Brief Introduction of Extruder for Polyethylene Pipe

  The extruder is one of the essential cores of the polyethylene pipe extrusion production line. For the processing of polyethylene pipe, zui extensively used mainframe are unmarried-screw extruder. 

  Unmarried screw extruder is a sort of extruder that has a history of numerous many years. for plenty domestic firms, the layout of single screw extruder continues to be primarily based at the traditional layout concept. consequently, this form of single-screw extruder has the subsequent defects:

  low torque, low extrusion, high mixing and solid extrusion conflict, high output depends on massive diameter screw, 

  Therefore, the traditional unmarried-screw extruder can best method the substances underneath pe63, because of the limit of extrusion quantity, it's miles tough to provide pe pipe with massive diameter and excessive strain grade. if we produce pe pipe with φ400 and pn0.8, we use the traditional extruder, ought to pick out the screw diameter φ200mm or extra single screw mainframe, which increases the difficulty of processing system, greater importantly, the output/energy ratio is simply too low, electricity consumption is simply too massive. 

  Therefore, that allows you to acquire the soften high-quality and product best, continuously enhance manufacturing performance, first-rate unmarried-screw extruder have to meet the subsequent requirements:

  High torque, to make sure excessive extrusion extent, affordable screw diameter, extremely high extrusion extent, best mixing impact, strong excessive extrusion volume, strict manipulate of shearing action to gain the precise material temperature, to save you the degradation and move-linking of materials resulting in adjustments in houses, greater processing adaptability, in smaller fashions to reap a better extrusion capacity, simplest using willing groove bushing extruder may be executed. the extruder is geared up with a feeding bushing with a special shape. the surface of the internal hollow is supplied with some of willing grooves. 

  The variety and depth of grooves additionally have an effect on the output of the extruder, a spiral annular groove cooling gadget is arranged on the groove shell to comprehend temperature manage of the feeding area and isolation from the adjoining high-temperature barrel vicinity. in this device, the output of the complete extrusion line is decided no longer through the lower back strain of the gadget, nor by way of the intensity of the screw groove in the easy feeding section, however by the conveying performance.