bei Google ScholarTitelangaben
Bifano, Luca ; Fischerauer, Alice ; Fischerauer, Gerhard:
Investigation of complex permittivity spectra of foundry sands.
In: Fischerauer, Alice ; Erni, Daniel ; Himmel, Jörg ; Seeger, Thomas ; Thelen, Klaus
,
University of Applied Sciences Ruhr West
(Hrsg.):
IEEE Workshop on Industrial and Medical Measurement and Sensor Technology Vehicle Sensor Technology (SENSORICA 2019) : Abstractbook. -
Mülheim a. d. Ruhr
,
2019
. - S. 42-43
. - (Series of lectures of the University of Applied Sciences Ruhr West
; 7
)
ISBN 978-3-946757-00-9
Abstract
Foundries producing cast iron parts work with special sand mixtures in their moulding processes. For the forming of the outer surfaces, moulding sand is used, usually a mixture containing mainly used quartz sand, bentonite as binding agent, and water. The bentonite in this form sand is partly active – it can still absorb water – and partly dead-burnt. The inner cavities of the castings are formed by sand cores ideally made from chromite sand, new quartz sand, and an organic binder. Since new quartz sand becomes an increasingly costly resource, it is partly replaced by regenerated core sand. This reclaim (regenerated sand) is produced by a regeneration process, where used core sand from the broken core is taken when the casting is unpacked. Obviously it is not possible to separate broken core sand from broken moulding sand during unpacking. Owing to this, some moulding sand, which is still coated with bentonite, is carried into the gathered core sand. This mixture has to be cleaned from the bentonite by the regeneration process in order to obtain a reclaim, which is similar enough to the ideal core sand to be of use. In order to monitor the regeneration process and to decide on the quality of the reclaim, we use impedance spectroscopy to obtain information about the mass fractions of chromite sand, moulding sand, and reclaim of a given sand sample.
Weitere Angaben
| Publikationsform: | Aufsatz in einem Buch |
|---|---|
| Beteiligte Institutionen (z.B. Veranstalter, Sponsor): | IEEE, Instrumentation and Measurement (IM) Society, Germany Section |
| Begutachteter Beitrag: | Nein |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mess- und Regeltechnik Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Mess- und Regeltechnik > Lehrstuhl Mess- und Regeltechnik - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer Fakultäten |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 12 Jun 2019 07:37 |
| Letzte Änderung: | 12 Jun 2019 07:37 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/49471 |