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GB880391A - Improvements in or relating to extrusion - Google Patents

Improvements in or relating to extrusion

Info

Publication number
GB880391A
GB880391A GB19856/59A GB1985659A GB880391A GB 880391 A GB880391 A GB 880391A GB 19856/59 A GB19856/59 A GB 19856/59A GB 1985659 A GB1985659 A GB 1985659A GB 880391 A GB880391 A GB 880391A
Authority
GB
United Kingdom
Prior art keywords
extrusion
cooling
sizing
june
piping
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
GB19856/59A
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 GB19856/59A priority Critical patent/GB880391A/en
Priority to FR829606A priority patent/FR1259717A/en
Priority to DES68887A priority patent/DE1175421B/en
Publication of GB880391A publication Critical patent/GB880391A/en
Expired 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
    • B29C48/901—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
    • B29C48/03—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
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
    • 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
    • B29C48/904—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 using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication
    • 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
    • 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
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • 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
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material

Landscapes

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

Abstract

880,391. Making tubular thermoplastic articles. SHAW, H. June 10, 1960 [June 10, 1959], No. 19856/59. Class 87(2). An extruded tubular thermoplastic article, immediately on leaving the extrusion die 1, passes in contact with the surface 14 of a cooling member 3, which cools its surface to below the softening temperature of the thermoplastic, and then passes over the surface 15 of a sizing member 4 against which it is sucked by the application of a vacuum, the surface 15 being maintained at a temperature which will not substantially cool the extrusion further. Further cooling and sizing members, e..g cooling members 5, 6 and sizing member 7, may follow. The extrusion is finally cooled to, or near to, ambient temperature by means of a water bath (not shown) or by means of jets 24 of air or water. The surfaces 14, 15, 18, 21 are preferably coated with, or made from, a material having a low coefficient of friction such as polytetrafluoroethylene. The method is particularly applicable to polyethylene piping which is subject to internal stresses that reduce its bursting strength when cooled and stretched simultaneously. The invention is not limited to the extrusion of piping, however, and may be applied to other extrusions, such as channels and troughs. Specification 780,900 is referred to.
GB19856/59A 1959-06-10 1959-06-10 Improvements in or relating to extrusion Expired GB880391A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB19856/59A GB880391A (en) 1959-06-10 1959-06-10 Improvements in or relating to extrusion
FR829606A FR1259717A (en) 1959-06-10 1960-06-10 Method and apparatus for the extrusion of thermoplastics
DES68887A DE1175421B (en) 1959-06-10 1960-06-10 Method and device for manufacturing hollow profiles from thermoplastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19856/59A GB880391A (en) 1959-06-10 1959-06-10 Improvements in or relating to extrusion

Publications (1)

Publication Number Publication Date
GB880391A true GB880391A (en) 1961-10-18

Family

ID=26186346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19856/59A Expired GB880391A (en) 1959-06-10 1959-06-10 Improvements in or relating to extrusion

Country Status (3)

Country Link
DE (1) DE1175421B (en)
FR (1) FR1259717A (en)
GB (1) GB880391A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169272A (en) * 1962-10-30 1965-02-16 Continental Oil Co Apparatus for making plastic tubing
US3189941A (en) * 1962-07-19 1965-06-22 Reifenhauser K G Apparatus for continuous extrusion of composite bodies of plastic material
US3248463A (en) * 1962-02-15 1966-04-26 Phillips Petroleum Co Continuous production of biaxially oriented crystalline thermoplastic film
US3274314A (en) * 1963-06-13 1966-09-20 Phillips Petroleum Co Thermoplastic film production
US3378887A (en) * 1963-09-04 1968-04-23 John C. Reib Vacuum sizer
US9937517B2 (en) 2010-10-25 2018-04-10 Battenfeld-Cincinnati Germany Gmbh Device for guiding and/or forming an extruded strand of plastic and process for coating a flat material
CN110549581A (en) * 2019-10-15 2019-12-10 湖北安信塑料模具有限公司 Rapid cooling co-extrusion PE wood-plastic mold

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2504190C3 (en) * 1975-02-01 1984-08-16 Dynamit Nobel Ag, 5210 Troisdorf Method and device for calibrating an extruded profile made of thermoplastic material
FR2580542B1 (en) * 1985-04-23 1987-07-17 Atochem PROCESS FOR EXTRUDING EXPANDABLE PLASTICS
CA2135267C (en) * 1994-02-10 2008-02-26 Sadao Nishibori Synthetic wood meal, method and apparatus for manufacturing the same; synthetic wood board including the synthetic wood meal, method and apparatus of extrusion molding therefor
JP3658714B2 (en) * 1996-02-09 2005-06-08 アイン興産株式会社 Pattern formation method for woody synthetic board
DE102009016100A1 (en) * 2009-04-03 2010-10-07 Egeplast Werner Strumann Gmbh & Co. Kg Calibrating device for plastic pipe extruding system, has calibrating tools formed as hollow body, where tools have slots in area of sliding surfaces that are attached to pipe circumference, and slots are connected with cavity in body

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH263730A (en) * 1946-02-08 1949-09-15 Du Pont Method and device for the production of porous bodies.
US2519375A (en) * 1946-02-16 1950-08-22 Union Carbide & Carbon Corp Method and apparatus for molding tubing
DE932866C (en) * 1952-02-29 1955-09-12 Basf Ag Device for the continuous production of calibrated profiles
DE1016009B (en) * 1954-07-15 1957-09-19 Anton Reifenhaeuser Fa Process for the extrusion of hollow bodies made of thermoplastic material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248463A (en) * 1962-02-15 1966-04-26 Phillips Petroleum Co Continuous production of biaxially oriented crystalline thermoplastic film
US3189941A (en) * 1962-07-19 1965-06-22 Reifenhauser K G Apparatus for continuous extrusion of composite bodies of plastic material
US3169272A (en) * 1962-10-30 1965-02-16 Continental Oil Co Apparatus for making plastic tubing
US3274314A (en) * 1963-06-13 1966-09-20 Phillips Petroleum Co Thermoplastic film production
US3378887A (en) * 1963-09-04 1968-04-23 John C. Reib Vacuum sizer
US9937517B2 (en) 2010-10-25 2018-04-10 Battenfeld-Cincinnati Germany Gmbh Device for guiding and/or forming an extruded strand of plastic and process for coating a flat material
CN110549581A (en) * 2019-10-15 2019-12-10 湖北安信塑料模具有限公司 Rapid cooling co-extrusion PE wood-plastic mold

Also Published As

Publication number Publication date
DE1175421B (en) 1964-08-06
FR1259717A (en) 1961-04-28

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