Material Analysis
13 مشاهدة
PSU Ring-type Check Valve Wear
ظاهرة المشكلة
In PSU production, metering instability and melt backflow occur; product weight fluctuates; check valve wear was confirmed by inspection.
تحليل الأسباب
Ring-type check valves are recommended as more suitable for PSU processing; high-viscosity melt causes great wear on the check valve; after wear, sealing fails and metering becomes inaccurate; abrasive wear and high-temperature aging superimpose.
الحل
①Select ring-type check valve configuration; ②Regularly inspect check valve sealing condition; ③Replace promptly when wear exceeds limits; ④Include metering stability in routine inspection.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
الخلاصة الأساسية
PSU check valve selection has clear recommendations; wear inspection is included in preventive maintenance; metering stability directly reflects valve condition.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!