부틸고무의 압출을 위한 압출해석 및 다이설계

Butyl rubber is used as an adhesive and it is mainly used in the form of sheets. The goal of this studyis to design an extrusion die for the butyl rubber sheets using computer simulation. The extrusion die for the butylrubbersheets consists of manifold area and land area. In the manifold area, flows are spread from the entrance of the extrusiondie to the land area. In the land area, flows become stable to the flow direction and uniform sheet can be obtained. Islandarea is being installed in the land area to get uniform flow. Four parameters, angle of manifold, length of manifold, lengthof land and island, were examined in the computer simulation. The optimum geometry of the extrusion die is derivedwhich has a uniform flow in the width direction of the die.