Title:
SCREW FOR EXTRUDER, SCREW EXTRUDER AND KNEADING EXTRUDER USING THE SAME
Document Type and Number:
Japanese Patent JP2005066946
Kind Code:
A
Abstract:
To provide the screw for use in an extruder capable of effectively preventing an obtained compressed material from locally becoming non-uniform in characteristics and being varied in distribution of the characteristics or having discontinuous parts (screw marks) formed in the obtained compressed material.
In the screw 29 for use in the extruder having a drive shaft 25 and the stirring blade 27 arranged on the drive shaft 25, a stirring blade (intermittent blade 27c), wherein the continuous surface of the blade is below one round centering around the drive shaft 25, is arranged to at least a part from the leading end of the drive shaft 25 in the stirring blade 27.
Inventors:
HAYASHI SHINZO
Application Number:
JP2003297544A
Publication Date:
March 17, 2005
Filing Date:
August 21, 2003
Export Citation:
Assignee:
NGK INSULATORS LTD
International Classes:
B01F7/08; B28B13/02; B29C48/50; B29C48/76; B30B11/24; B29C48/03; (IPC1-7): B29C47/60; B01F7/08; B28B13/02
Attorney, Agent or Firm:
Ippei Watanabe