<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The processing of various powder materials is often done by an extrusion process; the powders being formed into a paste by the addition of a liquid substance. During extrusion, by reason of the extrusion pressure, some properties of the paste are changing, which affect its rheology and thus the extrusion itself. One of the phenomena is the movement of the liquid phase. This paper is focused on monitoring this phenomenon using model material in a simple test device. Its design simulates the effect of pressure in the extruder. The results of the measurements provide a picture of the movement of the liquid phase under the influence of the pressure in the porous skeleton formed by the powder material.</p>
</abstract>

The processing of various powder materials is often done by an extrusion process; the powders being formed into a paste by the addition of a liquid substance. During extrusion, by reason of the extrusion pressure, some properties of the paste are changing, which affect its rheology and thus the extrusion itself. One of the phenomena is the movement of the liquid phase. This paper is focused on monitoring this phenomenon using model material in a simple test device. Its design simulates the effect of pressure in the extruder. The results of the measurements provide a picture of the movement of the liquid phase under the influence of the pressure in the porous skeleton formed by the powder material.

Liquid Migration in the Paste as the Result of Consolidation

Slovak University of Technology in Bratislava

Faculty of Mechanical Engineering, Institute of Process Engineering

Strojnícky časopis - Journal of Mechanical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Liquid Migration in the Paste as the Result of Consolidation"}

The processing of various powder materials is often done by an extrusion process; the powders being formed into a paste by the addition of a liquid substance....

Liquid Migration in the Paste as the Result of Consolidation

Published Online: Oct 08, 2021

Page range: 131 - 138

DOI: https://doi.org/10.2478/scjme-2021-0011

Keywords
extrusion, paste, porosity, liquid phase migration

© 2021 Uličná Miriam et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Liquid Migration in the Paste as the Result of Consolidation

Published Online: Oct 08, 2021

Page range: 131 - 138

DOI: https://doi.org/10.2478/scjme-2021-0011

Keywordsextrusion, paste, porosity, liquid phase migration

© 2021 Uličná Miriam et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
extrusion, paste, porosity, liquid phase migration