DE4418318A1 - Domestic double-walled insulating ceramic vessel - Google Patents

Domestic double-walled insulating ceramic vessel

Info

Publication number
DE4418318A1
DE4418318A1 DE19944418318 DE4418318A DE4418318A1 DE 4418318 A1 DE4418318 A1 DE 4418318A1 DE 19944418318 DE19944418318 DE 19944418318 DE 4418318 A DE4418318 A DE 4418318A DE 4418318 A1 DE4418318 A1 DE 4418318A1
Authority
DE
Germany
Prior art keywords
ceramic
double
insulating ceramic
vessel
walled
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
DE19944418318
Other languages
German (de)
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.)
HEIMSOTH KERAMISCHE OEFEN
Original Assignee
HEIMSOTH KERAMISCHE OEFEN
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 HEIMSOTH KERAMISCHE OEFEN filed Critical HEIMSOTH KERAMISCHE OEFEN
Priority to DE19944418318 priority Critical patent/DE4418318A1/en
Publication of DE4418318A1 publication Critical patent/DE4418318A1/en
Ceased legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/001Joining burned ceramic articles with other burned ceramic articles or other articles by heating directly with other burned ceramic articles
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J41/00Thermally-insulated vessels, e.g. flasks, jugs, jars
    • A47J41/0055Constructional details of the elements forming the thermal insulation
    • A47J41/0072Double walled vessels comprising a single insulating layer between inner and outer walls
    • A47J41/0077Double walled vessels comprising a single insulating layer between inner and outer walls made of two vessels inserted in each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B18/00Layered products essentially comprising ceramics, e.g. refractory products
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52Constituents or additives characterised by their shapes
    • C04B2235/5208Fibers
    • C04B2235/5216Inorganic
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32Ceramic
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32Ceramic
    • C04B2237/38Fiber or whisker reinforced

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Food Science & Technology (AREA)
  • Table Devices Or Equipment (AREA)

Abstract

Prodn. of a double-walled insulated vessel for domestic use involves: (a) separately moulding inner and outer ceramic casings; (b) covering the inner casing at least partially with ceramic fibrous material and inserting it in the outer casing; and (c) subjecting the assembly to drying, initial firing, glazing and final firing.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines doppelwandigen Keramikgefäßes.The invention relates to a method of manufacture a double-walled ceramic vessel.

Im Haushalt werden seit einiger Zeit sogenannte Isoliergefäße oder Thermokannen eingesetzt. Diese bestehen von außen her gesehen zunächst aus einem Kunststoffgehäuse, in dem sich im Inneren ein sogenanntes Dewar-Gefäß befindet. Es handelt sich hierbei um ein doppelwandiges Glasgebilde, dessen eingeschlossene Luftschicht dafür sorgt, daß der Innenraum gegenüber dem Außenraum lange Zeit auf der gewünschten Temperatur gehalten werden kann. Das Dewar-Gefäß selbst ist sehr empfindlich und bedarf immer einer schützenden Umhüllung. Wenngleich nun die Außenhülle in nahezu beliebiger Form, Gestaltung und Farbe hergestellt werden kann, so handelt es sich dennoch im Gegensatz zu dem üblicherweise aus Porzellan bestehende Geschirr einer Kaffeetafel um einen Fremdkörper.So-called insulating vessels have been used in the household for some time or thermos jugs. These exist from the outside first seen from a plastic housing in which the Inside is a so-called Dewar vessel. It is about this is a double-walled glass structure, the enclosed air layer ensures that the interior compared to the outside for a long time on the desired Temperature can be maintained. The Dewar is itself very sensitive and always requires a protective covering. Although the outer shell is now in almost any shape, Design and color can be made, so it is in contrast to that usually made of porcelain existing dishes of a coffee table around a foreign body.

Hier nun setzt die vorliegende Erfindung an, durch welche ein doppelwandiger Keramikkörper geschaffen werden soll, der einerseits in seiner äußeren Gestaltung eine solche Form haben kann, wie sie der Designer des entsprechenden Services vorschreibt und andererseits Isoliereigenschaften aufweist, die denen eines Dewar-Gefäßes gleichkommen.This is where the present invention comes in, through which a double-walled ceramic body to be created, the on the one hand have such a shape in its external design can, as the designer of the corresponding service  prescribes and on the other hand has insulating properties that like a Dewar.

Erreicht wird dies durch ein Verfahren der eingangs genannten Art, welches dadurch gekennzeichnet ist, daß eine innere Hülle aus keramischem Material geformt wird, eine äußere Hülle aus keramischem Material separat geformt wird, daß die Innenhülle wenigstens teilweise mit keramischem Fasermaterial umhüllt und dann in die Außenhülle eingesetzt wird und daß das dreiteilige Gebilde (Außenhülle, Fasermaterialumhüllung, Innenhülle) getrocknet, zum ersten Mal gebrannt, glasiert und zum zweiten Mal gebrannt wird.This is achieved by a method of the aforementioned Kind, which is characterized in that an inner shell is formed from ceramic material, an outer shell ceramic material is molded separately that the inner shell at least partially covered with ceramic fiber material and then inserted into the outer shell and that the three-part Structures (outer cover, fiber material cover, inner cover) dried, fired for the first time, glazed and second Times is burned.

Das unmittelbar nach dem Verfahren gemäß der Erfindung hergestellte Produkt ist von seinem Äußeren her nicht von einer Kaffeekanne aus Keramik, insbesondere Porzellan zu unterscheiden. Es weist jedoch eine hochwirksame Isolierung auf, so daß eine scheinbar normale Kaffeekanne den in ihr enthaltenen Kaffee längere Zeit auf der gewünschten Temperatur hält. Der für den Abschluß erforderliche Deckel kann in der üblichen Art und Weise ausgestaltet werden, wie er aus Kunststoff bei sogenannten Thermokannen auf dem Markt ist. Allerdings kann das Verfahren gemäß der vorliegenden Erfindung auch angewendet werden auf die Herstellung eines doppelwandigen Deckels, der dann ebenfalls aus einer Innenkeramik und einer Außenkeramik besteht, die wenigstens bereichsweise durch Keramikfasern voneinander getrennt sind.This immediately after the method according to the invention The manufactured product is not one from the outside Ceramic coffee pot, especially porcelain too differentiate. However, it has highly effective insulation so that an apparently normal coffee pot is in it contained coffee for a long time at the desired temperature holds. The cover required for the closure can be in the usual way it is designed from Plastic is on the market for so-called thermos jugs. However, the method according to the present invention also be applied to the manufacture of a double wall Lid, which then also consists of an inner ceramic and a There is outer ceramic, at least in some areas Ceramic fibers are separated from each other.

Bei dem Verfahren gemäß der Erfindung werden zunächst einmal die beiden Keramik- bzw. Porzellanhüllen aus der geeigneten Masse geformt. Die kleinere Innenhülle wird mit Keramikfasern belegt und in die Außenhülle eingeführt. In diesem Zustand können die Brenn- und Glasiervorgänge durchgeführt werden.In the method according to the invention, first of all the two ceramic or porcelain shells from the appropriate one Mass shaped. The smaller inner shell is made with ceramic fibers  occupied and inserted into the outer shell. In this condition the firing and glazing processes can be carried out.

Bei dem Verfahren gemäß der Erfindung zur Herstellung eines doppelwandigen Isoliergefäßes für Warmgetränke wird zwischen einer äußeren und inneren Hülle aus Keramikmaterial, auch Glaskeramik, ein Isolierwerkstoff mit einer sehr geringen Dichte eingebracht (z. B. keramische Faser), wobei der Isolierstoff als Abstandshalter zwischen Außen- und Innenhülle dient und geeignet ist, die hohen Temperaturen zusammen mit dem Keramikmaterial beim Brand zu überstehen. Weiterhin ist der Isolierwerkstoff geeignet, um zusammen mit dem Keramikmaterial die durch den Sinterungsprozeß (Brand) hervorgerufene Schwindung zu durchlaufen. Bei einem anderen Verfahren gemäß der Erfindung kann die Isolierung nach erfolgter Schwindung der Keramik eingebracht werden. Die stoffgleiche Verbindung der Teile erfolgt dann über die Glasur.In the method according to the invention for producing a double-walled insulating vessel for hot beverages is between an outer and inner shell made of ceramic material, too Glass ceramic, an insulating material with a very low Density introduced (e.g. ceramic fiber), the Insulating material as a spacer between the outer and inner shell serves and is suitable, the high temperatures together with the To survive ceramic material during fire. Furthermore, the Insulating material suitable to together with the ceramic material the one caused by the sintering process (fire) To go through shrinkage. In another method according to the invention can isolation after shrinkage Ceramics are introduced. The same substance connection of Parts are then over the glaze.

Bei einem abgewandelten Verfahren zur Herstellung eines doppelwandigen Isoliergefäßes aus Keramik wird das Gefäß, im wesentlichen bestehend aus einer äußeren und einer inneren Keramikhülle, in mindestens zwei separaten Teilen geformt, und in diese Teile wird vor oder nach dem notwendigen Trockenvorgang der Isolierwerkstoff eingebracht (bei einem Zweibrandprozeß könnte der Isolierwerkstoff auch nach dem ersten Brand (Glühbrand) eingebracht werden) und die beiden Teile anschließend miteinander verbunden und dann dem Brand unterzogen werden, so daß ein isokeramisches Isoliergefäß im wesentlichen ohne Abdichtungsbereiche aus fremden Werkstoffen entsteht. In a modified method for producing a double-walled ceramic insulating vessel, the vessel, in essentially consisting of an outer and an inner Ceramic shell, formed in at least two separate parts, and in these parts is necessary before or after Drying process the insulation material introduced (with a The insulating material could also be used after the two-fire process first fire (incandescent fire) and the two Parts then connected together and then the fire be subjected so that an iso-ceramic insulating vessel in essentially without sealing areas made of foreign materials arises.  

Eine Variante des Isoliergefäßes besteht aus einer äußeren Keramikhülle, einem druckfesten Isolierwerkstoff und einer glasurmäßigen Innenbeschichtung des Isolierwerkstoffes. Die keramische Innenhülle ist somit auf eine minimale Dicke reduziert und der Isolierstoff gibt die innere Form vor.A variant of the insulating vessel consists of an outer one Ceramic sleeve, a pressure-resistant insulating material and one glaze-like inner coating of the insulating material. The ceramic inner shell is therefore to a minimum thickness reduced and the insulating material defines the inner shape.

Die Erfindung wird nachstehend anhand der Zeichnung beispielsweise erläutert.The invention is described below with reference to the drawing for example explained.

Die einzige Figur zeigt eine Querschnittsansicht eines gemäß der Erfindung hergestellten Keramikgefäßes.The single figure shows a cross-sectional view of a according to ceramic vessel produced according to the invention.

Mit 1 ist die keramische Außenhülle und mit 3 ist die keramische Innenhülle bezeichnet. Die zwischen diesen Hüllen liegende Isolierung ist mit 2 bezeichnet.With 1 the ceramic outer shell and with 3 the ceramic inner shell is designated. The insulation between these shells is designated by 2 .

Claims (1)

Verfahren zur Herstellung eines doppelwandigen Isoliergefäßes für Haushaltszwecke, dadurch gekennzeichnet, daß eine innere Hülle aus keramischem Material geformt wird, eine äußere Hülle aus keramischem Material separat geformt wird, daß die Innenhülle wenigstens teilweise mit keramischem Fasermaterial umhüllt und dann in die Außenhülle eingesetzt wird und daß das dreiteilige Gebilde (Außenhülle, Fasermaterialumhüllung, Innenhülle) getrocknet, zum ersten Mal gebrannt, glasiert und zum zweiten Mal gebrannt wird.Method for producing a double-walled insulating vessel for household purposes, characterized in that an inner shell is formed from ceramic material, an outer shell is formed separately from ceramic material, the inner shell is at least partially covered with ceramic fiber material and then inserted into the outer shell and in that the three-part structure (outer shell, fiber material covering, inner shell) is dried, fired for the first time, glazed and fired for the second time.
DE19944418318 1994-05-26 1994-05-26 Domestic double-walled insulating ceramic vessel Ceased DE4418318A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19944418318 DE4418318A1 (en) 1994-05-26 1994-05-26 Domestic double-walled insulating ceramic vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944418318 DE4418318A1 (en) 1994-05-26 1994-05-26 Domestic double-walled insulating ceramic vessel

Publications (1)

Publication Number Publication Date
DE4418318A1 true DE4418318A1 (en) 1995-11-30

Family

ID=6518981

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19944418318 Ceased DE4418318A1 (en) 1994-05-26 1994-05-26 Domestic double-walled insulating ceramic vessel

Country Status (1)

Country Link
DE (1) DE4418318A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6845811B2 (en) 2002-05-15 2005-01-25 Howmet Research Corporation Reinforced shell mold and method
WO2006126197A1 (en) * 2005-05-24 2006-11-30 Assaf Nachum Mug
FR3046722A1 (en) * 2016-01-15 2017-07-21 Chantal Renaud CERAMIC DISHWASHER ARTICLE CARRYING A MINERAL LOAD

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102101B2 (en) * 1971-01-16 1977-03-03 Porzellanfabrik Schirnding Ag, 8591 Schirnding Heat retentive double walled drinking vessel - has inner and outer ceramic vessels with glazed seal at upper rim
DE2954516C2 (en) * 1979-10-04 1987-04-09 Peter Dr. Laxenburg At Hari

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102101B2 (en) * 1971-01-16 1977-03-03 Porzellanfabrik Schirnding Ag, 8591 Schirnding Heat retentive double walled drinking vessel - has inner and outer ceramic vessels with glazed seal at upper rim
DE2954516C2 (en) * 1979-10-04 1987-04-09 Peter Dr. Laxenburg At Hari

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6845811B2 (en) 2002-05-15 2005-01-25 Howmet Research Corporation Reinforced shell mold and method
WO2006126197A1 (en) * 2005-05-24 2006-11-30 Assaf Nachum Mug
FR3046722A1 (en) * 2016-01-15 2017-07-21 Chantal Renaud CERAMIC DISHWASHER ARTICLE CARRYING A MINERAL LOAD

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