CN106904948A - A kind of quasi- nano wearproof alpha-aluminium oxide ball preparation method - Google Patents
A kind of quasi- nano wearproof alpha-aluminium oxide ball preparation method Download PDFInfo
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- CN106904948A CN106904948A CN201710111628.2A CN201710111628A CN106904948A CN 106904948 A CN106904948 A CN 106904948A CN 201710111628 A CN201710111628 A CN 201710111628A CN 106904948 A CN106904948 A CN 106904948A
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 238000000498 ball milling Methods 0.000 claims abstract description 14
- 238000005245 sintering Methods 0.000 claims abstract description 11
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 206010020843 Hyperthermia Diseases 0.000 claims abstract description 6
- 229940037003 alum Drugs 0.000 claims abstract description 6
- 230000036031 hyperthermia Effects 0.000 claims abstract description 6
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 5
- 239000003595 mist Substances 0.000 claims abstract description 4
- 239000000654 additive Substances 0.000 claims abstract description 3
- 238000003828 vacuum filtration Methods 0.000 claims abstract description 3
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052637 diopside Inorganic materials 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000454 talc Substances 0.000 claims description 5
- 235000012222 talc Nutrition 0.000 claims description 5
- 229910052623 talc Inorganic materials 0.000 claims description 5
- 239000010456 wollastonite Substances 0.000 claims description 5
- 229910052882 wollastonite Inorganic materials 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 229910052573 porcelain Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A kind of quasi- nano wearproof alpha-aluminium oxide ball preparation method, belongs to ceramic materials preparation technology field.Characterized in that, preparation process is as follows：The first step, dispensing：It is not more than the quasi- nanometer alpha-aluminium oxide of 0.5um using mean grain size, quasi- nanometer alpha-aluminium oxide adds 0.09 0.1 component sintering additives to correspondence per mass parts；Second step, ball milling；3rd step, refined filtration：To the 1.2kg of the magnesium chloride 0.3 and 0.8kg of alum 0.2 is added in every t slurries, slurry moisture content is reduced to 36 40wt% by vacuum filtration；4th step, mist projection granulating；5th step, is shaped to spherical green compact；6th step, sintering：With hyperthermia tunnel Kiln, kiln discharge is naturally cooling to room temperature.The wear-resisting alumina ball that products obtained therefrom wear resistance ratio Japan of the present invention produces is low one times, and low ten times or so of wear-resisting alumina ball is produced than domestic original technology；Preparation cost is cheap, can be suitable for mass industrialized production.
Description
Technical field
The invention belongs to ceramic materials preparation technology field, and in particular to a kind of preparation method of wear-resisting alpha-oxidation aluminium ball.
Background technology
Aluminium oxide ceramics has excellent wearability, elevated temperature strength and inoxidizability and has obtained more and more widely should
With, be particularly increasingly used in the powder of the industries such as thermoelectricity, steel, smelting, mine or the induction system of fluid substitute pass
The metal and organic material of system.But the alumina balls produced by original process, abrasion resistance properties and shock resistance are not
Meet sand mill（Linear velocity reaches 13 meter per seconds）, the field such as cement mill requirement.Application No. 201610199240.8
Patent document proposes addition cubic boron nitride, titanium dioxide, molybdenum bisuphide, it is believed that these materials are because originating less, price is high
And should not promote the use of；The patent document of Application No. 201610305443.0 proposes hollow height of the addition containing more polyvinyl alcohol
Hardness pelletizing is internally formed micropore and plays the effect of toughness reinforcing in porcelain ball, it is believed that the operating condition of this method requirement
It is very harsh and be not suitable with mass industrialized production.
The content of the invention
For the deficiency of above-mentioned this area original technology, the present invention provides a kind of quasi- nano wearproof alpha-oxidation aluminium ball preparation side
Method, preparation cost is cheap, can be suitable for mass industrialized production.
The technical solution adopted for the present invention to solve the technical problems is：Invent a kind of quasi- nano wearproof alpha-oxidation aluminium ball system
Preparation Method, it is characterised in that preparation process is as follows：
The first step, dispensing：It is not more than the quasi- nano-alpha aluminium oxide of 0.5um using mean grain size, correspondence is per the quasi- nanometer of mass parts
Alpha-alumina adds 0.09-0.1 component sintering additives；
Second step, ball milling：By the three-level ball milling connected, slurry moisture content is 57-63wt% after ball milling；
3rd step, refined filtration：To magnesium chloride 0.3-1.2kg and alum 0.2-0.8kg is added in every t slurries, vacuum filtration is slurry
Moisture content is reduced to 36-40wt%；
4th step, mist projection granulating；
5th step, is shaped to spherical green compact；
6th step, sintering, with hyperthermia tunnel Kiln, 1400-1450 DEG C of burning is risen to the firing rate of 10-25 DEG C/min from room temperature
Into, 6-10h is incubated, pressure-fired, weakly reducing atmosphere are kept therebetween, then 200 DEG C are down to the cooling velocity of 10-30 DEG C/min, go out
Kiln, is naturally cooling to room temperature.
In the present invention, sintering aid includes each component of following mass parts：Kaolin 40-50 parts, wollastonite 10-20
Part, diopside 20-30 parts, talcum 20-30 parts.
Compared with prior art, what the present invention was realized has the beneficial effect that：
The wear-resisting alumina ball that products obtained therefrom wear resistance ratio Japan produces is low one times, produces wear-resisting alumina ball than domestic original technology low
Ten times or so；Preparation cost is cheap, can be suitable for mass industrialized production.
Specific embodiment
The present invention is made below by embodiment being illustrated, the quasi- nano-alpha aluminium oxide used by following examples is mountain
The production of Dong Aopeng new materials Science and Technology Ltd..
Embodiment one
The first step, dispensing, quasi- nano-alpha aluminium oxide 30t, kaolin 1200kg, wollastonite 600kg, diopside 600kg, talcum
600kg；Second step, ball milling is added water in ball milling, and the quasi- nanometer slurry that moisture content is 61wt% is obtained by the three-level ball milling connected；
3rd step, refined filtration, to magnesium chloride 0.3kg and alum 0.8kg, vacuumizing filtration is added in every t slurries, is reduced to slurry moisture content
39wt%；4th step, mist projection granulating；5th step, shaping, rolling turns into spherical green compact；6th step, sintering, with hyperthermia tunnel Kiln,
Burnt till from room temperature to 1400 DEG C with the firing rate of 10 DEG C/min, be incubated 10h, pressure-fired, weakly reducing atmosphere are kept therebetween,
200 DEG C are down to the cooling velocity of 30 DEG C/min again, kiln discharge is naturally cooling to room temperature.
Gained porcelain ball, if pressing《Wear-resisting alumina ball》The impact resistance that JC/T848.12010 specifies and abrasion test method,
Ground 24 hours with 80 turns per minute, measurement result is 0.001 g/kgh, therefore it is considered that the method rotating speed is too low, porcelain
Friction suffered by ball is too weak with effect of impact, is unsuitable for determining the performance of product of the present invention.We use Zibo Randt's fine ceramics
Co., Ltd YMJ1 type Quick ball grinders, are ground 15 hours with 480 turns per minute, and impact resistance is 3.06 with abrasion test result
G/kgh, with the Wuxi building materials testing machinery plant full-automatic constant stress pressure testing machine of DYE-600 types, measure crushing force is 41kN.
Ground 15 hours with 480 turns per minute, it is 32.52 g/kgh, Japan to measure original technology and produce wear-resisting alumina ball milling consumption
It is 5.97 g/kgh to produce wear-resisting alumina ball milling consumption.
It can be seen that low one times or so of the wear-resisting alumina ball that products obtained therefrom wear resistance ratio Japan produces, produces resistance to than domestic original technology
Low ten times or so of alumina balls of mill.
Embodiment two
Compared with embodiment one, preparation technology flow is identical, and simply raw material specifically matches difference, the design parameter of each step
Different, measurement result is different, and something in common is repeated no more, and difference is specific as follows：
The first step, dispensing, quasi- nano-alpha aluminium oxide 30t, kaolin 1500kg, wollastonite 300kg, diopside 600kg, talcum
600kg；Second step, ball milling, quasi- nanometer slurry moisture content is 59.5wt%；3rd step, refined filtration, to adding magnesium chloride in every t slurries
0.8kg and alum 0.5kg, vacuumizing filtration, slurry moisture content is reduced to 38wt%；6th step, sintering, with hyperthermia tunnel Kiln, with 18
DEG C/firing rate of min burns till from room temperature to 1430 DEG C, is incubated 9h, then be down to 200 with the cooling velocity of 20 DEG C/min
℃。
Gained porcelain ball, presses《Wear-resisting alumina ball》The impact resistance that JC/T848.12010 specifies and abrasion test method, survey
Result is determined for 0.001 g/kgh, with YMJ1 type Quick ball grinders, is ground 15 hours with 480 turns per minute, determine abrasion result
It is 3.12 g/kgh, with the Wuxi building materials testing machinery plant full-automatic constant stress pressure testing machine of DYE-600 types, determines crushing force
It is 39.4kN.
Embodiment 3
Compared with embodiment one, preparation technology flow is identical, and simply raw material specifically matches difference, and the design parameter of each step has
Institute is different, and something in common is repeated no more, and difference is specific as follows：
The first step, dispensing, quasi- nano-alpha aluminium oxide 30t, kaolin 1200kg, wollastonite 300kg, diopside 600kg, talcum
600kg；Second step, ball milling, quasi- nanometer slurry moisture content is starched for 58.2wt%；3rd step, refined filtration, to adding chlorination in every t slurries
Magnesium 1.2kg and alum 0.2kg, vacuumizing filtration, slurry moisture content is reduced to 37wt%；6th step, sintering, with hyperthermia tunnel Kiln, with
The firing rate of 25 DEG C/min is burnt till from room temperature to 1450 DEG C, is incubated 6h, then be down to 200 with the cooling velocity of 10 DEG C/min
℃。
Gained porcelain ball, presses《Wear-resisting alumina ball》The impact resistance that JC/T848.12010 specifies and abrasion test method, survey
Result is determined for 0.001 g/kgh, with YMJ1 type Quick ball grinders, is ground 15 hours with 480 turns per minute, determine abrasion result
It is 2.97 g/kgh, with the full-automatic constant stress pressure testing machine of DYE-600 types, measure crushing force is 41.6kN.
The above, is only presently preferred embodiments of the present invention, is not the limitation for making other forms to the present invention, is appointed
What those skilled in the art is become the equivalence enforcement for turning to equivalent variations possibly also with the technology contents of the disclosure above
Example.But it is every without departing from technical solution of the present invention content, according to appointing that technical spirit of the invention is made to above example
What simple modification, equivalent variations, still falls within the protection domain of technical solution of the present invention.
Claims (2)
1. a kind of quasi- nano wearproof alpha-oxidation aluminium ball preparation method, it is characterised in that preparation process is as follows：
The first step, dispensing：It is not more than the quasi- nano-alpha aluminium oxide of 0.5um using mean grain size, correspondence is per the quasi- nanometer of mass parts
Alpha-alumina adds 0.09-0.1 component sintering additives；
Second step, ball milling：By the three-level ball milling connected, slurry moisture content is 57-63wt% after ball milling；
3rd step, refined filtration：To magnesium chloride 0.3-1.2kg and alum 0.2-0.8kg is added in every t slurries, vacuum filtration is slurry
Moisture content is reduced to 36-40wt%；
4th step, mist projection granulating；
5th step, is shaped to spherical green compact；
6th step, sintering：With hyperthermia tunnel Kiln, 1400-1450 DEG C of burning is risen to from room temperature with the firing rate of 10-25 DEG C/min
Into, 6-10h is incubated, pressure-fired, weakly reducing atmosphere are kept therebetween, then 200 DEG C are down to the cooling velocity of 10-30 DEG C/min, go out
Kiln, is naturally cooling to room temperature.
2. a kind of quasi- nano wearproof alpha-oxidation aluminium ball preparation method according to claim 1, it is characterised in that sintering aid
Each component including following mass parts：Kaolin 40-50 parts, wollastonite 10-20 parts, diopside 20-30 parts, talcum 20-30
Part.
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| CN109206125A (en) * | 2018-10-31 | 2019-01-15 | 广州供电局有限公司 | ceramic insulator and preparation method thereof |
| CN109534790A (en) * | 2018-11-29 | 2019-03-29 | 刘永 | A kind of preparation method of high-performance high-purity alumina ceramic mill ball |
| CN110368918A (en) * | 2019-08-15 | 2019-10-25 | 西南化工研究设计院有限公司 | A kind of Spray granulation method of boehmite powder |
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| CN103274674A (en) * | 2013-06-17 | 2013-09-04 | 金刚新材料股份有限公司 | Preparation method of alumina porcelain ball for dry process ball mill |
| CN104628302A (en) * | 2013-11-12 | 2015-05-20 | 青岛青工建筑机械有限公司 | Lightweight environmental protection heat-resistant decoration material |
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| CN102503289A (en) * | 2011-11-23 | 2012-06-20 | 成都新柯力化工科技有限公司 | Thermal-insulating anti-flaming building material and preparation method thereof |
| CN103274674A (en) * | 2013-06-17 | 2013-09-04 | 金刚新材料股份有限公司 | Preparation method of alumina porcelain ball for dry process ball mill |
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| CN109206125A (en) * | 2018-10-31 | 2019-01-15 | 广州供电局有限公司 | ceramic insulator and preparation method thereof |
| CN109534790A (en) * | 2018-11-29 | 2019-03-29 | 刘永 | A kind of preparation method of high-performance high-purity alumina ceramic mill ball |
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