Extruder common problem analysis

The plastic extruder out of the tube is not smooth is how is it
Extrusion die cooling section temperature is too high. Mold surface damage.
2.pe and pvc extruder What is the difference
PVC need corrosion-resistant equipment mold
3.pvc pipe extruder and ppr pipe extruder What is the difference?
PVC is a heat-sensitive plastic, screw-type ordinary thread, there is no enhanced screw components.
PVC plastic is a multi-component plastic according to different purposes can be added to different additives due to different components of PVC products exhibit different physical and mechanical properties for different occasions. The PVC plastic pipe in the plastic pipe in a larger proportion.
PPR pipe, also known as random copolymer polypropylene pipe, the use of thermal welding methods, a dedicated welding and cutting tools, high plasticity. Is recognized as green products.
PPR pipe with traditional cast iron pipe, galvanized steel pipe, cement pipe and other pipe compared with the energy saving materials, environmental protection, light weight, corrosion resistance, smooth and non-scaling wall, construction and maintenance is simple, long service life, Widely used in building water supply and drainage, urban and rural drainage, urban gas, power and cable jacket, industrial fluid transport, irrigation and other construction, municipal, industrial and agricultural fields.
4. How to judge the quality of extruded plastic mold is good or bad
And the quality of the plastic itself, the extruder performance, extrusion temperature, retractable cord tension, speed, core preheating, cooling after plastic extrusion,