Title:
EXTRUSION DEVICE, AND METHOD FOR MANUFACTURING RESIN PRODUCT
Document Type and Number:
WIPO Patent Application WO/2022/168373
Kind Code:
A1
Abstract:
This extrusion device includes: a cylinder 2; and a die 5 attached to the cylinder 2. The die 5 includes: a resin flowpath 22 to which a molten resin is supplied from the cylinder 22; and a hole 21 which is connected to the resin flowpath 22 and which is for discharging the molten resin. The extrusion device further includes: a pressure measurement unit 31 for measuring the pressure of the molten resin in the cylinder 2 or in the die 5; and a calculation unit for calculating the viscosity of the molten resin on the basis of the value measured by the pressure measurement unit 31.
Inventors:
YOKOMIZO KAZUYA (JP)
FUKUZAWA YOHEI (JP)
FUKUZAWA YOHEI (JP)
Application Number:
PCT/JP2021/037885
Publication Date:
August 11, 2022
Filing Date:
October 13, 2021
Export Citation:
Assignee:
JAPAN STEEL WORKS LTD (JP)
International Classes:
B29B9/06; B29C48/05; B29C48/693; B29C48/695; B29C48/92; G01L7/00; G01N11/04
Domestic Patent References:
| WO1996014930A2 | 1996-05-23 |
Foreign References:
| JP2016007819A | 2016-01-18 | |||
| JP2003121330A | 2003-04-23 | |||
| JPH05329864A | 1993-12-14 | |||
| JPS6234532B2 | 1987-07-28 | |||
| JPH05281128A | 1993-10-29 | |||
| JP2005349794A | 2005-12-22 | |||
| JP2019027959A | 2019-02-21 | |||
| JPH01292233A | 1989-11-24 | |||
| JP2003262579A | 2003-09-19 | |||
| US7143637B1 | 2006-12-05 | |||
| JP2016007819A | 2016-01-18 |
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (JP)
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