DE1479617B2 - Verfahren zum herstellen von stranggepressten, dimensionsmaessig waermeinstabilen rohren - Google Patents

Verfahren zum herstellen von stranggepressten, dimensionsmaessig waermeinstabilen rohren

Info

Publication number
DE1479617B2
DE1479617B2 DE19631479617 DE1479617A DE1479617B2 DE 1479617 B2 DE1479617 B2 DE 1479617B2 DE 19631479617 DE19631479617 DE 19631479617 DE 1479617 A DE1479617 A DE 1479617A DE 1479617 B2 DE1479617 B2 DE 1479617B2
Authority
DE
Germany
Prior art keywords
pipe
temperature
crystalline
pressure
polymers
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Withdrawn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
DE19631479617
Other languages
German (de)
English (en)
Other versions
DE1479617A1 (de
Inventor
Richard Wayne Redwood City Cook Paul Maxwell Atherton Cahf Muchmore (V St A)
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.)
Raychem Corp
Original Assignee
Raychem Corp
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
Priority claimed from US43230A external-priority patent/US3086242A/en
Application filed by Raychem Corp filed Critical Raychem Corp
Publication of DE1479617A1 publication Critical patent/DE1479617A1/de
Publication of DE1479617B2 publication Critical patent/DE1479617B2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06Making preforms having internal stresses, e.g. plastic memory
    • B29C61/08Making preforms having internal stresses, e.g. plastic memory by stretching tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0018Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
DE19631479617 1960-07-15 1963-03-07 Verfahren zum herstellen von stranggepressten, dimensionsmaessig waermeinstabilen rohren Withdrawn DE1479617B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43230A US3086242A (en) 1960-07-15 1960-07-15 Process and apparatus for producing materials having plastic memory
DER0034637 1963-03-07

Publications (2)

Publication Number Publication Date
DE1479617A1 DE1479617A1 (de) 1969-05-08
DE1479617B2 true DE1479617B2 (de) 1973-06-20

Family

ID=25991642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19631479617 Withdrawn DE1479617B2 (de) 1960-07-15 1963-03-07 Verfahren zum herstellen von stranggepressten, dimensionsmaessig waermeinstabilen rohren

Country Status (2)

Country Link
DE (1) DE1479617B2 (enrdf_load_stackoverflow)
NL (1) NL285474A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240454A1 (de) * 1982-11-02 1984-05-03 kabelmetal electro GmbH, 3000 Hannover Verfahren zur kontinuierlichen herstellung von schrumpfartikeln

Also Published As

Publication number Publication date
DE1479617A1 (de) 1969-05-08
NL285474A (enrdf_load_stackoverflow) 1900-01-01

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