Shop-floor troubleshooting skills are essential for solving defect problems and improving overall part quality. This comprehensive troubleshooting guide is intended for operators, technicians, engineers, supervisors and all others responsible for quickly identifying and solving process problems at the machine. Readers are guided through 23 of the most common defects, complete with full-color photographs of each defect, and are taught the relationships between machine, mold, material and operator.
Acknowledgements
Introduction
Chapter 1 : General Troubleshooting
Chapter 2 : Understanding the Molding Process
Chapter 3 : Venting the Mold
Chapter 4 : Understanding the Material
Chapter 5 : The Operator
Chapter 6 : Recommended Melt Temperatures
Chapter 7 : Recommended Mold Temperatures
Chapter 8 : Glossary of Common Terms
Chapter 9 : Black Specks
Chapter 10 : Blisters
Chapter 11 : Blush
Chapter 12 : Bowing
Chapter 13 : Brittleness
Chapter 14 : Bubbles (Voids)
Chapter 15 : Burn Marks
Chapter 16 : Clear Spots
Chapter 17 : Cloudy Appearance
Chapter 18 : Contamination
Chapter 19 : Cracking/Crazing
Chapter 20 : Delamination
Chapter 21 : Discoloration
Chapter 22 : Flash
Chapter 23 : Flow Lines
Chapter 24 : Gloss (Low)
Chapter 25 : Jetting
Chapter 26 : Knit Lines (Welds)
Chapter 27 : NonFill (Short Shots)
Chapter 28 : Shrinkage (Excessive)
Chapter 29 : Sink Marks
Chapter 30 : Splay
Chapter 31 : Warpage
