DE2525561C2 - Verfahren zur kontinuierlichen Herstellung wärmeisolierter Leitungsrohre - Google Patents

Verfahren zur kontinuierlichen Herstellung wärmeisolierter Leitungsrohre

Info

Publication number
DE2525561C2
DE2525561C2 DE2525561A DE2525561A DE2525561C2 DE 2525561 C2 DE2525561 C2 DE 2525561C2 DE 2525561 A DE2525561 A DE 2525561A DE 2525561 A DE2525561 A DE 2525561A DE 2525561 C2 DE2525561 C2 DE 2525561C2
Authority
DE
Germany
Prior art keywords
crosslinking
crosslinking agent
agent
blowing agent
heat
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
DE2525561A
Other languages
German (de)
English (en)
Other versions
DE2525561A1 (de
Inventor
Bernd 3001 Vinnhorst Eilhardt
Diethelm 3001 Schulenburg Mutzke
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE2525561A priority Critical patent/DE2525561C2/de
Priority to CH1255375A priority patent/CH589252A5/xx
Priority to IT48348/76A priority patent/IT1057271B/it
Priority to AT186876A priority patent/AT357749B/de
Priority to JP51030016A priority patent/JPS51149376A/ja
Priority to DK141576A priority patent/DK147372C/da
Priority to FR7612458A priority patent/FR2313198A2/fr
Priority to GB22078/76A priority patent/GB1480324A/en
Priority to NL7606018A priority patent/NL7606018A/xx
Priority to BE167652A priority patent/BE842625R/xx
Priority to SE7606344A priority patent/SE420690B/xx
Publication of DE2525561A1 publication Critical patent/DE2525561A1/de
Application granted granted Critical
Publication of DE2525561C2 publication Critical patent/DE2525561C2/de
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeves; consisting of two half sleeves; comprising more than two segments
    • 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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • 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
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • 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
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2301/00—Use of unspecified macromolecular compounds as reinforcement
    • B29K2301/10—Thermosetting resins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Molding Of Porous Articles (AREA)
DE2525561A 1975-06-07 1975-06-07 Verfahren zur kontinuierlichen Herstellung wärmeisolierter Leitungsrohre Expired DE2525561C2 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DE2525561A DE2525561C2 (de) 1975-06-07 1975-06-07 Verfahren zur kontinuierlichen Herstellung wärmeisolierter Leitungsrohre
CH1255375A CH589252A5 (enrdf_load_html_response) 1975-06-07 1975-09-26
IT48348/76A IT1057271B (it) 1975-06-07 1976-03-01 Procedimento per la produzione continua di condutture termicamente isolate
AT186876A AT357749B (de) 1975-06-07 1976-03-15 Verfahren zur kontinuierlichen herstellung waermeisolierter leitungsrohre
JP51030016A JPS51149376A (en) 1975-06-07 1976-03-22 Method of producing continuously heat insulating conductor tube
DK141576A DK147372C (da) 1975-06-07 1976-03-30 Fremgangsmaade ved kontinuerlig fremstilling af varmeisolerede ledningsroer
FR7612458A FR2313198A2 (fr) 1975-06-07 1976-04-27 Procede pour la fabrication en continu de conduits calorifuges
GB22078/76A GB1480324A (en) 1975-06-07 1976-05-27 Method of continuously producing thermally insulated piping and piping produced thereby
NL7606018A NL7606018A (nl) 1975-06-07 1976-06-03 Werkwijze voor het continu vervaardigen van warmtegeisoleerde leidingen.
BE167652A BE842625R (fr) 1975-06-07 1976-06-04 Procede de fabrication continue de tuyaux de canalisation calorifuges
SE7606344A SE420690B (sv) 1975-06-07 1976-06-04 Sett att kontinuerligt framstella vermeisolerande ledningsror

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2525561A DE2525561C2 (de) 1975-06-07 1975-06-07 Verfahren zur kontinuierlichen Herstellung wärmeisolierter Leitungsrohre

Publications (2)

Publication Number Publication Date
DE2525561A1 DE2525561A1 (de) 1976-12-23
DE2525561C2 true DE2525561C2 (de) 1985-11-07

Family

ID=5948600

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2525561A Expired DE2525561C2 (de) 1975-06-07 1975-06-07 Verfahren zur kontinuierlichen Herstellung wärmeisolierter Leitungsrohre

Country Status (11)

Country Link
JP (1) JPS51149376A (enrdf_load_html_response)
AT (1) AT357749B (enrdf_load_html_response)
BE (1) BE842625R (enrdf_load_html_response)
CH (1) CH589252A5 (enrdf_load_html_response)
DE (1) DE2525561C2 (enrdf_load_html_response)
DK (1) DK147372C (enrdf_load_html_response)
FR (1) FR2313198A2 (enrdf_load_html_response)
GB (1) GB1480324A (enrdf_load_html_response)
IT (1) IT1057271B (enrdf_load_html_response)
NL (1) NL7606018A (enrdf_load_html_response)
SE (1) SE420690B (enrdf_load_html_response)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628883A1 (de) * 1976-06-26 1978-01-05 Kabel Metallwerke Ghh Verfahren zum herstellen einer umhuellung aus aufgeschaeumtem kunststoff
DE2806560B2 (de) * 1978-02-16 1981-05-07 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Verfahren zur kontinuierlichen Herstellung wärmeisolierter Leitungsrohre
NL8005255A (nl) * 1980-09-19 1982-04-16 Wavin Bv Kunststofbuisdeel voorzien van een kunststofschuimisolatielaag.
GB9025923D0 (en) * 1990-11-28 1991-01-09 Textilver Sa Improvements in and relating to tubing
EP1029615A1 (en) * 1991-03-29 2000-08-23 Asahi Tec Corporation Method of preparing disappearing model
EP3216579A1 (en) * 2016-03-11 2017-09-13 Halcor S.A. Crosslinked tubular foam
WO2018194835A1 (en) * 2017-04-18 2018-10-25 R & D Plastics Of Hickory, Ltd. Ring dam and method for manufacturing a ring dam

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1504355A1 (de) * 1962-10-15 1969-09-25 Hercules Inc Formgegenstaende aus Polypropylenschaumstoffen mit Zellstruktur und Verfahren zur Herstellung derselben
DE1629367A1 (de) * 1966-08-11 1971-02-04 Dynamit Nobel Ag Verfahren zur kontinuierlichen Herstellung von vernetzten Polyolefin-Schaumstoffen
DE1629455A1 (de) * 1966-09-06 1971-01-28 Kabel Metallwerke Ghh Verfahren zum Vulkanisieren oder Vernetzen von thermoplastischen Isolierstoffschichten

Also Published As

Publication number Publication date
ATA186876A (de) 1979-12-15
DK141576A (da) 1976-12-08
AT357749B (de) 1980-07-25
SE7606344L (sv) 1976-12-08
NL7606018A (nl) 1976-12-09
CH589252A5 (enrdf_load_html_response) 1977-06-30
IT1057271B (it) 1982-03-10
GB1480324A (en) 1977-07-20
FR2313198B2 (enrdf_load_html_response) 1980-04-30
DK147372B (da) 1984-07-09
DK147372C (da) 1985-01-07
BE842625R (fr) 1976-12-06
SE420690B (sv) 1981-10-26
JPS51149376A (en) 1976-12-22
DE2525561A1 (de) 1976-12-23
FR2313198A2 (fr) 1976-12-31

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