FR2051160A5 - Vacuum mould for forming tubes from therm - oplastic sheets - Google Patents

Vacuum mould for forming tubes from therm - oplastic sheets

Info

Publication number
FR2051160A5
FR2051160A5 FR7021669A FR7021669A FR2051160A5 FR 2051160 A5 FR2051160 A5 FR 2051160A5 FR 7021669 A FR7021669 A FR 7021669A FR 7021669 A FR7021669 A FR 7021669A FR 2051160 A5 FR2051160 A5 FR 2051160A5
Authority
FR
France
Prior art keywords
mould
oplastic
therm
sheets
forming tubes
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
FR7021669A
Other languages
French (fr)
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of FR2051160A5 publication Critical patent/FR2051160A5/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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/44—Removing or ejecting moulded articles
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/34—Moulds for undercut articles

Landscapes

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

Abstract

Reentrant portions of the mould are formed of core pieces projecting into the mould, composed of an elastomer dimensionally stable at the moulding pressure in the thermoplastic zone of the sheet and flexing elastically under the stripping pressure at the stripping temp. The core pieces are fixed to the mould outside a supporting rim bordering the wall of the mould, of which the width is 0.8-2.5 times that of the projection of the core piece into the mould.
FR7021669A 1969-06-12 1970-06-12 Vacuum mould for forming tubes from therm - oplastic sheets Expired FR2051160A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691929878 DE1929878A1 (en) 1969-06-12 1969-06-12 Drawing form with core pieces for the production of shell-shaped objects from thermoplastics

Publications (1)

Publication Number Publication Date
FR2051160A5 true FR2051160A5 (en) 1971-04-02

Family

ID=5736806

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7021669A Expired FR2051160A5 (en) 1969-06-12 1970-06-12 Vacuum mould for forming tubes from therm - oplastic sheets

Country Status (6)

Country Link
BE (1) BE751910A (en)
CH (1) CH507078A (en)
DE (1) DE1929878A1 (en)
FR (1) FR2051160A5 (en)
LU (1) LU61107A1 (en)
NL (1) NL7008054A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3524122A1 (en) * 1985-07-05 1987-01-08 Heinz Georg Baus DEEP-DRAWING PART, IN PARTICULAR SHOWER CUP
DE4238943A1 (en) * 1992-07-23 1994-01-27 Durotherm Kunststoffverarbeitu Process for vacuum forming a tenon plate from a plastic film
NO320438B1 (en) 2004-04-15 2005-12-05 Isola As Bossed
DE05111659T1 (en) 2005-08-30 2007-08-09 Isola A/S Floor coverings with wooden slats on a substrate, method for dressing the substrate and use of studded slab

Also Published As

Publication number Publication date
BE751910A (en) 1970-12-14
CH507078A (en) 1971-05-15
NL7008054A (en) 1970-12-15
LU61107A1 (en) 1972-03-22
DE1929878A1 (en) 1970-12-17

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Legal Events

Date Code Title Description
ST Notification of lapse