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Elsevier

Injection Molding Advanced Troubleshooting Guide

  • 1st Edition - May 23, 2018
  • Latest edition
  • Author: Randy Kerkstra
  • Language: English

This highly practical troubleshooting guide solves problems at the machine systematically and quickly. Drawing on a wealth of hands-on experience from the authors, who have bu… Read more

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Description

This highly practical troubleshooting guide solves problems at the machine systematically and quickly. Drawing on a wealth of hands-on experience from the authors, who have built strong reputations in the field, the book is structured by type of problem/solution. Thus, it is an ideal reference to be consulted at the machine.

Included is valuable information on robust process windows, cycle time evaluations, scrap savings, and runners/gates with no existing standard in the industry. No other book provides the unique insights found here.

Table of contents

1. Troubleshooting Methodology2. Troubleshooting Tool Kit3. Decoupled® or Scientific Molding4. Gating Details5. Mold Hydraulics6. Mold Texture and Polish7. Venting8. Machine Performance9. Drying10. Purging11. Hot Runners12. Cavity Balance13. Cavity Instrumentation14. Mold Cooling15. Black or Brown Specks16. Blush17. Brown Streaks18. Bubbles19. Buildup20. Burns21. Cloudiness22. Color Swirls23. Contamination24. Cracking25. Delamination26. Dimensions27. Excessive Cycle Time28. High Fill Pressure29. Flaking30. Flash31. Flow Lines32. Glass Fibers on Surface33. Gloss Variation34. Jetting35. Part Sticking on Cover36. Part Sticking on Ejector37. Pin Push38. Read-through39. Scuffs and Scratches40. Short Shot41. Sink42. Splay43. Sprue Sticking44. Stringers45. Voids46. Warp47. Weld Lines

Product details

  • Edition: 1
  • Latest edition
  • Published: May 23, 2018
  • Language: English

About the author

RK

Randy Kerkstra

Randy Kerkstra has worked in the plastics industry for over 29 years, with specialism in troubleshooting injection molding. He also has much experience with injection molds, with 14 years in the tool shop environment as a mold maker/designer and over 15 maintaining and repairing/troubleshooting thousands of molds in the production environment. He has years of research with gate geometry, runner/sprue waste, and reducing part defects with a focus on the mold and how it impacts these issues. He also co-owns KB Molding Solutions, a training and consulting company. He currently works in sales and product development for PCS Company.

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