| PVC | CPVC | ||
| Machine | Screw Mortar：High Torque Screw：Parallel φ60-170 Conical φ50-85 |
Screw Mortar：High Torque Screw：Parallel φ60-135 Conical φ50-70 |
|
| Condition | Screw rotation | ー | Lower than PVC |
| Barrel temp. | 300-340 ℉ | 340-410 ℉ | |
| Mold type | Stainless Steel Chrome Plate | Stainless Steel Chrome Plate Less volume (residence part) Mold angle |
|
| PVC | CPVC | ||
| Machine | Screw Mortar: High Torque Barrel Cooling: Blower |
Screw Mortar: High Torque Barrel Cooling: Blower Barrel Zone: 4-5 Zone Nozzle: Short Nozzle、φ：Larger than PVC |
|
| Condition | Screw Rotation | 9-14 m/sec | 8-13 m/sec (lower than PVC) |
| Barrel Temp. | 320 – 365 ℉ | 320 – 392 ℉ | |
| Holding Pressure | 100 – 170 MPa | 100 – 170 MPa | |
| Mold Type | Stainless Steel Chrome Plate Runner: Thick Hot Runner: No Need Gate: Direct Gate Wall Thickness ＞ Gate Diameter |
Stainless Steel Chrome Plate Runner: Thick Hot Runner: No Need Gate: Direct Gate Larger than PVC |
|
| PVC | CPVC | ||
| Machine | Single Screw Machine Screw: Dulmate, Fullfight |
Single Screw Machine Screw: Recommend Fullfight (Dulmate) L/D = 22 – 25 Compression Ratio: 2.5 – 3.2 |
|
| Condition | Screw rotation | 15~ rpm (65mm single) | 15–25 rpm (65mm single) |
| Barrel temp. | 284 – 338 ℉ | 300 – 370 ℉ | |
| Mold type | Stainless Steel Chrome Plate | Stainless Steel Chrome Plate | |