Study On Three-Dimensional Flow Of Coat-Hanger Die For Sheet Extrusion

Plastic sheet can be widely used in many fields, such as chemical, architecture, and its applications in many new fields are constantly increased. At. the same time, coat-hanger die is extraordinary widely used in sheet extrusion because it can extrude wide product and can be applicable to the extrusion of many plastics.Generally, the design of coat-hanger die was based on experience, which would cost more time to test the die, as a result, much part of the design were failed and had to be deserted. It could result in the waste of manpower and resources. Therefore, the study on coat-hanger die was of great significance.In the past, many researches were based on isothermal models in the study of coat-hanger die, which was much different from the fact. In this study, Non-Isothermal model was established so that it was more close to the real fact.In this study, the mathematical, physical and finite element models, which suitd for sheet extrusion main performance index, were brought...