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设计挤压模时,除了选择挤压本型号尺寸型材应具有足够强度的模子结构外,对纵、横向几何形状的精确度和挤压型材的表面光洁度有影响的因素加以考虑也具有很大意义。设计模子时有以下几个主要问题:模孔的配置;模孔制作尺寸的确定和使型材截面各个部位流动速度获得均匀方法的选择。
In designing the extrusion die, it is also significant to consider the factors that affect the accuracy of the longitudinal and transverse geometry and the surface finish of the extruded profile, in addition to the choice of the die structure to be of sufficient strength to be extruded . Mold design has the following major issues: the configuration of die hole; die hole production size to determine and make all sections of the cross-section of the flow rate to obtain a uniform method of choice.