GB1389922A - Process control - Google Patents

Process control

Info

Publication number
GB1389922A
GB1389922A GB2852172A GB2852172A GB1389922A GB 1389922 A GB1389922 A GB 1389922A GB 2852172 A GB2852172 A GB 2852172A GB 2852172 A GB2852172 A GB 2852172A GB 1389922 A GB1389922 A GB 1389922A
Authority
GB
United Kingdom
Prior art keywords
size
extruder
variables
dienes
ovens
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.)
Expired
Application number
GB2852172A
Other languages
English (en)
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1389922A publication Critical patent/GB1389922A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D5/00—Control of dimensions of material
    • G05D5/02—Control of dimensions of material of thickness, e.g. of rolled material
    • G05D5/03—Control of dimensions of material of thickness, e.g. of rolled material characterised by the use of electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/60—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92114—Dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92428—Calibration, after-treatment, or cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
GB2852172A 1971-06-23 1972-06-19 Process control Expired GB1389922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15580571A 1971-06-23 1971-06-23

Publications (1)

Publication Number Publication Date
GB1389922A true GB1389922A (en) 1975-04-09

Family

ID=22556867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2852172A Expired GB1389922A (en) 1971-06-23 1972-06-19 Process control

Country Status (6)

Country Link
AU (1) AU4207572A (enExample)
CA (1) CA997035A (enExample)
FR (1) FR2143072B1 (enExample)
GB (1) GB1389922A (enExample)
IT (1) IT959909B (enExample)
SE (1) SE389472B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT383079B (de) * 1984-06-30 1987-05-11 Berstorff Gmbh Masch Hermann Strangpresse zum herstellen von laufstreifen fuer autoreifen od.dgl. profilen oder bahnen
GB2333989A (en) * 1998-02-06 1999-08-11 Athlone Extrusions Dev Ltd Testing extruded plastics
CN103175832A (zh) * 2011-12-22 2013-06-26 罗姆及哈斯公司 测量聚合物泡沫体膨胀率的方法以及用于其中的仪器
CN119328942A (zh) * 2024-12-02 2025-01-21 常州绿通塑晟科技有限公司 一种挤出法环保型可发性聚苯乙烯生产工艺

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4751651A (en) * 1983-08-16 1988-06-14 Phillips Petroleum Company Shaping of dies
DE3423491A1 (de) * 1984-06-05 1985-12-05 Kunststoff-Verarbeitung GmbH Dirk A. Brügmann, 5800 Hagen Vorrichtung zur ermittlung einer staubildung an einer strangpresse
EP0218850A1 (de) * 1985-09-25 1987-04-22 Kunststoff-Verarbeitungs GmbH Dirk A. Brügmann Verfahren zur Ermittlung einer proportionalen Veränderung eines Profils
DE3541680A1 (de) * 1985-11-26 1987-05-27 Bernd Becker Vorrichtung zur steuerung einer anlage fuer die herstellung von strangprofilen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT383079B (de) * 1984-06-30 1987-05-11 Berstorff Gmbh Masch Hermann Strangpresse zum herstellen von laufstreifen fuer autoreifen od.dgl. profilen oder bahnen
GB2333989A (en) * 1998-02-06 1999-08-11 Athlone Extrusions Dev Ltd Testing extruded plastics
GB2333989B (en) * 1998-02-06 2002-12-31 Athlone Extrusions Dev Ltd Production of plastics sheet material
CN103175832A (zh) * 2011-12-22 2013-06-26 罗姆及哈斯公司 测量聚合物泡沫体膨胀率的方法以及用于其中的仪器
WO2013095876A1 (en) * 2011-12-22 2013-06-27 Rohm & Haas Company Method for measuring polymer foam expansion and apparatus for use therein
JP2013136751A (ja) * 2011-12-22 2013-07-11 Rohm & Haas Co ポリマーフォームの膨張を測定する方法および前記方法において使用するための装置
CN103175832B (zh) * 2011-12-22 2017-09-01 罗姆及哈斯公司 测量聚合物泡沫体膨胀率的方法以及用于其中的仪器
CN119328942A (zh) * 2024-12-02 2025-01-21 常州绿通塑晟科技有限公司 一种挤出法环保型可发性聚苯乙烯生产工艺

Also Published As

Publication number Publication date
FR2143072B1 (enExample) 1977-12-23
FR2143072A1 (enExample) 1973-02-02
SE389472B (sv) 1976-11-08
AU4207572A (en) 1973-11-15
CA997035A (en) 1976-09-14
IT959909B (it) 1973-11-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee