The key points of attention in the operation of PP spinning machine
Before starting the PP spinning machine, check whether there is any problem in each component.
1、The driving part shall operate smoothly without abnormal sound.
2、Under normal working conditions, a screw extruder gearbox surface temperature rise shall not exceed 30 ℃.Metering pump gearbox temperature rise shall not exceed 20 ℃.
3、Environmental temperature 28 ℃, lower than spinning box before and after the thermal insulation layer surface average temperature should not be greater than 65 ℃.
4、No leakage at the pipe connection.
5、The wire channel and the contacting parts of the wire bundle should be smooth and free of wire hanging.
6、The gas tightness test of the biphenyl pipeline shall be conducted according to the specified value of technical documents, and no leakage shall be allowed.
7、The protective earthing of metal case is reliable, and the ground resistance is no more than 0.1 Q.