GB1081935A - Process for preparing plastics pipes, such as hard polyvinyl chloride pipes adapted to transport fluid and plastics pipes obtained by this process - Google Patents

Process for preparing plastics pipes, such as hard polyvinyl chloride pipes adapted to transport fluid and plastics pipes obtained by this process

Info

Publication number
GB1081935A
GB1081935A GB38149/64A GB3814964A GB1081935A GB 1081935 A GB1081935 A GB 1081935A GB 38149/64 A GB38149/64 A GB 38149/64A GB 3814964 A GB3814964 A GB 3814964A GB 1081935 A GB1081935 A GB 1081935A
Authority
GB
United Kingdom
Prior art keywords
pipe
pipes
tank
polyvinyl chloride
plastics
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
GB38149/64A
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.)
Wavin BV
Wavin NV
Original Assignee
Wavin BV
Wavin NV
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 Wavin BV, Wavin NV filed Critical Wavin BV
Publication of GB1081935A publication Critical patent/GB1081935A/en
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
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
    • 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
    • B29C48/903—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 externally
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,081,935. Making plastics pipes. WAVIN N.V. Sept. 18. 1964 [Sept. 19, 1963], No. 38149/64. Heading B5A. In a process for making a pipe of thermoplastics material, e.g. of polyvinyl chloride, a pipe is extruded and then annealed at temperatures between 70‹ and 160‹ C. for at least 15 minutes, and the annealed pipe cooled to a temperature in the region of ambient temperature, the composition of the thermoplastics material being so selected that the pipe so produced has a benzene absorption below 20%. A pipe is extruded from an extruder 1 at a temperature of 160‹ to 180‹ C. and, after passing through a calibration box 3, is sprayed with cooling water from a tank 5 and then immersed in a tank 6 of water at 100‹ C. for 15 minutes to 1 hour. The pipe is then transferred to a tank 9 containing a cooling spiral 10 connected to a refrigerator 11, and is removed therefrom after a predetermined period when it is at approximately ambient temperature. The tanks 5, 6 may be omitted, the extruded pipe being passed directly from the extruder 1 to the tank 9.
GB38149/64A 1963-09-19 1964-09-18 Process for preparing plastics pipes, such as hard polyvinyl chloride pipes adapted to transport fluid and plastics pipes obtained by this process Expired GB1081935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL298140 1963-09-19

Publications (1)

Publication Number Publication Date
GB1081935A true GB1081935A (en) 1967-09-06

Family

ID=19755062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38149/64A Expired GB1081935A (en) 1963-09-19 1964-09-18 Process for preparing plastics pipes, such as hard polyvinyl chloride pipes adapted to transport fluid and plastics pipes obtained by this process

Country Status (6)

Country Link
AT (1) AT292291B (en)
BE (1) BE652970A (en)
DE (1) DE1504413B2 (en)
DK (1) DK118847B (en)
GB (1) GB1081935A (en)
NL (1) NL298140A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415524A (en) * 1977-04-06 1979-02-05 Wavin Bv Plastic tube
EP1201399A1 (en) * 2000-10-18 2002-05-02 COSTRUZIONI MECCANICHE LUIGI BANDERA S.p.A. Gauge device for plastic pipes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415524A (en) * 1977-04-06 1979-02-05 Wavin Bv Plastic tube
JPS5640012B2 (en) * 1977-04-06 1981-09-17
DK151858B (en) * 1977-04-06 1988-01-11 Wavin Bv PROCEDURE FOR MANUFACTURING A PIPE OF THERMOPLASTIC MATERIAL
EP1201399A1 (en) * 2000-10-18 2002-05-02 COSTRUZIONI MECCANICHE LUIGI BANDERA S.p.A. Gauge device for plastic pipes

Also Published As

Publication number Publication date
AT292291B (en) 1971-08-25
DE1504413B2 (en) 1971-12-16
DK118847B (en) 1970-10-12
BE652970A (en) 1964-12-31
NL298140A (en) 1900-01-01
DE1504413A1 (en) 1970-02-26

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