WO2002066917A1 - Kiln furniture or the like - Google Patents

Kiln furniture or the like Download PDF

Info

Publication number
WO2002066917A1
WO2002066917A1 PCT/GB2002/000723 GB0200723W WO02066917A1 WO 2002066917 A1 WO2002066917 A1 WO 2002066917A1 GB 0200723 W GB0200723 W GB 0200723W WO 02066917 A1 WO02066917 A1 WO 02066917A1
Authority
WO
WIPO (PCT)
Prior art keywords
lithium compound
item
kiln
kiln furniture
firing
Prior art date
Application number
PCT/GB2002/000723
Other languages
French (fr)
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 EP02712093A priority Critical patent/EP1364179A1/en
Publication of WO2002066917A1 publication Critical patent/WO2002066917A1/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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/101—Refractories from grain sized mixtures
    • C04B35/1015—Refractories from grain sized mixtures containing refractory metal compounds other than those covered by C04B35/103 - C04B35/106
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • C04B35/19—Alkali metal aluminosilicates, e.g. spodumene
    • 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

Definitions

  • the invention relates to kiln furniture. More particularly the invention relates to kiln furniture for use in supporting articles to be fired in a kiln.
  • an item of kiln furniture formed of a composition including a lithium compound.
  • 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 including a lithium compound, and then firing the article in a kiln.
  • the lithium compound may be a simple derivative such as lithium oxide. It is preferred that the lithium compound is a lithium aluminosilicate, more preferably it is petalite Li 2 O AI 2 O 3 .8SiO 2 and/or spodumene (Li 2 O AI 2 O 3 .4SiO 2 ). Mixtures may be used.
  • the item is made from a composition including the lithium compound. Preferably the proportion of the lithium compound is between 2% and 25% by weight, preferably about 10% by weight.
  • 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.
  • refractory fibres such as alumina fibres, alumino silicate fibres, calcium silicate fibres, silicon carbide whiskers; and the like may be present.
  • the dry ingredients of the composition are mixed, water is added, and the resulting granulate is pressed with metal dies to form the desired shape. This is then dried and fired.
  • the article of kiln furniture may be any type of support, spacer, batt, profile setter, cup ring or the like.
  • Water is added to form a granulate which was pressed in metal dies to form an item of kiln furniture.
  • the shaped item was used to support a cup when that was fired.
  • the assembly of cup and support were subjected to firing in a kiln.
  • the cooled assembly was removed from the kiln and there was no sticking of the cup to the support.

Abstract

A lithium compound is included in a composition which is fired to form an item of kiln furniture, so that there is no need for any coating, that reduces the sticking of ceramic articles to the supporting item of the kiln furnace.

Description

KILN FURNITURE OR THE LIKE
The invention relates to kiln furniture. More particularly the invention relates to kiln furniture for use in supporting articles to be fired in a kiln.
During firing of ceramic articles, e.g. tableware in a kiln there is a tendency for the ceramic articles to stick to the supporting item of kiln furniture. Normally this is resolved by applying some type of coating material. This is usually sprayed and needs reapplying at intervals. It is one object of this invention to reduce and ideally eliminate the need for any coating.
According to the invention in one aspect there is provided an item of kiln furniture, formed of a composition including a lithium compound.
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 including a lithium compound, and then firing the article in a kiln.
The lithium compound may be a simple derivative such as lithium oxide. It is preferred that the lithium compound is a lithium aluminosilicate, more preferably it is petalite Li2O AI2O3.8SiO2 and/or spodumene (Li2O AI2O3.4SiO2). Mixtures may be used. The item is made from a composition including the lithium compound. Preferably the proportion of the lithium compound is between 2% and 25% by weight, preferably about 10% by weight.
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.
Other ingredients may be present in the composition provided that they do not mar the effectiveness of the item. For example, refractory fibres such as alumina fibres, alumino silicate fibres, calcium silicate fibres, silicon carbide whiskers; and the like may be present.
To prepare the item the dry ingredients of the composition are mixed, water is added, and the resulting granulate is pressed with metal dies to form the desired shape. This is then dried and fired.
The article of kiln furniture may be any type of support, spacer, batt, profile setter, cup ring or the like.
In order that the invention may be well understood it will now be described by way of illustration with reference to the following example in which parts are by weight. Example I
The following were mixed together:
alumina 40 ball clay 33 magnesium carbonate 17 petalite 10
100
Water is added to form a granulate which was pressed in metal dies to form an item of kiln furniture. The shaped item was used to support a cup when that was fired. The assembly of cup and support were subjected to firing in a kiln. The cooled assembly was removed from the kiln and there was no sticking of the cup to the support.

Claims

1. An item of kiln furniture, formed of a composition including a lithium compound.
2. An item according to Claim 1 , containing 2% to 25% by weight of the lithium compound.
3. An item according to Claim 2, containing about 10% of the lithium compound.
4. An item according to any preceding Claim, wherein the lithium compound is lithium oxide.
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 lithium compound, and then firing the article in the kiln.
6. A method of making an item of kiln furniture comprising mixing a refractory component, a binder and a lithium compound, adding water to form a granulate, pressing an article, drying and firing the shape.
7. A method according to Claim 6, wherein the lithium compound makes up 2% to 25%o by weight of the mixture.
8. A method according to Claim 7, wherein the lithium compound comprises 10% by weight of the mixture.
9. A method according to Claims 6 to 8 , wherein the lithium compound is petalite or spodumene.
10. A method according to any of Claims 6 to 9, wherein the refractory component is alumina and the binder is ball clay, and magnesium carbonate is added.
PCT/GB2002/000723 2001-02-19 2002-02-19 Kiln furniture or the like WO2002066917A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02712093A EP1364179A1 (en) 2001-02-19 2002-02-19 Kiln furniture or the like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0104027A GB2372247B (en) 2001-02-19 2001-02-19 Kiln furniture or the like
GB0104027.8 2001-02-19

Publications (1)

Publication Number Publication Date
WO2002066917A1 true WO2002066917A1 (en) 2002-08-29

Family

ID=9909022

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/000723 WO2002066917A1 (en) 2001-02-19 2002-02-19 Kiln furniture or the like

Country Status (3)

Country Link
EP (1) EP1364179A1 (en)
GB (1) GB2372247B (en)
WO (1) WO2002066917A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112028650A (en) * 2020-09-03 2020-12-04 深圳市飞粤新材料科技有限公司 Sagger for lithium ion battery anode material
CN115159995B (en) * 2022-05-27 2023-12-19 佛山市陶本科技有限公司 Backing plate for firing foamed ceramic heat-insulating and decorating integrated plate, preparation method thereof and kiln furniture

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108046783B (en) * 2017-12-12 2020-10-16 浙江大学 Cordierite-corundum hollow sphere sagger, preparation method and application thereof
CN115490503B (en) * 2022-10-25 2023-05-12 娄底市海天特种陶瓷有限公司 Ceramic composite material and fuse porcelain tube

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623713A (en) * 1970-04-06 1971-11-30 Norman E Denison Kiln car deck stool
US3818087A (en) * 1968-05-03 1974-06-18 C Smyser Process of making thermal shack-resistant ceramic ware
US4432798A (en) * 1980-12-16 1984-02-21 The Duriron Company, Inc. Aluminosilicate hydrogel bonded aggregate articles
DE3816892A1 (en) * 1987-12-02 1989-06-15 Duriron Co BURN TOOLS TO BURN CERAMICS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB865872A (en) * 1958-02-12 1961-04-19 Corning Glass Works Low thermal expansion ceramic body and a method of making it
GB964807A (en) * 1960-09-13 1964-07-22 Otto & Co Gmbh Dr C Improvements in or relating to the production of refractories
GB1032744A (en) * 1962-03-20 1966-06-15 Gibbons Dudley Ltd Improvements relating to ceramic articles and methods of producing same
US4429003A (en) * 1981-10-05 1984-01-31 Norton Co. Protective coating for porous refractories
JPH11240748A (en) * 1998-02-27 1999-09-07 Taiheiyo Cement Corp Production of oxide ceramic
JPH11322411A (en) * 1998-05-19 1999-11-24 Taiheiyo Cement Corp Production of ceramic

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818087A (en) * 1968-05-03 1974-06-18 C Smyser Process of making thermal shack-resistant ceramic ware
US3623713A (en) * 1970-04-06 1971-11-30 Norman E Denison Kiln car deck stool
US4432798A (en) * 1980-12-16 1984-02-21 The Duriron Company, Inc. Aluminosilicate hydrogel bonded aggregate articles
DE3816892A1 (en) * 1987-12-02 1989-06-15 Duriron Co BURN TOOLS TO BURN CERAMICS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112028650A (en) * 2020-09-03 2020-12-04 深圳市飞粤新材料科技有限公司 Sagger for lithium ion battery anode material
CN115159995B (en) * 2022-05-27 2023-12-19 佛山市陶本科技有限公司 Backing plate for firing foamed ceramic heat-insulating and decorating integrated plate, preparation method thereof and kiln furniture

Also Published As

Publication number Publication date
GB2372247A (en) 2002-08-21
GB0104027D0 (en) 2001-04-04
EP1364179A1 (en) 2003-11-26
GB2372247B (en) 2004-03-10

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