| Titre : |
Designing for free flow : Testing low friction coatings for powder handling equipment |
| Type de document : |
texte imprimé |
| Auteurs : |
Jamie Clayton, Auteur |
| Année de publication : |
2017 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Equipement industriel
Essais dynamiques
Frottements (mécanique)
Poudres
Revêtements:Peinture
Technique de la production
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Coatings applied to the surfaces of machinery and handling plant such as hoppers can reduce wear and corrosion, as well as improving handling by the control of ffriction. The frictional behaviour of coatings was studied in relation to powder flow. The application of the results to the design and specification of powder hoppers is discussed. |
| Note de contenu : |
- How coatings affect powder flow
- Basic principles of well friction testing
- Wall friction testing : a case study
- Test materials and equipement
- Level of improvements is dependent on powder tested
- Analysing the problems of 'slip-stick' behaviour
- FIGURES : 1. Wall friction test apparatus used to measure the effects of a surface coating on powder flow - 2. Wall friction test data for a single test surface and a consolidated powder sample under a range of normal stress levels - 3. An "FT4" powder rheometer used to test wall friction between powders and surface coatings - 4. Analysis of wall friction data with SMP as test powder. Steel and 'Everube', show slip-stick behaviour while "flurene 177" and coating appear not to with this powder - 5. Variation in shear stress during pre-shearing, indicating the extent of slip-stick behaviour - 6. Hopper design : half angle ? and hopper outlet size B - 7. WFA, hopper half angle and outlet size indicate variations in performance for a range of coating/powder combinations
- TABLE : Wall friction angles for six surface coatings measured using the "FT4" powder rheometer
- Using results to generate commercial advantage |
| En ligne : |
https://drive.google.com/file/d/1qDNTeDQq6dKy9aihtzyY3HUjzE0FVsGR/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28817 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8 (07-08/2017)
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