Processing Machinery
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PP Pipe Application
Fenómeno do problema
【Problem Phenomenon】Hot and cold water pipes need heat resistance, pressure resistance and long service life
Análise das causas
PP-R random copolymer pipes are heat-resistant, pressure-resistant (70°C long-term) and long-lived, and are the mainstream of home decoration hot and cold water pipes; PP-B/PP-H are used for industrial pipes; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Solução
Select PP-R for home water pipes; select PP-B/PP-H for industrial pipes; select the grade according to temperature and pressure; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
PP-R is the mainstream of home water pipes, heat-resistant, pressure-resistant and long-lived; 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 similar problems in the future
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