Molds & Tooling
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DSTDP product elliptical deformation
Problem Phenomenon
DSTDP round product ellipticity >1.03 after demolding
Cause Analysis
Asymmetric demolding force, product deforms under lateral force; uneven cooling, shrinkage differs in each direction
Solution
1) Uniform ejection design, 8-point ejection to avoid lateral force; 2) annular uniform cooling; 3) extend cooling time for full setting
Key Takeaway
Elliptical deformation is caused by asymmetric demolding force; uniform ejection is key
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