CN101691296B - Zircon corundum ceramics - Google Patents
Zircon corundum ceramics Download PDFInfo
- Publication number
- CN101691296B CN101691296B CN200910192810A CN200910192810A CN101691296B CN 101691296 B CN101691296 B CN 101691296B CN 200910192810 A CN200910192810 A CN 200910192810A CN 200910192810 A CN200910192810 A CN 200910192810A CN 101691296 B CN101691296 B CN 101691296B
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- Prior art keywords
- zircon corundum
- percent
- ceramic
- mullite
- abrasion
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Abstract
The invention discloses a zircon corundum ceramic, which is characterized in that the zircon corundum ceramic is prepared from the following raw materials in percentage by weight: 30 to 33 percent of ZrO2, 48 to 52 percent of mullite, 15 to 18 percent of Al2O3, 2 to 5 percent of talcum, 0.5 to 0.7 percent of rhodium sesquioxide and 1.0 to 1.57 percent of dispersant. The zircon corundum-mullite composite abrasion-resistant ceramic provided by the invention contains considerable amount of mullite phase with low thermal expansion coefficient, has excellent shock resistance, can be used for high-temperature parts, and particularly can be used for frequently cold and hot alternated parts; the zircon corundum ceramic is toughened through zirconia, and is subjected to thermal treatment at a cooling stage so that the content of glass phase is reduced and the abrasion resistance of the zircon corundum ceramic is improved; and the sintering temperature of the zircon corundum ceramics of the invention is about 200 DEG C lower than that of the conventional abrasion-resistant ceramic, the production energy consumption of the abrasion-resistant ceramic is greatly reduced, and the zircon corundum ceramic contributes to energy conservation and emission reduction.
Description
Technical field
The present invention relates to a kind of pottery.
Background technology
Traditional pottery is because thermal expansivity is big, and poor toughness wears no resistance; Easily broken under hot environment, so its Application Areas receives very big restriction, can not be used for high temperature position; Especially can not be used to the frequent position that colds and heat succeed each other; And the firing temperature of traditional wear-resistant ceramic is high, thereby has increased the production energy consumption of wear-resistant ceramic, has improved the waste discharge in the ceramic sintering process.
Summary of the invention
In order to overcome the deficiency of prior art, the present invention provides that a kind of thermal expansivity is low, good toughness, Zircon corundum ceramics that wear resistance is good.
The technical solution adopted for the present invention to solve the technical problems is:
Zircon corundum ceramics is characterized in that it is to be processed by following raw materials in percentage by weight: ZrO
230-33%, mullite 48-52%, Al
2O
315-18%, talcum 2-5%, rhodium sesquioxide 0.5-0.7%, dispersion agent 1.0-1.57%.
Above-mentioned dispersion agent is colourless or weak yellow liquid, and it can directly be buied from market, the solids content of this dispersion agent>=25.0%, and free monomer is (with CH
2=CH-COOH meter)≤and pH≤2 of 1.25%, 10% aqueous solution, density (20 ℃)>=1.08g/cm3, limiting viscosity (30 ℃) 0.055-0.10dl/g.
Mullite is a series of mineral general designations of being made up of aluminosilicate, and this type mineral are relatively more rare.Mullite is the mineral that aluminosilicate at high temperature generates, and can form mullite during manual work heating aluminosilicate.Natural mullite crystal is elongated needle-like and is radiation bunch shape.The mullite ore deposit is used to produce high-temperature refractory.Mullite is Al
2O
3-SiO
2The binary compound of unique stable existence under the normal pressure in the two component system, chemical formula is 3Al
2O
3-2SiO
2, natural mullite is considerably less, usually with synthetic such as sintering process or electric smelting methods.
Zircon corundum ceramics of the present invention can adopt traditional ceramic sintering method to burn till, as adopts following method to burn till: and the buying raw material advances the batching-ball milling-mist projection granulating of factory-in proportion-sugar machine and adds dispersion agent granulation-shaped by fluid pressure-drying room oven dry-loading of kiln and burn till-and test package puts in storage.
The invention has the beneficial effects as follows: the zircon corundum that provides of the present invention-mullite complex abrasion-proof pottery; Owing to contain a considerable amount of low thermal coefficient of expansion mullite phases; Its thermal shock resistance is superior, can be used in high temperature partly, especially can be used in the frequent position that colds and heat succeed each other; This Zircon corundum ceramics is through Zirconium oxide plasticizing, and the thermal treatment through colling stages, reduced glassy phase content, and its wear resistance is improved; The firing temperature of Zircon corundum ceramics of the present invention is lower about 200 ℃ than traditional wear-resistant ceramic, has reduced the production energy consumption of wear-resistant ceramic significantly, for energy-saving and emission-reduction contribute.
Below in conjunction with embodiment the present invention is further specified.
Embodiment
Embodiment 1
Take by weighing following raw material: ZrO in proportion
230kg, mullite 51kg, Al
2O
315kg, talcum 2kg, rhodium sesquioxide 0.7kg, dispersion agent 1.3kg, raw materials mix ball milling that will be except that dispersion agent, mist projection granulating; Encourage the particle that mist projection granulating obtains then and put into sugar grain machine, add the dispersion agent granulation again, again through shaped by fluid pressure; The drying room oven dry; Loading of kiln is burnt till, and promptly makes Zircon corundum ceramics of the present invention, gets final product through the test package warehouse-in again.
Embodiment 2
Take by weighing following raw material: ZrO in proportion
232kg, mullite 48kg, Al
2O
315kg, talcum 3kg, rhodium sesquioxide 0.5kg, dispersion agent 1.5kg, raw materials mix ball milling that will be except that dispersion agent, mist projection granulating; Encourage the particle that mist projection granulating obtains then and put into sugar grain machine, add the dispersion agent granulation again, again through shaped by fluid pressure; The drying room oven dry; Loading of kiln is burnt till, and promptly makes Zircon corundum ceramics of the present invention, gets final product through the test package warehouse-in again.
Embodiment 3
Take by weighing following raw material: ZrO in proportion
233kg, mullite 50kg, Al
2O
318kg, talcum 4kg, rhodium sesquioxide 0.6kg, dispersion agent 1.2kg, raw materials mix ball milling that will be except that dispersion agent, mist projection granulating; Encourage the particle that mist projection granulating obtains then and put into sugar grain machine, add the dispersion agent granulation again, again through shaped by fluid pressure; The drying room oven dry; Loading of kiln is burnt till, and promptly makes Zircon corundum ceramics of the present invention, gets final product through the test package warehouse-in again.
The Zircon corundum ceramics of getting embodiment 1 preparation carries out traditional performance to be measured, and obtains following parameter:
Volume density g/cm3 >=3.6
Cold crushing strength MPa >=400
Wear resistance cm3≤0.5
Rockwell hardness HRA >=80
Room temperature-1200 ℃ average coefficient of linear expansion a * 10-61/ ℃≤7.4
This shows that Zircon corundum ceramics of the present invention has superior thermal shock resistance, can be used in high temperature partly, especially can be used in the frequent position that colds and heat succeed each other, wear resistance is improved.
Claims (2)
1. Zircon corundum ceramics is characterized in that it is to be processed by following raw materials in percentage by weight: ZrO
230-33%, mullite 48-52%, Al
2O
315-18%, talcum 2-5%, rhodium sesquioxide 0.5-0.7%, dispersion agent 1.0-1.57%, and the weight percentage sum of above-mentioned each raw material is 100%.
2. Zircon corundum ceramics according to claim 1 is characterized in that said dispersion agent is colourless or weak yellow liquid, and the solids content of this dispersion agent>=25.0% is with CH
2Density>=the 1.08g/cm of pH≤2,20 of=CH-COOH meter free monomer≤1.25%, 10% aqueous solution ℃
3, 30 ℃ limiting viscosity is 0.055-0.10dl/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910192810A CN101691296B (en) | 2009-09-24 | 2009-09-24 | Zircon corundum ceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910192810A CN101691296B (en) | 2009-09-24 | 2009-09-24 | Zircon corundum ceramics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101691296A CN101691296A (en) | 2010-04-07 |
| CN101691296B true CN101691296B (en) | 2012-09-05 |
Family
ID=42080035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910192810A Expired - Fee Related CN101691296B (en) | 2009-09-24 | 2009-09-24 | Zircon corundum ceramics |
Country Status (1)
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104557061B (en) * | 2013-10-15 | 2018-12-14 | 济南圣泉倍进陶瓷过滤器有限公司 | Straight-bore ceramic filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091116A (en) * | 1993-06-15 | 1994-08-24 | 北京科技大学 | A kind of composite refractory material based on zirconium corundum, mullite and boron nitride |
| CN1162580A (en) * | 1996-12-23 | 1997-10-22 | 唐山市燕山产业有限公司 | Wear resistant sintered zirconium boule composite and manufacture thereof |
| CN1281832A (en) * | 1999-07-27 | 2001-01-31 | 湖南新华联特种材料有限公司 | Abrasion-resistant corundum ceramics |
| CN1303834A (en) * | 1999-11-22 | 2001-07-18 | 冶金工业部洛阳耐火材料研究院 | Corundum-mullite product |
| CN101219906A (en) * | 2008-02-02 | 2008-07-16 | 柳州钢铁股份有限公司 | Zirconium corundum porzite flame-proof sphere |
-
2009
- 2009-09-24 CN CN200910192810A patent/CN101691296B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091116A (en) * | 1993-06-15 | 1994-08-24 | 北京科技大学 | A kind of composite refractory material based on zirconium corundum, mullite and boron nitride |
| CN1162580A (en) * | 1996-12-23 | 1997-10-22 | 唐山市燕山产业有限公司 | Wear resistant sintered zirconium boule composite and manufacture thereof |
| CN1281832A (en) * | 1999-07-27 | 2001-01-31 | 湖南新华联特种材料有限公司 | Abrasion-resistant corundum ceramics |
| CN1303834A (en) * | 1999-11-22 | 2001-07-18 | 冶金工业部洛阳耐火材料研究院 | Corundum-mullite product |
| CN101219906A (en) * | 2008-02-02 | 2008-07-16 | 柳州钢铁股份有限公司 | Zirconium corundum porzite flame-proof sphere |
Non-Patent Citations (1)
| Title |
|---|
| 钟香崇等.锆刚玉莫来石材料的热机械性能.《硅酸盐通报》.1999,(第4期), * |
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| CN101691296A (en) | 2010-04-07 |
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| CB03 | Change of inventor or designer information |
Inventor after: Xu Zhenxiang Inventor after: Cheng Guosheng Inventor after: Pan Qixiong Inventor before: Pan Qixiong |
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Free format text: CORRECT: INVENTOR; FROM: PAN QIXIONG TO: XU ZHENXIANG CHENG GUOSHENG PAN QIXIONG |
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