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Process Optimization & The Universal Setup Sheet
One Setup Sheet for Any Press, Based on Scientific Injection Molding
2-3 days with at-the-press demonstrations
- Industry Introduction
- Purpose
- Perspectives on the plastics' industry, Manufacturing
- Profits
- What is your product
- The components of a successful plastic's application
- Concurrent engineering and its benefits
- The four molding variables
- Machine conditions vs. Plastic conditions
- Plastic Flow Rate
- How plastic flows, viscosity
- Viscosity curve
- Viscosity vs. temperature, lot variations and injection rate
- Flow balance
- Cruise Control on injection molding machines
- Two stage molding
- Case history
- Non-return valve (check ring)
- Nozzles/mixers
- Nozzle tips
- Plastic Pressure
- Basic hydraulics
- Hydraulic Pressure vs. Melt Pressure
- Back Pressure
- Intensification Ratio
- Pressure Loss
- Gate seal vs. unseal
- Pressure vs. time graphs
- Clamp force
- Platen wrap
- Pressure Loss Documentation
- Cooling Rate and Time
- Cycle Percentage
- Three types of cooling
- Turbulent Flow
- Series vs. parallel circuits
- Cooling issues
- Infrared Thermography
- Plastic Temperature
- The hopper
- Drying
- The feed throat
- Barrel vs. melt temperatures
- Screw components and design
- How plastics melt
- Back pressure
- Screw problems
- How to measure