu (mainly used in China) is only apparently easy because, due to their versatility, they deliver results with great redundancy. This leads to the need to analyze large data sets by linguistic methods or "manually", which is very tedious and time consuming. In this situation, it was considered reasonable to undertake studies aimed at acquiring relatively simple IT tools, i.e. crawlers, which allow their users to selectively search for information in a particular problem area, which in this particular case is casting. The intention of this work was to collect and analyze the experimental material that would allow describing the characteristics of the above solutions from the point of view of the range of their application, the quality of the results achieved, and possible limitations and preferences taking into account user needs.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 1; 212-216
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of Additive "B" on the Properties of Foundry Sands with Hydrated Sodium Silicate Made by Floster Technology
    Autorzy:
    Izdebska-Szanda, I.
    Kamińska, J.
    Angrecki, M.
    Palma, A.
    Stefański, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/379919.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    moulding sand
    water glass
    floster S technology
    additive
    masa formierska
    szkło wodne
    technologia floster S
    dodatki do mas formierskich
    Opis:
    The aim of the study was to determine the applicability of a new product added to water glass-containing foundry sands hardened with ethylene glycol diacetate. The new additive designated by the symbol "B" is a composition of aqueous solutions of modified polyalcohols, improving the sand knocking out properties. The scope of studies included testing various mechanical and technological properties of foundry sand mixtures, such as permeability, friability, life cycle of cores and knocking out properties. In the technological studies, two types of water glass with different values of the silica modulus and density, designated as R145 and R150, were used. Moulding sands were prepared with the additive "B". For comparison, reference sands with water glass but without the additive "B" were also made. In Part I of the article, the results of studies of the effect of additive "B" on the properties of foundry sands with water glass hardened by CO2 blowing were discussed.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 2; 31-34
    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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