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    Wyświetlanie 1-8 z 8
    Tytuł:
    Comparison of energy consumption in the classical (PID) and fuzzy control of foundry resistance furnace
    Autorzy:
    Ziółkowski, E.
    Śmierciak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/380361.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    automatyzacja procesów odlewniczych
    piec odlewniczy
    regulator PID
    sterownik rozmyty
    automation of foundry processes
    control of foundry furnaces
    PID
    fuzzy controllers
    Opis:
    Foundry resistance furnaces are thermal devices with a relatively large time delay in their response to a change in power parameters. Commonly used in automation classical PID controllers do not meet the requirements of high-quality control. Developed in recent years, fuzzy control theory is increasingly being used in various branches of economy and industry. Fuzzy controllers allow to introduce new developments in control systems of foundry furnaces as well. Correctly selected fuzzy controller can significantly reduce energy consumption in a controlled thermal process of heating equipment. The article presents a comparison of energy consumption by control system of foundry resistance furnace, equipped with either a PID controller or fuzzy controller optimally chosen.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 3; 129-132
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis and assessment of measurements results of electric power demand in a model vacuum-assisted moulding installation
    Autorzy:
    Smyksy, K.
    Wrona, R.
    Brzeziński, M.
    Ziółkowski, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/380436.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mechanizacja procesów odlewniczych
    automatyzacja procesów odlewniczych
    pomiar elektroenergetyczny
    formowanie podciśnieniowe
    mechanisation of foundry processes
    automation of foundry processes
    electric power measurements
    vacuum assisted moulding processes
    Opis:
    In this article the main problems related with the proper choice of the design and operation parameters of vacuum installation in vacuum moulding system have been discussed. In such system a vacuum are generated using electric-driven vacuum pumps. The aim of the experiment is to evaluate the performance of a vacuum system basing on registered plots of selected electric power parameters of the power-supplying system of the pumps with parallel measurements instantaneous values of pressure in selected points of model stand. The measurements system for power-supply unit has incorporated the recorders of instantaneous current and voltage values. Following the suitable numerical procedure, the experimental data are analysed to yield mathematical relationships between the variations of the generated vacuum pressure levels and variations of selected electric power parameters. According to the authors, the applied measurements system of the parameters of a vacuum-assisted installation may become an effective and easy practical method of evaluating the performance of such installations, used also in industry.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 4; 135-140
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Applications of monitoring of electric power parameters to performance evaluation of a model vacuum-assisted moulding installation
    Autorzy:
    Ziółkowski, E.
    Brzeziński, M.
    Wrona, R.
    Smyksy, K.
    Zyzak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/382938.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mechanizacja procesów odlewniczych
    automatyzacja procesów odlewniczych
    pomiar elektroenergetyczny
    formowanie podciśnieniowe
    mechanisation of foundry processes
    automation of foundry processes
    electric power measurements
    vacuum-assisted moulding processes
    Opis:
    Vacuum conditions in foundry installations are generated using electric-driven vacuum pumps. The purpose of the experiment is to evaluate the performance of a vacuum-assisted system for compaction of moulding sand basing on registered plots of selected electric power parameters of the power-supplying system of the pumps. Model testing done on an experimental vacuum system installation, power-supplied from a system incorporating the recorders of instantaneous current and voltage values. Following the numerical procedure, the experimental data are analysed to yield mathematical relationships between the variations of the generated vacuum pressure levels and variations of selected electric power parameters. Registered and computed values of selected parameters: instantaneous and RMS voltage and current values, active, reactive and apparent power levels and power coefficient allow for diagnosing the adequacy and reliability of the system operation. According to the authors, the applied monitoring of the power parameters of a vacuum-assisted installation may become an effective and easy practical method of evaluating the performance of such installations, used also in foundry plants.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 2; 267-272
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aspects of Quality Assurance in Mechanization of Core Making Process
    Autorzy:
    Asłanowicz, M.
    Fedoryszyn, A.
    Fulko, T.
    Ościłowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/380486.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mechanization of casting processes
    automation of casting processes
    sand technologies
    core shooting
    blowing machines
    core making process
    mechanizacja procesów odlewniczych
    automatyzacja procesów odlewniczych
    rdzeń wstrzeliwany
    wdmuchiwanie
    Opis:
    The article presents conclusions drawn from analysis and research conducted in domestic foundries concerning currently used core shop equipment as well as determination of their needs within this area. Works within mechanization of core making process, conducted together by Ferro-Masz company, Łódź and Faculty of Foundry Engineering of AGH, Kraków, included analysis of available technologies, applied materials and requirements for mechanization of core making process with the use of blowing methods. Commercial offers from manufacturers of core making systems has been discussed together with presentation of own solution of universal core shooting/blowing machine, ensuring production of high-quality cores.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 1 spec.; 43-46
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research on Accuracy of Automatic System for Casting Measuring
    Autorzy:
    Jaworski, J.
    Kluz, R
    Trzepieciński, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/381307.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    automation in foundry
    robotics in foundry
    product development
    mechanization of casting processes
    automation of casting processes
    quality control of castings
    measurement systems
    automatyzacja w odlewni
    robotyka w odlewni
    rozwój produktów
    mechanizacja procesów odlewniczych
    automatyzacja procesów odlewniczych
    kontrola jakości odlewów
    systemy pomiarowe
    Opis:
    Ensuring the required quality of castings is an important part of the production process. The quality control should be carried out in a fast and accurate way. These requirements can be met by the use of an optical measuring system installed on the arm of an industrial robot. In the article a methodology for assessing the quality of robotic measurement system to control certain feature of the casting, based on the analysis of repeatability and reproducibility is presented. It was shown that industrial robots equipped with optical measuring systems have the accuracy allowing their use in the process of dimensional control of castings manufactured by lost-wax process, permanent-mould casting, and pressure die-casting.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 3; 49-54
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-Criterion Assessment of Different Variants of Casts Manufacturing Processes
    Autorzy:
    Kukla, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/381235.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    application of information technology
    foundry industry
    automation in foundry
    robotics in foundry
    zastosowanie technologii informatycznych
    przemysł odlewniczy
    automatyka w odlewnictwie
    robotyka w odlewnictwie
    Opis:
    The paper presents the issue of production processes improvement in foundries in the area of finishing treatment of iron casts manufactured on automated foundry lines with vertical or horizontal mould division. Due to numerous factors which influence the efficiency of the processes, multi-criterion assessment tools were proposed in order to select the optimal solution for the assumed criteria. After determining the criteria weight using the Saaty method, a simulation experiment was designed and carried out which presents possible scenarios of casts finishing treatment operations. Basing on experiment reports from a computer model, particular solutions were evaluated using the Yager’s method. The evaluation of the experiment results was performed by experts who assessed different options according to each of the criteria adopted. After the establishment of the total standardized ratings by averaging the scores given by individual experts, the final decision was generated. Using the presented method, the best solution was chosen from among the analyzed scenarios.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 3; 47-50
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quality and Safety Assurance of Iron Casts and Manufacturing Processes
    Autorzy:
    Kukla, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/381237.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    foundry
    automation in foundry
    robotics in foundry
    transport systems
    quality management
    workplace organization
    ergonomics of work
    odlewnia
    automatyzacja w odlewni
    robotyka w odlewni
    systemy transportowe
    zarządzanie jakością
    organizacja pracy
    ergonomia pracy
    Opis:
    The scope of this work focuses on the aspects of quality and safety assurance of the iron cast manufacturing processes. Special attention was given to the processes of quality control and after-machining of iron casts manufactured on automatic foundry lines. Due to low level of automation and huge work intensity at this stage of the process, a model area was established which underwent reorganization in accordance with the assumptions of the World Class Manufacturing (WCM). An analysis of work intensity was carried out and the costs were divided in order to identify operations with no value added, particularly at individual manufacturing departments. Also an analysis of ergonomics at work stations was carried out to eliminate activities that are uncomfortable and dangerous to the workers' health. Several solutions were proposed in terms of rationalization of work organization at iron cast after-machining work stations. The proposed solutions were assessed with the use of multi-criteria assessment tools and then the best variant was selected based on the assumed optimization criteria. The summary of the obtained results reflects benefits from implementation of the proposed solutions.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 2; 17-20
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improving the Organization of Iron Casts Finishing Processes
    Autorzy:
    Kukla, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/380666.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    information technology
    foundry industry
    automation in foundry
    robotics in foundry
    multicriteria variants analysis
    modelling of production systems
    simulation of production systems
    work ergonomics
    technologia informatyczna
    przemysł odlewniczy
    automatyka w odlewnictwie
    robotyka w odlewnictwie
    modelowanie systemów produkcji
    symulacja systemów produkcyjnych
    ergonomia pracy
    Opis:
    The paper presents issues of production processes improvement in foundries in terms of finishing treatment of iron casts on grinding workstations. Basing on the conducted analysis of work ergonomics on the grinding line and the observation of work at workstations, a range of improvements related to organizing grinding treatment processes was proposed. In order to visualize the production system functioning and estimate its efficiency, a simulation model of a grinding line has been created, on which a simulation experiment was carried out. Due to many factors influencing the effectiveness of processes, it was suggested to use multi-criteria evaluation tools to choose the most rational solution. Three criteria have been assumed, according to which particular improvement variants were evaluated. Also, criteria weights have been set according to the Saaty’s method, and particular solution variants have been assessed separately with respect to each criterion. On the basis of the presented course of action, the best solution has been selected from among the analyzed options.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 2 spec.; 55-58
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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