Thermomechanical properties of molds based on different binders and casting quality
- Authors: Chernyshov E.A.1, Evlampiev A.A.2, Korolev A.V.2, Ivanova L.A.2, Moiseeva O.V.2
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Affiliations:
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev
- Ulyanov Chuvash State University
- Issue: Vol 46, No 8 (2016)
- Pages: 544-547
- Section: Article
- URL: https://journals.rcsi.science/0967-0912/article/view/178906
- DOI: https://doi.org/10.3103/S0967091216080064
- ID: 178906
Cite item
Abstract
The thermomechanical properties of foundry sand are analyzed. The thermal and dynamic action of the melt on the mold wall during the casting and solidification of metal is considered, along with its role in the formation of surface defects. The influence of the heating time on the deformation of common types of foundry sand is determined by simulating industrial ingot casting. The deformability of the foundry sand is related to the defects that form on the ingots and the pliability of the sand. Measures are proposed to prevent surface defects. Scabs, gaps, and hot buildup on castings may be attributed to deformational changes and disintegration in the surface layers of the foundry sand. In terms of surface-defect prevention and environmental protection, sodium-silicate foundry sand and phosphate sands are the best.
About the authors
E. A. Chernyshov
Nizhny Novgorod State Technical University n.a. R.E. Alekseev
Author for correspondence.
Email: nil_st@nntu.nnov.ru
Russian Federation, Nizhny Novgorod
A. A. Evlampiev
Ulyanov Chuvash State University
Email: nil_st@nntu.nnov.ru
Russian Federation, Cheboksary
A. V. Korolev
Ulyanov Chuvash State University
Email: nil_st@nntu.nnov.ru
Russian Federation, Cheboksary
L. A. Ivanova
Ulyanov Chuvash State University
Email: nil_st@nntu.nnov.ru
Russian Federation, Cheboksary
O. V. Moiseeva
Ulyanov Chuvash State University
Email: nil_st@nntu.nnov.ru
Russian Federation, Cheboksary