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Tool Design: AMPCO 940® Sprue Bushing
Notes:
- AMPCO 940 Thermal Conductivity is 6 times greater than P20 tool steel.
Critical Constraints
- Thermal conductivity is critical for amorphous polyester materials.
Notes:
- Amorphous polyester materials require a well cooled sprue bushing to maintain a good cycle time.
- Typically the base of the sprue is the thickest wall section on the molded part.
Adequate cooling of the area will help achieve good cycle times.
- The Ampcoloy 940 bushing is suggested for amorphous polyesters. It is available
through D&L Incorporated.
(Phone 1-800-269-6653).
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