Molds & Tooling
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PARA Hot Runner Design
Problem Phenomenon
PARA hot runner system failure; design requirements for high-temperature crystalline polymers not met.
Cause Analysis
PARA hot runner systems must be designed for high-temperature crystalline polymers; temperature control at 250~280°C; crystalline polymer thermal management; manifold and nozzle matching.
Solution
①Design the hot runner for high-temperature crystalline polymers; ②Precise temperature control at 250~280°C; ③Supplier technical confirmation; ④Regular maintenance.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PARA hot runner is a dedicated design rather than a universal one; the temperature window is precise; supplier collaboration ensures matching.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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