Injection moulding history and type

                                        INJECTION MOULDING

*Historical Background
* A single-action hydraulic injection machine was designed in the U.S.A.
in 1870 by Hyatt
*Heating-cylinder design was first recognised in a patent issued to Adam
Gastron in 1932.
*Large-scale development of injection moulding machinery design
towards the machines we know today did not occur until the 1950's in
Germany
           @ InjectionMouldingProcess
– Over View
Solid Wide neck, Flat Product is made like bucket, cabinets, Automobile &
Industrial parts etc…. by injecting molten thermoplastic material in to a
closed mould which is relatively cool.

*Type of Injection Moulding Machine

* Hand Injection Moulding M/C
* Plunger type Injection Moulding M/C
*Reciprocating Screw Type Injection Moulding M/C

                          @Hand Injection Moulding Machine

vertical machine consists of Barrel, Plunger, Band Heaters along with energy
regulator, Rack & Pinion system for Injecting the material by the plunger, a
torpedo and nozzle.

 Plunger Type Injection 

Moulding Machine
Vertical & Horizontal Plunger Type Injection Moulding Machine

 The Reciprocating Screw

 The feeding zone
 The compressing (or transition) zone
 The metering zone