[go: up one dir, main page]

WO2005011950A2 - Panneau isolant, procede et dispositif permettant de le produire, par pulverisation de resine expansible - Google Patents

Panneau isolant, procede et dispositif permettant de le produire, par pulverisation de resine expansible Download PDF

Info

Publication number
WO2005011950A2
WO2005011950A2 PCT/IT2003/000577 IT0300577W WO2005011950A2 WO 2005011950 A2 WO2005011950 A2 WO 2005011950A2 IT 0300577 W IT0300577 W IT 0300577W WO 2005011950 A2 WO2005011950 A2 WO 2005011950A2
Authority
WO
WIPO (PCT)
Prior art keywords
resin
sprayed
spraying
panels
expansible
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.)
Ceased
Application number
PCT/IT2003/000577
Other languages
English (en)
Other versions
WO2005011950A3 (fr
Inventor
Maurizio Morandi
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.)
Metecno SpA
Original Assignee
Metecno SpA
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 Metecno SpA filed Critical Metecno SpA
Priority to AU2003274717A priority Critical patent/AU2003274717A1/en
Priority to EP03758680A priority patent/EP1651416A2/fr
Publication of WO2005011950A2 publication Critical patent/WO2005011950A2/fr
Publication of WO2005011950A3 publication Critical patent/WO2005011950A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/326—Joining the preformed parts, e.g. to make flat or profiled sandwich laminates
    • 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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • 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
    • B29C44/388—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length into moving moulds
    • 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
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface

Definitions

  • Insulating panel process and apparatus for manufacturing thereof, with expansible resin spraying
  • the invention relates in general to the production of composite insulating panels.
  • these panels which are also commonly known as “sandwich” panels, are widely used in the civil and industrial construction field to form walls, roofs, coverings, slabs, sectional doors, etc.; they are also used to construct cold-storage rooms, or containers intended for low temperatures.
  • the panels considered herein comprise basically two opposed faces between which there is an insulating core made of expanded resin, also commonly known as foam; the latter is generally a polyurethane foam but may also be phenolic foam or foam of another type.
  • foam also commonly known as foam; the latter is generally a polyurethane foam but may also be phenolic foam or foam of another type.
  • the resin is applied on the lower strip and then expands whilst the strips pass through a continuos press which keeps them apart by a distance equal to the thickness of the finished panel.
  • the discontinuous production of the panels is more suitable for small series or for special panels; the latter may have outer faces made of metal or another material, such as for example plastic materials (polycarbonate or the like) or others (i.e. wood etc.).
  • the faces of the panels are prepared separately and then arranged in a mould where the polymer resin application and expansion take place, thereby forming the insulating foam. It can be appreciated that this production process requires a longer time with respect to the continuous one, since there are unavoidably idle times when the faces must be accommodated in the mould and the finished panel removed therefrom.
  • this known application method appears to depend significantly on the viscosity of the resin since the effect of the air thereon will clearly be different according to how liquid the resin is.
  • the known method may be difficult to implement according to the type of panels to be produced; thus, for example, it is not stated that it is effective in the same manner both for the production of panels with polyurethane resins and for the production of panels with phenolic resins.
  • the problem underlying the present invention is therefore that of providing a method for the continuous production of insulating panels in which the polymer resin is applied uniformly to at least one of the strips in a manner such as to prevent the formation of bubbles in the vicinity of the strips, also achieving improved adhesion between the foam and the surface of the strip.
  • the concept for the solution of this problem consists in the spray application of a first layer of resin onto the surface of the strip; the surface is in fact thus covered uniformly without lack of homogeneity which might give rise to bubbles.
  • a second layer of liquid resin can be poured thereon, thus producing an insulating core of the desired thickness and density.
  • FIG. 1 shows schematically apparatus for the continuous production of panels according to the invention
  • FIG. 2 shows a detail of the apparatus of Figure 1
  • Figure 3 is a section taken on the line m-IH of Figure 1,
  • Figure 4 is a perspective view of a panel formed in accordance with the invention.
  • Figures 5 and 6 show a variant of the above-mentioned apparatus in views similar to those of Figures 2 and 3, respectively;
  • Figures 7 and 8 show a perspective view and a sectional view of a variant of the panel of the invention
  • Figures 9 and 10 are a section and a perspective view of a manufacturing phase of the panel in fig. 7, 8;
  • Figure 11 is a variant of the manufacturing phase in fig. 9.
  • the first of these drawings shows an apparatus, generally indicated 1, for the continuous manufacturing of panels according to the invention, starting from two coils 2, 3 of metal strips 4 and 5.
  • the strips are processed by respective forming machines 6 and 7 to form therein the usual edges, ribs, profiling, etc., in known manner.
  • the strips 4 and 5 advance close together up to the zone for the application of expansible resin; this operation is performed in two steps.
  • the first step is constituted by the spraying application of a quick- reaction resin by a head 9; for this purpose, the head 9 moves to and fro (as indicated by the arrows in Figure 3) along a cross-member 10 arranged above the strip 4 and is provided with a spray nozzle of a type known er se and not shown in the drawings.
  • the speed of advance of the lower strip 4 is set in a manner such that the resin sprayed thereon expands (at least partially), forming a layer 13 which covers the strip 4 uniformly, before reaching a position below a second cross-member 11.
  • a pouring nozzle 12 of known type (which may be a single nozzle or a comb nozzle such as that of German published application No. 197 41 523) is movable to and fro along the second cross-member 11 and performs the second resin- application step, by pouring onto the expanded layer 13 a resin of the same type as that sprayed previously but in the liquid condition (the vertical broken line in Figure 3 indicates the pouring line).
  • the liquid resin then expands, filling the space between the strips 4 and 5 whilst they pass through a continuous press 14, also known er se. Downstream of the continuous press, a semi-finished product 16 formed by the two strips 4 and 5 with the expanded sprayed layer 13 and an insulating core 17 of foam of the second resin is thus obtained; the semi-finished product is then cut by a cutter 18, thereby obtaining finished panels 20 like that of Figure 4.
  • the production process described above solves the problem underlying the invention.
  • the spray application distributes the resin uniformly over the entire surface of the strip 4, so that the resulting layer 13 is free of internal voids or bubbles. This is due to the atomization of the resin supplied by the spray system, which enables the surface of the strip 4 to be covered with a thin film of small droplets similar to that of paints applied by the same method, wherein gas bubbles cannot build up.
  • the speed of movement of the head 9 along the cross-member 10 it will suffice to select the speed of movement of the head 9 along the cross-member 10 appropriately in dependence on various parameters such as, for example, the width of the strip, its speed of advance, the type of spray nozzle mounted on the head 9, the supply pressure of the nozzle, its distance from the strip, the type of resin applied, etc.
  • the resin since the resin is of the quick-reaction type, it produces a film 13 of foam on which the liquid resin can subsequently be applied in known manner; the interface between the two resins advantageously reduces the presence and/or the size of any voids in the mass of the second resin when it expands.
  • this production method is reliable, easy to implement and does not require complex adaptive modifications when the resin, the speed of the strip 4, or other production parameters are changed.
  • polymer resins polyurethane resins or the like
  • this technique is well known and has been used since a long time, so that changes in the type of resin do not alter the efficacy of the production process of the invention.
  • the production process may include also heating steps carried out with ovens or lamps disposed along the path of the strips 4 and 5, as is already known in the panel manufacturing; for example, an oven or lamps may be arranged upstream of the resin-application zone, that is before the spray head 9 and the cross-member 10, in order to accelerate the expansion of the resin sprayed onto the lower strip 4.
  • the nozzles will be selected among the most suitable for the operative conditions existing, such as the size and shape of the panel (profiled, corrugated, flat, curved, etc.), the type of apparatus
  • the spraying of the resin may also be performed on the upper strip, as an alternative to or in combination with the spraying on the lower strip; there may consequently be methods and apparatus for the production of panels in accordance with the invention, wherein the spraying is carried out on only one of the strips (that is, only the upper strip or the lower strip) or on both strips.
  • a spraying head like that of fig. 3 or a nozzle bar as in fig. 6; in both cases after the sprayed layer has expanded, liquid resin will be poured and the mould closed so as to let it expand thereby obtaining the desired thickness of the panel.
  • the peculiar feature of the architectural panels referred to as 40 is that they have outer faces 41 and 42 without fretting, ribbing or the like; they are therefore smooth and this renders critical the manufacturing process, because the presence of air bubbles between the outer faces and the foam of the insulating core 43, gives rise to surface defects which can disfigure the facade of the building where the panels are applied.
  • the lack of ribbings renders the outer faces of the panels less stiff and more deformable, so that actually they do not remain plane when there are defects in the core of insulating foam.
  • Another particular feature of the aforesaid panels is that they are generally mounted upon structures formed by pillars and beams 45, 46 by means of bolts 47, brackets 48 and similar; as a consequence their peripheral edges are shaped with long and thin appendices 49, to allow the coupling of the panels with the mounting elements.
  • the sprayed resin is preferably of the rapid reaction type, because it has resulted that this allows to obtain better results.
  • the resin can be sprayed also on the other face
  • the discontinuous manufacturing process of the panels is carried out using a vacuum support plane or base 52 where it is laid the sheet metal of the face 41 of the panel 40.
  • This plane is provided inside with channels 54 through which air is sucked in a manner known per se, thereby obtaining a depression under the face 41 which keeps it adhering to the plane 52 and eliminates the aforesaid undulations.
  • the plane 52 is also horizontally movable (as indicated by the arrow in fig. 8 and
  • porous support planes could be used, which do not require channels formed therein because the air can be sucked through them: to this purpose reference can be made to planes made of chipboards, plastic material with open cells or spongy material.
  • Pneumatic vacuum systems like that considered before can operate on all types of surfaces, either metallic, plastic or other, for keeping the planarity of the faces where the resin is sprayed.
  • the first of these alternatives is shown in fig. 11 where the support plane 52 is provided with magnets incorporated therein, which apply an attractive force on the face 41 made of sheet metal; the magnets can be either of natural type or electromagnets and, as mentioned above, they might be replaced with suction caps or other equivalent holding means.

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un panneau isolant et un procédé de production continue correspondant, selon lequel une résine polyuréthane expansible de type à réaction rapide est pulvérisée sur une bande (4). Une fois la résine pulvérisée expansée, une autre résine est versée à l'état liquide, ce qui permet de former le noyau isolant des panneaux. L'invention concerne également le dispositif correspondant pour mettre ledit procédé en oeuvre.
PCT/IT2003/000577 2003-08-01 2003-09-29 Panneau isolant, procede et dispositif permettant de le produire, par pulverisation de resine expansible Ceased WO2005011950A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003274717A AU2003274717A1 (en) 2003-08-01 2003-09-29 Insulating panel, process and apparatus for manufacturing thereof, with expansible resin spraying
EP03758680A EP1651416A2 (fr) 2003-08-01 2003-09-29 Panneau isolant, procede et dispositif permettant de le produire, par pulverisation de resine expansible

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPCT/IT03/00491 2003-08-01
PCT/IT2003/000491 WO2005011951A1 (fr) 2003-08-01 2003-08-01 Procede et appareil de fabrication de panneaux isolants, avec des resines expansibles pulverisees

Publications (2)

Publication Number Publication Date
WO2005011950A2 true WO2005011950A2 (fr) 2005-02-10
WO2005011950A3 WO2005011950A3 (fr) 2005-03-10

Family

ID=34113401

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/IT2003/000491 Ceased WO2005011951A1 (fr) 2003-08-01 2003-08-01 Procede et appareil de fabrication de panneaux isolants, avec des resines expansibles pulverisees
PCT/IT2003/000577 Ceased WO2005011950A2 (fr) 2003-08-01 2003-09-29 Panneau isolant, procede et dispositif permettant de le produire, par pulverisation de resine expansible

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/IT2003/000491 Ceased WO2005011951A1 (fr) 2003-08-01 2003-08-01 Procede et appareil de fabrication de panneaux isolants, avec des resines expansibles pulverisees

Country Status (4)

Country Link
EP (1) EP1651416A2 (fr)
CN (1) CN1839025A (fr)
AU (2) AU2003253303A1 (fr)
WO (2) WO2005011951A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008060346A1 (fr) * 2006-11-16 2008-05-22 Wayne-Dalton Corp. Stratification continue de panneaux de porte
WO2008104492A3 (fr) * 2007-02-28 2009-01-22 Basf Se Procédé de fabrication d'éléments composites sur la base de mousses à base d'isocyanate
EP2289684A1 (fr) * 2009-08-27 2011-03-02 Siempelkamp Handling Systeme GmbH Revêtement de couches d'éléments de montage, notamment pour la fabrication d'éléments en sandwich
US7955460B2 (en) 2008-05-02 2011-06-07 Overhead Door Corporation Movable barriers having transverse stiffeners and methods of making the same
RU2493004C2 (ru) * 2007-12-17 2013-09-20 Басф Се Способ изготовления композитных элементов на базе пенопластов на изоцианатной основе
RU2524395C2 (ru) * 2009-03-25 2014-07-27 Байер Матириальсайенс Аг Составные сэндвич-элементы

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541639A (en) * 1967-01-23 1970-11-24 Enroc Lab Dev Co Apparatus for making an athletic mat member
US3834967A (en) * 1971-04-30 1974-09-10 Control Building Syst Inc Apparatus for forming foamed panels
US3872199A (en) * 1971-06-16 1975-03-18 Champion Int Corp Method of manufacturing a foamed urethane structural product having high and low density portions
JPH0651304B2 (ja) * 1990-12-28 1994-07-06 大同鋼板株式会社 断熱パネルの製造方法及び製造装置
US5683796A (en) * 1995-10-05 1997-11-04 Atoma International Inc. Spray urethane method of making a headliner assembly
JP2000052466A (ja) * 1998-08-11 2000-02-22 Moriya Field:Kk 断熱パネルの製造方法

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008060346A1 (fr) * 2006-11-16 2008-05-22 Wayne-Dalton Corp. Stratification continue de panneaux de porte
WO2008104492A3 (fr) * 2007-02-28 2009-01-22 Basf Se Procédé de fabrication d'éléments composites sur la base de mousses à base d'isocyanate
AU2008220882B2 (en) * 2007-02-28 2012-03-29 Basf Se Method for producing composite elements on the basis of foamed material based on isocyanate
RU2466019C2 (ru) * 2007-02-28 2012-11-10 Басф Се Способ получения композитных элементов на основе пенопластов на основе изоцианатов
KR101458238B1 (ko) 2007-02-28 2014-11-04 바스프 에스이 이소시아네이트계 발포체에 기초한 복합 부재의 제조 방법
EP2125323B1 (fr) 2007-02-28 2015-08-19 Basf Se Procédé de fabrication d'éléments composites sur la base de mousses à base d'isocyanate
RU2493004C2 (ru) * 2007-12-17 2013-09-20 Басф Се Способ изготовления композитных элементов на базе пенопластов на изоцианатной основе
US7955460B2 (en) 2008-05-02 2011-06-07 Overhead Door Corporation Movable barriers having transverse stiffeners and methods of making the same
US8220519B2 (en) 2008-05-02 2012-07-17 Overhead Door Corporation Movable barriers having transverse stiffeners and methods of making the same
RU2524395C2 (ru) * 2009-03-25 2014-07-27 Байер Матириальсайенс Аг Составные сэндвич-элементы
EP2289684A1 (fr) * 2009-08-27 2011-03-02 Siempelkamp Handling Systeme GmbH Revêtement de couches d'éléments de montage, notamment pour la fabrication d'éléments en sandwich

Also Published As

Publication number Publication date
AU2003253303A1 (en) 2005-02-15
EP1651416A2 (fr) 2006-05-03
AU2003274717A1 (en) 2005-02-15
CN1839025A (zh) 2006-09-27
WO2005011951A1 (fr) 2005-02-10
WO2005011950A3 (fr) 2005-03-10
AU2003274717A8 (en) 2005-02-15

Similar Documents

Publication Publication Date Title
US4091142A (en) Structural panel and method of making same
EP3625019B1 (fr) Procédé de fabrication d'un panneau de construction sur mesure
US5928585A (en) Method for the production of slabs of granulated stone materials and/or sands bound with a hardenable resin
CN101801634A (zh) 用于制造泡沫制品的方法
CA2227073A1 (fr) Methode pour la fabrication continue de mousse plastique
US20180245335A1 (en) Insulating panel and insulating arrangement
WO2005011950A2 (fr) Panneau isolant, procede et dispositif permettant de le produire, par pulverisation de resine expansible
KR101601078B1 (ko) 발포우레탄 샌드위치 패널 제조시설
US3776990A (en) Method of forming solid structures from a continuously supplied liquid
US10760271B2 (en) Additive manufactured multi-colored wall panel
JP3656011B2 (ja) 低温タンク壁面の断熱層施工法及びその施工装置
EP1509375B1 (fr) Procede destine au traitement en surface d'articles en argile, en ceramique ou en ciment
US11174636B2 (en) Additive manufactured multi-colored wall panel
EP0865550B1 (fr) Procede de fabrication d'elements de coffrage pour ouvrages a enveloppe en beton
EP4025402A1 (fr) Chaîne de production d'élément de panneau
NL1037711C2 (nl) Werkwijze voor het vervaardigen van een skeletbouwsegment, een skeletbouwsegment verkregen volgens deze werkwijze, een inrichting en een computerprogramma voor het uitvoeren van deze werkwijze.
WO2018007413A1 (fr) Panneau
JPS6130847Y2 (fr)
JPS5839055B2 (ja) 補強材入り断熱パネルの製造方法
JPS6317604B2 (fr)
KR100648613B1 (ko) 건축용 복합 판넬 연속 제조 시스템 및 연속 제조 방법
JPS5839054B2 (ja) 補強材入り断熱パネルの製造方法
JPH10252169A (ja) 低温タンク壁面の防熱施工法
JPS6222341Y2 (fr)
EA047429B1 (ru) Теплоизоляционная плита из минеральной ваты для реконструкции фасадов

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 03827154.0

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2003758680

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 06020503

Country of ref document: CO

Ref document number: 1200600320

Country of ref document: VN

WWP Wipo information: published in national office

Ref document number: 2003758680

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP