CN102584185A - Thin-walled ceramic roller as well as raw material scheme and method to manufacture same - Google Patents
Thin-walled ceramic roller as well as raw material scheme and method to manufacture same Download PDFInfo
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- CN102584185A CN102584185A CN2012100516285A CN201210051628A CN102584185A CN 102584185 A CN102584185 A CN 102584185A CN 2012100516285 A CN2012100516285 A CN 2012100516285A CN 201210051628 A CN201210051628 A CN 201210051628A CN 102584185 A CN102584185 A CN 102584185A
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Abstract
The invention relates to a thin-walled ceramic roller as well as a raw material scheme and a method to manufacture the same. The ceramic roller is characterized by comprising the chemical components by weight percentage: 70%-73% of aluminum oxide, 20%-23% of silicon oxide, 4%-6% of zirconium oxide and 0-0.4% of ferric oxide. Pulverized corundum, kaolin, aluminum oxide micro powder, zirconium silicate, calcined mullite powder and methylcellulose are adopted as the main raw materials and the ceramic roller is manufactured by a reasonable ratio of the raw materials and a unique processing method. The unit weight of the thin-walled ceramic roller provided by the invention is reduced by 15% or above compared with the existing common ceramic rollers and consumption of the mineral raw materials is reduced during manufacturing, thus the ceramic roller has the advantages of light weight, less raw material consumption and low energy consumption. On the basis of ensuring good high-temperature strength performance, thermal shock resistance performance is effectively improved and the operational energy consumption of roller kilns is reduced, thus the ceramic roller is energy-saving and environment-friendly and operational cost of manufacturers is lowered.
Description
Technical field
The present invention relates to a kind of ceramic rod and method of manufacture thereof.
Background technology
On the roller kiln of architectural pottery and snitaryware industry, use ceramic rod in a large number, facts have proved that the comprehensive technical performance of ceramic rod meets the user demand of architectural pottery and snitaryware industry, thereby is used widely.
At present, the wall floor tile is towards big specification, and the trend development of super large-scale makes that adobe weight is increasing.Even Building Ceramics Industry is in the direction effort toward flat brick, but the deadweight of big specification adobe still is the trend of increase.How to reduce the energy consumption of kiln in this case, become the problem of each industry emphasis thinking.The current ceramic rod that is using, particularly 1250 ℃ of high temperature burn till the high temperature roller rod that section uses, and in order to reach excellent hot strength, have to keep higher wall thickness, and the deadweight of roller rod is high, means that the energy consumption of kiln transmission system increases.Simultaneously wall thickness is high, also is to be cost with a part of anti-thermal shock stability of sacrificing roller rod itself.
Summary of the invention
The object of the present invention is to provide that a kind of hot strength performance is good, in light weight, energy consumption is low, material-saving, energy-conserving and environment-protective, the good thin-walled ceramic rod of anti-thermal shock stability.
Further purpose of the present invention is to provide a kind of required raw material scheme of this thin-walled ceramic rod of making.
Further again purpose of the present invention is to provide a kind of method of making the thin-walled ceramic rod according to the starting material scheme.
Technical scheme of the present invention is such:
A kind of thin-walled ceramic rod, its characteristics are that this ceramic rod includes the Chemical Composition of following weight percent: aluminum oxide 70-73%, silicon oxide 20-23%, zirconium white 4-6%, red stone 0-0.4%.
A kind of required raw material scheme of the above-mentioned thin-walled ceramic rod of right of making; Its characteristics are that this raw material scheme comprises emergy, kaolin, alumina powder, zirconium silicate, calcining mullite powder and methylcellulose gum, and the weight percent of each raw material is respectively: emergy 35-40%, kaolin 30-35%, alumina powder 18-22%, zirconium silicate 6-9%, calcining mullite powder 2-3%, methylcellulose gum 1-2%.
A kind of method of utilizing the above-mentioned raw materials scheme to make above-mentioned thin-walled ceramic rod, its characteristics are to comprise following method steps:
(1) select each raw material of optimization size-grade distribution configuration for use: granularity is less than or equal to 325 purpose emergy >=85%; Granularity is less than or equal to 325 purpose kaolin >=90%; Middle particle diameter D50 is alumina powder >=75% of 50-60 μ m; Middle particle diameter D50 is alumina powder >=10% of 6-7 μ m, the zirconium silicate 100% that middle particle diameter D50 is 1.0 μ m, and granularity is less than or equal to 325 purposes calcining mullite powder 100%;
(2) by the described weight percent batching of claim 1, adopt wet processing to prepare pug, raw material ball milling 20 hours; Pug press filtration to moisture content is lower than 24%; Through twice vacuum pugging of pug mill, vacuum tightness >=0.095MPa, pug is controlled at 13-16% through old 24 hours and moisture content;
(3) pug that step (2) is obtained is put into high-pressure and hydraulic tube extruding machine extrusion forming, and crowded pipe pressure is controlled at 30MPa, and roller rod base substrate after the demoulding, obtained required roller rod base at 120-180 ℃ of following warm air drying 12-15 hour;
(4) with roller rod base lifting loading of kiln, under 1700 ℃ of kiln temperature, fired 15-22 hour, cooling back kiln discharge obtains the ceramic rod finished product.
Technique effect of the present invention:
The present invention is with the prescription and the ME of uniqueness, make the thin-walled ceramic rod produced be lower than on the unit weight existing conventional roller rod 15% or more than, during manufacturing, reduced the raw-material consumption of mineral, have in light weight, material-saving, advantage of low energy consumption; And guaranteeing that it has on the basis of good hot strength performance, and improved the anti-thermal shock stability of roller rod effectively, reduced the roller kiln operation energy consumption, energy-conserving and environment-protective have reduced the operational cost of manufacturing enterprise; Both satisfied and built Tao Hangye the ceramic rod performance demands; Improve the product price ratio again, improved product and used economic benefit of enterprises, more agreed with the requirements of the times of energy-conserving and environment-protective; Have good market outlook and huge demand, with the ceramic rod that progressively replaces common wall thickness.
Below in conjunction with embodiment the present invention is further described:
Embodiment
A kind of thin-walled ceramic rod of the present invention, this ceramic rod includes the Chemical Composition of following weight percent: aluminum oxide 70-73%, silicon oxide 20-23%, zirconium white 4-6%, red stone 0-0.4%.Certainly, this ceramic rod also has the impurity of surplus except that the Chemical Composition that comprises the listed weight percent in front, and this part impurity is very little in the deal that whole ceramic rod accounts for.
In order to produce the thin-walled ceramic rod of aforementioned techniques scheme; Need specific raw material scheme; This raw material scheme comprises emergy, kaolin, alumina powder, zirconium silicate, calcining mullite powder and methylcellulose gum, and the weight percent of each raw material is respectively: emergy 35-40%, kaolin 30-35%, alumina powder 18-22%, zirconium silicate 6-9%, calcining mullite powder 2-3%, methylcellulose gum 1-2%.
Raw material scheme one of more preferably is: the weight percent of each raw material is respectively: emergy 38%, kaolin 32%, alumina powder 20%, zirconium silicate 6%, calcining mullite powder 2.5%, methylcellulose gum 1.5%.
Two raw material scheme more preferably is: the weight percent of each raw material is respectively: emergy 36%, kaolin 31%, alumina powder 21%, zirconium silicate 9%, calcining mullite powder 2%, methylcellulose gum 1%.
On the basis that aforesaid raw material scheme has been arranged, in order to produce the thin-walled ceramic rod, also need specific method of manufacture, it comprises following method steps:
(1) select each raw material of optimization size-grade distribution configuration for use: granularity is less than or equal to 325 purpose emergy >=85%; Granularity is less than or equal to 325 purpose kaolin >=90%; Middle particle diameter D50 is alumina powder >=75% of 50-60 μ m; Middle particle diameter D50 is alumina powder >=10% of 6-7 μ m, the zirconium silicate 100% that middle particle diameter D50 is 1.0 μ m, and granularity is less than or equal to 325 purposes calcining mullite powder 100%;
(2) by the described weight percent batching of claim 1, adopt wet processing to prepare pug, raw material ball milling 20 hours; Pug press filtration to moisture content is lower than 24%; Through twice vacuum pugging of pug mill, vacuum tightness >=0.095MPa, pug is controlled at 13-16% through old 24 hours and moisture content;
(3) pug that step (2) is obtained is put into high-pressure and hydraulic tube extruding machine extrusion forming, and crowded pipe pressure is controlled at 30MPa, and roller rod base substrate after the demoulding, obtained required roller rod base at 120-180 ℃ of following warm air drying 12-15 hour;
(4) with roller rod base lifting loading of kiln, under 1700 ℃ of kiln temperature, fired 15-22 hour, cooling back kiln discharge obtains the ceramic rod finished product.
After making the ceramic rod finished product, generally need carry out the later stage product examine, later stage machine finish processing, and operation such as packing dress just obtain the ceramic rod commodity at last.
Volume density>=the 2.5g/cm of thin-walled ceramic rod of the present invention
3, porosity 16-20%, water-intake rate 5-8%, strength at normal temperature 50-60MPa, high temperature break resistant intensity (1350 ℃) 45-55MPa, thermal expansivity 5.7x10
-6/ ℃, 1300 ℃ of anti-thermal shock stability to room temperature do not split for 6 times, 1300 ℃ of maximum operating temperatures, 1720 ℃ of refractoriness.
The performance index of thin-walled ceramic rod of the present invention and common wall thickness ceramic rod and economic target contrast:
With 180 meters roller kiln, use 1800 of the long 3600mm ceramic rods of external diameter 50mm to be example:
| Economic target | Common heavy wall ceramic rod | The thin-walled ceramic rod | Alleviate/practice thrift |
| The deadweight of roller rod | 13284kg | ?11340kg | 1944kg |
| Consume raw mineral materials | 12221kg | ?10433kg | 1788kg |
| Produce roller rod energy consumption | 100％ | ?90％ | 10％ |
| Roller rod operation energy consumption | 100％ | ?85％ | 15％ |
Therefore, thin-walled ceramic rod with the obvious advantage aspect energy-saving and cost-reducing and environmental protection aspect the running cost of production cost that reduces ceramic rod and reduction ceramic rod use enterprise, also has positive effect simultaneously.Now, product is all paid close attention to from producing to the energy-conserving and environment-protective characteristic of using each link in the whole world.Make pottery and the snitaryware industry belonging to building of high energy consumption industry, how to reach energy-conserving and environment-protective, especially the problem that industry is shown great attention to.Thin-walled ceramic rod of the present invention through advanced person's prescription and technology, under the prerequisite that has guaranteed roller rod hot strength, obviously reduces roller rod wall thickness, thereby the product deadweight is reduced, and thermal shock resistance improves; Reduced consumption simultaneously, and the energy consumption of product operation, and discharged the useful load of roller kiln,, demonstrated powerful advantage and development space replacing on the existing common heavy wall ceramic rod to raw mineral materials.
Claims (5)
1. thin-walled ceramic rod, it is characterized in that: this ceramic rod includes the Chemical Composition of following weight percent: aluminum oxide 70-73%, silicon oxide 20-23%, zirconium white 4-6%, red stone 0-0.4%.
2. make the required raw material scheme of the said thin-walled ceramic rod of claim 1 for one kind; It is characterized in that: this raw material scheme comprises emergy, kaolin, alumina powder, zirconium silicate, calcining mullite powder and methylcellulose gum, and the weight percent of each raw material is respectively: emergy 35-40%, kaolin 30-35%, alumina powder 18-22%, zirconium silicate 6-9%, calcining mullite powder 2-3%, methylcellulose gum 1-2%.
3. according to the said raw material scheme of claim 2, it is characterized in that: the weight percent of above-mentioned each raw material is respectively: emergy 38%, kaolin 32%, alumina powder 20%, zirconium silicate 6%, calcining mullite powder 2.5%, methylcellulose gum 1.5%.
4. according to the said raw material scheme of claim 2, it is characterized in that: the weight percent of above-mentioned each raw material is respectively: emergy 36%, kaolin 31%, alumina powder 21%, zirconium silicate 9%, calcining mullite powder 2%, methylcellulose gum 1%.
5. method of utilizing the said raw material scheme of claim 2 to make the said thin-walled ceramic rod of claim 1 is characterized in that: comprise following method steps:
(1) select each raw material of optimization size-grade distribution configuration for use: granularity is less than or equal to 325 purpose emergy >=85%; Granularity is less than or equal to 325 purpose kaolin >=90%; Middle particle diameter D50 is alumina powder >=75% of 50-60 μ m; Middle particle diameter D50 is alumina powder >=10% of 6-7 μ m, the zirconium silicate 100% that middle particle diameter D50 is 1.0 μ m, and granularity is less than or equal to 325 purposes calcining mullite powder 100%;
(2) by the described weight percent batching of claim 1, adopt wet processing to prepare pug, raw material ball milling 20 hours; Pug press filtration to moisture content is lower than 24%; Through twice vacuum pugging of pug mill, vacuum tightness >=0.095MPa, pug is controlled at 13-16% through old 24 hours and moisture content;
(3) pug that step (2) is obtained is put into high-pressure and hydraulic tube extruding machine extrusion forming, and crowded pipe pressure is controlled at 30MPa, and roller rod base substrate after the demoulding, obtained required roller rod base at 120-180 ℃ of following warm air drying 12-15 hour;
(4) with roller rod base lifting loading of kiln, under 1700 ℃ of kiln temperature, fired 15-22 hour, cooling back kiln discharge obtains the ceramic rod finished product.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588487A (en) * | 2012-08-17 | 2014-02-19 | 佛山市南海金刚新材料有限公司 | Low-expansion ceramic roller, and preparation method thereof |
| CN109020567A (en) * | 2018-08-08 | 2018-12-18 | 河津市欣中达精细陶瓷有限公司 | The formula and its manufacture craft of the aluminium oxide of resistance to rapid heat cycle roller stick |
| CN109111212A (en) * | 2018-08-31 | 2019-01-01 | 萍乡市金刚科技工业园有限公司 | A kind of aluminium oxide wearable ceramic ball and preparation method thereof |
| CN112851317A (en) * | 2021-01-22 | 2021-05-28 | 佛山森蒂泰珂科技有限公司 | Roller protection material and preparation method thereof |
| CN112876267A (en) * | 2021-03-24 | 2021-06-01 | 福建安溪马斯特陶瓷有限公司 | Ceramic roller for toughened glass kiln and manufacturing process thereof |
| CN113004027A (en) * | 2021-03-26 | 2021-06-22 | 福建安溪马斯特陶瓷有限公司 | Wear-resistant high-performance ceramic roller and preparation method thereof |
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| CN101423383A (en) * | 2008-11-27 | 2009-05-06 | 武汉科技大学 | Low-temperature sintering ceramic roll and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588487A (en) * | 2012-08-17 | 2014-02-19 | 佛山市南海金刚新材料有限公司 | Low-expansion ceramic roller, and preparation method thereof |
| CN103588487B (en) * | 2012-08-17 | 2015-05-13 | 佛山市南海金刚新材料有限公司 | Low-expansion ceramic roller, and preparation method thereof |
| CN109020567A (en) * | 2018-08-08 | 2018-12-18 | 河津市欣中达精细陶瓷有限公司 | The formula and its manufacture craft of the aluminium oxide of resistance to rapid heat cycle roller stick |
| CN109111212A (en) * | 2018-08-31 | 2019-01-01 | 萍乡市金刚科技工业园有限公司 | A kind of aluminium oxide wearable ceramic ball and preparation method thereof |
| CN109111212B (en) * | 2018-08-31 | 2021-12-10 | 萍乡市金刚科技工业园有限公司 | Alumina wear-resistant ceramic ball and preparation method thereof |
| CN112851317A (en) * | 2021-01-22 | 2021-05-28 | 佛山森蒂泰珂科技有限公司 | Roller protection material and preparation method thereof |
| CN112876267A (en) * | 2021-03-24 | 2021-06-01 | 福建安溪马斯特陶瓷有限公司 | Ceramic roller for toughened glass kiln and manufacturing process thereof |
| CN113004027A (en) * | 2021-03-26 | 2021-06-22 | 福建安溪马斯特陶瓷有限公司 | Wear-resistant high-performance ceramic roller and preparation method thereof |
| CN113004027B (en) * | 2021-03-26 | 2022-05-17 | 福建安溪马斯特陶瓷有限公司 | Wear-resistant high-performance ceramic roller and preparation method thereof |
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Application publication date: 20120718 |