Injection molding advanced troubleshooting guide : the 4M approach /

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This highly practical troubleshooting guide solves injection molding problems systematically and quickly. The rigorous but user-friendly approach employs the authors' proven "STOP" methodology, considering molding process, mold, machine, and material (4M's) as possible sources of...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autores principales: Kerkstra, Randy (Autor), Brammer, Steve (Chemical engineer) (Autor)
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Munich : Hanser, [2021]
Edición:2nd edition.
Temas:
Reaction injection molding.
Injection molding of plastics.
Matières plastiques > Moulage par injection.
injection molding.
Injection molding of plastics
Reaction injection molding
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Intro
  • Preface
  • About the Authors
  • Contents
  • 1 Troubleshooting Methodology
  • 1.1 Troubleshooting
  • 1.2 What Makes an Effective Troubleshooter?
  • 1.3 What Makes an Ineffective Troubleshooter?
  • 1.4 Troubleshooting Methodology
  • 1.4.1 STOP: Systematically
  • 1.4.2 STOP: Think
  • 1.4.3 STOP: Observe
  • 1.4.4 STOP: Proceed
  • 1.4.5 STOP: Troubleshooting Cycle
  • 1.4.6 Hard Fix versus Processing around Problem
  • 1.4.7 Troubleshooting Tools
  • 1.4.8 Troubleshooting Methodology Summary
  • 2 Troubleshooting Tool Kit
  • 2.1 Lockout/Tagout
  • 2.2 Hand Tools
  • 2.3 Pyrometer
  • 2.4 Spotting Blue
  • 2.5 Measurement Tools
  • 2.6 Multimeter
  • 2.7 Process Monitoring Equipment
  • 2.8 Moisture Analyzer
  • 2.9 Dew Point Meter
  • 2.10 Flashlight
  • 2.11 Microscope/Magnifying Glass
  • 2.12 Silly Putty
  • 2.13 Inspection Mirror
  • 2.14 Thermal Imaging Camera
  • 2.15 Aluminum Tape
  • 2.16 Dial Indicator
  • 2.17 Purging Compound
  • 2.18 Grinder/Stones
  • 2.19 Camera
  • 2.20 Material Data
  • 2.21 Scale
  • 2.22 Flow Meter
  • 2.23 Mold Cleaning Supplies
  • 2.24 Miscellaneous Supplies
  • 3 Decoupled® or Scientific Molding
  • 4 Gating Details
  • 4.1 Gating
  • 4.2 Gate Size, Shape, and Taper
  • 4.3 Mental Picture Volume versus Pressure
  • 5 Mold Hydraulics
  • 5.1 Hydraulic Uses
  • 5.2 Set and Pull Pressure
  • 5.3 Cylinder Sizing
  • 5.4 Hydraulic Cores or Slides
  • 5.5 Multiple Sequences
  • 5.6 Mounting
  • 5.7 Switches
  • 6 Mold Texture and Polish
  • 6.1 Mold Texture
  • 6.2 Mold Polish
  • 7 Venting
  • 7.1 Venting Basics
  • 7.2 Alternate Venting
  • 7.3 Venting Conclusion
  • 8 Machine Performance
  • 8.1 Load Sensitivity
  • 8.2 Dynamic Check Valve Study
  • 8.3 Velocity Linearity
  • 8.4 10-Cycle Overlay
  • 8.5 Cycle Variation
  • 8.6 Velocity to Pressure Transfer
  • 8.6.1 Machine Control
  • 8.7 Machine Documentation
  • 9 Drying
  • 9.1 Introduction
  • 9.2 Keys to Drying
  • 9.2.1 Temperature
  • 9.2.2 Dry Air
  • 9.2.3 Air Flow
  • 9.2.4 Time
  • 9.3 Moisture Analysis
  • 9.4 Material Handling
  • 9.5 Material Concerns
  • 10 Purging
  • 10.1 Purging Impact
  • 10.2 Purging Method Example
  • 10.3 Purging Compounds
  • 11 Hot Runners
  • 11.1 Hot Runner Advantages
  • 11.2 Heaters and Thermocouples
  • 11.3 Hang Up Areas
  • 11.4 Hot Drop Tips
  • 11.5 Drooling, Stringing, and Sprue Sticking
  • 11.6 Freeze Off
  • 11.7 Orifice Size
  • 11.8 Leakage
  • 11.9 Zones and Wiring
  • 11.10 Hot Runner Troubleshooting
  • 12 Cavity Balance
  • 12.1 Flow Length
  • 12.2 Flow Diameter
  • 12.3 Shear
  • 12.4 Cooling
  • 12.5 Venting
  • 12.6 Clamp Pressure
  • 12.7 Cavity Fill Balance Study
  • 12.8 Artificial Balance
  • 12.8.1 Family Molds
  • 13 Cavity Instrumentation
  • 13.1 Cavity Pressure Technology
  • 13.2 Cavity Thermocouples
  • 13.3 Process Documentation
  • 13.4 Process Control
  • 13.5 Additional Monitoring Options
  • 14 Mold Cooling
  • 14.1 Mold Cooling Importance
  • 14.2 Water Flow
  • 14.3 Documentation
  • 14.4 Tooling Techniques

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