An extrusion die with changeable internal geometry for extrusion of multichannel ceramic tube

摘要

The present invention relates to an extrusion die with changeable internal geometry for extrusion of multichannel ceramic tube. The present invention may be used to modify the internal geometry of the die to change the die entry pressure and paste flow velocity and effect a proper extrusion with the changed paste Theology during the extrusion process. This will reduce the overall rejection in an industrial scale production. The present invented design may also be used to extrude multichannel green tube with various channel configuration viz. number, shape and size of channel and fixed outer diameter as per application requirement by only changing the internal configuration of the die without redesigning the whole die