Title:
EXTRUDER
Document Type and Number:
WIPO Patent Application WO/2020/039887
Kind Code:
A1
Abstract:
An extruder according to the present invention includes a supply part from which a material is supplied, a pressure increasing part that increases the pressure of the material while pushing out the material from a supply side toward an extruding side, and a screw. The screw includes a shaft and a flight section. The flight section projects radially outward from the shaft and has a spiral shape. The effective sectional area in the pressure increasing part continuously decreases toward the extruding side. The lead of the flight section in the pressure increasing part continuously increases toward the extruding side.
Inventors:
FUKUTANI KAZUHISA
HIGASHI KOSUKE
HIGASHI KOSUKE
Application Number:
PCT/JP2019/030371
Publication Date:
February 27, 2020
Filing Date:
August 01, 2019
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
B29C48/41; B29B7/42; B29B7/48; B29C48/525
Domestic Patent References:
| WO2017183531A1 | 2017-10-26 | |||
| WO2017126572A1 | 2017-07-27 |
Foreign References:
| JP2002513693A | 2002-05-14 | |||
| JP2013528515A | 2013-07-11 | |||
| JP2016182687A | 2016-10-20 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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