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Wyszukujesz frazę "vacuum heat treatment" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Analysis and prediction of leak detection in the low-pressure heat treatment of metal equipment
Autorzy:
Kłos, Sławomir
Patalas-Maliszewska, Justyna
Bazel, Michal
Powiązania:
https://bibliotekanauki.pl/articles/2200932.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
vacuum heat treatment
vacuum furnace leaks
predictive maintenance
artificial neural networks
Opis:
The low-pressure heat treatment of metals enables the continuous improvement of the mechanical and plastic properties of products, such as hardness, abrasion resistance, etc. A significant problem related to the operation of vacuum furnaces for heat treatment is that they become unsealed during operation, resulting from the degradation of seals or the thermal expansion of the construction materials. Therefore, research was undertaken to develop a prediction model for detecting leaks in vacuum furnaces, the use of which will reduce the risk of degradation in the charge being processed. Unique experimental studies were carried out to detect leakages in a vacuum pit furnace, simulated using the ENV 116 reference slot. As a consequence, a prediction model for the detection of leaks in vacuum furnaces- which are used in the heat treatment of metals- was designed, using an artificial neural network. (93% for MLP 15-10-1) was developed. The model was implemented in a predictive maintenance system, in a real production company, as an element in the monitoring of the operation of vacuum furnaces.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 4; 719--727
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
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:
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:
Determination of heat treatment parameters for heavily - loaded aircraft engine components
Autorzy:
Rokicki, P.
Dychtoń, K.
Nowotnik, A.
Drajewicz, M.
Sieniawski, J.
Kurkowski, D.
Wierzbińska, M
Jakubowicz, G.
Budzik, G.
Powiązania:
https://bibliotekanauki.pl/articles/243068.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
aircraft engine components
vacuum carburizing
heat treatment
quenching
alloy steel microstructure
Opis:
Gears, due to their complex shape, carried load and required accuracy are ones of most complex aircraft engine parts. Single tooth damage usually breaks the power transmission and causes failure of the entire gear system. Adequate sustainability and guarantees of transmission is therefore a condition for secure operation of whole device. Particularly high requirements for reliability are put to transmissions used in the aerospace industry. Due to the loads which are transmitted through the gears, the materials used by the manufacturer must have not only high strength but also show the abrasion resistance of the surface layer and the ductility of the core. Proper parameters matching allows to create an element that can operate at higher stresses and loads. In addition, factor strength and abrasion resistance of the surface layer has a significant impact on the life of the gear. Thermo-chemical treatment of industrial gears is a fundamental process, which gives them adequate mechanical properties regarding loads they carry and the surface conditions of work. Among many methods of thermo-chemical treatment used in the industry, the most distinctive are innovative technologies designed to reduce process costs and being more environmentally friendly. The most promising methods in the discussed field are vacuum carburizing and high-pressure hardening, which by their specification of work significantly reduce the emission of CO2 and the duration of the process, without reducing the quality of the final product. The main aim of the paper is to present criteria for selection of heat treatment parameters as a part of thermo-chemical treatment process performed using vacuum methods. Proper heat treatment parameters are crucial in programming of some of final material characteristics as grain size and retained austenite morphology.
Źródło:
Journal of KONES; 2013, 20, 2; 349-354
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Obróbka cieplna stali przeznaczonych na części maszyn i narzędzia do obróbki plastycznej w zmodernizowanym piecu próżniowym RVFOQ-224
Application of modernized RVFOQ-224 vacuum furnace for heat treatment of steels used for machine elements and plastic working tools
Autorzy:
Głowacki, S.
Majchrzak, W.
Majchrzak, A.
Powiązania:
https://bibliotekanauki.pl/articles/211317.pdf
Data publikacji:
2006
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Obróbki Plastycznej
Tematy:
piec próżniowy
temperatura
pomiar
obróbka cieplna
stal narzędziowa
stal szybkotnąca
stal nierdzewna
nawęglanie
vacuum furnance
temperature
measurement
heat treatment
tool steel
high-speed steel
stainless steel
carburising
Opis:
Opisano zmodernizowany piec próżniowy RVFOQ-224, zainstalowany w hartowni Instytutu Obróbki Plastycznej w Poznaniu. Podano wyniki pomiaru temperatury w funkcji czasu wg zaprogramowanego cyklu nagrzewania. Zamieszczono liczne przykłady zastosowania RVFOQ-224 m.in. do obróbki cieplnej stali narzędziowych, szybkotnących i nierdzewnych. Doświadczenia eksploatacyjne potwierdzają zalety pieca.
Modernized RVFOQ-224 vacuum furnace installed in a heat treatment department of the Metal Forming Institute in Poznań is described. Results of measurements of temperature as time function according to programmed heating cycle are given as well as several application examples of RVFOQ-224. It has been used between others for heat treatment of tool steels, HSS and stainless steels. Operation trials has proved advantages of the furnace.
Źródło:
Obróbka Plastyczna Metali; 2006, 17, 1; 25-34
0867-2628
Pojawia się w:
Obróbka Plastyczna Metali
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ atmosfery stosowanej w segmencie dyfuzji w procesach FineLPN na właściwości warstw azotowanych na stalach HS6-5-2 oraz X37CrMo51
Effects of the atmosphere used during the diffusion segment of the Fi-neLPN technology on the properties of the nitrided layers of steels HS6- 5-2 and X37CrMo51
Autorzy:
Kula, P.
Januszewicz, B.
Wołowiec, E.
Rzepkowski, A.
Pietrasik, R.
Powiązania:
https://bibliotekanauki.pl/articles/109128.pdf
Data publikacji:
2013
Wydawca:
AXIS MEDIA
Tematy:
azotowanie niskociśnieniowe
FineLPN
stal narzędziowa
stal szybkotnąca
piec próżniowy
obróbka cieplna stali
dyfuzja
low pressure nitriding
tool steel
high-speed steel
vacuum furnace
diffusion
steel heat treatment
Opis:
W artykule przedstawiono badania nad opracowaniem modelu fizycznego wielosegmentowego azotowania niskociśnieniowego o strukturze procesu "boost-diffusion". Opracowany model umożliwi przeprowadzenie obróbki cieplnej i niskociśnieniowego azotowania stali narzędziowej i szybkotnącej w piecu próżniowym.
The article discusses studies that have j sought to create a physical model of the boost-diffusion multi-segment low-pressure nitriding process. The model would be subsequently used to perform heat treatment and low-pressure nitriding of tool steels and high speed steels in a vacuum furnace.
Źródło:
Piece Przemysłowe & Kotły; 2013, 9-10; 42-45
2082-9833
Pojawia się w:
Piece Przemysłowe & Kotły
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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