DE19757541A1 - Process for producing a shell-shaped vacuum insulation panel and its use as an insulation element - Google Patents

Process for producing a shell-shaped vacuum insulation panel and its use as an insulation element

Info

Publication number
DE19757541A1
DE19757541A1 DE19757541A DE19757541A DE19757541A1 DE 19757541 A1 DE19757541 A1 DE 19757541A1 DE 19757541 A DE19757541 A DE 19757541A DE 19757541 A DE19757541 A DE 19757541A DE 19757541 A1 DE19757541 A1 DE 19757541A1
Authority
DE
Germany
Prior art keywords
producing
vacuum
vacuum chamber
panel
shaped vacuum
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
DE19757541A
Other languages
German (de)
Inventor
Karl-Werner Dr Dietrich
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to DE19757541A priority Critical patent/DE19757541A1/en
Priority to PCT/EP1998/008076 priority patent/WO1999033638A1/en
Publication of DE19757541A1 publication Critical patent/DE19757541A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/065—Arrangements using an air layer or vacuum using vacuum
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/04—Bending or folding of plates or sheets
    • B29C53/06—Forming folding lines by pressing or scoring
    • B29C53/063—Forming folding lines by pressing or scoring combined with folding
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/18—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using tubular layers or sheathings
    • B29C63/20—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using tubular layers or sheathings using pressure difference, e.g. vacuum
    • 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
    • E04C2/32—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 formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • E04C2/328—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 formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material slightly bowed or folded panels not otherwise provided for
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0054—Shaping techniques involving a cutting or machining operation partially cutting through the material
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0081—Shaping techniques involving a cutting or machining operation before shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0015—Insulating
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2203/00—Specially structured or shaped covering, lining or flooring elements not otherwise provided for
    • E04F2203/08—Specially structured or shaped covering, lining or flooring elements not otherwise provided for with a plurality of grooves or slits in the back side, to increase the flexibility or bendability of the elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

The invention relates to a method for producing a saucer-shaped vacuum insulating panel. According to said method a) straight grooves are placed parallel to each other across the entire surface of one side of a flat panel made of a porous plastic material, b) said panel is vacuum-sealed on all sides with a gas-tight film in a vacuum chamber, and c) normal pressure is restored in the vacuum chamber.

Description

Die Erfindung betrifft schalenförmige Vakuumisolierpaneele sowie deren Verwendung als thermisches Dämmaterial.The invention relates to bowl-shaped vacuum insulation panels and their Use as thermal insulation material.

Vakuumisolierpaneele werden in der Regel nach folgendem Produktionsschema hergestellt:
Eine starre Platte aus einem porigen Material - in der Regel aus einem starren Kunststoffschaumstoff - wird in einen auf 3 Seiten versiegelten Folienbeutel eingelegt. In einer Vakuumkammer wird dann die 4. Seite versiegelt.Vacuum insulation panels are usually manufactured according to the following production scheme:
A rigid plate made of a porous material - usually made of a rigid plastic foam - is placed in a foil pouch sealed on 3 sides. The 4th side is then sealed in a vacuum chamber.

Der Folienbeutel besteht in der Regel aus einer mehrschichtigen Folie mit den Hauptkomponenten: Aluminium als Sperrschicht und Polyethylen als Siegelschicht.The foil bag usually consists of a multi-layer foil with the Main components: aluminum as a barrier layer and polyethylene as a sealing layer.

Nach diesem Verfahren erhält man Hochleistungsdämmstoffe, die in ihrer niedrigen Wärmeleitfähigkeit allen anderen Materialien überlegen sind.This process gives high-performance insulation materials that are low Thermal conductivity is superior to all other materials.

Ihre Anwendung wird jedoch eingeschränkt durch die Notwendigkeit, die Siegelnähte stets in der Ebene anzubringen. Schalenförmige, d. h. gekrümmte Dämmelemente lassen sich nicht bzw. nur umständlich herstellen. Der Einsatz derartig geformter Dämmelemente wäre z. B. zur Isolierung gekrümmter Oberflächen, z. B. Rohren wünschenswert.However, their application is limited by the need for the sealed seams always to be installed in the plane. Cup-shaped, d. H. curved insulation elements cannot be manufactured or only with difficulty. The use of such shaped Insulating elements would be z. B. for the isolation of curved surfaces, for. B. pipes desirable.

Es bestand somit die Aufgabe, ein Verfahren zur Herstellung gekrümmter Vakuumisolierpaneele aufzufinden.It was therefore the task of a method for producing curved Find vacuum insulation panels.

Überraschenderweise wurde nun gefunden, daß man schalenförmige Vakuumisolierpaneele mit hervorragender Maßgenauigkeit herstellen kann, indem man vor dem Evakuieren und Versiegeln des Vakuumisolierpaneels in die Kernplatte auf einer Seite Rillen einfräßt (Zeichnung I).Surprisingly, it has now been found that bowl-shaped Vacuum insulation panels with excellent dimensional accuracy can be produced by one before evacuating and sealing the vacuum insulation panel into the core plate grooves on one side (drawing I).

Nach dem Evakuieren, Versiegeln und Belüften der Vakuumkammer wird dann das Vakuumisolierpaneel unter der Einwirkung des Luftdruckes gemäß Zeichnung II zur gekerbten Seite hin gekrümmt.After evacuating, sealing and venting the vacuum chamber, this will be the case Vacuum insulation panel under the influence of air pressure according to drawing II notched side curved.

Gegenstand der Erfindung ist daher ein Verfahren zur Herstellung eines schalenförmigen Vakuumisolierpaneels, bei dem man
The invention therefore relates to a method for producing a shell-shaped vacuum insulation panel, in which

  • a) auf einer Seite einer ebenen Platte aus porigem Kunststoff parallel zueinander über die gesamte Fläche verlaufende geradlinige Rillen anbringt,a) on one side of a flat plate made of porous plastic parallel to each other makes straight grooves across the entire surface,
  • b) die Platte allseitig mit einer gasdichten Folie in einer Vakuumkammer vakuumdicht versiegelt,b) the plate is vacuum-tight on all sides with a gas-tight film in a vacuum chamber sealed,
  • c) die Vakuumkammer anschließend wieder auf Normaldruck belüftet.c) the vacuum chamber is then vented back to normal pressure.

Der auf das so erfindungsgemäß hergestellte Vakuumisolierpaneel einwirkende Atmosphärendruck bewirkt eine Krümmung des Vakuumisolierpaneels.The one acting on the vacuum insulation panel produced according to the invention Atmospheric pressure causes the vacuum insulation panel to bend.

Hierbei läßt sich der Krümmungsradius des Paneels durch die Anzahl und die Breite der eingefräßten Rillen genau vorausberechnen.The radius of curvature of the panel can be determined by the number and the width Precisely calculate the milled grooves.

Die Rillen können z. B. mit Kreissägen oder Schleifscheiben eingefräßt werden.The grooves can e.g. B. be milled with circular saws or grinding wheels.

Die Rillen können rechteckiges oder trapezförmiges Profil haben (Zeichnung IIIa + IIIb).The grooves can have a rectangular or trapezoidal profile (drawing IIIa + IIIb).

Die Rillen sollten vorzugsweise 50 bis 75% bezogen auf die Plattendicke in die Platte eindringen.The grooves should preferably be 50 to 75% based on the plate thickness in the Penetrate plate.

Die porige Kunstoffplatte kann z. B. aus Polystyrol oder Polyurethan bestehen. Bevorzugt besteht die Platte aus porigem Polyurethan, insbesondere aus Polyurethanabfällen recyclten verpreßten Polyurethanflocken oder -pulver.The porous plastic plate can e.g. B. consist of polystyrene or polyurethane. The plate preferably consists of porous polyurethane, in particular of Polyurethane waste recycled pressed polyurethane flakes or powder.

Ein weiterer Gegenstand der Erfindung ist die Verwendung der erfindungsgemäß hergestellten schalenförmigen Vakuumisolierpaneele als thermische Dämmelemente, bei gekrümmten Oberflächen, z. B. Kühlgerätetüren, der Rohrisolierung sowie bei zylinderförmigen Heißwasserspeichern.Another object of the invention is the use of the invention produced bowl-shaped vacuum insulation panels as thermal Insulating elements for curved surfaces, e.g. B. refrigerator doors, the Pipe insulation as well as with cylindrical hot water tanks.

Beispielexample

Eine Platte mit den Maßen 480 × 460 × 25 mm wird mit 9 querlaufenden Rillen im Abstand von 46 mm, einer Rillenbreite von 3 mm und einer Rillentiefe von 16 mm versehen. Die Rillen werden mittels einer Kreissäge eingefräßt.A plate with the dimensions 480 × 460 × 25 mm is made with 9 transverse grooves in the Distance of 46 mm, a groove width of 3 mm and a groove depth of 16 mm Mistake. The grooves are milled using a circular saw.

Die so vorbereitete Platte wird in einem Folienbeutel (Aufbau der Folie: Polyethylen, Aluminium 6 µ, Polyester) gesteckt, in einer Vakuumkammer auf 0,5 mbar Innendruck gebracht und am Rand thermisch versiegelt. Nach Belüften der Vakuumkammer verformt sich das vorher ebene Paneel zu einer Viertelschale mit einem Radius von 300 mm.The plate prepared in this way is placed in a foil bag (structure of the foil: polyethylene, Aluminum 6 µ, polyester) inserted, in a vacuum chamber to 0.5 mbar Inside pressure and thermally sealed at the edge. After venting the Vacuum chamber deforms the previously flat panel into a quarter shell a radius of 300 mm.

Claims (2)

1. Verfahren zur Herstellung eines schalenförmigen Vakuumisolierpaneels, bei dem man
  • a) auf einer Seite einer ebenen Platte aus porigen Kunststoff parallel zueinander über die gesamte Fläche verlaufende geradlinige Rillen anbringt,
  • b) die Platte allseitig mit einer gasdichten Folie in einer Vakuumkammer vakuumdicht versiegelt,
  • c) die Vakuumkammer anschließend wieder auf Normaldruck belüftet.
1. A process for producing a cup-shaped vacuum insulation panel, in which
  • a) making linear grooves running parallel to one another over the entire surface on one side of a flat plate made of porous plastic,
  • b) the plate is sealed on all sides with a gas-tight film in a vacuum chamber,
  • c) the vacuum chamber is then vented back to normal pressure.
2. Verwendung von gemäß Anspruch 1 hergestellten schalenförmigen Vakuum Isolierpaneelen als thermische Dämmelemente.2. Use of cup-shaped vacuum produced according to claim 1 Insulating panels as thermal insulation elements.
DE19757541A 1997-12-23 1997-12-23 Process for producing a shell-shaped vacuum insulation panel and its use as an insulation element Ceased DE19757541A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19757541A DE19757541A1 (en) 1997-12-23 1997-12-23 Process for producing a shell-shaped vacuum insulation panel and its use as an insulation element
PCT/EP1998/008076 WO1999033638A1 (en) 1997-12-23 1998-12-10 Method for producing a saucer-shaped vacuum insulating panel and use of same as insulating element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19757541A DE19757541A1 (en) 1997-12-23 1997-12-23 Process for producing a shell-shaped vacuum insulation panel and its use as an insulation element

Publications (1)

Publication Number Publication Date
DE19757541A1 true DE19757541A1 (en) 1999-07-01

Family

ID=7853189

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19757541A Ceased DE19757541A1 (en) 1997-12-23 1997-12-23 Process for producing a shell-shaped vacuum insulation panel and its use as an insulation element

Country Status (2)

Country Link
DE (1) DE19757541A1 (en)
WO (1) WO1999033638A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1070475A2 (en) * 1999-07-19 2001-01-24 Kunststofftechnik Schedel GmbH Hard foam support for the installation of a bathtub or a shower tray on a substantially flat under surface
EP1262605A2 (en) * 2001-05-29 2002-12-04 Österreichische Heraklith GmbH Shaped body
WO2003002834A1 (en) * 2001-06-29 2003-01-09 Sentry Protection Products, Inc. Apparatus for protecting a structural column
DE202011050315U1 (en) * 2011-05-31 2012-09-03 Christoph Jaeger buffer memory
EP2801774A4 (en) * 2012-01-06 2015-10-07 Lg Hausys Ltd Refrigerator insulating door having three-dimensional shape

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT43991B (en) * 1909-03-04 1910-09-10 Fernand Maurice Plancq Collapsible box.
DE2930887A1 (en) * 1979-07-30 1981-02-19 Hymer Kg Curved foam core sandwich panels - where panels are bent after receiving saw cuts on inner face at bend area
US5421938A (en) * 1991-09-12 1995-06-06 Glass Master Corporation Circular duct and apparatus and method of fabrication

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215798A (en) * 1979-01-15 1980-08-05 Union Carbide Corporation Container for cryogenic liquid
DE2951660A1 (en) * 1979-12-21 1981-07-02 Dynamit Nobel Ag, 5210 Troisdorf INSULATING COVER MADE OF SOFT FOAM AND METHOD FOR THE PRODUCTION THEREOF
FR2657944B1 (en) * 1990-02-05 1992-09-04 Texas Ind Insulations COMPOSITE PLATE INSULATION MATERIAL WITH V-NOTCHES
DK0820568T3 (en) * 1995-04-13 2000-08-28 Huntsman Ici Chem Llc Process for the manufacture of non-planar, air-empty insulating plates

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT43991B (en) * 1909-03-04 1910-09-10 Fernand Maurice Plancq Collapsible box.
DE2930887A1 (en) * 1979-07-30 1981-02-19 Hymer Kg Curved foam core sandwich panels - where panels are bent after receiving saw cuts on inner face at bend area
US5421938A (en) * 1991-09-12 1995-06-06 Glass Master Corporation Circular duct and apparatus and method of fabrication

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1070475A2 (en) * 1999-07-19 2001-01-24 Kunststofftechnik Schedel GmbH Hard foam support for the installation of a bathtub or a shower tray on a substantially flat under surface
EP1070475A3 (en) * 1999-07-19 2003-07-02 Kunststofftechnik Schedel GmbH Hard foam support for the installation of a bathtub or a shower tray on a substantially flat under surface
EP1262605A2 (en) * 2001-05-29 2002-12-04 Österreichische Heraklith GmbH Shaped body
EP1262605A3 (en) * 2001-05-29 2004-02-04 Heraklith AG Shaped body
WO2003002834A1 (en) * 2001-06-29 2003-01-09 Sentry Protection Products, Inc. Apparatus for protecting a structural column
DE202011050315U1 (en) * 2011-05-31 2012-09-03 Christoph Jaeger buffer memory
EP2801774A4 (en) * 2012-01-06 2015-10-07 Lg Hausys Ltd Refrigerator insulating door having three-dimensional shape
US9243836B2 (en) 2012-01-06 2016-01-26 Lg Hausys, Ltd. Heat insulation door for a refrigerator having 3 dimensional shapes

Also Published As

Publication number Publication date
WO1999033638A1 (en) 1999-07-08

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