CN1187479A - Method for producing corundum ceramics using alumine as main raw material and its products - Google Patents
Method for producing corundum ceramics using alumine as main raw material and its products Download PDFInfo
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- CN1187479A CN1187479A CN97117247A CN97117247A CN1187479A CN 1187479 A CN1187479 A CN 1187479A CN 97117247 A CN97117247 A CN 97117247A CN 97117247 A CN97117247 A CN 97117247A CN 1187479 A CN1187479 A CN 1187479A
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Abstract
A process for preparing corundum ceramic products such as grinding ball, liner plate and antiwear plate used in ball mill, coal separator and ore separator includes such steps as preparing binder with additive, adhesive clay and high-Al clinker, grinding the binder with high-Al clinker, baking, adding it to molten paraffin wax to obtain thermoplastic material, injection shaping, removing wax and calcine. The main crystal phase of said product is corundum and the content of Al2O3 reaches 55-85%. The product features high hardness, toughness and grinding efficiency, long service life and low cost.
Description
The present invention relates to a kind of is the method that main raw material is made the corundum ceramic goods with the alumine, and the corundum ceramic goods.
In refractory materials and Cement industry, material adopts ball mill processing usually, and abrading-ball, liner plate that ball mill uses adopt cast steel or ceramic more, though cast-steel grinding ball and liner plate hardness height, good toughness, but the abrading-ball surface often has a small amount of finely divided iron powder to fall to sneaking in the material in the process of lapping, often needs to increase to remove the iron powder operation, causes production cost to increase, and the iron powder in the material to remove fully also be impossible, directly influence the quality and the use properties of product.
For addressing the above problem, abrading-ball and the liner plate made of good high-abrasive material have been developed at present, as product innovations such as sintered alumina and fusion corundum abrading-ball, liner plates.This series products hardness height, the mill efficiency height, long service life can not produce detrimental impurity and sneak into and influence quality product in the material.But its used main raw material is the very high commercial alumina of price etc., the product cost height, and the price height is difficult for being accepted by users.In industries such as the cement of Shanxi Province, chemical industry, pottery, stone flour, breeze, refractory materials, use about more than 2,000 families of unit of ball mill, but use above-mentioned abrading-ball of new generation, what is heard also arranged by the unit of plate.
The object of the present invention is to provide a kind of is main raw material with the alumine, add an amount of additive and make the method for corundum ceramic goods, and corundum ceramic goods, to satisfy relevant industries to high rigidity, long lifetime, corundum ceramic goods cheaply, as grinding ball for ball mill and liner plate, coal separation (or ore dressing) the equipment demand of wearing piece.
Of the present invention is the method that main raw material is made the corundum ceramic goods with the alumine, it is characterized in that comprising the steps:
(1) the preparation binder is got additive synthetic material 15～50% (weight), bonding clay 10～80% (weight), Al
2O
3The high bauxite clinker powder 0～70% (weight) of content 60～90%, three's total amount are 100% (weight), and the ball mill of packing into, and the clear water of adding and three's total amount equivalent grind to form binder;
(2) get above-mentioned binder 10～35% (in siccative weight), Al
2O
3The high bauxite clinker powder 65～90% (weight) of content 60～90%, the two total amount are 100% (weight), and the ball mill of packing into, and the clear water of adding and described high bauxite clinker powder equivalent grind to form slurry shape material;
(3) above-mentioned slurry shape material is dried under 150～200 ℃ of temperature make dry mash;
(4) dry mash with 75～80% (weight) adds in the melted paraffin of 20～25% (weight), stirs, and makes its temperature remain on 100～120 ℃, is thermoplastic blanks;
(5) above-mentioned thermoplastic blanks is injected into goods base substrate, de-waxing then by the thermoplastic injection molding machine;
(6) the goods base substrate behind de-waxing is placed kiln, under 1400～1550 ℃ of high temperature, 48～72 hours burnt products of roasting.
Corundum ceramic goods of Zhi Zuoing according to the method described above, its crystal phase structure is principal crystalline phase with the corundum, all the other are mullite and glassy phase, Al
2O
3Content 55～85%, SiO
2Content is 5～40%.
The corundum ceramic goods of making according to the method described above are abrading-ball or liner plates that ball mill is used, and also can be the various wearing plates that coal separation (or ore dressing) equipment is used.
The present invention is used contains Al
2O
360～90% bauxite chamotte, the alumine of preferably selecting for use areas such as Lin County, Shanxi Province, Yangquan to produce is fired.Selection contains Al
2O
360～90% alumine after 1000 ℃ or 1500 ℃ of calcinings, again through jaw formula machine, dry mill, tuber grinder fragmentation, is ground into the material grain and is lighter than little 1.5mm high-alumina powder clinker.
The used additive synthetic material of the present invention is divided into two groups of A, B, and the A group is made up of salt, and the B group is made up of oxide compound.The weight percentages of A group additive synthetic material is: CaCO
330～40%, Mg
3Si
4O
1135～55%, BaCo
35～25%.The weight percentages of B group additive synthetic material is: MnO
245～55%, TiO
225～35%, Cr
2O
315～25%, Co
2O
31～5%.
During preparation additive synthetic material, by above-mentioned A group or B group component batching, in the ball mill of packing into, and the clear water of adding and additive each component total amount equivalent, be ground to a material material φ＜0.025mm and get final product.
The selected bonding clay of the present invention is kieselguhr or kaolin or burns kaolin.
Further describe the present invention below in conjunction with embodiment.
Embodiment one:
(1) preparation binder
Get and contain CaCO
330%, Mg
3Si
4O
1150%, BaCo
320% A group additive synthetic material 40% (in siccative weight) is burnt kaolin 60% (weight), the ball mill of packing into, and add and the high clear water of sympathizing with native equivalent of burning, be ground to material particular diameter less than 0.032mm.
(2) get above-mentioned binder 30% (in siccative weight), contain Al
2O
370.5% high bauxite clinker powder 70% (weight) adds ball mill, and the clear water of adding and high alumina equivalent, is ground to material particular diameter less than 0.04mm, makes slurry shape material.
(3) with above-mentioned slurry shape material, under drainage, 170 ℃ of temperature, dry, be ground into dry mash.
(4) get paraffin 20% and place roasting wax jar heating roastingization after, add above-mentioned dry mash 80%, stir with stirrer, make its temperature remain on 100～120 ℃, be thermoplastic blanks.
(5) above-mentioned thermoplastic blanks is injected into the goods base substrate by the thermoplastic injection molding machine.
(6) the goods base substrate places kiln, 48～72 hours burnt products of roasting under 1400～1420 ℃ of high temperature after wax expelling furnace de-waxing, trimming.
Embodiment two:
Present embodiment is selected B group additive synthetic material for use, and its weight percentages is: MnO
245%, TiO
230%, Cr
2O
323%, Co
2O
32%.
During the preparation binder, get above-mentioned B group additive synthetic material 20% (in siccative weight), kieselguhr 30% contains Al
2O
391.5% high bauxite clinker powder 50%, in the ball mill of packing into, and the clear water of adding and kieselguhr and high alumina equivalent, be ground to the material particles diameter less than 0.032mm, promptly make binder.
Get above-mentioned binder 28% (in siccative weight), contain Al
2O
391.5% high bauxite clinker powder 72%, in the ball mill of packing into, and the clear water of adding and high-alumina powder clinker equivalent, be ground to material particular diameter less than 0.04mm, promptly make slurry shape material.
Follow-up each operation is described with embodiment one substantially, and different is into the kiln maturing temperature is 1450～1470 ℃.
Embodiment three:
Present embodiment is selected A group additive synthetic material for use, and its weight percentages content is: CaCO
3(calcite) 39%, Mg
3Si
4O
11(talcum powder) 40%, BaCo
321%.
During the preparation binder, get above-mentioned additive synthetic material 30% (in siccative weight), kieselguhr 30%, burn kaolin 40%, in the ball mill of packing into, and the clear water of adding and weight such as kieselguhr and burning kaolin, be ground to the material grain through less than 0.032mm, binder.
Get above-mentioned binder 33% (in siccative weight), Al
2O
3Content is 91.5% high bauxite clinker powder 67%, in the ball mill of packing into, and the clear water of weight such as adding and high bauxite clinker powder, grind to form slurry shape material.
The follow-up sintering temperature is 1520～1540 ℃, and all the other operations are described with embodiment one fully, repeat no more herein.
Advantage of the present invention is as follows:
The invention provides a kind ofly take alumine as primary raw material, add an amount of additive and bonding clay system Make the method for corundum ceramic product, its primary raw material is selected the alumine of high-quality low-cost, and cost reduces greatly, Its cost is about about 1/4th of commercial alumina goods, but it has very high corundum content, has oxygen Change the high rigidity of aluminum products. Owing to adopted salt, oxide-based additive, improved in the goods significantly The intensity of glassy phase, goods hardness height, good toughness, the grinding efficiency height, long service life, and do not produced Evil impurity.
Corundum ceramic product of the present invention comprises abrading-ball, liner plate and various wearing plate, extensively be suitable for ball mill, Cleaning unit, preparation equipment support the use.
Goods of the present invention are through the test of the units such as ceramic test station, Shanxi Province, Linxian County, Shanxi Province refractory factory, cement plant, Lin County, and the result is as follows:
(1) impact test
Size of sample 50 * 50 * 50mm naturally falls to falling to impact sample with 2500 gram iron ball 1N height and does not decrease for 10 times.
(2) withstand voltage destructive testing
Size of sample φ 50mm abrading-ball, recording limiting pressure is 85250kg.
(3) size of sample 50 * 50 * 10mm, Mohs' hardness is 8.
(4) size of sample 120 * 10 * 10mm, the anti-pressure that fractures is 1527kg.
(5) make wear test with carborundum disc
Sample 112 * 112 * 12mm wearing plate, wear intensity is identical with U.S. white fused alumina wearing plate.
φ 70 provided by the invention, φ 50mm abrading-ball, through Linxian County, Shanxi Province refractory factory, cement plant, Lin County, The contrast service test result of Heshun County ceramics factory is: be 19.57 times of normal steel casting abrading-ball the service life of abrading-ball, 44.5 times of stone matter abrading-ball. The grinding efficiency of abrading-ball is 2 times of normal steel casting abrading-ball, is stone matter abrading-ball 11 times.
Claims (8)
1, a kind of is the method that main raw material is made the corundum ceramic goods with the alumine, it is characterized in that it comprises the steps:
(1) the preparation binder is got additive synthetic material 15～50% (weight), bonding clay 10～80% (weight), Al
2O
3The high bauxite clinker powder 0～70% (weight) of content 60～90%, three's total amount are 100% (weight), and the ball mill of packing into, and the clear water of adding and three's total amount equivalent grind to form binder;
(2) get above-mentioned binder 10～35% (in siccative weight), Al
2O
3The high bauxite clinker powder 65～90% (weight) of content 60～90%, the two total amount are 100% (weight), and the ball mill of packing into, and the clear water of adding and described high bauxite clinker powder equivalent grind to form slurry shape material;
(3) above-mentioned slurry shape material is dried under 150～200 ℃ of temperature make dry mash;
(4) dry mash with 75～80% (weight) adds in the melted paraffin of 20～25% (weight), stirs, and makes its temperature remain on 100～120 ℃, is thermoplastic blanks;
(5) above-mentioned thermoplastic blanks is injected into goods base substrate, de-waxing then by the thermoplastic injection molding machine;
(6) the goods base substrate behind de-waxing is placed kiln, under 1400～1550 ℃ of high temperature, 48～72 hours burnt products of roasting.
2, method according to claim 1 is characterized in that: described additive synthetic material contains CaCO
330～40% (weight), Mg
3Si
4O
1135～55% (weight), BaCO
35～25% (weight).
3, method according to claim 1 is characterized in that: described additive synthetic material contains MnO
245～55% (weight), TiO
225～35% (weight), Cr
2O
315～25% (weight), Co
2O
3L～5% (weight).
4, method according to claim 1 is characterized in that: the material particular diameter of described binder is less than 0.032mm.
5, method according to claim 1 is characterized in that: the little 0.04mm of the material particular diameter of described slurry shape material.
6, the corundum ceramic goods of making according to the described method of any one claim of claim 1～5 is characterized in that: its crystal phase structure is main product phase with the corundum, and all the other are mullite and glassy phase, Al
2O
3Content is 55～85%, SiO
2Content is 5～40%.
7, the corundum ceramic goods of making according to the described method of any one claim of claim 1～5 as claimed in claim 6, it is characterized in that: described corundum ceramic goods are abrading-balls that ball mill is used, or liner plate.
8, the corundum ceramic goods of making according to the described method of any one claim of claim 1～5 as claimed in claim 6, it is characterized in that: described corundum ceramic goods are various wearing plates that coal separation (or ore dressing) equipment is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97117247A CN1060750C (en) | 1997-09-04 | 1997-09-04 | Method for producing corundum ceramics using alumine as main raw material and its products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97117247A CN1060750C (en) | 1997-09-04 | 1997-09-04 | Method for producing corundum ceramics using alumine as main raw material and its products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1187479A true CN1187479A (en) | 1998-07-15 |
| CN1060750C CN1060750C (en) | 2001-01-17 |
Family
ID=5174388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97117247A Expired - Fee Related CN1060750C (en) | 1997-09-04 | 1997-09-04 | Method for producing corundum ceramics using alumine as main raw material and its products |
Country Status (1)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072623C (en) * | 1998-09-01 | 2001-10-10 | 张世平 | Method of producing sintered boule |
| CN104649654A (en) * | 2015-02-14 | 2015-05-27 | 济南大学 | Preparation method of special low-density grinding column for cement grinding mill |
| CN105272286A (en) * | 2015-10-15 | 2016-01-27 | 无锡日月合金材料有限公司 | Protection liner plate for vacuum melting furnace |
| CN105565784A (en) * | 2015-12-24 | 2016-05-11 | 重庆罗曼新材料科技有限公司 | Ceramic grinding body and preparation method thereof |
| CN105819840A (en) * | 2016-04-02 | 2016-08-03 | 东阿东昌天汇科技有限公司 | Ceramic grinding segment for cement grinder and preparation method of ceramic grinding segment |
| CN109796199A (en) * | 2019-03-30 | 2019-05-24 | 李雷 | A kind of ceramics and preparation method thereof for gas-shielded welder nozzle |
| CN110240469A (en) * | 2019-07-26 | 2019-09-17 | 汝州市小微结构陶瓷有限公司 | Micro crystal wearable brick and its processing method |
| CN110407564A (en) * | 2019-07-29 | 2019-11-05 | 汝州市小微结构陶瓷有限公司 | Micro crystal wearable ball brick and its processing method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1026976C (en) * | 1988-12-21 | 1994-12-14 | 中国科学院地质研究所矿物材料试验基地 | Complex phase corundum and its manufacture method |
| CN1093072A (en) * | 1993-04-01 | 1994-10-05 | 山东省硅酸盐研究设计院 | Corundum ceramic material and method for making thereof and purposes |
| CN1118813A (en) * | 1994-05-10 | 1996-03-20 | 武汉钢铁学院 | Producing method for Al2O3 granules reinforced wear resistance composite material |
-
1997
- 1997-09-04 CN CN97117247A patent/CN1060750C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072623C (en) * | 1998-09-01 | 2001-10-10 | 张世平 | Method of producing sintered boule |
| CN104649654A (en) * | 2015-02-14 | 2015-05-27 | 济南大学 | Preparation method of special low-density grinding column for cement grinding mill |
| CN104649654B (en) * | 2015-02-14 | 2017-01-18 | 济南大学 | Preparation method of special low-density grinding column for cement grinding mill |
| CN105272286A (en) * | 2015-10-15 | 2016-01-27 | 无锡日月合金材料有限公司 | Protection liner plate for vacuum melting furnace |
| CN105272286B (en) * | 2015-10-15 | 2017-06-16 | 无锡日月合金材料有限公司 | A kind of vacuum melting furnace protection liner plate |
| CN105565784A (en) * | 2015-12-24 | 2016-05-11 | 重庆罗曼新材料科技有限公司 | Ceramic grinding body and preparation method thereof |
| CN105819840A (en) * | 2016-04-02 | 2016-08-03 | 东阿东昌天汇科技有限公司 | Ceramic grinding segment for cement grinder and preparation method of ceramic grinding segment |
| CN109796199A (en) * | 2019-03-30 | 2019-05-24 | 李雷 | A kind of ceramics and preparation method thereof for gas-shielded welder nozzle |
| CN110240469A (en) * | 2019-07-26 | 2019-09-17 | 汝州市小微结构陶瓷有限公司 | Micro crystal wearable brick and its processing method |
| CN110240469B (en) * | 2019-07-26 | 2022-07-01 | 汝州市小微结构陶瓷有限公司 | Microcrystal wear-resistant brick and processing method thereof |
| CN110407564A (en) * | 2019-07-29 | 2019-11-05 | 汝州市小微结构陶瓷有限公司 | Micro crystal wearable ball brick and its processing method |
| CN110407564B (en) * | 2019-07-29 | 2022-07-01 | 汝州市小微结构陶瓷有限公司 | Microcrystal wear-resisting ball brick |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1060750C (en) | 2001-01-17 |
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