WO2008056246A3 - Method for successive and serial foaming of sandwich panels with polyurethane - Google Patents

Method for successive and serial foaming of sandwich panels with polyurethane Download PDF

Info

Publication number
WO2008056246A3
WO2008056246A3 PCT/IB2007/003428 IB2007003428W WO2008056246A3 WO 2008056246 A3 WO2008056246 A3 WO 2008056246A3 IB 2007003428 W IB2007003428 W IB 2007003428W WO 2008056246 A3 WO2008056246 A3 WO 2008056246A3
Authority
WO
WIPO (PCT)
Prior art keywords
sandwich panels
successive
cover plates
foam
serial
Prior art date
Application number
PCT/IB2007/003428
Other languages
French (fr)
Other versions
WO2008056246A2 (en
Inventor
Hans Chr Hovmand
Original Assignee
H C Hovmand Engineering As
Hans Chr Hovmand
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 DK200601461A external-priority patent/DK176726B1/en
Application filed by H C Hovmand Engineering As, Hans Chr Hovmand filed Critical H C Hovmand Engineering As
Publication of WO2008056246A2 publication Critical patent/WO2008056246A2/en
Publication of WO2008056246A3 publication Critical patent/WO2008056246A3/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1228—Joining preformed parts by the expanding material
    • B29C44/1233—Joining preformed parts by the expanding material the preformed parts being supported during expanding
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/385—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using manifolds or channels directing the flow in the mould
    • B29C44/386—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using manifolds or channels directing the flow in the mould using a movable, elongate nozzle, e.g. to reach deep into the mould
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/243—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention relates to a method for successive and serial foaming of sandwich panels with poiyurethane. The successive and serial injection of polyurethapie portions and the following foaming enables the poiyurethane to foam (expand) up to 180 degrees. In this way, the compressive stress on the inner side of the cover plates is minimized. At the same time, a fixation of the plate units (cover plates) of the sandwich panels via so-called 'foam bridges' is provided- The combination of the relatively low compressive stress on the inner side of the cover plates and the formation of 'foam-bridges' eliminates or reduces the need for using strong jigs or the similar devices for fixation of the cover plates of the sandwich panels during the polyurethapie injection itself.
PCT/IB2007/003428 2006-11-09 2007-11-09 Method for successive and serial foaming of sandwich panels with polyurethane WO2008056246A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200601461 2006-11-09
DK200601461A DK176726B1 (en) 2006-09-11 2006-11-09 Process for successive and serial foaming of sandwich panels with polyurethane

Publications (2)

Publication Number Publication Date
WO2008056246A2 WO2008056246A2 (en) 2008-05-15
WO2008056246A3 true WO2008056246A3 (en) 2008-07-17

Family

ID=39283976

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/003428 WO2008056246A2 (en) 2006-11-09 2007-11-09 Method for successive and serial foaming of sandwich panels with polyurethane

Country Status (1)

Country Link
WO (1) WO2008056246A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013002591B4 (en) * 2013-02-14 2015-09-03 Audi Ag Method for producing a foamed sandwich core, and method for producing a component in sandwich construction
US9862126B2 (en) 2014-03-19 2018-01-09 Great Dane Llc Method and apparatus for forming objects having a core and an outer surface structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846525A (en) * 1971-08-25 1974-11-05 Permatank Eng & Mfg Co Inc Method for manufacturing foam sandwich panels
US4091142A (en) * 1974-04-23 1978-05-23 Dura-Plex Industries, Inc. Structural panel and method of making same
US4815193A (en) * 1988-02-22 1989-03-28 Cherry Division Of Textron, Inc. Rivet installation tool and method of installing rivets
US20050055973A1 (en) * 2003-06-06 2005-03-17 Hans T. Hagen, Jr. Insulated stud panel and method of making such

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846525A (en) * 1971-08-25 1974-11-05 Permatank Eng & Mfg Co Inc Method for manufacturing foam sandwich panels
US4091142A (en) * 1974-04-23 1978-05-23 Dura-Plex Industries, Inc. Structural panel and method of making same
US4815193A (en) * 1988-02-22 1989-03-28 Cherry Division Of Textron, Inc. Rivet installation tool and method of installing rivets
US20050055973A1 (en) * 2003-06-06 2005-03-17 Hans T. Hagen, Jr. Insulated stud panel and method of making such

Also Published As

Publication number Publication date
WO2008056246A2 (en) 2008-05-15

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