WO2002066916A2 - Kiln furniture - Google Patents

Kiln furniture Download PDF

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Publication number
WO2002066916A2
WO2002066916A2 PCT/GB2002/000704 GB0200704W WO02066916A2 WO 2002066916 A2 WO2002066916 A2 WO 2002066916A2 GB 0200704 W GB0200704 W GB 0200704W WO 02066916 A2 WO02066916 A2 WO 02066916A2
Authority
WO
WIPO (PCT)
Prior art keywords
item
kiln furniture
lightweight filler
density
kiln
Prior art date
Application number
PCT/GB2002/000704
Other languages
French (fr)
Other versions
WO2002066916A3 (en
Inventor
John Michael Gallimore
Edward Shaw
Original Assignee
Dyson Industries Limited
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 Dyson Industries Limited filed Critical Dyson Industries Limited
Priority to EP20020700435 priority Critical patent/EP1364178A2/en
Publication of WO2002066916A2 publication Critical patent/WO2002066916A2/en
Publication of WO2002066916A3 publication Critical patent/WO2002066916A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the invention relates to kiln furniture. More particularly the invention relates to kiln furniture for use in supporting articles, including, but not limited to tableware and the like, to be fired in a kiln.
  • an item of kiln furniture formed of a composition comprising a refractory component and a binder, characterised by the presence of a lightweight filler which is refractory enough to withstand firing and whereby the density of the item ranges from about 1.0 to about 1.40.
  • a method of firing a ceramic article in a kiln comprising mounting the article on a support item of kiln furniture formed from a composition as just defined and then firing the article in a kiln.
  • the lightweight filler is provided by hollow refractory spheres such as fly ash floaters, silica fume and the like. It is preferred to use hollow microspheres of high compressive strength and which have a specific gravity 0.6 to 0.8g/cc and a melting point of 1600 to 1800°C.
  • the lightweight filler is a fused aluminosilicate comprising the following inseparable phases: aiuminosilk ;ate (amorphous) 65 - 80 mullite 25 - 35 quartz 0 - 1 calcite 0 - 1
  • the composition preferably comprises a particulate refractory component, and a binder.
  • the refractory component may be a refractory oxide, carbide, nitrite, boride, silicate, examples being alumina, silicon carbide, cordierite, magnesia, mullite, zirconia; or the like.
  • the binder may be ball clay or the like. If the furniture is to be formed of cordierite as is preferred, a reactive filler may be present, e.g. a source of magnesium such as magnesium carbonate.
  • Water is added to form a granulate which was pressed in metal dies to form an item of kiln furniture.
  • the green article was removed and fired to form an item of kiln furniture.
  • the item was essentially cordierite.
  • the density was 1.40.
  • the shaped item was used to support an article when that was fired.
  • Example I The method of Example I was repeated but 55 parts of lightweight filler were used to provide an item which had a density of 1.02.

Abstract

An item of kiln furniture is formed of a composition including a lightweight refractory filler. The use of the lightweight filler reduces the density but without comprising the other properties of the kiln furniture.

Description

KILN FURNITURE
The invention relates to kiln furniture. More particularly the invention relates to kiln furniture for use in supporting articles, including, but not limited to tableware and the like, to be fired in a kiln.
According to the invention in one aspect there is provided an item of kiln furniture, formed of a composition comprising a refractory component and a binder, characterised by the presence of a lightweight filler which is refractory enough to withstand firing and whereby the density of the item ranges from about 1.0 to about 1.40.
According to the invention in another aspect there is provided a method of firing a ceramic article in a kiln, the method comprising mounting the article on a support item of kiln furniture formed from a composition as just defined and then firing the article in a kiln.
Preferably the lightweight filler is provided by hollow refractory spheres such as fly ash floaters, silica fume and the like. It is preferred to use hollow microspheres of high compressive strength and which have a specific gravity 0.6 to 0.8g/cc and a melting point of 1600 to 1800°C.
Preferably the lightweight filler is a fused aluminosilicate comprising the following inseparable phases: aiuminosilk ;ate (amorphous) 65 - 80 mullite 25 - 35 quartz 0 - 1 calcite 0 - 1
The composition preferably comprises a particulate refractory component, and a binder. The refractory component may be a refractory oxide, carbide, nitrite, boride, silicate, examples being alumina, silicon carbide, cordierite, magnesia, mullite, zirconia; or the like. The binder may be ball clay or the like. If the furniture is to be formed of cordierite as is preferred, a reactive filler may be present, e.g. a source of magnesium such as magnesium carbonate.
The use of the lightweight filler reduces the density but without compromising the other properties of the kiln furniture. The following table shows the ratio of rate of addition and the effect on bulk density:-
TABLE I
Figure imgf000003_0001
The invention is illustrated by the following examples:
EXAMPLE 1
The following were mixed together:
grog 40 ball clay 33 magnesium carbonate 12 lightweight filler 15
100
Water is added to form a granulate which was pressed in metal dies to form an item of kiln furniture. The green article was removed and fired to form an item of kiln furniture. The item was essentially cordierite. The density was 1.40. The shaped item was used to support an article when that was fired.
EXAMPLE II
The method of Example I was repeated but 55 parts of lightweight filler were used to provide an item which had a density of 1.02.

Claims

1. An item of kiln furniture, formed of a composition including a lightweight filler which is refractory and which adjusts the density to between about 1.0 and 1.40.
2. An item according to Claim 1 , containing from about 15% to about 55% by weight of the lightweight filler.
3. An item according to any preceding Claim, wherein the lightweight filler is a fused aluminosilicate.
4. An item according to Claim 3, comprising amorphous aluminosilicate and mullite.
5. A method of firing a ceramic kiln, the method comprising mounting the article on a support item of kiln furniture formed from a composition including a lightweight filler which is refractory and which adjusts the density to between about 1 and about 1.40.
6. A method of making an item of kiln furniture having a density of from about 1.0 to about 1.40, the method comprising mixing refractory component, a binder and a lightweight filler, adding water to form a granulate, pressing, drying and firing the shape.
PCT/GB2002/000704 2001-02-19 2002-02-19 Kiln furniture WO2002066916A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20020700435 EP1364178A2 (en) 2001-02-19 2002-02-19 Kiln furniture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0104029A GB2372248B (en) 2001-02-19 2001-02-19 Kiln furniture
GB0104029.4 2001-02-19

Publications (2)

Publication Number Publication Date
WO2002066916A2 true WO2002066916A2 (en) 2002-08-29
WO2002066916A3 WO2002066916A3 (en) 2002-10-17

Family

ID=9909024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/000704 WO2002066916A2 (en) 2001-02-19 2002-02-19 Kiln furniture

Country Status (3)

Country Link
EP (1) EP1364178A2 (en)
GB (1) GB2372248B (en)
WO (1) WO2002066916A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRE20070086A1 (en) * 2007-07-18 2009-01-19 Sacmi CERAMIC MATERIAL AND SHEETS OBTAINED WITH SUCH CERAMIC MATERIAL
ITMC20080123A1 (en) * 2008-06-24 2008-09-23 Aldero S N C EARLY BASE FOR COOKING CERAMIC ITEMS.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE519743A (en) *
US4812424A (en) * 1987-12-02 1989-03-14 The Duriron Company, Inc. Kiln furniture for the firing of ceramic articles
US4814300A (en) * 1987-12-02 1989-03-21 The Duriron Company, Inc. Porous ceramic shapes, compositions for the preparation thereof, and method for producing same
EP0543581A1 (en) * 1991-11-16 1993-05-26 Foseco International Limited Ceramic material
EP0931778A1 (en) * 1998-01-07 1999-07-28 VIESSMANN WERKE GmbH & CO. Refractory article
WO2001040136A2 (en) * 1999-12-02 2001-06-07 Foseco International Limited Refractory insulating construction element

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117055A (en) * 1977-09-20 1978-09-26 The Babcock & Wilcox Company Low mass, high alumina-silica refractories
JPS63206367A (en) * 1987-02-18 1988-08-25 ニチアス株式会社 Lightweight refractories and manufacture
JPH01176276A (en) * 1987-12-28 1989-07-12 Ibiden Co Ltd Jig for sintering electronic parts
GB8906916D0 (en) * 1989-03-28 1989-05-10 Foseco Int Refractory supports
JP2577147B2 (en) * 1991-09-30 1997-01-29 日本碍子株式会社 Method for manufacturing ceramic honeycomb structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE519743A (en) *
US4812424A (en) * 1987-12-02 1989-03-14 The Duriron Company, Inc. Kiln furniture for the firing of ceramic articles
US4814300A (en) * 1987-12-02 1989-03-21 The Duriron Company, Inc. Porous ceramic shapes, compositions for the preparation thereof, and method for producing same
EP0543581A1 (en) * 1991-11-16 1993-05-26 Foseco International Limited Ceramic material
EP0931778A1 (en) * 1998-01-07 1999-07-28 VIESSMANN WERKE GmbH & CO. Refractory article
WO2001040136A2 (en) * 1999-12-02 2001-06-07 Foseco International Limited Refractory insulating construction element

Also Published As

Publication number Publication date
WO2002066916A3 (en) 2002-10-17
GB0104029D0 (en) 2001-04-04
GB2372248A (en) 2002-08-21
GB2372248B (en) 2003-12-24
EP1364178A2 (en) 2003-11-26

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