Injection Molding
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Difficult Demolding of PBT Micro Precision Parts
Problem Phenomenon
Micro PBT injection-molded parts are difficult to demold, and the products are damaged when taken out.
Cause Analysis
The draft angle of the mold micro-structure is insufficient; PBT shrinks and clamps the core with large force; the demolding mechanism is unsuitable.
Solution
Increase the draft angle of the micro-structure; use specially coated molds (DLC, etc.); optimize the demolding mechanism.
Key Takeaway
The mold and demolding design of PBT micro parts is the key.
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