Comparison of Degassing Efficiency on a Foundry Degassing Unit Using Different Rotor Types

Author:

Kolínský Jan1,Prášil Tomáš2,Socha Ladislav1ORCID,Sviželová Jana1ORCID,Gryc Karel1ORCID,Häusler Josef3,Dvořák Martin4

Affiliation:

1. Institute of Technology and Business in České Budějovice, 370 01 České Budějovice, Czech Republic

2. Department of Machine Designs, Faculty of Mechanical Engineering, University of West Bohemia, 301 00 Plzeň, Czech Republic

3. Die-Casting Division, MOTOR JIKOV Slévárna a.s., 370 04 České Budějovice, Czech Republic

4. Tool Shop Division, MOTOR JIKOV Fostron a.s., 370 04 České Budějovice, Czech Republic

Abstract

The present paper describes a comparison of the efficiency of different types of rotors used in the refining of aluminium melt at a foundry degassing unit (FDU). Physical modelling was used to obtain data for six different rotor types under defined experimental conditions. In order to evaluate the data from the physical model, an evaluation method based on the interpolation of degassing curves was developed in such a way that the resulting characteristic can be expressed by a single parameter. Using the new methodology, the datasets were replaced by a single dimensionless parameter, a, which characterizes the rotor performance at a given gas flow rate. Based on the comparison of these performance parameters, it was possible to mutually compare the rotor efficiency depending on the selected conditions. The comparison is also demonstrated on the expected degassing time to a certain required concentration. Based on the physical model results, the study found that rotor D had the highest degassing efficiency, followed by rotors F and A. Rotors B and E had similar efficiency at a flow rate of 17 Nl·min−1. However, rotor B showed better efficiency at higher inert gas flow rates (19 and 21 Nl·min−1), while rotor E showed better efficiency at lower flow rates (13 and 15 Nl·min−1).

Funder

Technology Agency of the Czech Republic

Ministry of Education, Youth and Sports

Publisher

MDPI AG

Reference46 articles.

1. Michna, Š. (2005). Encyklopedie Hliníku, Alcan Děčín Extrusions.

2. Georgantzia, E., Gkantou, M., and Kamaris, G.S. (2021). Aluminium Alloys as Structural Material: A Review of Research. Eng. Struct., 227.

3. A Review on use of Aluminium Alloys in Aircraft Components;Jawalkar;I-Manag. J. Mater. Sci.,2015

4. Sun, Y. (2023). The use of aluminum alloys in structures: Review and outlook. Structures, 57.

5. Mapping the Global Flow of Aluminum: From Liquid Aluminum to End-Use Goods;Cullen;Environ. Sci. Technol.,2013

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