NL7500657A - Thermoplastic hose extrusion - with divergent cooling air nozzles in taper mould after cone-shaped extrusion - Google Patents

Thermoplastic hose extrusion - with divergent cooling air nozzles in taper mould after cone-shaped extrusion

Info

Publication number
NL7500657A
NL7500657A NL7500657A NL7500657A NL7500657A NL 7500657 A NL7500657 A NL 7500657A NL 7500657 A NL7500657 A NL 7500657A NL 7500657 A NL7500657 A NL 7500657A NL 7500657 A NL7500657 A NL 7500657A
Authority
NL
Netherlands
Prior art keywords
extrusion
degrees
cooling air
cone
mould
Prior art date
Application number
NL7500657A
Other languages
Dutch (nl)
Other versions
NL177989B (en
NL177989C (en
Original Assignee
Mobil Oil Corp
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
Priority claimed from US366388A external-priority patent/US3867083A/en
Priority to US05/497,784 priority Critical patent/US3959425A/en
Priority claimed from US05/497,784 external-priority patent/US3959425A/en
Priority to NLAANVRAGE7500657,A priority patent/NL177989C/en
Application filed by Mobil Oil Corp filed Critical Mobil Oil Corp
Priority to GB261175A priority patent/GB1469211A/en
Priority claimed from DE2502480A external-priority patent/DE2502480C2/en
Priority to AU77570/75A priority patent/AU487821B2/en
Priority to FR7502309A priority patent/FR2298423A1/en
Publication of NL7500657A publication Critical patent/NL7500657A/en
Publication of NL177989B publication Critical patent/NL177989B/en
Publication of NL177989C publication Critical patent/NL177989C/en
Application granted granted Critical

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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • 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

Landscapes

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

Abstract

Hoses are extruded from thermoplastic foil material through a divergent conical die with a central air inlet. A stack of cooling rings forms a divergent mould through which cooling air escapes through channels at an angle of 50 degrees-150 degrees (100 degrees-150 degrees) to the conical surface. After solidification, the hose is folded flat and extracted through pairs of rollers. This results in a greater uniformity of the wall thickness of the extruded hoses. The resin is kept clear of the mould as long as it is not solidified.
NLAANVRAGE7500657,A 1973-06-04 1975-01-20 DEVICE FOR FORMING AN EXTRUDED TUBULAR FOIL OF THERMOPLASTIC PLASTIC. NL177989C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US05/497,784 US3959425A (en) 1973-06-04 1974-08-14 Method for extruding tubular thermoplastic film
NLAANVRAGE7500657,A NL177989C (en) 1973-06-04 1975-01-20 DEVICE FOR FORMING AN EXTRUDED TUBULAR FOIL OF THERMOPLASTIC PLASTIC.
GB261175A GB1469211A (en) 1973-06-04 1975-01-21 Apparatus for forming extruded tubular thermoplastics film
AU77570/75A AU487821B2 (en) 1973-06-04 1975-01-23 Extrusion of tubular film with configuration of film bubble
FR7502309A FR2298423A1 (en) 1973-06-04 1975-01-24 Thermoplastic hose extrusion - with divergent cooling air nozzles in taper mould after cone-shaped extrusion

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US366388A US3867083A (en) 1973-06-04 1973-06-04 Shape imposition apparatus for the extrusion of tubular thermoplastic film
US05/497,784 US3959425A (en) 1973-06-04 1974-08-14 Method for extruding tubular thermoplastic film
NLAANVRAGE7500657,A NL177989C (en) 1973-06-04 1975-01-20 DEVICE FOR FORMING AN EXTRUDED TUBULAR FOIL OF THERMOPLASTIC PLASTIC.
DE2502480A DE2502480C2 (en) 1973-06-04 1975-01-22 Device for cooling blown blown film made of thermoplastic material

Publications (3)

Publication Number Publication Date
NL7500657A true NL7500657A (en) 1976-07-22
NL177989B NL177989B (en) 1985-08-01
NL177989C NL177989C (en) 1986-01-02

Family

ID=27431944

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7500657,A NL177989C (en) 1973-06-04 1975-01-20 DEVICE FOR FORMING AN EXTRUDED TUBULAR FOIL OF THERMOPLASTIC PLASTIC.

Country Status (1)

Country Link
NL (1) NL177989C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114474641A (en) * 2020-10-23 2022-05-13 中国石油化工股份有限公司 Film production device and biodegradable mulching film produced by same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114474641A (en) * 2020-10-23 2022-05-13 中国石油化工股份有限公司 Film production device and biodegradable mulching film produced by same

Also Published As

Publication number Publication date
NL177989B (en) 1985-08-01
NL177989C (en) 1986-01-02

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee