Molds & Tooling
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PA6 Mold Temperature Controller Selection
Problem Phenomenon
Using a water temperature controller to control PA6 mold temperature cannot reach the required 90°C, and the product surface and dimensions are unstable
Cause Analysis
The upper limit of an atmospheric water temperature controller is about 95°C and the actual water supply temperature is even lower; the 60-90°C mold temperature required by PA6 is at the edge of equipment capability, and large temperature fluctuations cause process instability
Solution
When the mold temperature requirement is above 80°C, select an oil temperature controller or a pressurized water temperature controller with a control accuracy of ±1°C; the mold water circuit ensures sufficient flow, and the inlet-outlet water temperature difference is controlled within 5°C
Key Takeaway
Mold temperature equipment capability must have margin; the oil temperature controller is a safe choice for PA6 high mold temperature occasions; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
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