The technical characteristics of HIPS plate extrusion equipment for refrigerator are described in detail

In the production process of refrigerators, ABS/HIPS plate and door liner are mainly obtained by vacuum blister forming method, ABS/HIPS plate is processed by extruder extrusion forming method,  ABS/HIPS sheet extrusion molding refers to the ABS/HIPS raw materials in the extruder rotating screw and barrel between transportation, compression, melting, plasticizing, and then quantitative through the mouth die of the extrusion machine head. 

Production of continuous ABS/HIPS sheet processing process.  ABS/HIPS plate extruder is mainly composed of barrel, screw, head, shunt plate and filter, mouth die, calender roller, traction device, shear device, drying bin, control system and heating transmission system, etc. Now, aiming at the production process characteristics of ABS/HIPS plate, some easy to affect the quality of the plate are analyzed as follows.  

The barrel and the screw are the core parts of the extruder.  The barrel is a cylindrical container with a screw. The friction and shear forces generated by the screw during rotation melt the material, which is then transmitted through the barrel to the nose part of the machine.  The internal environment of the barrel is determined by high temperature, high pressure, and the relatively high surface velocity at which material is transported inside the barrel.  

Therefore, during the operation of the extruder, the barrel and the screw will wear, so that the performance of the extruder will decline.  Wear can be divided into three types: adhesion wear, friction wear and corrosion wear.  Adhesion wear is caused by contact between screw thread and cylinder wall.  Friction wear is caused by the addition of solid particles of raw materials, inorganic fillers or some solid additives.