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    Wyświetlanie 1-4 z 4
    Tytuł:
    Thin wall ductile iron castings: technological aspects
    Autorzy:
    Fraś, E.
    Górny, M.
    Kapturkiewicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/382730.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ductile iron
    thin wall
    wheel rim
    żeliwo sferoidalne
    odlewanie cienkościenne
    obręcz koła
    Opis:
    The paper discusses the reasons for the current trend of substituting ductile iron castings by aluminum alloys castings. However, it has been shown that ductile iron is superior to aluminum alloys in many applications. In particular it has been demonstrated that is possible to produce thin wall wheel rim made of ductile iron without the development of chills, cold laps or misruns. In addition it has been shown that thin wall wheel rim made of ductile iron can have the same weight, and better mechanical properties, than their substitutes made of aluminum alloys.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 1; 23-28
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Role of titanium in Thin Wall Vermicular Graphite Iron Castings production
    Autorzy:
    Górny, M.
    Kawalec, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/381718.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    vermicular graphite
    microstructure
    titanium
    thin walled casting
    grafit wermikularny
    mikrostruktura
    tytan
    odlewanie cienkościenne
    Opis:
    In this paper the effects of titanium addition in an amount up to 0.13 wt.% have been investigated to determine their effect on the microstructure and mechanical properties of Thin Wall Vermicular Graphite Iron Castings (TWVGI). The study was performed for thin-walled iron castings with 3-5 mm wall thickness and for the reference casting with 13 mm. Microstructural changes were evaluated by analyzing quantitative data sets obtained by image analyzer and also using scanning electron microscope (SEM). Metallographic examinations show that in thin-walled castings there is a significant impact of titanium addition to vermicular graphite formation. Thin-walled castings with vermicular graphite have a homogeneous structure, free of chills, and good mechanical properties. It may predispose them as a potential use as substitutes for aluminum alloy castings in diverse applications.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 2; 25-28
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A New Flexible and Economic Technology for the Low Pressure Sand Casting of Steel Alloys
    Autorzy:
    Krumm, Steven
    Scheidhauer, Nico
    Wolf, Gotthard
    Dommaschk, Claudia
    Powiązania:
    https://bibliotekanauki.pl/articles/2056022.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    low pressure counter gravity casting
    steel
    thin wall casting
    casting pipe
    odlewanie przeciwgrawitacyjne niskociśnieniowe
    stal
    odlewanie cienkościenne
    odlewanie rur
    Opis:
    Low pressure casting is a very well established process for the casting of aluminium alloys. In the field of ferrous materials, however, the process has so far only found a few applications. The crucial reasons for this are the low flexibility and poor economic efficiency of the existing technologies. Since 2016, a new technology has been developed at the Foundry Institute of the TU Bergakademie Freiberg, in which an induction crucible furnace can be used as a melting unit and, in combination with a cover including a casting pipe, as a casting unit. The new technology stands out from existing low-pressure casting technologies for ferrous materials, particularly in terms of its flexibility and cost-effectiveness. The main focus of the activities was the development of a casting pipe as well as the verification of its lifetime, the elaboration and verification of process parameters and sequences as well as the upscaling of the technology for an industrial application. In all considerations, the focus was on both the technical feasibility and the economic efficiency of the process. The result is extensive expertise that can be used in the future to offer a finished product for industrial applications as a plug-and-play solution together with an induction furnace construction company.
    Źródło:
    Journal of Casting & Materials Engineering; 2021, 5, 3; 45--52
    2543-9901
    Pojawia się w:
    Journal of Casting & Materials Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The control of solidification kinetics of the vacuum-cast thin-wall nickel-based superalloys by changing the geometrical characteristics of the ceramic mold
    Autorzy:
    Cygan, R.
    Szeliga, D.
    Rokicki, P.
    Sieniawski, J.
    Suchy, J. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/381982.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    nickel based superalloy
    ceramic mold
    thin walled casting
    investment casting
    nadstop niklu
    forma ceramiczna
    odlewanie cienkościenne
    odlewanie precyzyjne
    Opis:
    This paper provides an analysis of experimental research and results of investment casting process. Temperature field in a ceramic mold is one of the problems during numerical simulation. Reducing the costs of production in precision casting involves the reduction of scraps, which is one of the fundamental problems of the foundry industry. Reducing these costs is associated with optimization of precision casting technology of aircraft engines critical parts, including control of the solidification front in thin-walled castings of nickel super alloys cast in a vacuum. It is achieved by changing the geometrical characteristics of the ceramic mold. The results of the tests were used to optimize the industrial production of aircraft components in Precision Foundry of WSK Rzeszów. Temperature distribution gained in the conducted tests allowed verification and optimization of computer simulations.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 4; 21-28
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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