Processing Machinery
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PPO High-Impact Grade Application
Problem Phenomenon
[Problem Phenomenon] Automotive parts need PPO heat resistance and also high impact resistance, but standard grades have insufficient toughness
Cause Analysis
PPO high-impact grades (TN15/STN20) are suitable for automotive industry parts; elastomer modification improves toughness while maintaining the heat-resistant backbone; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
Select high-impact grades for automotive parts with impact requirements; verify low-temperature impact according to working conditions; check the rigidity-toughness balance according to structural design; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PPO high-impact grades TN15/STN20 give automotive parts both rigidity and toughness; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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