Original scientific paper

The use of water atomisation for the production of frits

T. Lešer ; Emo Frite d.o.o., Celje, Slovenia
I. Anžel ; Faculty of Mechanical Engineering, University of Maribor, Maribor, Slovenia
A. Goršek ; Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia

Abstract

The produc tion of powder materials from melts is usually done by atomisation. In our research two different frits were successfully produced using water atomisation technique. An overall assessment of the powders showed that the sizes of particles and their morphologies are determined mainly by the chemical compositions of the frits and atomisation parameters. The sizes of the particles depend on the viscosities of the frits, which is governed by the melt superheating during the experimental trials, orifice diameter and interactions between droplets and particles during additional stages after primary atomisation, which were controlled by water pressure. The morphologies of the particles depend on the relationships between the times of solidification and sphereoidisation and on the interactions between the particles.

Keywords

water atomisation; microstructure; spheroidisation; frits

Hrčak ID:

131603

URI

https://hrcak.srce.hr/131603

Publication date:

1.7.2015.

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