FR2321999A1 - Dispositif pour la fabrication de tuyaux en matiere thermoplastique, a faibles tensions internes - Google Patents

Dispositif pour la fabrication de tuyaux en matiere thermoplastique, a faibles tensions internes

Info

Publication number
FR2321999A1
FR2321999A1 FR7625521A FR7625521A FR2321999A1 FR 2321999 A1 FR2321999 A1 FR 2321999A1 FR 7625521 A FR7625521 A FR 7625521A FR 7625521 A FR7625521 A FR 7625521A FR 2321999 A1 FR2321999 A1 FR 2321999A1
Authority
FR
France
Prior art keywords
mandrel
pipe
mandrels
pipes
fitted
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
FR7625521A
Other languages
English (en)
French (fr)
Other versions
FR2321999B3 (enrdf_load_stackoverflow
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.)
Veba Oel AG
Original Assignee
Veba Oel AG
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 Veba Oel AG filed Critical Veba Oel AG
Publication of FR2321999A1 publication Critical patent/FR2321999A1/fr
Application granted granted Critical
Publication of FR2321999B3 publication Critical patent/FR2321999B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
FR7625521A 1975-08-23 1976-08-23 Dispositif pour la fabrication de tuyaux en matiere thermoplastique, a faibles tensions internes Granted FR2321999A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752537588 DE2537588A1 (de) 1975-08-23 1975-08-23 Vorrichtung zur herstellung spannungsarmer rohre aus thermoplastischem kunststoff

Publications (2)

Publication Number Publication Date
FR2321999A1 true FR2321999A1 (fr) 1977-03-25
FR2321999B3 FR2321999B3 (enrdf_load_stackoverflow) 1979-05-18

Family

ID=5954675

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625521A Granted FR2321999A1 (fr) 1975-08-23 1976-08-23 Dispositif pour la fabrication de tuyaux en matiere thermoplastique, a faibles tensions internes

Country Status (10)

Country Link
BE (1) BE845423R (enrdf_load_stackoverflow)
DE (1) DE2537588A1 (enrdf_load_stackoverflow)
DK (1) DK378076A (enrdf_load_stackoverflow)
FI (1) FI762389A7 (enrdf_load_stackoverflow)
FR (1) FR2321999A1 (enrdf_load_stackoverflow)
IT (1) IT1076936B (enrdf_load_stackoverflow)
LU (1) LU75639A1 (enrdf_load_stackoverflow)
NL (1) NL7609277A (enrdf_load_stackoverflow)
NO (1) NO762883L (enrdf_load_stackoverflow)
SE (1) SE7609280L (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004022309A1 (en) * 2002-09-09 2004-03-18 Lupke Manfred Arno Alfred Pipe mold apparatus with contact and contactless air cooling of plastic in a mold tunnel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004022309A1 (en) * 2002-09-09 2004-03-18 Lupke Manfred Arno Alfred Pipe mold apparatus with contact and contactless air cooling of plastic in a mold tunnel

Also Published As

Publication number Publication date
SE7609280L (sv) 1977-02-24
FR2321999B3 (enrdf_load_stackoverflow) 1979-05-18
FI762389A7 (enrdf_load_stackoverflow) 1977-02-24
DK378076A (da) 1977-02-24
IT1076936B (it) 1985-04-27
LU75639A1 (enrdf_load_stackoverflow) 1977-03-31
NL7609277A (nl) 1977-02-25
BE845423R (fr) 1976-12-16
DE2537588A1 (de) 1977-02-24
NO762883L (enrdf_load_stackoverflow) 1977-02-24

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Legal Events

Date Code Title Description
ST Notification of lapse