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    Wyświetlanie 1-4 z 4
    Tytuł:
    Low pressure carburizing in a large-chamber device for high-performance and precision thermal treatment of parts of mechanical gear
    Autorzy:
    Wołowiec-Korecka, E.
    Korecki, M.
    Klimek, L.
    Kula, P.
    Brewka, A.
    Buczek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/103225.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    heat treatment
    vacuum carburizing
    lean manufacturing
    Opis:
    This paper presents the findings of research of a short-pulse low pressure carburizing technology developed for a new large-chamber furnace for high-performance and precision thermal treatment of parts of mechanical gear. Sections of the article discuss the novel constructions of the device in which parts being carburized flow in a stream, as well as the low-pressure carburizing experiment. The method has been found to yield uniform, even and repeatable carburized layers on typical gear used in automotive industry.
    Źródło:
    Advances in Science and Technology. Research Journal; 2017, 11, 1; 253-258
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Devices for modern vacuum heat treatment
    Autorzy:
    Korecki, M.
    Brewka, A.
    Wołowiec-Korecka, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/379303.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    heat treatment
    vacuum heat treatment
    furnace
    carburizing
    quenching
    low pressure carburizing
    nitriding
    advanced vacuum applications
    obróbka cieplna
    próżniowa obróbka cieplna
    piec
    nawęglanie
    hartowanie
    nawęglanie niskociśnieniowe
    azotowanie
    zaawansowane zastosowania próżniowe
    Opis:
    Purpose: A review regarding the devices for vacuum heat treatment is presented. Design/methodology/approach: Devices for modern heat treatment has been reviewed. The devices has been classified regarding the heat treatment (quenching, carburizing, nitriding, tempering and annealing). The possible application, materials and parts for heat treatment as well as parameters of the devices has been analysed. Findings: There is a wide range of modern vacuum heat treatment devices. All currently used heat and thermo-chemical treatments may be proceed in vacuum equipment. It is also in many cases preferable to use vacuum- because of economic reasons, better metallurgical results or environmental friendliness. Also software simulators which facilitates the planning of heat treatment are available with the equipment. Practical implications: Because of the industry expectations regarding efficiency, quality, economy and safety, vacuum equipment becoming the subject of wider and wider attention. In particular, aerospace and automotive industries pay a lot of attention to these aspects. The basic task of vacuum devices is fast, effective, environmentally friendly production of high quality machine parts. Originality/value: The synthetic presentation of modern devices for vacuum heat treatment was presented, in particular furnaces for quenching, carburizing, nitriding, tempering and annealing. The products characteristic and applications has been presented. Also equipment for some advanced vacuum applications has been presented. Modern software which complements the devices in terms of designing heat treatment processes has been described.
    Źródło:
    Archives of Materials Science and Engineering; 2019, 95, 2; 77-85
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of quenching temperature on distortions during the individual quenching method
    Autorzy:
    Wołowiec-Korecka, E.
    Stachurski, W.
    Zgórniak, P.
    Korecki, M.
    Brewka, A.
    Byczkowska, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818490.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    thermal treatment
    distortion
    quenching
    low-pressure carburizing
    obróbka termiczna
    zniekształcenie
    hartowanie
    nawęglanie niskociśnieniowe
    Opis:
    Purpose: In this paper, the impact of hardening temperature on the quenching distortions which occur during low-pressure carburizing with gas quenching - using the individual quenching method - was analysed. Design/methodology/approach: The reference elements were subjected to carburizing at 980°C, followed by gas quenching at temperatures of 860°C, 920°C and 980°C. The geometrical measurements of the elements were made before and after the chemical treatment and the size of the quenching distortions of their geometrical parameters was determined. Findings: It was demonstrated that a high temperature of quenching has an unfavourable effect on changes in cylindricity and roundness parameters but, at the same time, reduces the size of distortion of outer parameters. Low temperature quenching reduces quenching distortions of cylindricity and roundness parameters while increasing the distortion of outer dimensions. Research limitations/implications: Based on the research and analysis carried out in this work, it was found that the use of lower quenching temperature is justified in economic and quality terms. Practical implications: In the case of the aviation or automotive industry, very high quality of manufactured elements along with a simultaneous reduction of their production costs is extremely important. Maintaining the dimensions of the elements during heat treatment is extremely difficult. The tests allowed to determine the optimal hardening temperature, which brings with it acceptable deformations. Since it is easier to “repair” the outer geometrical dimensions (diameter, thickness), it seems that quenching from lower temperatures is a more favourable process. Originality/value: The conducted tests allowed to determine the most favourable conditions for hardening elements from the automotive industry, taking into account the occurring deformations and their subsequent processing
    Źródło:
    Archives of Materials Science and Engineering; 2020, 105, 2; 80--85
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Case hardening development review (2001-2020)
    Autorzy:
    Wołowiec-Korecka, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/24200635.pdf
    Data publikacji:
    2023
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    heat treatment
    hardening
    quenching
    distortions
    carburizing
    simulation
    obróbka cieplna
    hartowanie
    odkształcenia
    nawęglanie
    symulacja
    Opis:
    Purpose: The purpose of the work is a complex review of methods applied industrially as case hardening. The paper contains an overview of scientific and development works on surface case hardening methods, especially carburising and quenching, described in the literature from 2001-2020. Design/methodology/approach: State-of-the-art was reviewed by a critical review of the world literature published in 2001-2022, including theoretical work, scientific research, and industry reports. An additional examination of the state of the art was conducted in terms of patent works. Findings: The period of 2001-2020 was a time of intensive work on the modernisation of case hardening techniques to improve the repeatability and uniformity of the produced layers and minimise deformations after hardening. Developing computing technologies have played a large part in this progress. New technologies have also been developed. Research limitations/implications: The review of papers and patent databases was limited to databases providing English-language content options. Practical implications: Case hardening is a crucial stage of steel heat treatment in almost every industrial branch: mechanical, tool, automotive, railway, and aviation. Originality/value: A synthetic review of case hardening methods was presented, particularly carburizing and quenching methods; it also analysed the possibilities and directions of their development.
    Źródło:
    Archives of Materials Science and Engineering; 2023, 120, 2; 70--85
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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