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    Wyświetlanie 1-5 z 5
    Tytuł:
    Badania nad technologią odlewania ablacyjnego stopów aluminium
    Research on ablation casting technology for aluminium alloys
    Autorzy:
    Dudek, P.
    Fajkiel, A.
    Reguła, T.
    Bochenek, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/391807.pdf
    Data publikacji:
    2014
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Odlewnictwa
    Tematy:
    odlewanie ablacyjne
    stopy aluminium
    mikrostruktura
    ablation casting
    aluminum alloys
    microstructure
    Opis:
    W artykule przedstawiono wstępne wyniki badań nad technologią odlewania ablacyjnego. W ramach pracy opracowano założenia do budowy doświadczalnego stanowiska do zmodyfikowanej technologii odlewania ablacyjnego. Wykonano stanowisko, na którym przeprowadzono badania destrukcji formy piaskowej strumieniem wody pod wysokim ciśnieniem. Wpływ szybkiego chłodzenia odlewu podczas krzepnięcia na jego strukturę określono na podstawie badań rentgenograficznych i metalograficznych.
    The article presents preliminary results of research on ablation casting technology. The guidelines for the design of equipment to carry out the process are described. Based on the above mentioned instructions a test stand was developed and built. Many tests were performed concerning the influence of the water jet directed at a sand mould on its removal tendency. The effect of the cooling rate of tested cast parts on its microstructure were studied based on metallographic and radiographic tests.
    Źródło:
    Prace Instytutu Odlewnictwa; 2014, T. 54, nr 2, 2; 23-35
    1899-2439
    Pojawia się w:
    Prace Instytutu Odlewnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of Floster S Technology in Modified Ablation Casting of Aluminum Alloys
    Autorzy:
    Kamińska, J.
    Angrecki, M.
    Puzio, S.
    Hosadyna-Kondracka, M.
    Major-Gabryś, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/379813.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    moulding sands
    ablation casting
    water glass
    floster S
    mechanical properties of casting
    surface quality
    piaski formierskie
    odlewanie ablacyjne
    szklanka wody
    właściwości mechaniczne odlewu
    jakość powierzchni
    Opis:
    Ablation casting is a technological process in which the increased cooling rate causes microstructure refinement, resulting in improved mechanical properties of the final product. This technology is particularly suitable for the manufacture of castings with intricate shapes and thin walls. Currently, the ablation casting process is not used in the Polish industry. This article presents the results of strength tests carried out on moulding sands based on hydrated sodium silicate hardened in the Floster S technology, intended for ablation casting of the AlSi7Mg (AK7) aluminium alloy. When testing the bending and tensile strengths of sands, parameters such as binder and hardener content were taken into account. The sand mixtures were tested after 24h hardening at room temperature. The next stage of the study describes the course of the ablation casting process, starting with the manufacture of foundry mould from the selected moulding mixture and ending in tests carried out on the ready casting to check the surface quality, structure and mechanical properties. The results were compared with the parallel results obtained on a casting gravity poured into the sand mould and solidifying in a traditional way at ambient temperature.
    Źródło:
    Archives of Foundry Engineering; 2019, 4; 81-86
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of Phosphate Binder for Ablation Casting of AlSi7Mg Modified TiB Alloy
    Autorzy:
    Puzio, Sabina
    Kamińska, J.
    Major-Gabryś, K.
    Angrecki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2126893.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ablation casting technology
    alumina
    phosphate binder
    self-hardening sand
    inorganic binder
    odlewanie ablacyjne
    tlenek glinu
    spoiwo fosforanowe
    piaski samoutwardzalne
    spoiwo nieorganiczne
    Opis:
    The possibilities of using an inorganic phosphate binder for the ablation casting technology are discussed in this paper. This kind of binder was selected for the process due to its inorganic character and water-solubility. Test castings were made in the sand mixture containing this binder. Each time during the pouring liquid alloy into the molds and solidification process of castings, the temperature in the mold was examined. Then the properties of the obtained castings were compared to the properties of the castings solidifying at ambient temperature in similar sand and metal molds. Post-process materials were also examined - quartz matrix and water. It has been demonstrated that ablation casting technology promotes refining of the microstructure, and thus upgrades the mechanical properties of castings (Rm was raised about approx. 20%). Properties of these castings are comparable to the castings poured in metal moulds. However, the post-process water does not meet the requirements of ecology, which significantly reduces the possibility of its cheap disposal.
    Źródło:
    Archives of Foundry Engineering; 2022, 22, 1; 62--68
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Influence of Various Matrixes on the Strength Properties of Moulding Sands with Thermally Hardened Hydrated Sodium Silicate for the Ablation Casting Process
    Autorzy:
    Major-Gabryś, Katarzyna
    Puzio, Sabina
    Bryłka, Agata
    Kamińska, Jadwiga
    Powiązania:
    https://bibliotekanauki.pl/articles/2056023.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    innovative foundry technologies and materials
    moulding sand
    ablation casting
    water glass
    thermal curing
    innowacyjne technologie
    materiały odlewnicze
    piasek formierski
    odlewanie ablacyjne
    szkło wodne
    utwardzanie termiczne
    Opis:
    The essence of ablation casting technology consists in pouring castings into single-use moulds made from the mixture of sand and a water-soluble binder. After pouring the mould with liquid metal yet while the casting is still solidifying, the mould destruction (washing out, erosion) takes place using a stream of cooling medium, which in this case is water. This paper focuses on the selection of moulding sands with hydrated sodium silicate for moulds used in ablation casting. The research is based on the use of water glass 145 and 150 as binders. As part of the research, loose moulding mixtures based on two silica sands from different sand mines with different content of binders were prepared. The review of literature data and the results of own studies have shown that moulding sand with hydrated sodium silicate hardened by dehydration is characterized by sufficient strength properties to be used in the ablation casting process. Our own research also confirmed the possibility of using these sand mixtures in terms of both casting surface quality and sand reclamation. The results presented in this paper prove that both sand grains and types of binder tested may be used as components in moulding sands devoted to ablation casting.
    Źródło:
    Journal of Casting & Materials Engineering; 2021, 5, 2; 31--35
    2543-9901
    Pojawia się w:
    Journal of Casting & Materials Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Moulding Sand with Inorganic Cordis Binder for Ablation Casting
    Autorzy:
    Hosadyna-Kondracka, M.
    Major-Gabryś, K.
    Kamińska, J.
    Grabarczyk, A.
    Angrecki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/382039.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative foundry technology
    innovative foundry material
    ablation casting
    moulding sand
    inorganic binder
    thermal curing
    innowacyjna technologia odlewnicza
    innowacyjny materiał odlewniczy
    odlewanie ablacyjne
    masa formierska
    spoiwo nieorganiczne
    utwardzanie termiczne
    Opis:
    The essence of ablation casting technology consists in pouring castings in single-use moulds made from the mixture of sand and a water-soluble binder. After pouring the mould with liquid metal, while the casting is still solidifying, the mould destruction (washing out, erosion) takes place using a stream of cooling medium, which in this case is water. This paper focuses on the selection of moulding sands with hydrated sodium silicate for moulds used in the ablation casting. The research is based on the use of Cordis binder produced by the Hüttenes-Albertus Company. It is a new-generation inorganic binder based on hydrated sodium silicate. Its hardening takes place under the effect of high temperature. As part of the research, loose moulding mixtures based on the silica sand with different content of Cordis binder and special Anorgit additive were prepared. The reference material was sand mixture without the additive. The review of literature data and the results of own studies have shown that moulding sand with hydrated sodium silicate hardened by dehydration is characterized by sufficient strength properties to be used in the ablation casting process. Additionally, at the Foundry Research Institute in Krakow, preliminary semi-industrial tests were carried out on the use of Cordis sand technology in the manufacture of moulds for ablation casting. The possibility to use these sand mixtures has been confirmed in terms of both casting surface quality and sand reclamation.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 4; 110-115
    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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