Wednesday, October 7, 2009
Hydraulic Pull-In Cylinder
A hydraulic cylinder retracts the entire injection assembly from the mould and moves the injection unit into the mould to begin moulding.
In injection moulding, we can describe the following three phases of operation:· Plastication· Injection· Cooling
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2009
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10/04 - 10/11
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- UNDERSTANDING PLASTICS MATERIALS
- Types of Polymers
- Polymer Classification
- POLYMER PROCESSING
- Viscosity
- Capillary Rheometry
- Melt Flow Index
- Orientation
- Crystallinity
- Reciprocating Screw Injection Moulding Machine.
- Hopper
- Feed Throat
- Barrel
- Hydraulic Pull-In Cylinder
- Screw
- Platens/Clamping System/Tie Bars
- Screw Specification
- Screw Function
- Nozzle
- Check Valve
- Sprue, Cold Slug Weld, Runner, and Gates
- Mould Cavity and Core
- Modes of Operation
- Complete Machine Cycle
- Machine Start-Up Procedure
- Shut-Down
- MACHINE CONTROL PARAMETERS
- Pressure
- Speed
- Time
- Temperature
- PLASTICS PROCESSING
- MATERIAL PREPARATION
- PHASES OF OPERATION
- INJECTION
- COOLING
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