The plastic power cord is mainly composed of a solid insulation layer, and the primary technical requirements for plastic insulation extrusion:
1) Degree of partial pain: The bias value of the thickness of the extruded insulation is the main indicator of the degree of extrusion work. Most of the product structure size and its bias value have clear rules in the specification.
2) Lubricity: The surface of the extruded insulation layer requires lubrication, and it should not present poor quality problems such as rough surface, charred and impurities.
3) Density: The cross section of the extruded insulation layer should be dense and strong, and the pinholes visible to the naked eye should be forbidden.