Title:
SIDE FEEDER, EXTRUDER HAVING THE SAME, AND EXTRUSION METHOD USING EXTRUDER
Document Type and Number:
Japanese Patent JP2015030132
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a side feeder in which the bulk density of a powder raw material is increased so that the conveying capacity of the side feeder is improved and the supply stability thereof is made excellent.SOLUTION: The side feeder includes a side feeder cylinder 2 and a side feeder screw 1 and has a side feeder supply port 3 being an opening of the side feeder cylinder 2. The side feeder screw 1 has at least one partial screw satisfying all of the following conditions (a)-(d). The condition (a) is that a twist angle γ of the screw is 5-Z degree on condition that Z=eis satisfied. The condition (b) is that a ratio (D/d) of the major axis D of the screw to the minor axis d thereof is 1.4-2.5. The condition (c) is that Hb/D=0.05-0.4. The condition (d) is that a ratio (Ls/D) of the element length Ls of the screw to the major axis D thereof is 0.8-20.0.
Inventors:
OTA YOSHIO
Application Number:
JP2013159613A
Publication Date:
February 16, 2015
Filing Date:
July 31, 2013
Export Citation:
Assignee:
ASAHI KASEI CHEMICALS CORP
International Classes:
B29C47/40; B29C31/04; B29C47/60
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Kazuhiko Naito
Toshifumi Onuki
Kazuhiko Naito
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