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4. Production of material granules
Thermoplastic granules for injection or blow moulding and extrusion of pipes and profiles are produced in industrial plants which may include :
reactors in which the resins are obtained, then discharged in the form of strips or rods through nozzles located at their lower ends. After cooling, the strips or rods are granulated in granulators;
extruders fed with strips of material, or resins, additives and fillers in pellet or powder form, which, after plasticization, produce polymer alloys or resins mixed with additives and fillers. The rods obtained at the die exit are cooled and then granulated by a granulator which can be installed at the head of the extruder;
internal mixers where resins, additives and fillers are introduced. At the end of the mixing and plasticizing operation,...
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Production of material granules
References
References
Also in our database
Regulations
EEC Directives
Directive 2006/42/EC on the approximation of the laws of the Member States relating to machinery. Adopted in April 2006. Published in June 2006 in the EU Official Journal. It must be transposed by each state into its own law by June 29, 2008 at the latest. Its application date has been set at December 29, 2009. Until then, Directive 98/37/EC remains valid.
Annex 1: Essential...
Standards and norms
Association française de normalisation AFNOR
- Machines pour le caoutchouc et les matières plastiques. Machine à injecter. Prescriptions de sécurité. Indice de classement : E63-600 - NF EN 201 - 11-97
- Indice de classement : E63-600/A1 - NF EN 201/A1 - 05-00
- Indice de classement : E63-600/A2 - NF EN 201/A2 - 12-05
- Machines pour...
Document modified by the amendments
Websites
French legislation http://www.legifrance.gouv.fr
European Union http://europa.eu.int/scadplus/scad_fr.htmhttp://europa.eu.int
Directory
Organizations – Federations – Associations (non-exhaustive list)
AFICEP (French Association of Rubber and Polymer Engineers and Managers) http://www.aficep.com
AFNOR (Association Française de Normalisation) www.afnor.fr
ASTM International...
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