GB2372248A - Lightweight kiln furniture - Google Patents

Lightweight kiln furniture Download PDF

Info

Publication number
GB2372248A
GB2372248A GB0104029A GB0104029A GB2372248A GB 2372248 A GB2372248 A GB 2372248A GB 0104029 A GB0104029 A GB 0104029A GB 0104029 A GB0104029 A GB 0104029A GB 2372248 A GB2372248 A GB 2372248A
Authority
GB
United Kingdom
Prior art keywords
item
kiln furniture
lightweight filler
density
kiln
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.)
Granted
Application number
GB0104029A
Other versions
GB2372248B (en
GB0104029D0 (en
Inventor
John Michael Gallimore
Edward Shaw
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.)
DYSON IND Ltd
Original Assignee
DYSON IND Ltd
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 IND Ltd filed Critical DYSON IND Ltd
Priority to GB0104029A priority Critical patent/GB2372248B/en
Publication of GB0104029D0 publication Critical patent/GB0104029D0/en
Priority to PCT/GB2002/000704 priority patent/WO2002066916A2/en
Priority to EP20020700435 priority patent/EP1364178A2/en
Publication of GB2372248A publication Critical patent/GB2372248A/en
Application granted granted Critical
Publication of GB2372248B publication Critical patent/GB2372248B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Kiln furniture is formed from a composition which comprises a refractory lightweight filler such that the density of the furniture is between 1.0 and 1.4 g/cc. The filler may comprise an amorphous aluminosilicate and mullite and may be added in amount 15-55 % by wt.

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 1800oC.
Preferably the lightweight filler is a fused aluminosilicate comprising the following inseparable phases: aluminosilicate (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, mullit, 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
Addition (% by weight) Bulk Density (g/cc) Nil 1. 85 15 1. 4 20 1. 34 25 1. 24 301. 21 35 1. 16 451. 06 551. 02 The invention is illustrated by the following examples : EXAMPLE 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 (6)

  1. 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. 2. An item according to Claim 1, containing from about 15% to about 55% by weight of the lightweight filler.
  3. 3. An item according to any preceding Claim, wherein the lightweight filler is a fused aluminosilicate.
  4. 4. An item according to Claim 3, comprising amorphous aluminosilicate and mullite.
  5. 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. 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.
GB0104029A 2001-02-19 2001-02-19 Kiln furniture Expired - Fee Related GB2372248B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0104029A GB2372248B (en) 2001-02-19 2001-02-19 Kiln furniture
PCT/GB2002/000704 WO2002066916A2 (en) 2001-02-19 2002-02-19 Kiln furniture
EP20020700435 EP1364178A2 (en) 2001-02-19 2002-02-19 Kiln furniture

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
GB0104029D0 GB0104029D0 (en) 2001-04-04
GB2372248A true GB2372248A (en) 2002-08-21
GB2372248B GB2372248B (en) 2003-12-24

Family

ID=9909024

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0104029A Expired - Fee Related GB2372248B (en) 2001-02-19 2001-02-19 Kiln furniture

Country Status (3)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010361A1 (en) * 2007-07-18 2009-01-22 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa A ceramic material and slabs obtained with the ceramic material
WO2009156138A1 (en) * 2008-06-24 2009-12-30 Aldero S.N.C. Di Sciarrini Pre-fired base for the firing of ceramic articles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1559159A (en) * 1977-09-20 1980-01-16 Babcock & Wilcox Co Low mass high alumina-silica refractory mixes and methods of producing low mass high alumina-silica products
GB2202842A (en) * 1987-02-18 1988-10-05 Nichias Corp Lightweight refractory
JPH01176276A (en) * 1987-12-28 1989-07-12 Ibiden Co Ltd Jig for sintering electronic parts
GB2216115A (en) * 1987-12-02 1989-10-04 Duriron Co Kiln furniture for the firing of ceramic articles
EP0395203A2 (en) * 1989-03-28 1990-10-31 Foseco International Limited Refractory supports

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE519743A (en) *
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
JP2577147B2 (en) * 1991-09-30 1997-01-29 日本碍子株式会社 Method for manufacturing ceramic honeycomb structure
GB9124403D0 (en) * 1991-11-16 1992-01-08 Foseco Int Ceramic material
EP0931778B1 (en) * 1998-01-07 2002-04-10 VIESSMANN WERKE GmbH & CO. Refractory article
WO2001040136A2 (en) * 1999-12-02 2001-06-07 Foseco International Limited Refractory insulating construction element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1559159A (en) * 1977-09-20 1980-01-16 Babcock & Wilcox Co Low mass high alumina-silica refractory mixes and methods of producing low mass high alumina-silica products
GB2202842A (en) * 1987-02-18 1988-10-05 Nichias Corp Lightweight refractory
GB2216115A (en) * 1987-12-02 1989-10-04 Duriron Co Kiln furniture for the firing of ceramic articles
JPH01176276A (en) * 1987-12-28 1989-07-12 Ibiden Co Ltd Jig for sintering electronic parts
EP0395203A2 (en) * 1989-03-28 1990-10-31 Foseco International Limited Refractory supports

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WPI abstract 1989-244389 & JP01-176276A *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010361A1 (en) * 2007-07-18 2009-01-22 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa A ceramic material and slabs obtained with the ceramic material
WO2009156138A1 (en) * 2008-06-24 2009-12-30 Aldero S.N.C. Di Sciarrini Pre-fired base for the firing of ceramic articles

Also Published As

Publication number Publication date
WO2002066916A2 (en) 2002-08-29
WO2002066916A3 (en) 2002-10-17
GB2372248B (en) 2003-12-24
EP1364178A2 (en) 2003-11-26
GB0104029D0 (en) 2001-04-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050219