CN101209926A - Method for preparing low cost zirconium oxide ceramic grinding medium - Google Patents
Method for preparing low cost zirconium oxide ceramic grinding medium Download PDFInfo
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Abstract
The invention relates to a preparation method of a low cost ZrO2 (zirconium oxide) ceramic milling medium, pertaining to abrasive material technique field. The milling medium is prepared after blending, molding and firing, and is characterized in that: the ingredient weight percentages are: 1 to 10 percent of Y2O3 (yttrium oxide), 5 to 25 percent of chemical yttrium stabilized zirconia powder, 0.5 to 10 percent of high activated alpha-Al2O3 powder, and the allowance is industrial monoclinic ZrO2 powder. The preparation method of the invention has low cost and good performance.
Description
Technical field
The present invention relates to a kind of making method of improved zirconium oxide ceramic grinding medium, belong to the abrasive substance technical field.
Background technology
High-performance zirconia structural ceramics product has been subjected to the extensive concern of more areas with its superior intensity, toughness, wear resistance, physicals such as high temperature resistant, corrosion-resistant, becomes the major part of some special dimensions gradually.And the wear-resisting ball of zirconia ceramics is also being approved by people, but the engineering ceramics that the yttrium stable zirconium oxide that coprecipitation method (chemical method a kind of) is produced is produced mill Jie cost is too high, raw materials cost is ten thousand yuan/ton of 12-15, is the matter of utmost importance of restriction zirconium oxide ceramic grinding medium development always.Simple industry law adds the ceramic grinding medium quality that yttrium oxide makes in zirconium white relatively poor relatively, and density, intensity, wear resistance and chemical method product gap are bigger.So proposed the new problem of low cost zirconium oxide powder instead of chemical method Zirconium powder.There is the simple monocline phase titanium dioxide zirconium powder that utilizes of test to add the stable high abrasion zirconium oxide abrasive ball of certain amount of stabilizer processability for raw material, its hardness and density are higher, fastness to rubbing reaches service requirements substantially, and the mill ball that cost also adopts the precipitator method to produce reduces significantly.But, use this method to produce mill ball, just simply utilize physical method that the stablizer yttrium oxide is distributed in the monocline phase zircite powder, it is uneven to cause stablizer to disperse, burn till that product density is low, void content is high, folding strength is low, wear no resistance etc., physics, chemical property are all not so good, and performance index such as its hardness, density, wear resistance are well below the data of chemical method.
Summary of the invention
The object of the present invention is to provide a kind of making method of low cost zirconium oxide ceramic grinding medium, not only cost is low, and performance is good.
The making method of low cost zirconium oxide ceramic grinding medium of the present invention makes through batching, moulding with after burning till, and its ingredients by weight percentage composition is:
The industry law monoclinic zirconia powder of yttrium oxide 1-10%, chemical method yttrium stable zirconium oxide powder 5-25%, high reactivity alpha-aluminium oxide powder 0.5-10% and surplus.
Each raw material is the commercially available prod, can directly buy, and purity is that technical pure gets final product.
The suitable processing condition of control are:
Batching is levigate to D50≤1.5 μ m through wet method, through the mist projection granulating aftershaping.
Forming method adopts cold isostatic pressing method.
Firing temperature is 1450-1550 ℃.
Concrete technological process control is as follows:
(1) pre-treatment.Be that the medium wet method is levigate with the deionized water with industry law zirconium dioxide powder at first, control size is at D50≤1.5 μ m, and oven dry is pulverized, and sealing is preserved.
(2) batching.Respectively will be industrial zirconium white, yttrium oxide, chemical method zirconium white, the high reactivity Alpha-alumina of levigated (D50≤1.5 μ m) pack into according to a certain percentage in the ball mill, add deionized water.
(3) ball milling, mixing.The abundant mixing of wet ball grinding goes out abrasive particle degree D50≤1.5 μ m.
(4) drying.Adopt the spray-drier drying-granulating, granulated pellet particle diameter 100-200 μ m, moisture content weight percent control≤1.5%.
(5) adopt the moulding of isostatic cool pressing method, forming pressure is controlled to be 120-180Mpa.
(6) under 1450-1550 ℃ high temperature, burn till.
Other technology controlling and process is the conventional general knowledge technology of industry, gives unnecessary details no longer in detail.
The present invention has adopted industry law, chemical method bonded method, in the zirconium white of industry law preparation, added the yttrium stable zirconium oxide of chemical method, the product that makes not only has more excellent physical, the chemical property near chemical method yttrium stable zirconium oxide pottery, and by comparison, cheap, raw materials cost has only ten thousand yuan/ton of 5-6, half that deficiency is original, production cost reduces greatly, and the promotion and application in more areas play an important role to promotes oxidn zircon-structure ceramic product.
Through detecting, product density reaches more than 98% of theoretical density, and void content is effectively reduced; Folding strength reaches more than the 600MPa; Wear resistance per hour is reduced to below 0.05%, and hardness and fracture toughness property are also substantially near theoretical value.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
The making method of low cost zirconium oxide ceramic grinding medium of the present invention makes through batching, moulding with after burning till, and its ingredients by weight percentage composition is:
The industry law monoclinic zirconia powder of yttrium oxide 1%, chemical method yttrium stable zirconium oxide powder 10%, high reactivity alpha-aluminium oxide powder 5% and surplus.
Concrete processing step is as follows:
(1) pre-treatment.Be that the medium wet method is levigate with the deionized water with industry law zirconium dioxide powder at first, control size is at D50=1.32 μ m, and oven dry is pulverized, and sealing is preserved.
(2) batching.Respectively will be industrial zirconium white, yttrium oxide, chemical method zirconium white, the high reactivity Alpha-alumina of levigated (D50=1.32 μ m) pack into according to a certain percentage in the ball mill, add deionized water, material-water ratio is 6: 4.
(3) ball milling, mixing.The abundant mixing of wet ball grinding goes out abrasive particle degree D50=1.20 μ m.
(4) drying.Adopt the spray-drier drying-granulating, granulated pellet particle diameter 100-200 μ m, moisture content weight percent control≤1.5%.
(5) adopt the moulding of isostatic cool pressing method, forming pressure is controlled to be 150Mpa.
(6) under 1480 ℃ high temperature, burn till.
Through detecting, product density reaches 93% of theoretical density; Folding strength reaches 520MPa; Wear resistance per hour reaches 0.3%.
Embodiment 2
The making method of low cost zirconium oxide ceramic grinding medium of the present invention makes through batching, moulding with after burning till, and its ingredients by weight percentage composition is:
The industry law monoclinic zirconia powder of yttrium oxide 8%, chemical method yttrium stable zirconium oxide powder 25%, high reactivity alpha-aluminium oxide powder 10% and surplus.
Concrete processing step is as follows:
(1) pre-treatment.Be that the medium wet method is levigate with the deionized water with industry law zirconium dioxide powder at first, control size is at 1.32 μ m, and oven dry is pulverized, and sealing is preserved.
(2) batching.Respectively will be industrial zirconium white, yttrium oxide, chemical method zirconium white, the high reactivity Alpha-alumina of levigated (D50=1.32 μ m) pack into according to a certain percentage in the ball mill, add deionized water, material-water ratio is 6: 4.
(3) ball milling, mixing.The abundant mixing of wet ball grinding goes out abrasive particle degree D50=1.22 μ m.
(4) drying.Adopt the spray-drier drying-granulating, granulated pellet particle diameter 100-200 μ m, moisture content weight percent control≤1.5%.
(5) adopt the moulding of isostatic cool pressing method, forming pressure is controlled to be 150Mpa.
(6) under 1500 ℃ high temperature, burn till.
Through detecting, product density reaches 95% of theoretical density; Folding strength reaches 580MPa; Wear resistance per hour is reduced to 0.10%.
Embodiment 3
The making method of low cost zirconium oxide ceramic grinding medium of the present invention makes through batching, moulding with after burning till, and its ingredients by weight percentage composition is:
The industry law monoclinic zirconia powder of yttrium oxide 5%, chemical method yttrium stable zirconium oxide powder 15%, high reactivity alpha-aluminium oxide powder 10% and surplus.
Concrete processing step is as follows:
(1) pre-treatment.Be that the medium wet method is levigate with the deionized water with industry law zirconium dioxide powder at first, control size is at 1.32 μ m, and oven dry is pulverized, and sealing is preserved.
(2) batching.Respectively will be industrial zirconium white, yttrium oxide, chemical method zirconium white, the high reactivity Alpha-alumina of levigated (D50=1.32 μ m) pack into according to a certain percentage in the ball mill, add deionized water, material-water ratio is 6: 4.
(3) ball milling, mixing.The abundant mixing of wet ball grinding goes out abrasive particle degree D50=1.10 μ m.
(4) drying.Adopt the spray-drier drying-granulating, granulated pellet particle diameter 100-200 μ m, moisture content weight percent control≤1.5%.
(5) adopt the moulding of isostatic cool pressing method, forming pressure is controlled to be 150Mpa.
(6) under 1520 ℃ high temperature, burn till.
Through detecting, product density reaches 98% of theoretical density; Folding strength reaches 610MPa; Wear resistance per hour is reduced to 0.05%.
Claims (4)
1. the making method of a low cost zirconium oxide ceramic grinding medium makes through batching, moulding with after burning till, and it is characterized in that its ingredients by weight percentage composition is:
The industry law monoclinic zirconia powder of yttrium oxide 1-10%, chemical method yttrium stable zirconium oxide powder 5-25%, high reactivity alpha-aluminium oxide powder 0.5-10% and surplus.
2. the making method of low cost zirconium oxide ceramic grinding medium according to claim 1 is characterized in that batching is levigate to D50≤1.5 μ m through wet method, through the mist projection granulating aftershaping.
3. the making method of low cost zirconium oxide ceramic grinding medium according to claim 2 is characterized in that forming method adopts cold isostatic pressing method.
4. the making method of low cost zirconium oxide ceramic grinding medium according to claim 3 is characterized in that firing temperature is 1450-1550 ℃.
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| CN200710116340A CN100590097C (en) | 2007-12-22 | 2007-12-22 | Method for preparing low cost zirconium oxide ceramic grinding medium |
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| CN200710116340A CN100590097C (en) | 2007-12-22 | 2007-12-22 | Method for preparing low cost zirconium oxide ceramic grinding medium |
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| CN100590097C CN100590097C (en) | 2010-02-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381882A (en) * | 2011-07-27 | 2012-03-21 | 浙江自立股份有限公司 | Zirconium oxide refractory with homogeneous micro-crystallized structure and preparation method thereof |
| CN103232238A (en) * | 2013-04-25 | 2013-08-07 | 三祥新材股份有限公司 | Preparation method of high-strength electric smelting zirconia ceramic ball |
| CN104174468A (en) * | 2014-08-27 | 2014-12-03 | 上海延安药业有限公司 | Method for grinding viscous medicine with zirconium beads |
| CN107352557A (en) * | 2017-08-11 | 2017-11-17 | 中国天辰工程有限公司 | A kind of material for being used in rotary kiln crush block sial phosphorus molecular sieve |
| CN109503185A (en) * | 2018-11-14 | 2019-03-22 | 安徽致磨新材料科技有限公司 | The zirconia ceramics material of nano aluminium oxide toughening enhancing and products thereof forming method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS55158170A (en) * | 1979-05-25 | 1980-12-09 | Ngk Spark Plug Co | High speed cutting ceramic tool |
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2007
- 2007-12-22 CN CN200710116340A patent/CN100590097C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381882A (en) * | 2011-07-27 | 2012-03-21 | 浙江自立股份有限公司 | Zirconium oxide refractory with homogeneous micro-crystallized structure and preparation method thereof |
| CN102381882B (en) * | 2011-07-27 | 2013-09-11 | 浙江自立股份有限公司 | Zirconium oxide refractory with homogeneous micro-crystallized structure and preparation method thereof |
| CN103232238A (en) * | 2013-04-25 | 2013-08-07 | 三祥新材股份有限公司 | Preparation method of high-strength electric smelting zirconia ceramic ball |
| CN103232238B (en) * | 2013-04-25 | 2014-08-06 | 三祥新材股份有限公司 | Preparation method of high-strength electric smelting zirconia ceramic ball |
| CN104174468A (en) * | 2014-08-27 | 2014-12-03 | 上海延安药业有限公司 | Method for grinding viscous medicine with zirconium beads |
| CN104174468B (en) * | 2014-08-27 | 2016-06-15 | 上海延安药业有限公司 | Toughness medicine zirconium pearl Ginding process |
| CN107352557A (en) * | 2017-08-11 | 2017-11-17 | 中国天辰工程有限公司 | A kind of material for being used in rotary kiln crush block sial phosphorus molecular sieve |
| CN107352557B (en) * | 2017-08-11 | 2020-12-15 | 中国天辰工程有限公司 | Material for crushing massive silicon-aluminum-phosphorus molecular sieve in rotary kiln |
| CN109503185A (en) * | 2018-11-14 | 2019-03-22 | 安徽致磨新材料科技有限公司 | The zirconia ceramics material of nano aluminium oxide toughening enhancing and products thereof forming method |
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| CN100590097C (en) | 2010-02-17 |
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