FR2432377A1 - Perfectionnements a des recipients moules par rotation - Google Patents

Perfectionnements a des recipients moules par rotation

Info

Publication number
FR2432377A1
FR2432377A1 FR7919567A FR7919567A FR2432377A1 FR 2432377 A1 FR2432377 A1 FR 2432377A1 FR 7919567 A FR7919567 A FR 7919567A FR 7919567 A FR7919567 A FR 7919567A FR 2432377 A1 FR2432377 A1 FR 2432377A1
Authority
FR
France
Prior art keywords
flange
thermal shrinkage
vessel
mould
during cooling
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.)
Granted
Application number
FR7919567A
Other languages
English (en)
Other versions
FR2432377B3 (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.)
Rotoplas Ltd
Original Assignee
Rotoplas Ltd
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 Rotoplas Ltd filed Critical Rotoplas Ltd
Publication of FR2432377A1 publication Critical patent/FR2432377A1/fr
Application granted granted Critical
Publication of FR2432377B3 publication Critical patent/FR2432377B3/fr
Granted 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/38—Moulds, cores or other substrates
    • B29C41/386—Moulds, cores or other substrates for undercut 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould

Landscapes

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

Abstract

L'invention concerne un moule pour le moulage par rotation de récipients ayant une saillie d'ouverture de sortie venant de matière projetant d'une paroi latérale du récipient, ce moule comprenant une section principale de moulage et une section formant couvercle pour récupérer à travers elle, le récipient terminé. Selon l'invention, la section principale 101 est pourvue d'une cavité 109 pour y former la saillie 112, la pro ondeur de la cavité étant inférieure au taux de retrait par refroidissement du récipient 111 dans la direction de projection de la cavité. L'invention s'applique notamment au moulage de récipients en matière plastique de grand diamètre.
FR7919567A 1978-07-31 1979-07-30 Perfectionnements a des recipients moules par rotation Granted FR2432377A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL55251A IL55251A (en) 1978-07-31 1978-07-31 Rotationally moulded containers

Publications (2)

Publication Number Publication Date
FR2432377A1 true FR2432377A1 (fr) 1980-02-29
FR2432377B3 FR2432377B3 (fr) 1981-05-29

Family

ID=11050464

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7919567A Granted FR2432377A1 (fr) 1978-07-31 1979-07-30 Perfectionnements a des recipients moules par rotation

Country Status (4)

Country Link
AU (1) AU525933B2 (fr)
DE (1) DE2930365A1 (fr)
FR (1) FR2432377A1 (fr)
IL (1) IL55251A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847028A (en) * 1981-06-08 1989-07-11 Snyder Industries, Inc. Molding method for a container with internal projections
US4508113A (en) * 1984-03-09 1985-04-02 Chicopee Microfine fiber laminate
US4913944A (en) * 1984-05-01 1990-04-03 Old Town Canoe Company Boat hull
US4883626A (en) * 1987-03-24 1989-11-28 Cardinal Tank Corp. Method of molding a manhole frame for spherical tanks
US4818211A (en) * 1987-03-24 1989-04-04 Cardinal Tank Co. Die system for making manhole frame for spherical tanks

Also Published As

Publication number Publication date
FR2432377B3 (fr) 1981-05-29
AU4836579A (en) 1980-02-07
IL55251A (en) 1982-02-28
DE2930365A1 (de) 1980-02-21
AU525933B2 (en) 1982-12-09
IL55251A0 (en) 1978-09-29

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