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Elsevier

Injection Molding Advanced Troubleshooting Guide

  • 2nd Edition - June 22, 2021
  • 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.

Key features

  • Troubleshooting field guide designed to be used at the machine and organized by commonly-encountered problems and their solutions
  • Provides solutions to problems with mold hydraulics, gating details, mold texture and polish, machine performance, purging, drying, and more
  • Hands-on approach is drawn from the wealth of professional experience of the authors

Readership

Engineers, material scientists, manufacturers; students in these fields

Table of contents

1. Troubleshooting Methodology2. Troubleshooting Tool Kit3. Decoupled or Scientific Molding4. Gating Details5. Mold Hydraulics6. Mold Texture and Polish7. Venting8. Machine Performance9. Drying, Purging10. Hot Runners11. Cavity Balance12. Cavity Instrumentation13. Mold Cooling14. Black or Brown Specks15. Blush16. Brown Streaks17. Bubbles18. Buildup19. Burns, Cloudiness20. Color Swirls21. Contamination22. Cracking23. Delamination, Dimensions24. Excessive Cycle Time25. High Fill Pressure26. Flaking27. Flash, Flow Lines28. Glass Fibers on Surface29. Gloss Variation30. Jetting31. Part Sticking on Cover32. Part Sticking on Ejector33. Pin Push, Read-through34. Scuffs and Scratches35. Short Shot36. Sink37. Splay38. Sprue Sticking39. Stringers40. Voids41. Warp42. Weld Lines

Product details

  • Edition: 2
  • Latest edition
  • Published: June 22, 2021
  • 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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