Original scientific paper

Effect of compaction degree on permittivity of water-glass containing moulding sand

B. Gal ; Wroclaw University of Technology, Department of Foundry Engineering, Plastics and Automation and Automation, Wrocław, Poland
K. Granat ; Wroclaw University of Technology, Department of Foundry Engineering, Plastics and Automation and Automation, Wrocław, Poland
D. Nowak ; Wroclaw University of Technology, Department of Foundry Engineering, Plastics and Automation and Automation, Wrocław, Poland

Abstract

The presented basic research was aimed at determining a correlation between compaction degree of moulding sand and its permittivity ε_r at 2,45•109 s-1. The measurement results make a basis for mathematical description of a multilayer technological system as is a combination of moulding sand and foundry instrumentation. Analysis of the results shows that compaction significantly influences permittivity of the sandmix containing water-glass, because permittivity value increases with increasing compaction degree.

Keywords

casting; moulding sand; permittivity; compaction degree; microwaves

Hrčak ID:

168843

URI

https://hrcak.srce.hr/168843

Publication date:

2.1.2017.

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