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Twin-screw extruders : a basic understanding / Fabrizio G. Martelli / New York [USA] : Van Nostrand Reinhold Company (1983)
Titre : Twin-screw extruders : a basic understanding Type de document : texte imprimé Auteurs : Fabrizio G. Martelli, Auteur Editeur : New York [USA] : Van Nostrand Reinhold Company Année de publication : 1983 Importance : X-137 p. Présentation : ill. Format : 24 cm ISBN/ISSN/EAN : 978-1-4684-1466-0 Prix : 93,50 E Note générale : Appendices - Index - Bibliogr. Langues : Américain (ame) Catégories : Extrudeuse bi-vis
Matières plastiques -- Extrusion -- Appareils et matérielsIndex. décimale : 668.4 Plastiques, vinyles Résumé : Most books on plastics machinery include a preamble on the origin of such equipment, and some even discuss the origin of plastic itself, dating back to the early 1900s and such men as Leo Baekeland - the real founder of synthetic plastics. There seems therefore, little pur pose in reiterating what has been said before and going over the same ground so adequately covered in a number of books as well as the trade press. We are indebted to the author of this excellent treatise on twin-screw extruders for getting right down to the business at hand. The author makes mention of two pioneers - Roberto Colombo and Carlo Pasquetti - who were the first to develop twin-screw ex truders. It was my good fortune to follow the work of these pioneers, and, interestingly enough, the principles were so good that their work continues to be relevant even to the advanced and more sophisticated models so well defmed in this book. Note de contenu : 1. SINGLE-SCREW EXTRUDERS
2. TWIN-SCREW EXTRUDERS : Principles of operation - Intermeshing and conjugation - Geometry of screws - Flight-tip width - Shear stresses - Output -Configuration of screws
3. COUNTERROTATING EXTRUDERS : Feeding - Melting - Mixing venting - Pumping - Residence time - Power consumption
4. COROTATING SCREWS : Feeding - Melting - Mixing - Venting - Pumping - Number of filled flights - Residence time - Pressure profile - Power consumption
5. CONSTRUCTION FEATURES : Motors - Screws - Gear box - Thrust bearings - Feeding systems - Barrel - Electricals - Torque
6. OPERATING OF TWIN-SCREW EXTRUDER : Start-up - Efficiency
7. APPLICATION OF TWIN-SCREW EXTRUDERS : Sensitive materials - Foams - ConclusionPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30222 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19716 668.4 MAR Monographie Bibliothèque principale Documentaires Disponible Wear protection on twin screws / Hans-Peter Schneider in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 4 (04/2013)
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Titre : Wear protection on twin screws Type de document : texte imprimé Auteurs : Hans-Peter Schneider, Auteur ; Jens Liebhold, Auteur Année de publication : 2013 Article en page(s) : p. 50-53 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages
Carbure de tungstène
Extrudeuse bi-vis
Matières plastiques -- Extrusion -- Appareils et matériels
Métaux -- Revêtements protecteurs
Molybdène
Revêtement métallique
Usure (mécanique)Index. décimale : 668.4 Plastiques, vinyles Résumé : Surface Coating - Wear is unavoidable and system-inherent in counter-rotating twin-screw extruders. Apart from the material being extruded, the process parameters and the geometry of the parts, the right choice of friction partners plays a dominant role with respect to the service life of the process unit. The use of special surface coatings allows the service lives to be significantly prolonged. Note de contenu : - Adhesive wear
- Abrasive wear
- Corrosive wear
- Characteristic wear in the various applications
- Factors that influence wear
- Wear analysis
- Measures for reducing wear
- Flight surface protection based on molybdenum alloy
- Flight surface protection based on tungsten carbideEn ligne : http://www.kraussmaffeiberstorff.com/media/files/kmdownloadlocal/en/I-PDF_Krauss [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18666
in KUNSTSTOFFE INTERNATIONAL > Vol. 103, N° 4 (04/2013) . - p. 50-53[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14940 - Périodique Bibliothèque principale Documentaires Disponible