IT1076936B - Dispositivo per fabbricare tubi di materia artificiale termoplastica con modiche tensioni interne - Google Patents

Dispositivo per fabbricare tubi di materia artificiale termoplastica con modiche tensioni interne

Info

Publication number
IT1076936B
IT1076936B IT26396/76A IT2639676A IT1076936B IT 1076936 B IT1076936 B IT 1076936B IT 26396/76 A IT26396/76 A IT 26396/76A IT 2639676 A IT2639676 A IT 2639676A IT 1076936 B IT1076936 B IT 1076936B
Authority
IT
Italy
Prior art keywords
internal voltages
modern internal
manufacturing thermoplastic
thermoplastic artificial
artificial tubes
Prior art date
Application number
IT26396/76A
Other languages
English (en)
Italian (it)
Original Assignee
Veba Chemie 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 Chemie Ag filed Critical Veba Chemie Ag
Application granted granted Critical
Publication of IT1076936B publication Critical patent/IT1076936B/it

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)
IT26396/76A 1975-08-23 1976-08-20 Dispositivo per fabbricare tubi di materia artificiale termoplastica con modiche tensioni interne IT1076936B (it)

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 (1)

Publication Number Publication Date
IT1076936B true IT1076936B (it) 1985-04-27

Family

ID=5954675

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26396/76A IT1076936B (it) 1975-08-23 1976-08-20 Dispositivo per fabbricare tubi di materia artificiale termoplastica con modiche tensioni interne

Country Status (10)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040047932A1 (en) * 2002-09-09 2004-03-11 Lupke Manfred A. A. Pipe mold apparatus with contact and air cooling of plastic in a mold tunnel

Also Published As

Publication number Publication date
FR2321999A1 (fr) 1977-03-25
NL7609277A (nl) 1977-02-25
LU75639A1 (OSRAM) 1977-03-31
FR2321999B3 (OSRAM) 1979-05-18
BE845423R (fr) 1976-12-16
FI762389A7 (OSRAM) 1977-02-24
DE2537588A1 (de) 1977-02-24
DK378076A (da) 1977-02-24
SE7609280L (sv) 1977-02-24
NO762883L (OSRAM) 1977-02-24

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