| Titre : |
Fabrication and upscaling of spinning processes for ceramic high-tech fiber production |
| Type de document : |
texte imprimé |
| Auteurs : |
Dietmar Hietel, Auteur ; Andreas Nöth, Auteur ; Michael Rothmann, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 55-57 |
| Langues : |
Anglais (eng) |
| Catégories : |
Fibres céramiques
Filature
Filature -- Appareils et matériels
Modélisation tridimensionnelle
Simulation par ordinateur
|
| Index. décimale : |
677.4 Textiles artificiels |
| Résumé : |
Ceramic fibers for high-tech applications require intensive developments concerning precursor synthesis and fiber spinning. The spinning process starts at laboratory scale with only few filaments and needs to be upscaled to pilot plant and industrial scale with hundreds or even thousands of fila-ments. Due to the significant interaction of filaments and surrounding inert atmosphere, the behavior in the spinning tower completely changes with higher numbers of filaments. How these effects are incorporated in a model of the gas flow including its influence by the filament spinning will be de-scribed. In 2 examples for melt- and dry-spinning of ceramic fibers it will be demonstrated how characteristic properties derived from experiments on a laboratory scale can be efficiently transferred to a pilot plant scale by use of simulations. For both applications the spinning tower was built according to the conditions derived from the simulation results, and experimentally proven to work. |
| Note de contenu : |
- Requirements for the fiber spinning processes
- Modeling and simulations
- Results and applications
- Fig. 1 : Spinning tower for melt-spinning process with angular shape (left) and dry-spinning with rectangular shape (right) - black arrows indicate gas inlets and outlets
- Fig. 2 : Streamlines of optimized ring flange (symmetric half) and rectangular flange with holes at the long sides
- Fig. 3 : Siulated gas flow under influence of spinning process with curing gas concentration in melt-spinning and solvent concentration in dry-spinning
- Fig. 4 : Realization of melt-spinning process and produced ceramic high-tech fibers |
| En ligne : |
https://drive.google.com/file/d/10FDKWP9dgRkSLnMuQWE--5Av4oHRxaeV/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19771 |
in CHEMICAL FIBERS INTERNATIONAL > (10/2013) . - p. 55-57
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