BE751431A - Blow moulding folded thermoplastic sheet to - form hollow containers - Google Patents

Blow moulding folded thermoplastic sheet to - form hollow containers

Info

Publication number
BE751431A
BE751431A BE751431DA BE751431A BE 751431 A BE751431 A BE 751431A BE 751431D A BE751431D A BE 751431DA BE 751431 A BE751431 A BE 751431A
Authority
BE
Belgium
Prior art keywords
thermoplastic sheet
folded
blow moulding
form hollow
sheet
Prior art date
Application number
Other languages
French (fr)
Original Assignee
Financ Applic Elec
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 Financ Applic Elec filed Critical Financ Applic Elec
Publication of BE751431A publication Critical patent/BE751431A/en

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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06905—Using combined techniques for making the preform
    • B29C49/0691—Using combined techniques for making the preform using sheet like material, e.g. sheet blow-moulding from joined sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Preheated thermoplastic sheet is folded and gripped edge to edge to trap a gas needle before enclosing the folded sheet in a hinged split mould defining a cavity suitable for forming e.g. a protective casing for a lamp or light fitting. Offers symmetrical deformation of the feedstock sheet during loading and blowing and low material trim losses for a shape involving a longitudinal seam and an open end.
BE751431D 1970-06-03 1970-06-03 Blow moulding folded thermoplastic sheet to - form hollow containers BE751431A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE751431 1970-06-03

Publications (1)

Publication Number Publication Date
BE751431A true BE751431A (en) 1970-11-16

Family

ID=3856585

Family Applications (1)

Application Number Title Priority Date Filing Date
BE751431D BE751431A (en) 1970-06-03 1970-06-03 Blow moulding folded thermoplastic sheet to - form hollow containers

Country Status (1)

Country Link
BE (1) BE751431A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029152A1 (en) * 1979-11-15 1981-05-27 Johann König & Sohn Caravan window or the like and process and apparatus for making it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029152A1 (en) * 1979-11-15 1981-05-27 Johann König & Sohn Caravan window or the like and process and apparatus for making it

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