Material Drying
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PPO GTX Grade Temperature Characteristics
Problem Phenomenon
【Problem Phenomenon】PPO/PA alloy GTX grades processed according to the PPO/PS process have many product defects
Cause Analysis
NORYL GTX is a PPO/PA alloy, drying 100-110℃×2-3h, mold temperature 80-100℃, purging according to nylon procedures; the PA component makes its process different from the pure PPO/PS system
Solution
Execute GTX grades according to the dedicated parameter table; purge using nylon procedures; for chemical resistance applications, verify medium compatibility according to the PA phase; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
GTX is a PA alloy; process and purging both follow the nylon system; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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