JPS5745430A - Slit die rheometer - Google Patents

Slit die rheometer

Info

Publication number
JPS5745430A
JPS5745430A JP12144580A JP12144580A JPS5745430A JP S5745430 A JPS5745430 A JP S5745430A JP 12144580 A JP12144580 A JP 12144580A JP 12144580 A JP12144580 A JP 12144580A JP S5745430 A JPS5745430 A JP S5745430A
Authority
JP
Japan
Prior art keywords
pressure
signal
displacement
slit die
plunger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP12144580A
Other languages
Japanese (ja)
Other versions
JPH0124253B2 (en
Inventor
Hiroshi Ohata
Kazutomi Fukui
Hidekatsu Gotou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JSR Corp
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Nippon Synthetic Chemical Industry Co Ltd
Japan Synthetic Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Synthetic Chemical Industry Co Ltd, Japan Synthetic Rubber Co Ltd filed Critical Nippon Synthetic Chemical Industry Co Ltd
Priority to JP12144580A priority Critical patent/JPS5745430A/en
Publication of JPS5745430A publication Critical patent/JPS5745430A/en
Publication of JPH0124253B2 publication Critical patent/JPH0124253B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
    • G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
    • G01N11/08—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/44—Resins; Plastics; Rubber; Leather
    • G01N33/442—Resins; Plastics

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To measure fluid characteristicc over a broad shearing strain rate region with good accuracy by providing plural pressure sensors to a slit die and controlling the extrusion speed of a plungr based on the pressure signals. CONSTITUTION:First, the displacement signal of a plunger 12 is obtained by a displacement gage 23 and a displacement gage amplifier 24, and the difference between said displacement signal and the signal of a sawtooth shape generated from a functional generator 22 is detected and amplified by a differential servoamplifier 25. An oil hydraulic servopump 26 is driven based on this differential signal to lower the plunger 12 at a constant speed by way of a hydraulic cylinder 27. The pressure of a sample of this time is detected with pressure sensors 14, 15. The pressure gradient, outlet pressure, and the pressure drops in the die inlet part of a slit die 13 are calculated by a microcomputer 20, and from said pressure gradient and flow rate, the steady fluid viscosity at the specific shearing strain rate is calculated and is printed by an input-output device 21.
JP12144580A 1980-09-02 1980-09-02 Slit die rheometer Granted JPS5745430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12144580A JPS5745430A (en) 1980-09-02 1980-09-02 Slit die rheometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12144580A JPS5745430A (en) 1980-09-02 1980-09-02 Slit die rheometer

Publications (2)

Publication Number Publication Date
JPS5745430A true JPS5745430A (en) 1982-03-15
JPH0124253B2 JPH0124253B2 (en) 1989-05-10

Family

ID=14811309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12144580A Granted JPS5745430A (en) 1980-09-02 1980-09-02 Slit die rheometer

Country Status (1)

Country Link
JP (1) JPS5745430A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6196441A (en) * 1984-10-17 1986-05-15 Idemitsu Kosan Co Ltd Apparent viscosity measuring instrument
JPH03154849A (en) * 1989-11-13 1991-07-02 Toyo Seiki Seisakusho:Kk Method and device for automatic test by capillograph device
EP0578785A1 (en) * 1991-04-04 1994-01-19 Dynisco, Inc. Capillary rheometer plunger pressure transducer and measurement technique
US5347851A (en) * 1991-04-04 1994-09-20 Dynisco, Inc. Capillary rheometer plunger pressure transducer and measurement technique
JP2007528501A (en) * 2004-03-11 2007-10-11 レオセンス，インコーポレイテッド A micro-slot viscometer with an integrated pressure sensor
JP2008286802A (en) * 2001-10-31 2008-11-27 Rheosense Inc Slit-type rheometer
US10436694B2 (en) 2014-04-11 2019-10-08 Rheosense, Inc. Viscometer and methods for using the same
US10451532B2 (en) 2010-04-26 2019-10-22 Rheosense, Inc. Portable viscometer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6196441A (en) * 1984-10-17 1986-05-15 Idemitsu Kosan Co Ltd Apparent viscosity measuring instrument
JPH03154849A (en) * 1989-11-13 1991-07-02 Toyo Seiki Seisakusho:Kk Method and device for automatic test by capillograph device
EP0578785A1 (en) * 1991-04-04 1994-01-19 Dynisco, Inc. Capillary rheometer plunger pressure transducer and measurement technique
EP0578785A4 (en) * 1991-04-04 1994-04-13 Dynisco, Inc.
US5347851A (en) * 1991-04-04 1994-09-20 Dynisco, Inc. Capillary rheometer plunger pressure transducer and measurement technique
US5417106A (en) * 1991-04-04 1995-05-23 Dynisco, Inc. Capillary rheometer plunger pressure transducer and measurement technique
JP2008286802A (en) * 2001-10-31 2008-11-27 Rheosense Inc Slit-type rheometer
JP2007528501A (en) * 2004-03-11 2007-10-11 レオセンス，インコーポレイテッド A micro-slot viscometer with an integrated pressure sensor
JP4825791B2 (en) * 2004-03-11 2011-11-30 レオセンス，インコーポレイテッド A micro-slot viscometer with an integrated pressure sensor
US10451532B2 (en) 2010-04-26 2019-10-22 Rheosense, Inc. Portable viscometer
US10436694B2 (en) 2014-04-11 2019-10-08 Rheosense, Inc. Viscometer and methods for using the same
US11162885B2 (en) 2014-04-11 2021-11-02 Rheosense, Inc. Viscometer and methods for using the same

Also Published As

Publication number Publication date
JPH0124253B2 (en) 1989-05-10

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