PVC fiber sofe hose machine is undoubtedly a very important process control process, and the quality control directly affects the quality of the product.
PVC fiber sofe hose machine heating (external heat): At present, PVC fiber sofe hose machine uses electric heating, clean, effective and easy to control heating. That is to say, PVC fiber sofe hose machine electric heater (with resistance wire) is packaged on the barrel, and the material is heated and heated, and the material is heated and melted by the joint action of heat conduction, convection and radiation. The current heaters usually have mica heaters, ceramic heaters, cast aluminum heaters, cast copper heaters, cast iron heaters, etc. The efficacy of various heaters is somewhat different. The mica heater has lower cost and is easy to process. The service life is short; ceramic heaters and cast iron heaters have higher power, faster heating, can rise above 300 °C or higher, and have a relatively short life span, which is longer than mica heaters. Cast aluminum heaters and cast copper heaters are commonly used because of their high thermal efficiency, good thermal insulation performance and long service life.
PVC fiber sofe hose machine Shear friction heat (internal heat) during extrusion: the heat generated by deformation of plastic particles due to strong extrusion pressure during extrusion, between plastic particles and between particles and machine Heat generated by friction between the barrel and the screw. During the heating process, the temperature rise inertia, in the heating and heating process, regardless of the heating method, stop heating, because the temperature rise inertia, the temperature will continue to rise, then you need to watch the control parameters of the PVC fiber sofe hose machine temperature control instrument , precision, etc. PVC fiber sofe hose machine The shear friction heat (internal heat) in the plastic extrusion process, the internal heat generated causes the processing temperature in the PVC fiber sofe hose machine to rise continuously, destroying the characteristics of the material and causing the material to become a waste product.