Plastic materials can be bent into variety of forms with the help of different types of processes such as molding, extrusion, casting, calendaring, thermoforming, laminating and foaming.

There are different types of plastic molding processes including compression molding, injection molding, rotational molding and blow molding.
Among all the processes, Injection molding is a very flexible process for producing a vast range of simple or complex plastic parts. This is done with the help of injection molding machine. Injection molding is carried out by injecting melted plastic into a mold. Most thermoplastics can be processed by Injection Molding.

Salient Features

• The Plastic injection molding machine consists of two parts: the injection unit that melts the plastic and injects the plastic into the mold; and the clamping unit that holds the mold.
• The injection molding unit clamps the mold in a closed position during injection, opens the mold after cooling, and discharges the finished part.
• The machine also consists of a heated barrel provided with a reciprocating screw, which is driven by a hydraulic or electric motor.
• The screw feeds the molten plastic material or polymer into a temperature controlled split mould through a channel system consisting of gates and runners.
• The material is introduced into the injection molding machine through a Hopper.
• Different types of tools used in the injection molding machine are made from steels and aluminium alloys.

Applications

There are many different applications of Plastic Injection Molding Machine. Some of its applications are:

• Plastic Industry
• Automobile Industry
• Aerospace
• Hydraulic & Pneumatics
• Engineering Prototypes
• Architecture
• Medical & Dental Sciences
• Packaging
• Agriculture
• Power Tools
• Electronics
• Telecommunications
• Geophysics
• Fibre Optics
• Measuring Instruments