文档介绍：л????? CAD ????? QQ 194535455 ????????〦???δ?????εθ?????????????〃??жθ???????〦????θ?ф????????????????〦????ж???????????φ??????????????????????????????????PE ?????????????????????儎???????????????????θ???????????????俌????????????????????θ?????????????????????θ??????????????????????????????????????????????θ??????????????????????????????θ????????сθ??????????″┐???θ???????????????????ж???????θ????????儎θ???????θ?ж???????????θ???????ж??????????????????????????θ????????у?????????????????????俌????????????ф?????θ????????????θ??????????????θ?????????θ??????????ぁ??? AutoCAD ??????????????χ??????????????: ???χ???χ???χ???χ???л????? CAD ????? QQ 194535455 Abstract Plastic extrusion machine called extruder (aka extruder), plastic extruder also belongs to one of the types of plastic machinery, plastic extruder is often referred to the as the host, and its support of the subsequent equipment, plastic extrusion molding machine is known as auxiliary machines. The general extruder has five major parts: the extrusion part, the transmission part, the machine head, the heating and cooling system, the electric control system. Extruder for the production of PE pipe. The pipe has the advantages of heat resistance, aging resistance, high mechanical strength, environmental stress cracking resistance, creep resistance, etc. it is the first choice for the transportation of gas and city water supply pipeline between city and city. Extruder is the plastic industry's most basic processing machinery, extruder according to the direction of the flow of the nose and the angle between the center line of the screw, can be divided into a right angle head and nose, etc.. The working mechanism of the screw extruder is to rely on the pressure and shearing force produced by the rotation of the screw, so that the material can be fully mixed and uniformly mixed. Strip plastic join feeding port, under the action of the screw rotation, plastics are rubbed into ball shape along the screw gr