The phenomenon of poor plasticization of PPH pipeline: there is a toad skin phenomenon on the surface of the plastic layer; the temperature control is low, the indicator of the meter reflects the temperature is low, and the actual measured temperature is also the same; the plastic surface is black, and there are tiny cracks or no plasticization Particles; the plastic glue is not well sewn, and there is an obvious trace. Reasons for poor plasticization of PPH pipes: the temperature control is too low or the control is inappropriate; there are resin particles that are difficult to plasticize in the plastic; improper operation methods, the screw and traction speed are too fast, and the plastic is not completely plasticized; when granulating The plastic is mixed unevenly or the plastic itself has quality problems.
