Molds & Tooling
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Gate type, size, and position design affect product quality
Fenómeno del problema
Gate type, size, and position design affect product quality
Análisis de la causa
Improper gate type selection (pin gate/edge gate/fan gate)
Gate size too small, premature freeze-off
Improper gate position, producing orientation or weld lines
Insufficient number of gates, unbalanced flow
Insufficient cooling at the gate area, stress concentration
Solución
Select gate type according to cellulose acetate butyrate and product
Gate thickness ≥60% of wall thickness
Gate position avoids weld lines and high stress areas
Multiple gates ensure flow balance
Strengthen gate area cooling
Conclusión clave
The gate needs to be reasonably designed according to material and product
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