FR2416463A1 - Continuously measuring crosslinking degree in polymer - in which periodic lateral compression stresses produce longitudinal strains measured via motor generator - Google Patents

Continuously measuring crosslinking degree in polymer - in which periodic lateral compression stresses produce longitudinal strains measured via motor generator

Info

Publication number
FR2416463A1
FR2416463A1 FR7902623A FR7902623A FR2416463A1 FR 2416463 A1 FR2416463 A1 FR 2416463A1 FR 7902623 A FR7902623 A FR 7902623A FR 7902623 A FR7902623 A FR 7902623A FR 2416463 A1 FR2416463 A1 FR 2416463A1
Authority
FR
France
Prior art keywords
polymer
motor generator
measured via
continuously measuring
crosslinking degree
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.)
Withdrawn
Application number
FR7902623A
Other languages
French (fr)
Inventor
Lennart Skarud
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.)
Uponor Wirsbo AB
Original Assignee
Wirsbo Bruks AB
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 Wirsbo Bruks AB filed Critical Wirsbo Bruks AB
Publication of FR2416463A1 publication Critical patent/FR2416463A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
    • 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
    • G01N33/0078—Testing material properties on manufactured objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0023—Bending
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0032—Generation of the force using mechanical means
    • G01N2203/0037—Generation of the force using mechanical means involving a rotating movement, e.g. gearing, cam, eccentric, or centrifuge effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058—Kind of property studied
    • G01N2203/0092—Visco-elasticity, solidification, curing, cross-linking degree, vulcanisation or strength properties of semi-solid materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/022—Environment of the test
    • G01N2203/0248—Tests "on-line" during fabrication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0274—Tubular or ring-shaped specimens
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0676—Force, weight, load, energy, speed or acceleration
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Polymerisation Methods In General (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The degree of crosslinking per unit surface area of section of a polymer is measured by stressing the article with a force in a direction normal to that of its movement and measuring the amt. of reaction in the latter direction. The appts. for testing a polythene tube as it is continuously extruded, has a eccentric disc on a rotating shaft and with a ring and ball bearing. The other end of the shaft is that of a motor generator, with a flywheel and ratchet wheel between. Used for continuous determn. during prodn. of e.g. extrusions.
FR7902623A 1978-02-03 1979-02-01 Continuously measuring crosslinking degree in polymer - in which periodic lateral compression stresses produce longitudinal strains measured via motor generator Withdrawn FR2416463A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB451878 1978-02-03

Publications (1)

Publication Number Publication Date
FR2416463A1 true FR2416463A1 (en) 1979-08-31

Family

ID=9778714

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7902623A Withdrawn FR2416463A1 (en) 1978-02-03 1979-02-01 Continuously measuring crosslinking degree in polymer - in which periodic lateral compression stresses produce longitudinal strains measured via motor generator

Country Status (3)

Country Link
DE (1) DE2903879A1 (en)
FR (1) FR2416463A1 (en)
SE (1) SE7900930L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI64243C (en) * 1982-06-17 1983-10-10 Mauri Luukkala APPARATUS AND EQUIPMENT FOR THE MAINTENANCE OF PLASTIC MACHINES
DE102007015667A1 (en) 2007-03-31 2008-10-02 Inoex Gmbh Method for determining the degree of crosslinking of polymer products
DE102010009746A1 (en) * 2010-03-01 2011-09-01 SaarGummi technologies S.à.r.l. Method and device for producing a sealing strip by extrusion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE655821A (en) * 1963-11-15
US2243842A (en) * 1939-04-08 1941-06-03 Syncro Mach Co Device for indicating springiness of strands
US3457779A (en) * 1967-07-13 1969-07-29 Us Navy Cam plastometer
FR2225743A1 (en) * 1973-04-10 1974-11-08 Wirsbo Bruks Ab

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243842A (en) * 1939-04-08 1941-06-03 Syncro Mach Co Device for indicating springiness of strands
BE655821A (en) * 1963-11-15
US3457779A (en) * 1967-07-13 1969-07-29 Us Navy Cam plastometer
FR2225743A1 (en) * 1973-04-10 1974-11-08 Wirsbo Bruks Ab

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/68 *

Also Published As

Publication number Publication date
DE2903879A1 (en) 1979-08-09
SE7900930L (en) 1979-08-04

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Legal Events

Date Code Title Description
ST Notification of lapse