Szczegóły publikacji
Opis bibliograficzny
Thermal deformation of moulding and core sands with an inorganic binder containing a relaxation additive / A. BOBROWSKI, D. DROŻYŃSKI, J. JAKUBSKI, M. SZUMERA, K. KACZMARSKA, B. GRABOWSKA // Archives of Foundry Engineering / Polish Academy of Sciences. Commission of Foundry Engineering ; ISSN 1897-3310. — Tytuł poprz.: Archiwum Odlewnictwa. — 2018 — vol. 18 iss. 4, s. 93–98. — Bibliogr. s. 97–98, Abstr.
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Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 119800 |
|---|---|
| Data dodania do BaDAP | 2019-02-07 |
| Tekst źródłowy | URL |
| DOI | 10.24425/afe.2018.125175 |
| Rok publikacji | 2018 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Archives of Foundry Engineering |
Abstract
The paper presents the results of an investigation of the thermal deformation of moulding sands with an inorganic (geopolymer) binder with a relaxation additive, whose main task is to reduce the final (residual) strength and improves knocking-out properties of moulding sand. The moulding sand without a relaxation additive was the reference point. The research was carried out using the hot-distortion method (DMA apparatus from Multiserw-Morek). The results were combined with linear deformation studies with determination of the linear expansion factor (Netzsch DIL 402C dilatometer). The study showed that the introduction of relaxation additive has a positive effect on the thermal stability of moulding sand by limiting the measured deformation value, in relation to the moulding sand without additive. In addition, a relaxation additive slightly changes the course of the dilatometric curve. Change in the linear dimension of the moulding sand sample with the relaxation additive differs by only 0.05%, in comparison to the moulding sand without additive.