Molds & Tooling
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Internal Shrinkage Porosity in Thick-Walled CPE Products
Problem Phenomenon
The center of thick-walled parts is loose or has voids
Cause Analysis
The center cools slowly and the feeding runner solidifies too early
Solution
Optimize gate position and size, extend holding pressure, and increase pressure
Key Takeaway
Internal quality of thick-walled parts is a technical difficulty
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