VARIABLE SECTION EXTRUDING MOLDING DEVICE CAPABLE OF FORMING A METALLIC NITRIDE FILM WITH GOOD STRENGTH, FRICTIONAL COEFFICIENT AND ABRASION RESISTANCE ON THE SURFACE OF AN AREA MAKING CONTACT WITH AN EXTRUDING MATERIAL

摘要

PURPOSE: A variable section extruding molding device is provided to enhance the surface roughness and quality of an extruded product.;CONSTITUTION: A variable section extruding molding device comprises a container(100), a stem, and variable dies(120). The container comprises an extruding hole. The container comprises a space unit, in which an extruding material(130) is charged. The stem(110) is located behind the container. The stem pressurizes the extruding material charged in the space unit in the container. The variable dies are mounted around the extruding hole of the container. The variable dies change the scale of the section shape of the extruded product. The extruded product is extruded to the shape of the extruding hole of the container by a driving unit.;COPYRIGHT KIPO 2012