Processing Machinery
4 görüntüleme
PVC Processing Window 160-195℃
Sorun Belirtisi
PVC products yellow and discolor, degradation signs appear when barrel temperature is slightly high, process adjustment space extremely small
Neden Analizi
PVC is the general-purpose plastic with the worst thermal stability, processing window only 160-195℃, absolute upper limit 200℃; exceeding it starts the de-HCl degradation chain reaction, temperature tolerance only ±5-10℃
Çözüm
①Melt temperature rigid 175-195℃, soft 160-180℃; ②Absolutely not exceeding 200℃; ③Temperature control precision ±3℃ and regularly calibrate thermocouples
Temel Çıkarım
PVC temperature discipline is the strictest among general-purpose plastics; 200℃ is an untouchable red line, the narrow window determines dual high requirements for equipment and management; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
Bu faydalı oldu mu?
0 kişi bunu faydalı buldu
Geri bildiriminiz için teşekkürler!