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WO2004023006A1 - Cadre de porte avec joint d'etancheite pour appareils de refrigeration - Google Patents

Cadre de porte avec joint d'etancheite pour appareils de refrigeration Download PDF

Info

Publication number
WO2004023006A1
WO2004023006A1 PCT/EP2003/009602 EP0309602W WO2004023006A1 WO 2004023006 A1 WO2004023006 A1 WO 2004023006A1 EP 0309602 W EP0309602 W EP 0309602W WO 2004023006 A1 WO2004023006 A1 WO 2004023006A1
Authority
WO
WIPO (PCT)
Prior art keywords
profile
sealing frame
door sealing
magnetic
frame according
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/EP2003/009602
Other languages
German (de)
English (en)
Inventor
Gerd Puchta
Steven Schmidt
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.)
Rehau Automotive SE and Co KG
Original Assignee
Rehau AG and Co
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 Rehau AG and Co filed Critical Rehau AG and Co
Priority to AU2003266327A priority Critical patent/AU2003266327A1/en
Publication of WO2004023006A1 publication Critical patent/WO2004023006A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
    • E05C19/161—Devices holding the wing by magnetic or electromagnetic attraction magnetic gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F25D23/082—Strips
    • F25D23/087—Sealing strips

Definitions

  • the invention relates to the production of coextruded door sealing frames for cooling devices.
  • door sealing frames for cooling devices for example refrigerators or freezers
  • the polymeric sealing profile is produced by extrusion and - separately - the magnetic profile. Then cut the sealing profile and magnetic profile to length and put the magnetic profile in the pocket of the sealing profile. The connection of the two components is therefore loose mechanical, not cohesive.
  • the finished door sealing frame is now manufactured by corner welding • the four miter cut sections. However, corner welding only takes place in the contact area of the sealing profiles, while welding in the contact area of the magnetic profiles does not occur.
  • US 311728 - for applications in automobile construction or in cooling devices - describes the coextrusion of a permanently magnetic, flexible plastic strip with a non-magnetic, polymeric counterpart, the latter being designed as a foamed hollow profile and performing the sealing function.
  • DE 2601439 teaches a V-shaped sealing system which consists of a polymer-bound, magnetic component on one leg and a soft, flexible plastic lip on the other leg.
  • the arrangement is out of the question for a cooling device sealing system, since the insulating effect of the system is inadequate due to the lack of at least one heat-insulating air chamber.
  • EP 1031450 describes the production of a polymer compression sealing profile, which is divided into several steps, for applications in door and window areas in automobile construction with a polymer-based, magnetic component subsequently extruded onto the surface.
  • the disadvantage here is the design as a compression seal, furthermore the fact that the magnetic component is not protected by the sealing profile, which leads to losses in aesthetics and increased wear and soiling.
  • the present invention namely to use the magnetic profile - in addition to the sealing profile - for the connection in the corner area and to apply this solution to so-called breathing sealing systems which have a magnetic component in an all-round enclosed, direct material connection, is therefore not from the prior art Technology emerges and is not suggested.
  • the object of the invention was to provide a door sealing frame, manufactured as possible in one operation, which has no visible magnetic stripe and thus a perfect appearance, which can be produced inexpensively, ensures a reliable sealing function, has a significantly improved dimensional accuracy and its magnetic profile with the sealing profile - and for the connection in the corner area - can be welded to itself.
  • the object was achieved by developing a door sealing frame, the recipes of the sealing profile and the magnetic profile are chemically compatible with one another, and the recipe for the magnetic profile is selected such that it is capable of - without losing the ability to extrude - sufficiently large quantities to record magnetic component.
  • the necessary magnetic adhesive force is achieved, on the other hand, the possibility is created that the magnetic profile can be welded both to itself and to the sealing profile.
  • Polymers According to the invention, these are either CPE or ESI for the magnetic profile, PVC or SRT for the sealing profile.
  • the individual components are in the case of the magnetic profile with regard to flow behavior and long-term stability so that a content of the magnetic component of at least 60 vol% is achieved without losing the extrusion ability of the mixture.
  • the recipe for the magnetic profile consists of the following components:
  • inorganic oxide magnetic materials e.g. B. from the family of alkaline earth ferrites or rare earths.
  • polymeric, thermoplastic binders e.g. B. from the family of styrene copolymers or chlorinated polyethylenes.
  • plasticizers selected from the family of poly plasticizers, e.g. B. from the polyester family.
  • extrusion aids or lubricants selected from the family of long-chain carboxylic acids or waxes.
  • the magnetic profile can be connected to the sealing profile by coextrusion.
  • the coextruded sealing profile consists of the following components;
  • thermoplastic binders e.g. B. from the family of styrene copolymers or PVC.
  • plasticizers e.g. B. on the basis of phthalates or mineral oils.
  • extrusion aids or lubricants e.g. B. from the family of long-chain carboxylic acids or waxes.
  • a stabilizer e.g. B. from the family of stearates or phenol derivatives.
  • the following describes how the magnetic component is prepared and cohesively connected to the sealing profile in the co-extrusion process, and how the co-extruded magnetic sealing profile is welded to a finished door sealing frame.
  • the magnetic profile comprises the following components:
  • the ferrite is placed in an internal mixer and the remaining components are added all at once, so that a degree of filling of approx. 60 vol% is achieved.
  • the components are mixed and heated up to a temperature of 115 ° C. In order to ensure homogeneous mixing, mixing is continued at this temperature for a further 90 seconds before the magnetic material is crushed and sent for further processing.
  • a magnetic profile according to the invention produced by the extrusion process has the following properties: Shore hardness: D 50 tensile strength: ⁇ 3 N / mm 2 elongation at break:> 20% density: 3.5 - 3.6 g / cm 3 b) sealing profile:
  • the magnetic component is coextruded with the sealing profile as described below.
  • the tool structure is chosen in such a way that a larger extruder produces the magnetic profile, a smaller extruder the sealing profile, including the extrusion coating of the magnetic profile.
  • the following temperature routing of the individual heating zones (starting with the feed zone) must be observed: magnetic profile 50 - 190 ° C ascending, sealing profile 20 - 210 ° C ascending.
  • the ferrite-containing profile is magnetized inline after the coextruded TDR has dried by pulse magnetization using inductive coils through the sealing profile. In order to compensate for the magnetic air gap during magnetization, magnetization must be carried out with a significantly increased induction voltage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Sealing Material Composition (AREA)

Abstract

L'invention concerne un cadre de porte avec joint d'étanchéité pour des appareils électroménagers. Selon l'invention, la formulation du joint d'étanchéité profilé et celle du profilé magnétique sont chimiquement compatibles, de sorte que ces éléments sont reliés par liaison de matière selon un procédé de coextrusion. Ces profilés ainsi coextrudés sont coupés et assemblés par soudage dans les angles pour former un cadre avec joint d'étanchéité, les interfaces profilé magnétique - profilé magnétique et joint d'étanchéité profilé - joint d'étanchéité profilé étant également réalisées par liaison de matière. Ces assemblages d'angle par liaison de matière confèrent au cadre fini une résistance angulaire et une stabilité dimensionnelle sensiblement accrues.
PCT/EP2003/009602 2002-09-05 2003-08-29 Cadre de porte avec joint d'etancheite pour appareils de refrigeration Ceased WO2004023006A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003266327A AU2003266327A1 (en) 2002-09-05 2003-08-29 Door sealing frame for refrigerating devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002140993 DE10240993A1 (de) 2002-09-05 2002-09-05 Türdichtungsrahmen für Kühlgeräte
DE10240993.5 2002-09-05

Publications (1)

Publication Number Publication Date
WO2004023006A1 true WO2004023006A1 (fr) 2004-03-18

Family

ID=31724366

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/009602 Ceased WO2004023006A1 (fr) 2002-09-05 2003-08-29 Cadre de porte avec joint d'etancheite pour appareils de refrigeration

Country Status (3)

Country Link
AU (1) AU2003266327A1 (fr)
DE (1) DE10240993A1 (fr)
WO (1) WO2004023006A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102941661A (zh) * 2012-11-07 2013-02-27 安徽万朗磁塑集团有限公司 一种磁塑共挤门封条的制备方法
CN106633516A (zh) * 2016-12-13 2017-05-10 安庆市吉美装饰材料有限责任公司 一种pvc复合热稳定剂

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014102839U1 (de) * 2014-06-23 2015-09-24 Rehau Ag + Co. Magnetband mit Dekorationselement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5336567A (en) * 1976-09-17 1978-04-04 Kanegafuchi Chemical Ind Method of producing magnet contained gasket
JPS53120787A (en) * 1977-03-30 1978-10-21 Toshiba Corp Weld jointing of magnet gaskets
JPS53121879A (en) * 1977-04-01 1978-10-24 Toshiba Corp Preparation of magnet gasket
DE29617901U1 (de) * 1996-10-15 1996-12-05 Bonné, Andreas, Dipl.-Ing., 88167 Grünenbach Dichtungsprofil mit dauermagnetischer Haltefunktion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927719C2 (de) * 1989-08-23 1995-01-05 Alkor Gmbh Kunststofformmasse und Verwendung derselben
IT1252066B (it) * 1991-11-25 1995-05-29 Ilpea Ind Spa Guarnizione magnetica adatta ad effettuare una tenuta tra una parte fissa ed una parte apribile
IT1271303B (it) * 1994-12-20 1997-05-27 Ilpea Ind Spa Materiale polimerico per la fabbricazione di guarnizioni specie per frigoriferi,e guarnizioni con esso ottenute
TW338167B (en) * 1995-10-18 1998-08-11 Seiko Epson Corp Rare-earth adhesive magnet and rare-earth adhesive magnet components
WO1997040974A1 (fr) * 1996-04-25 1997-11-06 Industrie Ilpea S.P.A. Procede et dispositif de thermosoudage de longueurs de profiles destines a des joints d'etancheite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5336567A (en) * 1976-09-17 1978-04-04 Kanegafuchi Chemical Ind Method of producing magnet contained gasket
JPS53120787A (en) * 1977-03-30 1978-10-21 Toshiba Corp Weld jointing of magnet gaskets
JPS53121879A (en) * 1977-04-01 1978-10-24 Toshiba Corp Preparation of magnet gasket
DE29617901U1 (de) * 1996-10-15 1996-12-05 Bonné, Andreas, Dipl.-Ing., 88167 Grünenbach Dichtungsprofil mit dauermagnetischer Haltefunktion

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 002, no. 155 (C - 032) 26 December 1978 (1978-12-26) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102941661A (zh) * 2012-11-07 2013-02-27 安徽万朗磁塑集团有限公司 一种磁塑共挤门封条的制备方法
CN106633516A (zh) * 2016-12-13 2017-05-10 安庆市吉美装饰材料有限责任公司 一种pvc复合热稳定剂

Also Published As

Publication number Publication date
AU2003266327A1 (en) 2004-03-29
DE10240993A1 (de) 2004-03-18

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