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    Wyświetlanie 1-13 z 13
    Tytuł:
    Impact of Higher Temperature on Quartz Moulding Sand with Gypsum Binders
    Autorzy:
    Paduchowicz, P.
    Stachowicz, M.
    Granat, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/382554.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry
    building gypsum
    gypsum putty
    pH
    LOI
    odlewnictwo
    gips
    spoiwo gipsowe
    Opis:
    This paper presents initial findings from research into the possibility of using gypsum binders in quartz moulding sand that could be used in the production of casting moulds and cores. For the purposes of the research two commercial types of gypsum were used as binders: building gypsum and gypsum putty. Dry components of moulding sand i.e. medium quartz sand and gypsum were mixed in proportion of 89/11 parts by weight. In order to achieve bonding properties for the binders, 5 parts by weight of water was added to the mixture of dry components. After 24 hours of adding water and mixing all the components, the moulding sand, naturally hardened, was subjected to high temperature. The moulding sand thus produced, i.e. with cheap and environmentally-friendly gypsum binders, was eventually analysed after heating (at temperatures of 300oC, 650oC and 950oC) and cooling in order to determine changes in the following parameters: LOI – loss on ignition, chemical composition and pH. Moreover, investigated were bonding bridges, before and after the moulding sand was roasted. The research results revealed differences in the structure of bonding bridges and the occurrence of automatic adhesive destruction for both types of gypsum binders. For two types of moulding sands under the investigation of the LOI exceeded 2.59wt.% (with building gypsum) or 2.84wt.% (with putty gypsum) and pH increased to ca. 12 as a result of increasing roasting temperature from 300oC to 650oC. Next, roasting at 950oC decrease value of LOI in both types of moulding sands. Moulding sand with builoding gypsum roasted at 950oC revealed a return to the value of pH parameter measured prior to annealing.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 1; 81-86
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of 2D and 3D Surface Roughness of Die Castings from Alloy AlSi9Cu3
    Autorzy:
    Pałyga, Ł.
    Stachowicz, M.
    Granat, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/382625.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    die casting
    roughness
    surface parameters
    SEM
    odlewnictwo ciśnieniowe
    chropowatość
    parametry powierzchniowe
    Opis:
    This paper presents the possibility of evaluating the 3D surface roughness of a raw die castings made from alloy AlSi9Cu3, group EN AB- 46000. Castings were produced on BUHLER H630-B die casting machine with various piston speed. The study was conducted on casting bracket for seatbacks office chair, whose surface do not require further machining to obtain adequate surface quality. In order to reduce the impact of possible surface mold roughness wear, the specimen has been taken from the places furthest away from the supply system. Evaluates of 3D surface roughness of specimens was performed on specialized software delivered with scanning electron microscope. After conducting a series of test on surface topography was evaluated roughness of raw castings produced with variable parameters of process control, such as piston speed during II Phase. It was found that the method used to measure 2D and 3D roughness parameters could be more practical in evaluating the quality of die castings, but it should be combined with the way their manufacturing and other destructive and non-destructive evaluation.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 1 spec.; 75-80
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of the Microwave Absorbing Effectiveness by the Selected Molding Sands Matrixes
    Autorzy:
    Stachowicz, M.
    Granat, K.
    Więcławek, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/382514.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry
    microwaves
    quartz sand
    absorption
    water
    odlewnictwo
    mikrofale
    piasek kwarcowy
    absorpcja
    woda
    Opis:
    The paper presents the results of the absorption effectiveness measured for electromagnetic waves with a frequency of 2.45 GHz penetrating selected quartz mold and core sands matrixes. Research was conducted with a usage of the unique microwave slot line for assessing, on the basis of the measured parameters of looseness, the effectiveness of microwaves absorbing capacity by the matrixes of molding sands. Examinations were focused on the high-silica quartz matrixes from various mines with a different grain size composition and humidity. Usage of the unique measuring device, designed especially for this type of research, has made possibility to systematize knowledge of the dynamics and efficiency of microwaves absorption while penetrating humid matrix of molding sands. Analysis of the study results indicate, that the process of microwaves absorbing is affect, in addition to water located on the matrix grains surfaces, by the grain size distribution and the origin of the quartz sand.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 1 spec.; 175-180
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badania nad możliwością modernizacji systemu sterowania odlewniczych maszyn ciśnieniowych
    Research on Control System Modernization Possibilities of Pressure Die Casting Machines
    Autorzy:
    Pałyga, Ł.
    Stachowicz, M.
    Granat, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/383330.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    odlewnictwo ciśnieniowe
    modernizacja
    sterowanie
    pomiar parametrów zalewania
    pressure die casting
    modernization
    control system
    Opis:
    W artykule przedstawiono efekty modernizacji systemu sterowania maszyny ciśnieniowej firmy BÜHLER, typ H630-B, w której zmieniono typ sterownika PLC na wydajniejszy i przystosowany do akwizycji danych pomiarowych. Do oceny korzyści wynikających z przeprowadzonej modernizacji posłużono się urządzeniem pomiarowym, które dzięki swojej specyficznej budowie pozwala na określenie wpływu stanu technicznego kokilarki na jakość odlewów wytwarzanych w technice modernizacji i diagnostyki maszyny. Na podstawie analizy wyników przeprowadzonych badań niszczących i nieniszczących wykonanych odlewów, możliwe było powiązanie parametrów ich wytwarzania z aktualnym stanem technicznym odlewniczej maszyny ciśnieniowej.
    The article presents the effects of the modernization of the BÜHLER pressure casting machine control system, Type H630-B, in which the PLC controller was changed to more efficient and suitable for data acquisition. To assess the benefits of the modernization diagnostic device was used, which due to their specific elements allows to determine the impact of the technical state of die casting machine on the quality of castings made with an alloy EN AB-46000 (AlSi9Cu3). The possibilities of modernization and diagnostic equipment were shown. Based on the analysis of destructive and non-destructive research results of made castings, it was possible to determine a relation between the parameters of their production and the current technical condition of the pressure die casting machine.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 3 spec.; 55-60
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Sand Wetting on Physically Hardened Moulding Sands Containing a Selected Inorganic Binder. Part 1
    Autorzy:
    Stachowicz, M.
    Granat, K.
    Pałyga, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/381331.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry engineering
    microwaves
    water glass
    wetting
    strength
    odlewnictwo
    mikrofale
    szklanka wody
    zwilżanie
    wytrzymałość
    Opis:
    In the paper, an attempt was made to evaluate the effect of preliminary wetting of high-silica base during preparation of moulding sands containing a selected grade of sodium water-glass, designed for hardening by traditional drying or by electromagnetic microwaves at 2.45 GHz. In the research, some water was dosed during stirring the sandmix before adding 1.5 wt% of the binder that was unmodified sodium water-glass grade 137, characterised by high molar module within 3.2 to 3.4. Scope of the examinations included determining the effect of wetting the base on mechanical parameters like compression, bending and tensile strength, as well as on technological parameters like permeability, abrasion resistance and apparent density. The research revealed a significant positive effect of adding water to wet surfaces of high-silica base grains on mechanical properties and quality of moulding sands hardened by physical methods, in particular by microwave heating.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 1; 73-78
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Overheating Degree on Activation Efficiency of Water-glass Containing Sandmix Hardened by Traditional Drying
    Autorzy:
    Stachowicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/380929.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry engineering
    moulding sand
    overheating degree
    reclaimed binder
    odlewnictwo
    masa formierska
    stopień przegrzania
    spoiwo regenerowane
    Opis:
    Presented are results of a preliminary research on the possibility to use innovative operations of activating inorganic binders during a reclamation process of used sandmixes containing water-glass, hardened by traditional drying. The moulding sand to be examined was prepared of high-silica sand and the selected water-glass grade 145. Next, it was subject to mixing components, compacting, hardening by traditional drying at 100°C, thermal loading of the mould up to 800°C, cooling-down to ambient temperature, knocking-out, various kinds of mechanical dry and wet reclamation to restore bonding properties to the sandmix. For examinations, two ranges of overheating the mould were selected, determined on the grounds of final strength (Rctk) of the sandmixes. It was found, among others, that overheating and dedusting affect activation of a used sandmix. There is a possibility of partial restoring binding properties of the binder by its rehydration in used-up and properly processed moulding sand, provided that hardening was performed by a physical method.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 2 spec.; 77-82
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Sand Wetting on Physically Hardened Moulding Sands Containing a Selected Inorganic Binder. Part 2
    Autorzy:
    Stachowicz, M.
    Granat, K.
    Pałyga, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/379478.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry engineering
    microwaves
    hardening
    moulding sand
    inorganic binder
    strength
    odlewnictwo
    mikrofale
    hartowanie
    masa formierska
    spoiwo nieorganiczne
    wytrzymałość
    Opis:
    In the paper, an attempt is made to explain the previously observed increased effectiveness of utilising hydrated sodium water-glass grade 137 after hardening moulding sands with selected physical methods. In the modified process of preparing sandmixes, during stirring components, water as a wetting additive was introduced to the sand-binder system. Presented are examination results of influence of faster microwave heating and slower traditional drying of the so-prepared moulding sands on their tensile and bending strength, calculated per weight fraction of the binder. The measurement results were confronted with SEM observations of linking bridges and with chemical analyses of grain surfaces of high-silica base. On the grounds of comprehensive evaluation of hardened moulding sands, positive effects were found of the applied physical process of binder dehydration and presence of the wetting additive. It was observed that introduction of this additive during stirring, before adding the binder, improves flowing the binder to the places where durable linking bridges are created. It was also found that the applied methods of hardening by dehydration enable creation of very durable linking bridges, strongly connected with the sand base, which results in damages of high-silica grain surfaces, when the bridges are destroyed.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 1; 79-84
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Automatic Core Shooting Parameters in Hot-Box Technology on the Strength of Sodium Silicate Olivine Moulding Sands
    Autorzy:
    Stachowicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/382292.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry
    sodium silicate
    olivine sand
    hot-box process
    core shooting
    odlewnictwo
    krzemian sodu
    piasek oliwinowy
    proces hot-box
    rdzeń
    Opis:
    The paper presents the results of preliminary research on the application of olivine moulding sands with hydrated sodium silicate containing 1.5 % wt. of binder to perform ecological casting cores in hot-box technology using a semi-automatic core shooter. The following parameters were used in the process of core shooting: initial shot pressure of 6 bar, shot time 3 s, the temperature of the core-box: 200, 250 and 300°C and the core curing time: 30, 60, 90, 120 and 150 s. The matrix of the moulding mixture was olivine sand, and the binder of the sandmix was commercial, unmodified hydrated sodium silicate with molar module SiO2/Na2O of 2.5. In one shot of the automatic core-shooter were formed three longitudinal specimens (cores) with a dimensions 22.2×22.2×180 mm. The samples obtained in this way were subjected to the assessment of the influence of the shooting parameters, i.e. shooting time, temperature and curing time in core-box, using the following criteria: core box fill rate, mechanical strength to bending RgU, apparent density, compaction degree and susceptibility to friability of sand grains after hardening. The results of trials on the use of olivine moulding sands with hydrated sodium silicate (olivine SSBS) in the process of core shooting made it possible to determine the conditions for further research on the improvement of inorganic hot-box process technology aimed at: reduction of the heating temperature and the curing time. It was found that correlation between the parameters of the shooting process and the bending strength of olivine moulding sands with sodium silicate is observed.
    Źródło:
    Archives of Foundry Engineering; 2020, 20, 1; 67-72
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Temperature on Chromite-Based Moulding Sands Bonded with Sodium Silicate
    Autorzy:
    Stachowicz, M.
    Kamiński, M.
    Granat, K.
    Pałyga, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/382605.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry engineering
    chromite sand
    moulding sand
    baking temperature
    sodium silicate
    odlewnictwo
    piasek formierski
    masa formierska
    temperatura zapiekania
    krzemian sodu
    Opis:
    In the paper, a research on effects of baking temperature on chromite sand base of moulding sands bonded with sodium silicate is presented. Pure chromite sand and its chromite-based moulding sand prepared with use of sodium silicate were subjected to heating within 100 to 1200 °C. After cooling-down, changes of base grains under thermal action were determined. Chromite moulding sand was prepared with use of 0.5 wt% of domestic made, unmodified sodium silicate (water-glass) grade 145. After baking at elevated temperatures, creation of rough layer was observed on grain surfaces, of both pure chromite sand and that used as base of a moulding sand. Changes of sand grains were evaluated by scanning microscopy and EDS analyses. It was found that changes on grain surfaces are of laminar nature. The observed layer is composed of iron oxide (II) that is one of main structural components of chromite sand. In order to identify changes in internal structure of chromite sand grains, polished sections were prepared of moulding sand hardened with microwaves and baked at elevated temperatures. Microscopic observations revealed changes in grains structure in form of characteristically crystallised acicular particles with limited magnesium content, intersecting at various angles. EDS analysis showed that these particles are composed mostly of chromium oxide (III) and iron oxide (II). The temperature above that the a.m. changes are observed in both chromite-based moulding sand and in pure chromite sand. The observed phenomena were linked with hardness values and mass of this sand.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 4; 147-152
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Temperature on Chromite-Based Moulding Sands Bonded with Sodium Silicate
    Autorzy:
    Stachowicz, M.
    Kamiński, M.
    Granat, K.
    Pałyga, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/381070.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry engineering
    chromite sand
    moulding sand
    baking temperature
    sodium silicate
    odlewnictwo
    piasek formierski
    masa formierska
    temperatura zapiekania
    krzemian sodu
    Opis:
    In the paper, a research on effects of baking temperature on chromite sand base of moulding sands bonded with sodium silicate is presented. Pure chromite sand and its chromite-based moulding sand prepared with use of sodium silicate were subjected to heating within 100 to 1200°C. After cooling-down, changes of base grains under thermal action were determined. Chromite moulding sand was prepared with use of 0.5 wt% of domestic made, unmodified sodium silicate (water-glass) grade 145. After baking at elevated temperatures, creation of rough layer was observed on grain surfaces, of both pure chromite sand and that used as base of a moulding sand. Changes of sand grains were evaluated by scanning microscopy and EDS analyses. It was found that changes on grain surfaces are of laminar nature. The observed layer is composed of iron oxide (II) that is one of main structural components of chromite sand. In order to identify changes in internal structure of chromite sand grains, polished sections were prepared of moulding sand hardened with microwaves and baked at elevated temperatures. Microscopic observations revealed changes in grains structure in form of characteristically crystallised acicular particles with limited magnesium content, intersecting at various angles. EDS analysis showed that these particles are composed mostly of chromium oxide (III) and iron oxide (II). The temperature above that the a.m. changes are observed in both chromite-based moulding sand and in pure chromite sand. The observed phenomena were linked with hardness values and mass of this sand.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 2; 95-100
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pochłanianie mikrofal przez nieutwardzone masy formierskie ze szkłem wodnym
    Microwave Absorption by Unhardened Molding Sands with Water-Glass
    Autorzy:
    Stachowicz, M.
    Granat, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/379879.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    odlewnictwo
    mikrofale
    szkło wodne
    pomiar stratności
    masa sypka
    masa samoutwardzalna
    founding
    microwaves
    water glass
    loss factor measurement
    self hardening moulding sand
    Opis:
    W pracy przedstawiono wyniki badań wstępnych pochłaniania fal elektromagnetycznych o częstotliwości 2,45 GHz przez masy formierskie sporządzone z różnymi gatunkami szkła wodnego sodowego. Zakres badań obejmował określenie wartości strat energii mikrofal, na podstawie pomiarów tłumienności wykonanych w trakcie ich propagacji przez wypełniony masą falowód. Pomiary strat mocy sygnału mikrofalowego prowadzono z zastosowaniem unikatowego stanowiska mikrofalowej linii szczelinowej. Na podstawie uzyskanych wyników badań stwierdzono, że stanowisko to wspomaga, na podstawie zmierzonych wartości strat sygnału mikrofalowego, ocenę skuteczności pochłaniania mikrofal przez kwarcowe masy formierskie zawierające różną ilość wybranych gatunków spoiw stosowanych w masach SMS. Przeprowadzone badania wykazały, że straty sygnału mikrofalowego związane są z: modułem i ilością wprowadzonego do masy szkła wodnego.
    In the paper are presented results of the preliminary research of absorption of electromagnetic waves with a frequency of 2.45 GHz by molding sands prepared with different kinds of sodium water-glass binders. The scope of the research included assessment of the losses of microwave energy, which were based on the loss measurements during their propagation through the waveguide filled with the molding sand. Measurements of the losses of microwave signal power was carried out using the unique test stand, which was the microwave slot line. On the basis of the preliminary research it was found, that this test stand helps to evaluate the effectiveness of microwave absorption by quartz molding sands containing different number of selected kinds of binders used in SMS sandmixes, by the usage of measured values of the microwave signal losses. Research have shown, that the loss of the microwave signal are associated with: the module and the amount of water-glass binder added to the molding sand.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 1 spec.; 169-174
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modified Hot Distortion Test to Investigate the Effect of the Inorganic Binder on the High-Temperature Behaviour of Physically Hardened Moulding Sands
    Autorzy:
    Stachowicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/382822.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry engineering
    sodium silicate
    bonded sand
    thermal deformation
    hot distortion test
    microwave heating
    odlewnictwo
    krzemian sodu
    piasek związany
    odkształcanie termiczne
    nagrzewanie mikrofalowe
    Opis:
    This study is an attempt to determine by Hot Distortion Test (HDT) the impact of physical methods of hardening inorganic binders in the moulding sands on phenomena caused by influence of thermal energy from heating elements with a temperature of 900°C +/- 10°C. Medium silica sand-based moulding mixtures were densified and then hardened using two physical methods: microwave heating at a frequency of 2.45 GHz or classical drying at a temperature of 110°C. Sodium silicate bonded sand (SSBS) with five unmodified kinds of hydrated sodium silicates subjected to two different types of hardening method were assessed in terms of their behaviour in high temperature. Thermal behaviour by means of deformation measurement was carried out with a modified Hot Distortion Test (mHDT). Due to this advanced, but unstable by appropriate standards Hot Distortion Test gives an opportunity to measure thermoplastic deformations (L) in moulding sands in many aspects, such as time of annealing. Research carried out in this way exposed differences between inorganic binders with molar module ranging from 3.4 to 2.0. It was established that deformations under the influence of high temperature last the longest in SSBS containing binders with molar module ranging from 3.4 to 2.9. Similarly, for these types of moulding sands the method of hardening the binder is found to be essential for increasing/decreasing the rate of thermoplastic deformations during the annealing of samples. The samples of SSBS made with binders with molar module from 2.5 to 2.0 are found to be excessively susceptible to thermoplastic deformation as a result of heating them in high environmental temperature presence.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 2; 45-50
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prediction of Properties of Microwave-Hardened Sandmixes Containing Water-Glass with Use of Neural Networks
    Autorzy:
    Stachowicz, M.
    Pałyga, Ł.
    Granat, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/382728.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry engineering
    artificial neural network
    loose self-hardening sand
    moulding sand
    water glass
    microwave
    odlewnictwo
    sztuczna sieć neuronowa
    sypka masa samoutwardzalna
    masa formierska
    szkło wodne
    mikrofala
    Opis:
    Presented are results of a research on the possibility of using artificial neural networks for forecasting mechanical and technological parameters of moulding sands containing water-glass, hardened in the innovative microwave heating process. Trial predictions were confronted with experimental results of examining sandmixes prepared on the base of high-silica sand, containing various grades of sodium water-glass and additions of a wetting agent. It was found on the grounds of obtained values of tensile strength and permeability that, with use of artificial neural networks, it is possible complex forecasting mechanical and technological properties of these materials after microwave heating and the obtained data will be used in further research works on application of modern analytic methods for designing production technology of high-quality casting cores and moulds.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 2; 99-104
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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