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    Wyświetlanie 1-14 z 14
    Tytuł:
    Temperature Field in Surfaced Steel Casts with the Heat of the Weld Taken into Account
    Autorzy:
    Winczek, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/383043.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    surface treatment
    temperature field
    welding
    surfacing
    obróbka powierzchniowa
    pole temperatury
    spawalnictwo
    napawanie
    Opis:
    In this work a model of temperature field in a steel cast during surfacing was presented. Analytical solution for half-infinite body model was obtained by aggregating temperature increments caused by applying liquid metal and heat radiation of moving electrode. The assumptions were Gaussian distribution heat sources of applied metal and weld and of electric arc heat source. Computations of temperature field were carried out during surfacing of cuboidal steel cast. The results were presented as temporary and maximum temperature distribution in element’s cross section and thermal cycles at selected points. The accuracy of solution was verified comparing calculated fusion line to that obtained experimentally.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 1 spec.; 121-126
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Żeliwo ADI przeznaczone do pracy w warunkach obciążenia dynamicznego
    Austempered Ductile Iron to Work in the Conditions of Dynamic Load
    Autorzy:
    Sokolnicki, M.
    Guzik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/382219.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    żeliwo ADI
    hartowanie
    udarność
    niskie temperatury
    ADI cast iron
    hardening
    toughness
    low temperature
    Opis:
    Żeliwo ADI posiada wiele odmian. Tematem artykułu jest najbardziej popularna odmiana ADI - (Austempered Ductile Iron) hartowanie z przemianą izotermiczną. Dzięki zastosowaniu w.w. rodzaju obróbki cieplnej uzyskuje się żeliwo o wyjątkowo korzystnych właściwościach wytrzymałościowych i plastycznych. Istotnym elementem procesu otrzymywania żeliwa wysokojakościowego jest aby w strukturze występował ausferryt.
    ADI makes an alternative to steel casting for constructors. High mechanical properties of ADI compare with parameters of quenched and tempered structural cast steel. A factor that is decisive for replacing steel casting with cast iron is elongation. For castings used in temperatures below 0oC a specified level of impact energy in negative temperature is needed. Impact energy in low temperature ausferritic cast iron was evaluated on samples without notch, with notch V and notch U. The research was carried out in temperatures +20oC, 0oC, -20oC, -40oC and -60oC. Two kinds of cast iron were evaluated: GJS-800-10 and GJS-1200-3 Grade. The value of temperature transition zone for high and low impact energy was evaluated. ADI cast iron was chosen, as one that can successfully replace the low-alloyed structural cast steel in low temperature conditions.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 4 spec.; 115-118
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of the Temperature Distribution of a Die Casting Mold of X38CrMoV5_1 Steel
    Autorzy:
    Majernik, J.
    Podařil, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/380463.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    casting process
    simulation
    temperature distribution
    mould material
    proces odlewania
    symulacja
    rozkład temperatury
    masa odlewnicza
    Opis:
    Relatively cold die material comes into contact with the substantially higher temperature melt during the casting cycle, causing high thermal fluctuations resulting into the cyclic change of thermal field. The presented contribution is devoted to the assessment of the impact of temperature distribution on individual zones in the die volume. The evaluated parameter is the die temperature. It was monitored at two selected locations with the 1 mm, 2 mm, 5 mm, 10 mm and 20 mm spacing from the die cavity surface to the volume of cover die and ejector die. As a comparative parameter, the melt temperature in the middle of the runner above the measuring point and the melt temperature close to the die face were monitored. Overall, the temperature was monitored in 26 evaluation points. The measurement was performed using the Magmasoft simulation software. The input settings of the casting cycle in the simulation were identical to those in real operation. It was found, that the most heavily stressed die zones by temperature were within the 20 mm from the die face. Above this distance, the heat supplied by the melt passes gradually into the entire die mass without significant temperature fluctuations. To verify the impact of the die cooling on the thermal field, a tempering system was designed to ensure different heat dissipation conditions in individual locations. At the end of the contribution, the measures proposals to reduce the high change of thermal field of dies resulting from the design of the tempering channel are presented. These proposals will be experimentally verified in the following research work.
    Źródło:
    Archives of Foundry Engineering; 2019, 2; 107-112
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of Pallet Component Geometry on Temperature Gradient During Cooling
    Autorzy:
    Bajwoluk, A.
    Gutowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/379657.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    information technology
    foundry industry
    foundry pallet
    temperature gradient
    technologia informatyczna
    przemysł odlewniczy
    paleta
    gradient temperatury
    Opis:
    The paper discusses the impact of the geometry of foundry pallet components on the value of temperature gradient on the wall crosssection during heat treatment. The gradient is one of the most important factors determining the distribution of thermal stresses in these items. Analysis of quantitative simulation was carried out to detect possible effect of the type of connection between pallet walls and thickness of these walls (ribs) on the interior temperature distribution during rapid cooling. The analysis was performed for five basic designs of wall connections used in pallets. Basing on the results obtained, the conclusions were drawn on the best connection between the ribs in foundry pallets.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 1; 5-8
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simulation and Analysis of Sintering Furnace Temperature Based on Fuzzy Neural Network Control
    Autorzy:
    Chaoxin, Zou
    Rong, Li
    Zhiping, Xie
    Ming, Su
    Jingshi, Zeng
    Xu, Ji
    Xiaoli, Ye
    Ye, Wang
    Powiązania:
    https://bibliotekanauki.pl/articles/1837792.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fuzzy neural network
    furnace
    sintering
    temperature control
    PID
    sieć neuronowa rozmyta
    piec
    spiekanie
    kontrola temperatury
    Opis:
    Aiming at the problems of delay and couple in the sintering temperature control system of lithium batteries, a fuzzy neural network controller that can solve complex nonlinear temperature control is designed in this paper. The influence of heating voltage, air inlet speed and air inlet volume on the control of temperature of lithium battery sintering is analyzed, and a fuzzy control system by using MATLAB toolbox is established. And on this basis, a fuzzy neural network controller is designed, and then a PID control system and a fuzzy neural network control system are established through SIMULINK. The simulation shows that the response time of the fuzzy neural network control system compared with the PID control system is shortened by 24s, the system stability adjustment time is shortened by 160s, and the maximum overshoot is reduced by 6.1%. The research results show that the fuzzy neural network control system can not only realize the adjustment of lithium battery sintering temperature control faster, but also has strong adaptability, fault tolerance and anti-interference ability.
    Źródło:
    Archives of Foundry Engineering; 2021, 21, 1; 23-30
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simulation and Analysis of Sintering Furnace Temperature Based on Fuzzy Neural Network Control
    Autorzy:
    Chaoxin, Zou
    Rong, Li
    Zhiping, Xie
    Ming, Su
    Jingshi, Zeng
    Xu, Ji
    Xiaoli, Ye
    Ye, Wang
    Powiązania:
    https://bibliotekanauki.pl/articles/1837849.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fuzzy neural network
    furnace
    sintering
    temperature control
    PID
    sieć neuronowa rozmyta
    piec
    spiekanie
    kontrola temperatury
    Opis:
    Aiming at the problems of delay and couple in the sintering temperature control system of lithium batteries, a fuzzy neural network controller that can solve complex nonlinear temperature control is designed in this paper. The influence of heating voltage, air inlet speed and air inlet volume on the control of temperature of lithium battery sintering is analyzed, and a fuzzy control system by using MATLAB toolbox is established. And on this basis, a fuzzy neural network controller is designed, and then a PID control system and a fuzzy neural network control system are established through SIMULINK. The simulation shows that the response time of the fuzzy neural network control system compared with the PID control system is shortened by 24s, the system stability adjustment time is shortened by 160s, and the maximum overshoot is reduced by 6.1%. The research results show that the fuzzy neural network control system can not only realize the adjustment of lithium battery sintering temperature control faster, but also has strong adaptability, fault tolerance and anti-interference ability.
    Źródło:
    Archives of Foundry Engineering; 2021, 21, 1; 23-30
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ temperatury na kinetykę utwardzania wybranych mas ze spoiwami
    The influence of temperature on the kinetics of the hardening selected molding sands with binders
    Autorzy:
    Jamrozowicz, Ł.
    Zych, J.
    Kozień, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/381999.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    masa samoutwardzalna
    wpływ temperatury
    kinetyka utwardzania
    technika ultradźwiękowa
    selfhardening mixture
    temperature influence
    hardening kinetics
    ultrasonic technique
    Opis:
    W artykule zaprezentowano wyniki badań wpływu temperatury osnowy na przebieg procesu wiązania mas samoutwardzalnych. Badaniom poddano 3 masy na bazie: żywicy alkidowej, żywicy fenolowej typu rezolowego (proces α-set) i żywicy furfurylowej (proces furanowy). Ponadto wyznaczono kinetykę procesu utwardzania i określono żywotność masy przy różnych temperaturach osnowy (10 ºC; 20 ºC; 30 ºC). Badania prowadzono przy wykorzystaniu techniki ultradźwiękowej.
    In the article the author presents the results of the researches into the sand grains temperature's influence on the process course of bonding the hardening self-setting sand. There are three different self-setting sand which undergo in the researches on the basis of: an alkyd resin, a phenol resin a-stage type (alfa-set process) and a furfuryl resin (furane process). What is more, the kinetics of the hardening process is defined and the self-setting sand vitality is described in the different sand grains temperatures (10 ºC; 20 ºC; 30 ºC). The researchers are taken with the use of the ultrasonic technique.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 1s; 75-80
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical Model for Solidification Zones Selection in the Large Ingots
    Autorzy:
    Wołczyński, W.
    Kwapisiński, P.
    Kania, B.
    Wajda, W.
    Skuza, W.
    Bydałek, A. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/379882.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    theory of crystallization
    thermal gradient field
    constrained solidification
    unconstrained solidification
    teoria krystalizacji
    gradientowe pole temperatury
    krzepnięcie ograniczone
    Opis:
    A vertical cut at the mid-depth of the 15-ton forging steel ingot has been performed by curtesy of the CELSA – Huta Ostrowiec plant. Some metallographic studies were able to reveal not only the chilled undersized grains under the ingot surface but columnar grains and large equiaxed grains as well. Additionally, the structural zone within which the competition between columnar and equiaxed structure formation was confirmed by metallography study, was also revealed. Therefore, it seemed justified to reproduce some of the observed structural zones by means of numerical calculation of the temperature field. The formation of the chilled grains zone is the result of unconstrained rapid solidification and was not subject of simulation. Contrary to the equiaxed structure formation, the columnar structure or columnar branched structure formation occurs under steep thermal gradient. Thus, the performed simulation is able to separate both discussed structural zones and indicate their localization along the ingot radius as well as their appearance in term of solidification time.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 4; 87-90
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of distance between heat sources in hybrid welded plate on fusion zone geometry
    Wpływ odległości źródeł ciepła w płaskowniku spawanym hybrydowo na geometrię strefy przetopionej
    Autorzy:
    Piekarska, W.
    Kubiak, M.
    Saternus, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/383366.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hybrid heat source
    temperature field
    fluid flow
    numerical analysis
    źródło ciepła hybrydowe
    pole temperatury
    przepływ cieczy
    analiza numeryczna
    Opis:
    Results of numerical analysis into temperature field in hybrid laser-arc welding process with motion of liquid material taken into account are presented in this study. On the basis of obtained results the influence of the distance between the arc foot point and the laser beam focal point on the shape and size of fusion zone in hybrid butt welded plate. Temperature field was calculated on the basis of solution of transient heat transfer equation. The solution of Navier-Stokes equation allowed for simulation of fluid flow in the fusion zone. Fuzzy solidification front was assumed in calculations with linear approximation of solid fraction in solid-liquid region where liquid material flow through porous medium is taken into consideration. Numerical solution algorithms were developed for three-dimensional problem. Established numerical model of hybrid welding process takes into account different electric arc and laser beam heat sources power distributions.
    W pracy przedstawiono wyniki numerycznej analizy pola temperatury w procesie spawania hybrydowego laser-łuk elektryczny z uwzględnieniem ruchu ciekłego metalu w strefie przetopienia. Na podstawie otrzymanych wyników oszacowano wpływ odległości elektrody od punktu skupienia wiązki laserowej na kształt strefy przetopionej płaskownika spawanego doczołowo. Pole temperatury otrzymano z rozwiązania równania nieustalonego przewodzenia. Rozwiązanie równania Naviera–Stokesa pozwoliło na symulację ruch cieczy w strefie przetopienia. Przyjęto łagodny front krzepnięcia z liniową aproksymacją udziału fazy stałej w obszarze dwufazowym, w którym uwzględniono ruch cieczy przez medium porowate. Opracowano algorytm numeryczny dla zagadnienia trójwymiarowego. W modelu numerycznym procesu spawania hybrydowym źródłem ciepła uwzględniono różne rozkłady mocy źródeł ciepła łuku elektrycznego i wiązki laserowej.
    Źródło:
    Archives of Foundry Engineering; 2011, 11, 2 spec.; 181-184
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical modelling of thermal phenomena in laser beam and hybrid welding processes using Abaqus FEA
    Modelowanie numeryczne zjawisk cieplnych w procesie spawania laserowego i hybrydowego z wykorzystaniem Abaqus FEA
    Autorzy:
    Piekarska, W.
    Kubiak, M.
    Saternus, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/382721.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    laser beam welding
    hybrid welding
    temperature field
    finite element analysis
    spawanie laserowe
    spawanie hybrydowe
    pole temperatury
    analiza elementów skończonych
    Opis:
    This paper concerns numerical analysis of thermal phenomena accompanying laser beam and laser-arc hybrid welding processes. Temperature field was obtained on the basis of the solution into energy conservation equation with Fourier law using finite element method. ABAQUS/Standard solver was used for calculations. Electric arc and laser beam heat sources were described respectively by “double ellipsoidal” heat source and Gaussian distribution with assumption of linear decrease of heat source power intensity with material penetration deep. Heat source movement along welded plate was obtained using DFLUX subroutine. Thermo-physical parameters dependant on temperature as well as latent heat of fusion were taken into account in FE analysis. The results of calculations include temperature field in rectangular elements butt welded by a single laser beam and hybrid laser-arc technique.
    Praca dotyczy analizy numerycznej zjawisk cieplnych towarzyszących procesom spawania wiązką laserową oraz spawania hybrydowego laser-łuk elektryczny. Rozkłady temperatury otrzymano z numerycznego rozwiązania równania zachowania energii z prawem Fouriera metodą elementów skończonych. Do obliczeń wykorzystano moduł obliczeniowy ABAQUS/Standard. Do opisu rozkładu mocy łuku elektrycznego wykorzystano model „podwójnie elipsoidalny”, natomiast rozkład mocy wiązki laserowej opisano modelem gaussowskim z uwzględnieniem liniowego spadku intensywności mocy źródła z głębokością penetracji materiału. Symulację ruchu źródła spawającego uzyskano dzięki zastosowaniu procedury DFLUX. W analizie uwzględniono zmienne z temperaturą własności termofizyczne a także ciepło krzepnięcia w obszarze dwufazowym. Wyniki obliczeń numerycznych obejmują rozkłady temperatury w elementach prostopadłościennych spawanych doczołowo wiązką laserową i techniką hybrydową laser-łuk elektryczny.
    Źródło:
    Archives of Foundry Engineering; 2011, 11, 2 spec.; 185-190
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Assessment of Resistance to Thermal Fatigue and Thermal Shock of Cast Iron Used for Glass Moulds
    Autorzy:
    Stradomski, G.
    Gzik, S.
    Jakubus, A.
    Nadolski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/379733.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    thermal fatigue
    high temperature parameters
    cracking
    cast iron
    production of glass
    zmęczenie termiczne
    parametry wysokiej temperatury
    pękanie
    żeliwo
    produkcja szkła
    Opis:
    Constantly developing production process and high requirements concerning the quality of glass determine the need for continuous improvement of tools and equipment needed for its production. Such tools like forms, most often made of cast-iron, are characterized by thick wall thickness compared to their overall dimensions and work in difficult conditions such as heating of the surface layer, increase of thermal stresses resulting from the temperature gradient on the wall thickness, occurrence of thermal shock effect, resulting from cyclically changing temperatures during filling and emptying of the mould. There is no best and universal method for assessing how samples subjected to cyclic temperature changes behave. Research on thermal fatigue is a difficult issue, mainly due to the instability of this parameter, which depends on many factors, such as the temperature gradient in which the element works, the type of treatment and the chemical composition of the material. Important parameters for these materials are at high temperature resistance to thermal shock and thermal fatigue what will be presented in this paper.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 3; 173-178
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling of Heat Engineering Parameters of Casting and Rolling Complexes Work
    Autorzy:
    Biryukov, A.
    Ivanova, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/381410.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    continuous casting
    casting-rolling machine
    ingot heating device
    temperature field
    heat flux
    odlewanie ciągłe
    urządzenie grzewcze
    pole temperatury
    strumień ciepła
    Opis:
    The paper consists the problem of developing a scientific toolkit allowing to predict the thermal state of the ingot during its formation in all elements of the casting and rolling complex, between the crystallizer of the continuous casting machine and exit from the furnace. As the toolkit for the decision making task the predictive mathematical model of the ingot temperature field is proposed. Displacement between the various elements of the CRC is accounted for by changing the boundary conditions. Mass-average enthalpy is proposed as a characteristic of ingot cross-section temperature state. The next methods of solving a number of important problems with the use of medium mass enthalpy are developed: determination of the necessary heat capacity of ingots after the continuous casting machine for direct rolling without heating; determination of the rational time of alignment of the temperature field of ingots having sufficient heat capacity for rolling after casting; determination of the total amount of heat (heat capacity) required to supply the metal for heating ingots that have insufficient amount of internal heat.
    Źródło:
    Archives of Foundry Engineering; 2019, 3; 11-14
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calculation of phase-change boundary position in continuous casting
    Autorzy:
    Ivanova, A. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/380559.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    solidification process
    information technology
    foundry industry
    mathematical modeling
    temperature distribution
    Stefan condition
    phase change boundary
    continuous casting
    krzepnięcie stopu
    technologia informacyjna
    przemysł odlewniczy
    modelowanie matematyczne
    rozkład temperatury
    warunek Stefana
    granica międzyfazowa
    odlewanie ciągłe
    Opis:
    The problem of determination of the phase-change boundary position at the mathematical modeling of continuous ingot temperature field is considered. The description of the heat transfer process takes into account the dependence of the thermal physical characteristics on the temperature, so that the mathematical model is based on the nonlinear partial differential equations. The boundary position between liquid and solid phase is given by the temperatures equality condition and the Stefan condition for the two-dimensional case. The new method of calculation of the phase-change boundary position is proposed. This method based on the finite-differences with using explicit schemes and on the iteration method of solving of non-linear system equations. The proposed method of calculation is many times faster than the real time. So that it amenable to be used for model predictive control of continuous semifinished product solidification.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 4; 57-62
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Temperature Field, Heat and Fluid Flow of Two-Phase Zone Continuous Casting Cu–Sn Alloy Wire
    Autorzy:
    Luo, J.
    Liu, X.
    Wang, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/380230.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    continuous casting
    two-phase zone continuous casting
    alloy Cu-Sn
    numerical simulation
    temperature field
    heat flow
    fluid flow
    odlewanie ciągłe
    strefa odlewania dwufazowego
    stop Cu-Sn
    symulacja numeryczna
    pole temperatury
    przepływ ciepła
    przepływ płynu
    Opis:
    Cu–4.7 wt. % Sn alloy wire with Ø10 mm was prepared by two-phase zone continuous casting technology, and the temperature field, heat and fluid flow were investigated by the numerical simulated method. As the melting temperature, mold temperature, continuous casting speed and cooling water temperature is 1200°C, 1040°C, 20 mm/min and 18°C, respectively, the alloy temperature in the mold is in the range of 720°C–1081°C, and the solid/liquid interface is in the mold. In the center of the mold, the heat flow direction is vertically downward. At the upper wall of the mold, the heat flow direction is obliquely downward and deflects toward the mold, and at the lower wall of the mold, the heat flow deflects toward the alloy. There is a complex circular flow in the mold. Liquid alloy flows downward along the wall of the mold and flows upward in the center.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 1; 33-40
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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