Material Drying
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PA66 cable tie harness parts
Problem Phenomenon
Cable ties break brittlely during winter construction, and the fracture rate rises after half a year in storage
Cause Analysis
Cable ties are at their dry-state brittleness peak after demolding, and low-temperature environment makes things worse; open storage keeps moisture content declining, and brittle fracture intensifies with storage time and environmental dryness; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience
Solution
①Moisture condition to equilibrium moisture content before leaving the factory; ②Sealed packaging to maintain the conditioned state; ③Select low-temperature resistant toughened grades for cold-region construction; after adjustment, take continuous samples to verify the effect, confirm stability before resuming mass production
Key Takeaway
Cable ties are the best example of the value of PA66 moisture conditioning; factory moisture conditioning plus sealed moisture retention eliminates brittle fracture before reaching the customer; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
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