- Tytuł:
- Properties of Bentonites and Bentonite Mixtures used in Casting Processes
- Autorzy:
-
Paź, S.
Drożyński, D.
Górny, M.
Cukrowicz, S. - Powiązania:
- https://bibliotekanauki.pl/articles/379839.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
casting processes
bentonite
properties of bentonites
bentonite mixture
green sands
procesy odlewnicze
bentonit
właściwości bentonitów
mieszanki bentonitowe - Opis:
- In this work, an assessment and comparison of the quality of selected bentonites and bentonite mixtures was made. The samples consisted of available foundry materials used for bonding green sands. Determining the homogeneity degree and specific surface area of the grains allowed us to compare the examined materials and determine their influence on other parameters. On the basis of a thermal analysis of the bentonites or bentonite mixtures, the changes occurring in the sample during its heating were determined. Determining the potential for ion exchange and montmorillonite content enabled us to assess the binding properties of the materials. The preparation of six green sands with different bentonites or bentonite mixtures gave us the opportunity to assess the changes in apparent density, permeability, compressive strength and friability as a function of humidity, and the impact of different materials on the mentioned parameters. Their charts were analyzed, and the molding sand with the addition of bentonite or a bentonite mixture was selected for which these parameters are favorable. On this basis, the best-presented binding material was assessed and selected.
- Źródło:
-
Archives of Foundry Engineering; 2019, 2; 35-40
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł