Temat: heating technology - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Possibility of utilizing thermosetting moulding sands by microwave heating
Autorzy:: Granat, K.
Nowak, D.
Stachowicz, M.
Pigiel, M.
Powiązania:: https://bibliotekanauki.pl/articles/380427.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technology
microwave heating
thermosetting moulding sand
innowacyjna technologia odlewnicza
nagrzewanie mikrofalowe
masa formierska termoutwardzalna
Opis:: The paper presents a semi-industrial reactor designed for utilisation of waste moulds and cores made of thermosetting moulding sands by microwave incinerating. It was found that a possibility exists of effective incinerating residues of this kind waste cores or moulds left after casting. The research evidences that the apparatus permits effective control of the applied microwave heating process. Preliminary tests of microwave heating indicated that incinerating waste moulds and cores made of industrially used moulding sands based on phenolic-formaldehyde resins is an effective method of their utilization. Application of microwave heating for incinerating waste moulds and cores containing synthetic resins as binders guarantees significant and measurable economical benefits resulting from reduced process time.
Źródło:: Archives of Foundry Engineering; 2011, 11, 3 spec.; 71-74
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effect of Microwave Heating on Moulding Sand Properties with Gypsum Binder
Autorzy:: Paduchowicz, P.
Stachowicz, M.
Granat, K.
Powiązania:: https://bibliotekanauki.pl/articles/382976.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: foundry industry
foundry materials
foundry technology
microwave heating
gypsum
binding material
przemysł odlewniczy
materiały odlewnicze
technologia odlewnicza
ogrzewanie mikrofalowe
gips
materiał wiążący
Opis:: The paper presents results of initial research on the possibility of applying microwave radiation in an innovative process of making casting moulds from silica sand, where gypsum CaSO4∙2H2O was acting as a binding material. In the research were compared strengths and technological properties of moulding mixture subjected to: natural bonding process at ambient temperature or natural curing with additional microwave drying or heating with the use of microwaves immediately after samples were formed. Used in the research moulding sands, in which dry constituents i.e. sand matrix and gypsum were mixed in the ratio: 89/11. On the basis of the results of strength tests which were obtained by various curing methods, beneficial effect of using microwaves at 2.45 GHz for drying up was observed after 1, 2 and 5 hours since moisture sandmix was formed. Applying the microwaves for hardening just after forming the samples guarantees satisfactory results in the obtained mechanical parameters. In addition, it has been noted that, from a technological and economic point of view, drying the silica sand with gypsum binder in microwave field can be an alternative to traditional molding sand technologies.
Źródło:: Archives of Foundry Engineering; 2017, 17, 3; 97-102
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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