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Wyszukujesz frazę "hot-box technology" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Influence of the Thermal Reclamation of the Spent Core Sand Matrix on Its Reuse
Autorzy:
Łucarz, M.
Powiązania:
https://bibliotekanauki.pl/articles/380885.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermal reclamation
spent sand
thermal reclaimer
hot-box technology
regeneracja cieplna
usuwanie piasku
odzysk
technologia hot-box
Opis:
The investigation results of the thermal reclamation of spent core sands made in the hot-box technology are presented in the paper. Energy-consumption of the process was tested by recording the media consumption during the thermal treatment of the determined intensity. Gas demands in dependence of the reclamation process temperatures were compared. During the reclamation process the reclaimed material samples were taken to test ignition losses in order to determine the efficiency of the realised procedures. The influence of the reclamation temperature on the quality of the obtained reclaimed material was checked. The effects of the realised reclamation procedures of the same moulding sand at various temperatures were also assessed on the grounds of strength of moulding sands prepared on the bases of the obtained reclaims. It was found that the process energy-consumption can depend on the expected core sand parameters. The attention was drawn to the fact, that bearing of costs for the thermal reclamation - very often - does not correspond directly with the obtained effects. The thermal reclamation performed very intensively, which corresponds with the costs increase, is not always needed for obtaining the core sand of parameters comparable with the sand made of fresh components.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1 spec.; 27-30
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Thermal Reclamation Temperature on the Strength of the Moulding Sand Made of the Reclaim in the Hot-box Technology
Autorzy:
Łucarz, M.
Grabowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/380159.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
spent sand
thermal analysis
thermal reclamation
thermal reclaimer
hot-box technology
usuwanie piasku
analiza termiczna
regeneracja termiczna
technologia hot-box
Opis:
The results of the thermal reclamation investigations of the spent moulding sand with the Ekotec 35 binder, are presented in the paper. The reclamation process of the quartz matrix was carried out on the basis of the author's own method of selecting the reclamation temperature. On the bases of the performed thermo-gravimetric analysis of the binder the temperature range required for the efficient thermal reclamation was indicated. In order to confirm the assumption the thermal reclamations were performed at a temperature determined by the TG and - for comparisons - at a lower and higher temperature. During the reclamation process samples of the reclaim were taken for testing ignition losses in order to determine the process efficiency. The correctness of the assumed method of selecting the temperature range of the thermal reclamation of spent moulding sand with the Ekotec 35 binder was confirmed.
Źródło:
Archives of Foundry Engineering; 2015, 15, 1 spec.; 131-135
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wybranych parametrów regeneracji termicznej zużytej masy rdzeniowej na skuteczność prowadzonych zabiegów
The Impact of Selected Parameters of Thermal Reclamation of Used Sand on the Effectiveness of Reclamation Treatments
Autorzy:
Łucarz, M.
Dańko, R.
Dereń, M.
Powiązania:
https://bibliotekanauki.pl/articles/380851.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
regeneracja termiczna
regenerator termiczny
masa zużyta
technologia hot-box
thermal reclamation
thermal reclaimer
used sand
hot-box technology
Opis:
W publikacji przedstawiono wyniki badań, których celem było określenie wpływu wybranych parametrów pracy doświadczalnego regeneratora termicznego na skuteczność jego działania. Efektywność pracy urządzenia przeprowadzono analizując wpływ: temperatury pracy, temperatury powietrza fluidyzacji, stopnia nagrzania komory regeneratora termicznego oraz sposobu mieszania złoża. Badania wykonano na stanowisku doświadczalnym zainstalowanym w hali maszyn odlewniczych Wydziału Odlewnictwa AGH. Ocenę wpływu poszczególnych parametrów dokonano na podstawie badania strat prażenia pozyskanego regeneratu. Wykonano także badania wytrzymałości na zginanie kształtek z masy rdzeniowej w uniwersalnej maszynie do wykonywania próbek testowych i małych rdzeni w technologii hot-box (LUT).
The publication presents the results of a study aimed at determining the effect of selected parameters of the experimental thermal regenerator on its effectiveness. Efficiency of operation was carried out by analysing the effect of: operating temperature, fluidizing air temperature, heat degree in regenerator chamber and method of mixing fluidized bed. The research was conducted at the experimental station installed in the machine hall of the Faculty of Foundry Engineering AGH UST. Assessment of the impact of individual parameters was based on loss on ignition of achieved reclaims. Studies of bending strength of the core sands prepared with reclaim in hot-box technology are also presented.
Źródło:
Archives of Foundry Engineering; 2015, 15, 4 spec.; 91-94
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection of Hardening Technology of Moulding Sand with Hydrated Sodium Silicate Binder Devoted to Aluminum Alloys Ablation Casting
Autorzy:
Major-Gabryś, K.
Hosadyna-Kondracka, M.
Grabarczyk, A.
Kamińska, J.
Powiązania:
https://bibliotekanauki.pl/articles/354196.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry engineering
ablation casting
moulding sands
hydrated sodium silicate
hot-box technology
Opis:
The ablation casting technology consists in pouring castings in single-use moulds made from the mixture of sand and watersoluble binder. After pouring the mould with liquid metal, while the casting is still solidifying, the mould destruction (washing out, erosion) takes place using a stream of cooling medium, which in this case is water. The following paper focuses on the selection of moulding sands with hydrated sodium silicate technologies for moulds devoted to the ablation casting of aluminum alloys. It has been proposed to use different types of moulding sands with a water-soluble binder, which is hydrated sodium silicate. The authors showed that the best kind of moulding sands for moulds for Al alloy casting will be moulding sands hardened with physical factors – through dehydration. The use of microwave hardened moulding sands and moulding sands made in hot-box technology has been proposed. The tests were carried out on moulding sands with different types of modified binder and various inorganic additives. The paper compares viscosity of different binders used in the research and thermal degradation of moulding sands with tested binders. The paper analyzes the influence of hardening time periods on bending strength of moulding sands with hydrated sodium silicate prepared in hot-box technology. The analysis of literature data and own research have shown that molding sand with hydrated sodium silicate hardened by dehydration is characterized by sufficient strength properties for the ablation foundry of Al alloys.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 1; 359-364
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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