WO1992003272A1 - Corps creux et procede de rotomoulage - Google Patents

Corps creux et procede de rotomoulage Download PDF

Info

Publication number
WO1992003272A1
WO1992003272A1 PCT/NO1991/000111 NO9100111W WO9203272A1 WO 1992003272 A1 WO1992003272 A1 WO 1992003272A1 NO 9100111 W NO9100111 W NO 9100111W WO 9203272 A1 WO9203272 A1 WO 9203272A1
Authority
WO
WIPO (PCT)
Prior art keywords
mould
wall
hollow body
moulding
moulding material
Prior art date
Application number
PCT/NO1991/000111
Other languages
English (en)
Inventor
Sigmund Berg
Original Assignee
Nordic Industrier A/S
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 Nordic Industrier A/S filed Critical Nordic Industrier A/S
Publication of WO1992003272A1 publication Critical patent/WO1992003272A1/fr

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
    • 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
    • B29C41/025—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 having hollow walls
    • 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
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps

Definitions

  • Containers made of, e.g., stainless steel are therefore used, which in order to withstan the strains to which they are exposed, must have relatively thick (2-3 mm) walls and in addition reinforcement ribs etc. attached thereto by welding, which makes them heavy and expensive.
  • the outer mould can also have indentations, but these can be shallower than those described above, in order to provide portions which constitute stiffening portions or ribs in the container's outer wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

On produit un corps creux comportant une paroi interne (10) et une paroi externe (11) à l'aide du rotomoulage d'une matière à mouler, par exemple une matière thermoplastique, au moyen d'un moule interne (1) et d'un moule externe (3). Dans un premier temps, on produit un objet (1) dont la surface interne correspond à la surface interne du corps creux. Ensuite, on relie l'objet de manière étanche à l'air à un moule externe (3) de manière qu'un espace (6) soit formé entre eux. On introduit la matière à mouler dans cet espace (6) et, au moyen d'une technique connue en soi, on fait en sorte que la matière se répand sur la surface externe de l'objet, c'est-à-dire la surface de l'objet en face du moule externe, pendant la rotation de l'ensemble de moulage, et qu'elle se colle à cette surface, tandis que la matière à mouler répandue sur la surface interne du moule externe (3) ne s'y colle pas. Lorsqu'on retire le moule externe (3), on obtient un corps creux possédant une paroi externe de matière moulée et une paroi interne comportant l'objet (1) dont l'extérieur est revêtu de matière moulée. On décrit à la fois le corps creux et le procédé de production.
PCT/NO1991/000111 1990-08-16 1991-08-15 Corps creux et procede de rotomoulage WO1992003272A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO903626 1990-08-16
NO903626A NO176510C (no) 1990-08-16 1990-08-16 Oppbevaringsbeholder for næringsmidler

Publications (1)

Publication Number Publication Date
WO1992003272A1 true WO1992003272A1 (fr) 1992-03-05

Family

ID=19893429

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1991/000111 WO1992003272A1 (fr) 1990-08-16 1991-08-15 Corps creux et procede de rotomoulage

Country Status (3)

Country Link
AU (1) AU8411291A (fr)
NO (1) NO176510C (fr)
WO (1) WO1992003272A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277292A (en) * 1993-04-20 1994-10-26 Glasdon Ltd Moulding a double-walled product
WO2008049137A1 (fr) * 2006-10-19 2008-04-24 Smit Hendrik Johannes Christia Réservoir pour fluides et son procédé de fabrication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958907A (en) * 1957-04-01 1960-11-08 Owens Illinois Glass Co Method of producing insulating containers
US3426110A (en) * 1965-03-26 1969-02-04 Gen Motors Corp Refrigerating apparatus
US4158686A (en) * 1975-06-28 1979-06-19 Alfred Boeckmann Method of making a solar energy collector
US4485057A (en) * 1982-02-23 1984-11-27 Lindab Nord Ab Method of producing insulated pipeline components

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958907A (en) * 1957-04-01 1960-11-08 Owens Illinois Glass Co Method of producing insulating containers
US3426110A (en) * 1965-03-26 1969-02-04 Gen Motors Corp Refrigerating apparatus
US4158686A (en) * 1975-06-28 1979-06-19 Alfred Boeckmann Method of making a solar energy collector
US4485057A (en) * 1982-02-23 1984-11-27 Lindab Nord Ab Method of producing insulated pipeline components

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277292A (en) * 1993-04-20 1994-10-26 Glasdon Ltd Moulding a double-walled product
GB2277292B (en) * 1993-04-20 1997-10-08 Glasdon Ltd Improvements in or relating to moulding techniques
WO2008049137A1 (fr) * 2006-10-19 2008-04-24 Smit Hendrik Johannes Christia Réservoir pour fluides et son procédé de fabrication

Also Published As

Publication number Publication date
NO176510C (no) 1995-04-19
NO903626L (no) 1992-02-17
AU8411291A (en) 1992-03-17
NO903626D0 (no) 1990-08-16
NO176510B (no) 1995-01-09

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