- Tytuł:
- Electrical Properties of Multilayer Systems Composed of Foundry Tooling and Moulding Sand
- Autorzy:
-
Gal, B.
Granat, K. - Powiązania:
- https://bibliotekanauki.pl/articles/381474.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
innovative foundry technology
microwaves
electrical properties
multilayer foundry system
innowacyjna technologia odlewnicza
mikrofale
właściwości elektryczne
system odlewniczy wielowarstwowy - Opis:
- Within the research, selected multilayer technological systems created as combinations of water-glass containing moulding sand with foundry tooling, were characterised on the grounds of their electrical properties. By measuring resonance frequency and quality factor of a waveguide resonance cavity, real component of permittivity εr′ and loss tangent tgδ were determined for multilayer foundry systems with various qualitative and quantitative compositions. It was demonstrated that combination of a sandmix and foundry tooling with known dielectric properties results in a system with different physico-chemical properties, whose relation to the parameters of individual components of the system is undefined at this research stage. On the grounds of measurement results, theoretical value of microwave heating power, dissipated in unit volume of the selected multilayer foundry system, was determined. Knowledge of theoretical heating power and evaluation of physical, chemical and structural changes occurring in moulding sands exposed to microwaves in such a technological system makes a ground for empirical modelling of the process of microwave heating of foundry moulds and cores.
- Źródło:
-
Archives of Foundry Engineering; 2017, 17, 2; 21-24
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł