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Smart textiles : monitoring, sensing and heating technology integrated in fabrics / Wim Christiaens in TECHNICAL TEXTILES, Vol. 67, N° 1 (2023)
[article]
Titre : Smart textiles : monitoring, sensing and heating technology integrated in fabrics Type de document : texte imprimé Auteurs : Wim Christiaens, Auteur Année de publication : 2024 Article en page(s) : p. 34-35 Langues : Multilingue (mul) Catégories : Chauffage
Electronique imprimée
Matériaux intelligents
Polyuréthanes
Surveillance électronique
Textiles et tissus à usages techniquesIndex. décimale : 677.4 Textiles artificiels Résumé : Textiles are tactile, sensorial and visual. Qualities can be modified or even expanded when technology is added, transforming passive textiles into active and interactive devices, monitoring and detecting bodily functions due to their constant contact with our skin. Note de contenu : - Printed electronics technology for smart textiles
- Applications that change the lifestyle : Athletic monitoring - Healthcare and medical sector - Automotive and aerospace - Active workwear - Textile-integrated flexible heaters
- Fig. 1 : Printed electronics are flexible, stretchable and lightweightEn ligne : https://drive.google.com/file/d/19Caukg6zCBiJXxa43vXLJkc_JVn3XIR0/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40696
in TECHNICAL TEXTILES > Vol. 67, N° 1 (2023) . - p. 34-35[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24511 - Périodique Bibliothèque principale Documentaires Disponible Software-based control of IR ovens / Junsheng Luo in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 1 (2021)
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Titre : Software-based control of IR ovens : Efficient and precise heating up to thermoplastic composites Type de document : texte imprimé Auteurs : Junsheng Luo, Auteur ; Norbert Müller, Auteur Année de publication : 2021 Article en page(s) : p. 17-21 Langues : Anglais (eng) Catégories : Chauffage
Composites thermoplastiques -- Moulage par injection
Plaques (ingénierie)
Rayonnement infrarougeIndex. décimale : 668.4 Plastiques, vinyles Résumé : Infrared heating technology has become established as the standard in the processing of thermoplastic composite materials. It makes it possible to heat flat organo sheets of up to about 3 mm thickness within the cycle times characteristic for injection molding processing. The focus is on process control. On the one hand, it is important that the heating process is fast, on the other hand, the material must not be overheated. It is also important to achieve excellent temperature homogeneity. Simultaneous processing of blanks with different thicknesses is particular challenge. Note de contenu : - IR oven supports fast not handling
- Efficient heating of thick semi-finished products
- Highest temperature homogeneity with optimum material protection
- Controlling a large variety of operating states
- Reaching targets simultaneously with all control zones
- Heating up semi-finished products of different thicknesses together
- Figure : Three organo sheets of different thickness are heated in two IR ovens in the production of a door structural part
- Fig. 1 : The surface temperature is monitored using pyrometers during the entire heating process. A double-sided IR oven is equipped with six pyrometer as standard equipment. The picture shows an example of the temperature curve at one measuring position during the heating phase and the soaking phase
- Fig. 2 : A double-sided horizontal IR oven with 100 x 600 mm payload area : the radiators are combined into groups to allow for control on the basics of a specific temperature measurement
- Fig. 3 : In the experiment, thermal inhomogeneties were specifically induced (initiatial situation). The resulting heating curves were then optimized by automatic process control (CZ = control zone)
- Fig. 4 : Automatic optimization of the heating behavior leads to a more uniform, almost linear temperature rise
- Fig. 5 : Software-supported optimization of the control parameters ensures high control quality in the heating phase
- Fig. 6 : Thanks to automatic process optimization, the two organo sheets reach the temperature setpoint at the same time despite of their different thicknessesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35099
in KUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 1 (2021) . - p. 17-21[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22531 - Périodique Bibliothèque principale Documentaires Disponible Targeted heating of high-performance polymers / Matthias Feiner in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 4 (2021)
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Titre : Targeted heating of high-performance polymers : Thermal management plays a crucial role in 3D printing of high-performance thermoplastics Type de document : texte imprimé Auteurs : Matthias Feiner, Auteur ; Uwe Popp, Auteur ; José Francisco Fernández, Auteur ; Martin Kipfmüller, Auteur Année de publication : 2021 Article en page(s) : p. 40-42 Langues : Anglais (eng) Catégories : Chauffage
Impression tridimensionnelle
Polyéther éther cétone
Polymères hautes performancesIndex. décimale : 668.4 Plastiques, vinyles Résumé : When printing high-performance polymers such as PEEK, stresses occur in the component due to the relatively high printing temperature and the changes in the material structure. These stresses can lead to microcracking, warping, cracking and ultimately to component failure. In the Smart Printbed project, a system was developed to minimize these influences and also save electrical energy. Note de contenu : - The zone heating system supplies energy only where it is needed
- Design of the smart print bed
- Optimal thermal management requires perfect interaction
- Fig. 1 : The smart printbed can heat, cool and measure temperature. The schematic sketch of the print bed shows the structure, which consists of 25 individual Peltier elements
- Fig. 2 : It all depends on the correct wiring : Only with a bridge circuit can the Peltier elements assume all three operating states (heating, cooling and measuring)En ligne : https://drive.google.com/file/d/1f_paUzdVVUz1Ef5td0LM7XSuc9aDgNVC/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35741
in KUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 4 (2021) . - p. 40-42[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22682 - Périodique Bibliothèque principale Documentaires Disponible The efficient route to tailored organo sheets / Sebastian Baumgärtner in KUNSTSTOFFE INTERNATIONAL, Vol. 106, N° 10 (10/2016)
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Titre : The efficient route to tailored organo sheets : Producing CFRP efficiently in a vacuum using infrared radiation Type de document : texte imprimé Auteurs : Sebastian Baumgärtner, Auteur ; Jennifer John, Auteur ; Frank Henning, Auteur ; Timo Huber, Auteur ; Benjamin Hangs, Auteur Année de publication : 2016 Article en page(s) : p. 123-127 Langues : Anglais (eng) Catégories : Bandes composites
Chauffage
Composites à fibres de carbone
Fibres à orientation unidirectionnelle
Fibres continues
Polyamide 6
Procédés de fabrication
Rayonnement infrarouge
Semi-produitsIndex. décimale : 668.4 Plastiques, vinyles Résumé : Continuous-fiber processing - Consolidation - A novel process enables the efficient consolidation of high-quality thermoplastic fiber-reinforced semifinished products. The material is heated with infrared radiation and consolidated quickly and efficiently under vacuum in the closed mold. Note de contenu : - Thermoplastic tape layup with defined property profile
- Consolidation as an essential step for achieving quality
- The operating principale in detail
- Study of semi-finished product quality
- FIGURES : 1. Thermoplastic tape layup combines the process steps of tape selection, tape layup, and consolidation as well as foring and back-molding or back-compression molding - 2. Scanning electron micrographs (SEMs) of consolidated layups (cross-laminate) with low and high pore content. The pores here are identifiable from the black and white areas - 3. Radiation-induced vacuum consolidation (RVC) protects the material against thermo-oxydative degradation - 4. An organosilicon coating on the old surface makes it possible to consolidate a tape layup without using any release agents at all - 5. Comparison of the bending stiffnes and bending strength achieved with RVC and a reference process reveals a far superior performance of the layup consolidated with RVC - 6. CT images of the carbon fiber-reinforced polyamide 6 layup consolidated with the RVC and reference processes. The top image show the representative sampes in plan view while the bottom images show the same samples in cross-section. Pores are identifiable as black spotsEn ligne : https://drive.google.com/file/d/1GqIWIjv2VrW5tfkuTKRPd-r195zIRrso/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28077
in KUNSTSTOFFE INTERNATIONAL > Vol. 106, N° 10 (10/2016) . - p. 123-127[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18402 - Périodique Bibliothèque principale Documentaires Disponible Warm-off adhesives / Vo Khoa in ADHESIVE TECHNOLOGY, Vol. 16, N° 2 (06/1999)
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Titre : Warm-off adhesives Type de document : texte imprimé Auteurs : Vo Khoa, Auteur ; E. Schmitt, Auteur ; David D. Taft, Auteur Année de publication : 1999 Article en page(s) : p. 20-22 Langues : Anglais (eng) Catégories : Adhésifs -- Propriétés physiques
Adhésifs sensibles à la pression
ChauffageIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Warm-off adhesives provide excellent adhesion, but can be easily removed by heating above the temperature switch of the polymer. Note de contenu : - Objective
- Temporary in-process adhesives
- Research approach
- Table 1 : Physical properties
- Table 2 : Results after heating to 60°CPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37369
in ADHESIVE TECHNOLOGY > Vol. 16, N° 2 (06/1999) . - p. 20-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001983 - Périodique Bibliothèque principale Documentaires Disponible