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Anna University B.TECH - Polymer Technology - Semester 5 - PROCESSING TECHNOLOGY – I

Posted Date: 10 Dec 2007 Resource Type: Articles/Knowledge Sharing Category: General

Posted By: Bala Member Level: Diamond
Rating:

Points: 1

PM501 PROCESSING TECHNOLOGY – I

UNIT I
Introduction to polymer processing – Plastics processing techniques – Selection of plastic materials – Selection of additives - General considerations in formulation – Methods of incorporation of additives - Mixing and compounding equipment.

UNIT II
Injection moulding –terminology – Process description- Theory of injection moulding – Design and consideration -moulding cycle – Classification and functions of moulds – Cavity lay out – Setting up of mould – Trouble shooting operations.

UNIT III
Types Injection unit & Elements of plasticating process – Classification of screw – Screw design – Process control – Clamping unit – Classification of Machine Hydraulics – Ancillary equipment – Computer operation

UNIT IV
Blow moulding – terminology – Basis in blow moulding - Process variables – Injection & stretch blow moulding – Single and multi layer. Extrusion blow moulding – Extrusion heads, moulding process controls for blow moulding – Machine, process and product controls.
UNIT V
Thermoforming – Definition – Methods of forming. Thermoforming machinery – Heating of sheet – Heating cycle - Stretching – Concept – Hot strength- Bustering – Sags - Cooling and trimming the parts – Heat balance – Shrinkage –Trimming operations.

Responses

Author: Bala 11 Dec 2007

Member Level: Diamond Points : 1

TEXT BOOKS:
1. D.V. Rosato Kluwer, Injection moulding handbook. - Academic Publishers Boston 2nd edtion 1995.
2. Richard C. Progelhof James. L. Throne, Polymer Engg. Principles, Hanser Publisher Munich 1993.

REFERENCE BOOKS:
1. N.P. Charemisinoff & P.N. Chere, Handbook of applied Polymer processing Tech, Marcel Dekker, inc, NY 1996.
2. Herbert Recs, Understanding of Injection moulding Tech., Hanser Pub., Munich 1994.

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