Optimierung der Masselvorbehandlung bei der Sekundärmetallurgie von Magnesium

Translated title of the contribution: Optimization of the ingot pre-treatment for secondary metallurgy of magnesium

Christian Michael Rammer

Research output: ThesisDiploma Thesispeer-review

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Abstract

The aim of the present thesis was to investigate possibilities of a more economical and more ecological way of the pre-treatment of magnesium ingots for secondary metallurgy. Therefore experiments were done with off-gas which is generated by the smelting process. Of special interest was, if these gases could be used for the pre-heating of the ingots without influencing the following melting process. For further economizing the process and utilizing the heat of the off-gas for other purposes the possibility of drying the ingots sufficiently for the smelting process by short-time evacuation was tested. The experiments provided satisfying results for both tasks. Pre-heating with off-gas caused no negative effects on the metal surface. Due to safety reasons it is strongly recommended to prefer indirect pre-heating. Experiments under vacuum showed that 90 % of surface water can be removed within the first minute by evacuation to < 100 mbar. However, capillary water which can amount to a considerable part couldn’t be eliminated even after several minutes of evacuation.
Translated title of the contributionOptimization of the ingot pre-treatment for secondary metallurgy of magnesium
Original languageGerman
QualificationDipl.-Ing.
Awarding Institution
  • Montanuniversität
Supervisors/Advisors
  • Paschen, Peter, Supervisor (internal)
Publication statusPublished - 17 Jun 2003

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