Polypropylene spinning machine operating environment, and how to test whether the normal operation of polypropylene spinning machine, please see the following regulations:
1 transmission part of the operation should be smooth, no abnormal sound.
2 Under normal working conditions, screw extruder gear box surface temperature should not exceed 30 ℃. Metering pump gearbox temperature should not exceed 20 ℃.
3 Ambient temperature is below 28 ℃, the average temperature before and after the insulation surface of the spinning box should not exceed 65 ℃.
4 pipeline connections shall not leak.
5 hair dryer wind speed should be stable, silk Cambodia without drastic or parallel wire phenomenon. The difference between the wind speed on the same horizontal plane of the single ring spinning unit shall not be more than 15, and the difference between the wind speeds on the same horizontal plane in the single side spinning unit shall not be greater than 20.
6 tow passage and tow contact parts should be smooth, not hanging wire.
7 Diphenyl pipe should be gas tightness test according to the specification of technical documents, without leakage.
8 Spinning boxes shall be manufactured, tested and accepted according to GB 150 and supervised by TSG R0004--2009.
9 heat spinning box fixed temperature measurement point temperature difference should not exceed 2 ℃.
10 electric heating spinning head fixed temperature measurement point temperature difference should not exceed 3 ℃.
11 screw extruder temperature control accuracy of the district should be ± 2 ℃.
12 screw extruder melt pressure control accuracy should be ± 0.3 MPa.
13 metering pump should be consistent with the provisions of FZ / T 92026.
14 spinneret shall comply with the provisions of FZ / T 92038.
15 Good insulation of electrical equipment and wiring, insulation resistance ≥1 Mi2.
16 metal enclosure protective grounding reliable, grounding resistance ≤ 0.1 Q.
17 Electrical components shall withstand a withstand voltage test for 1 min at a test voltage ≥1,500 V and shall be disconnected from the test not capable of withstanding the above high voltage components.
18 Spinning machine coating should be consistent with the provisions of FZ / T 90074.