GB1270865A - Improvement in process and apparatus for extruding thermoplastic tubing and tubular films - Google Patents

Improvement in process and apparatus for extruding thermoplastic tubing and tubular films

Info

Publication number
GB1270865A
GB1270865A GB43079/69A GB4307969A GB1270865A GB 1270865 A GB1270865 A GB 1270865A GB 43079/69 A GB43079/69 A GB 43079/69A GB 4307969 A GB4307969 A GB 4307969A GB 1270865 A GB1270865 A GB 1270865A
Authority
GB
United Kingdom
Prior art keywords
mandrel
helium
die
zone
film
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
GB43079/69A
Other languages
English (en)
Inventor
John Bennett Lyon
Hung Han Yang
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1270865A publication Critical patent/GB1270865A/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
    • B29C48/902—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
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
GB43079/69A 1968-08-30 1969-08-29 Improvement in process and apparatus for extruding thermoplastic tubing and tubular films Expired GB1270865A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75647768A 1968-08-30 1968-08-30

Publications (1)

Publication Number Publication Date
GB1270865A true GB1270865A (en) 1972-04-19

Family

ID=25043660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43079/69A Expired GB1270865A (en) 1968-08-30 1969-08-29 Improvement in process and apparatus for extruding thermoplastic tubing and tubular films

Country Status (4)

Country Link
BE (1) BE738194A (enrdf_load_stackoverflow)
DE (1) DE1944045A1 (enrdf_load_stackoverflow)
FR (1) FR2016662A1 (enrdf_load_stackoverflow)
GB (1) GB1270865A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015051774A1 (de) * 2013-10-13 2015-04-16 Reifenhäuser GmbH & Co. KG Maschinenfabrik Innenkühlkörper für eine blasfolienanlage, blasfolienanlage mit einem solchen innenkörper sowie verfahren zum betreiben einer solchen blasfolienanlage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008022A (en) * 1975-02-28 1977-02-15 General Electric Company Thermoplastic tube seal and cooling means
SE434930B (sv) * 1982-04-29 1984-08-27 Aga Ab Forfaringssett och anordning for att invendigt kyla extruderade rorformiga foremal med hjelp av flytande kveve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015051774A1 (de) * 2013-10-13 2015-04-16 Reifenhäuser GmbH & Co. KG Maschinenfabrik Innenkühlkörper für eine blasfolienanlage, blasfolienanlage mit einem solchen innenkörper sowie verfahren zum betreiben einer solchen blasfolienanlage
CN105636760A (zh) * 2013-10-13 2016-06-01 莱芬豪舍机械制造两合公司 用于吹塑薄膜设备的内冷却体、具有这种内冷却体的吹塑薄膜设备以及用于运行这种吹塑薄膜设备的方法

Also Published As

Publication number Publication date
BE738194A (enrdf_load_stackoverflow) 1970-03-02
FR2016662A1 (enrdf_load_stackoverflow) 1970-05-08
DE1944045A1 (de) 1970-03-05

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