- Tytuł:
- Influence of Microwave Heating on the Molding Mass with Gypsum Binder Structure and Strength
- Autorzy:
-
Paduchowicz, P. J.
Granat, K.
Biały, P. - Powiązania:
- https://bibliotekanauki.pl/articles/1837825.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
foundry
foundry materials
foundry technologies
plaster gypsum
moulding and core sands
strength of masses
odlewnia
materiały odlewnicze
technologie odlewnicze
gips
masy formierskie
wytrzymałość mas formierskich - Opis:
- The paper presents results of influence microwave drying on strength and technological properties of molding sand with gypsum binder researches, which, immediately after making and after the natural initial setting in air for 1, 2 or 5 hours, was heated with 250 W microwave power for 3, 6, 9 and 12 min time periods. The test was carried out on a mass containing (% -wt.): 88% Grudzeń-Las quartz sand, 12% "Dolina Nidy" plaster gypsum and 6% water. The loss of moisture content during natural drying and then microwave drying was determined, significant from the point of view of using the mass with gypsum binder in the production of products, using an environmentally friendly technology without casting incompatibilities. Additionally, the compressive strength of the mass was measured. The influence of both drying methods on the binder crystallization process and the associated mass strength was demonstrated, especially in terms of the possibility of selecting parameters and / or intensifying a specific drying method for use in the technology of manufacturing molds and foundry cores.
- Źródło:
-
Archives of Foundry Engineering; 2021, 21, 1; 113-118
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł