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  Home > Plastics Industry Experts > Bob Hatch
 Articles, Books & Interviews

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Plastic Injection Molding Troubleshooter Series

Flattening the Warp
Eliminating Cracking and Crazing
Softer Materials Like Polyethylene Terephthalate Can be Harder to Mold
Watch the Subgates and the Venting in Nylon 6, Polyethylene & Polypropylene
Making Yellow Windows Appear Clear in Polyurethane
A Poor Flow Path: Crystalline and Amorphous Plastic Materials
Common Processing Problems (mp3 audio download)
Nylon Polyamide 6: nylon problems
Weak Plastic Coat Racks
Testy Plastic Tubes
Smaller Parts and Runners Have the Same Needs as Large Ones
Basics of Tab Gates
What Causes Parts To Warp?
Pin Gate Frustration
Thin-Wall Warpage
The Many Causes of Sink
Sizing For a Heated Sprue
A Poor Way To Fill 32 Cavities
Get The Gate Design Right
Big Parts Are Not Difficult To Mold
Gates and Amorphous Materials
Gate Defects Are Almost Always Design Related
Gate-Related Defects
Hot Runners and Living Hinges
Ejector Pin Gates are Sometimes Misunderstood
Gate Location Does Make a Difference
Flow marks tell on moldmaker
What caused the blush?
What made the part crack
Does acetal cycle slower?
A restricted flow mystery
A Troublesome family mold
Source: Injection Molding Magazine
 
 About Bob Hatch

Bob HatchBob Hatch is one of the leading on-the-spot problem solvers in the molding industry. Mr. Hatch spent time as the technical programs manager at Channel Prime Alliance and managed a molding operation for more than 25 years. Currently, he writes articles for Injection Molding Magazine under the pseudonym The Troubleshooter.

 

 

 

Bob Hatch
1803 Hull Avenue
Des Moines, Iowa 50313-4738
Phone: 515-326-2598
Email: bob.hatchthetroubleshooter@gmail.com
Website: www.plasticstroubleshooter.com


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