Processing Machinery
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PPO Power Tool Housing
Problem Phenomenon
[Problem Phenomenon] Power tool housings need a structural material that is heat-resistant, impact-resistant and electrically insulating
Cause Analysis
PPE/HIPS is used for household appliance parts and housings such as power tools: heat-resistant, dimensionally stable, and excellent electrical insulation; high-impact grades cover drop impact requirements; 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 PPO grades for tool housings; select materials for insulating parts according to CTI rating; utilize its electrical properties in double-insulation design; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PPO for power tool housings combines heat resistance, insulation and impact resistance in one; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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