Stevens, Davis, Miller & Mosher
Continuous extrusion method of manufacturing ceramic honeycomb structures with the aid of screw type vacuum extruding machine
 A continuous extrusion method of manufacturing ceramic honeycomb structures with the aid of a screw type vacuum extruding machine is disclosed. The method is characterized by making the temperature at the outer periphery of the ceramic raw material batch located in the rear of the extrusion die not lower than the temperature at the center portion of the batch. 
NGK Insulators, Ltd.
B B B
B28B B28B B28B
inventional inventional inventional
Akiyoshi Hiroshige
Kurishita Mizuno