Screw of chemical fiber machine
Brief introduction:
The screw is mainly used for melt spinning of PET, PA6, PA66, PP and other slices. The design uses low temperature mixture element, good plasticizing performance. The use of professional processing technology, so that the screw, barrel manufacturing accuracy is higher, better linearity.
Technical indicators:
Screw processing diameter range: ø 25- ø 200
Aspect ratio: L/D=25 ~ 28
Hardness: HB240° ~ 280°
Nitriding hardness: HV850° ~ 1000°
Nitriding depth: 0.45 ~ 0.7mm
Nitride brittleness: ≤ secondary
Surface roughness: Ra0.4
Screw straightness: 0.015mm
Nitriding surface hard chrome plating: HV≥900HV
Chromium plating thickness: 0.05 ~ 0.10mm
| Specification of extruder | The screw | Length to diameter ratio | Maximum extrusion capacity | The screw rotation speed | Head pressure | Transmission power | Heating power | Heating section | The heating voltage |
| The diameter of | L/D | （PET） | （r/min） | （MPa） | （KW） | （KW） | （V） | ||
| （kg/h） | |||||||||
| 25/25 | φ25 | 25:01:00 | 8 | 20-90 | 15-25 | 2.5 | 3 | 3 | 220 |
| 45/25 | φ45 | 25:01:00 | 38 | 20-90 | 15-25 | 7.5 | 14 | 3 | 220 |
| 65/25 | φ65 | 25:01:00 | 80 | 20-90 | 15-25 | 18.5 | 16 | 5 | 220 |
| 80/25 | φ80 | 25:01:00 | 120 | 20-80 | 15-25 | 37 | 27 | 5 | 220 |
| 90/25 | φ90 | 25:01:00 | 220 | 20-80 | 15-25 | 45 | 32 | 5 | 220 |
| 105/25 | φ105 | 25:01:00 | 300 | 20-70 | 15-25 | 55 | 45 | 5 | 220 |
| 120/25 | φ120 | 25:01:00 | 440 | 20-60 | 15-25 | 75 | 54 | 6 | 220 |
| 130/25 | φ130 | 25:01:00 | 500 | 20-60 | 15-25 | 90 | 57 | 6 | 220 |
| 135/25 | φ135 | 25:01:00 | 550 | 20-60 | 15-25 | 90 | 63 | 6 | 220 |
| 150/25 | φ150 | 25:01:00 | 700 | 20-60 | 15-25 | 110 | 76.5 | 6 | 380 |
| 160/25 | φ160 | 25:01:00 | 780 | 20-60 | 15-25 | 132 | 85.5 | 6 | 380 |
| 170/25 | φ170 | 25:01:00 | 900 | 20-60 | 15-25 | 160 | 103.5 | 7 | 380 |
| 180/25 | φ180 | 25:01:00 | 1050 | 20-60 | 15-25 | 180 | 110 | 7 | 380 |
| 200/25 | φ200 | 25:01:00 | 1400 | 20-60 | 15-25 | 220 | 150 | 7 | 380 |
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