italian version

Aims :

Aim of the course is to acquire design foundaments to factories productions.The student will have a global plastics materials knowledge and to related properties in order to planning a selection on the better conversion type. Finally he must have got technical and economical evaluations.

Topics :

Polymeric materials.Thermoplastic or thermosetting polymers. Amorphous or semicrystalline structure. Molecular weigth. Phase transformations. Thermal, mechanical and rheological properties. Tests on polymers. Compounds. Viscosity in shear and in elongation. Viscoelastic behaviour. Relaxation time. Main conversion technologies of the plastic at high pressure: compression molding, transfer moulding, injection moulding. Close examination of the technique of injection molding with the study of manufactured articles and with the planning of the technology. Simple numerical exercises. Mass manufactured articles and semi-expansion parts. Extrusion dies. Extrusion of profiles and cables. Machineries, control's parameters. Point of job of the extruder. Production of containers and of films by extrusion.

Textbooks :

W. MICHAELI, Plastics Processing, HANSER PUBLISHERS

Exam :

Written and Oral.

Tutorial Session :

Monday 16,30 - 17,30