What is cable extrusion?Cable extrusion is an important manufacturing process mainly used to produce various types of wires and cables.Through cable extrusion,plastic raw materials can be processed into cables of different specifications and properties to meet the needs of different fields and applications.

　　Cable extrusion is to add plastic raw materials into the extruder.Under the action of high temperature and high pressure,the plastic raw materials will melt and plasticize into a fluid state.Then,through a specific mold and die shape,the plastic raw material is extruded into a continuous cable with a certain cross-sectional shape.During the extrusion process,the plastic raw materials will go through orientation,cooling and winding,and finally form cable products with certain mechanical,electrical and chemical properties.

　　The principle of cable extrusion mainly includes heating,plasticizing,extrusion and cooling.During the heating stage,the plastic raw material absorbs heat and softens so that it can be completely melted during the subsequent plasticizing stage.During the plasticizing stage,the plastic raw material is fully melted and fluidized so that it can pass smoothly through the mold and die.In the extrusion stage,plastic raw materials are extruded into continuous cables with a certain cross-sectional shape.Finally,in the cooling stage,the cable is rapidly cooled and shaped to obtain the required physical properties and shape stability.

　　Cable extrusion products mainly include various types of wires and cables,such as power cables,communication cables,control cables,etc.These cables have different characteristics and requirements,such as high insulation performance,low resistivity,good mechanical strength and corrosion resistance,etc.In order to meet these requirements,suitable plastic raw materials and production processes need to be selected during the cable extrusion process,and each production link must be strictly controlled and managed.

　　Cable extrusion has wide application value in the production of wires and cables.In the actual production process,some common issues need to be paid attention to,such as stretch ratio,shrinkage ratio,orientation,etc.At the same time,raw materials,production processes and equipment parameters need to be reasonably selected and controlled based on product characteristics and requirements.