Injection molding advanced troubleshooting guide : the 4M approach /
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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| Main Authors: | , |
|---|---|
| Format: | Electronic eBook |
| Language: | English |
| Published: |
Munich :
Hanser,
[2021]
|
| Edition: | 2nd edition. |
| Subjects: | |
| Online Access: | CONNECT |
Table of Contents:
- 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
- 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
- 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
