CN101698599A - Composite ceramic millstone and manufacture method thereof - Google Patents
Composite ceramic millstone and manufacture method thereof Download PDFInfo
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- CN101698599A CN101698599A CN200910186434A CN200910186434A CN101698599A CN 101698599 A CN101698599 A CN 101698599A CN 200910186434 A CN200910186434 A CN 200910186434A CN 200910186434 A CN200910186434 A CN 200910186434A CN 101698599 A CN101698599 A CN 101698599A
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- ceramic millstone
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Abstract
The invention relates to a composite ceramic millstone and a manufacture method thereof. The method adopts nanometer grade 3Y-TZP(3mol percent of Y2O3 stable tetragonal polycrystal ZrO2) as substrate, adds nanometer grade Al2O3, Ce-ZrO2(Ce2O3 stable tetragonal polycrystal ZrO2) and submicron Cr2O3 to manufacture the composite ceramic millstone product by ball milling, pelleting, forming, biscuit manufacturing, high temperature sintering and precise grinding manufacturing, wherein the sintering temperature range is between 1,480 and 1,550 DEG C, and the insulating time is between 2 and 4 hours. The product obtained by the method has the characteristics of high strength, high toughness, high hardness, corrosion resistance and the like, and can be widely applied to millstone materials used under a high speed rotating state in chemical engineering fiel.
Description
Technical field
The invention belongs to ceramic (pottery) field, specifically is a kind of composite ceramic millstone and manufacture method thereof that is applied to use under the high speed rotating state.
Background technology
Be applied to the rotating grinding board of chemical field at present, its Working environment is to carry out high speed rotary motion having in the dense thick liquid of the uneven particulate of thickness, so require mill to have very strong wearability and erosion resistance.Rotating grinding board generally adopts stainless steel and high chromium cast iron material to make at present, its wear resisting property, corrosion resistance nature are relatively poor, there is short, easy to wear and corrosion-prone defective in work-ing life, and can bring secondary pollution to product, though also have some matrix materials to be used to make the grinding machine mill, do not reach good result of use.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of composite ceramic millstone and manufacture method thereof that is applied to have under the high speed rotating state high strength, high tenacity, high rigidity and high rotproofness.
A kind of composite ceramic millstone of the present invention is characterized in that by component being:
3mol%Y
2O
3Stable cubic polycrystal ZrO
285～90wt%
Al
2O
3 4～8wt％
Ce
2O
3Stable cubic polycrystal ZrO
24～6wt%
Cr
2O
3 2～5wt％，
The composite ceramic millstone of forming.
Make the method for above-mentioned composite ceramic millstone, it is characterized in that: with nano level 3mol%Y
2O
3Stable cubic polycrystal ZrO
2, nano level Al
2O
3, nano level Ce
2O
3Stable cubic polycrystal ZrO
2And submicron order Cr
2O
3Be raw material, as following weight percent:
3mol%Y
2O
3Stable cubic polycrystal ZrO
285～90wt%
Al
2O
3 4～8wt％
Ce
2O
3Stable cubic polycrystal ZrO
24～6wt%
Cr
2O
3 2～5wt％，
Obtain goods through batching, ball milling, granulation, moulding, biscuit processing, high temperature sintering, accurate mill processing, wherein sintering range is: 1480～1550 ℃, and soaking time 2～4 hours.
Described ball milling optimised process is that the powder for preparing is put into ball mill, add zirconium oxide abrasive ball and water, the part by weight of powder, zirconium ball, water is 1: 1.8～2.0: 0.25～0.3, and the polyvinyl alcohol that adds powder weight 0.1～0.2% in addition is as binding agent, ball milling 12～16 hours.
Described granulation can be adopted mist projection granulating, and particle diameter is controlled at 20～30 μ m and is advisable.
Described moulding can be adopted earlier dry-pressing formed, pressure 95～105MPa; Back cold isostatic compaction, pressure 130～160MPa, the density that obtains biscuit of ceramics easily reaches 60～65%.
Described biscuit processing comprises fluting, fans the air and corner finishing processing.
Described accurate mill processing comprises two-sided planar processing, depth of rebate processing and through hole processing.
The present invention adopts nano-scale particle 3Y-TZP (3mol%Y
2O
3Stable cubic polycrystal ZrO
2) be matrix, add nano-scale particle Al
2O
3, Ce-ZrO
2(Ce
2O
3Stable cubic polycrystal ZrO
2) and submicron particles Cr
2O
3, by moulding, high temperature sintering, precision sizing, obtain high strength, high tenacity, high rigidity and the strong high performance ceramic material of rotproofness, thereby improve greatly the rotating grinding board life-span, solved the pollution problem that brings to product because of abrasive disk abrasion.
Embodiment
Embodiment 1
Take by weighing 26.4 kilograms of 3Y-TZP powder (median size is 100nm), 1.5 kilograms of nano level Al respectively
2O
3Powder, 1.2 kilograms of nano level Ce-ZrO
2Powder and 0.9 kilogram of submicron order Cr
2O
3Powder.Put in the ball grinder, add diameter and be 55 kilograms in the zirconium oxide abrasive ball of 8～10mm, add 8 kilograms of entry, add polyvinyl alcohol 300 grams again, ball milling 10 hours obtains finely dispersed ceramic slurry.Place in the spray-drying tower, carry out mist projection granulating, obtain tiny granular granulation powder spherical in shape.Take by weighing this powder of 1/6 weight again and pour in the metal die, carry out dry-pressing formedly, forming pressure is 100MPa, and in 4 seconds of pressurize, the slowly demoulding then can obtain the ceramic millstone biscuit of certain intensity and shape.Again the mill biscuit is put into rubber soft mode cover, put into cold isostatic press and suppress, pressure is 150MPa, obtains fine and close more and the higher mill biscuit of intensity, use lathe that the corner is slotted, fans the air, reached to the mill biscuit and repair, so that meet the drawing requirement.Putting into then with the Si-Mo rod is that the high temperature kiln of heating element carries out sintering, intensification length overall 48 hours, and 1520 ℃ of vertexs, and be incubated 2 hours, cool to room temperature again with the furnace.Adopt the diamond emery wheel to carry out the higher and higher attrition process of smooth finish of precision to the ceramic millstone behind the sintering, mainly comprise two-sided planar processing and depth of rebate processing and through hole processing, obtain the high-performance composite ceramic millstone.The product bending strength is 1280MPa, and fracture toughness property is 12.2MPam
1/2, Vickers' hardness is 14.1GPa
Embodiment 2
Take by weighing 25.8 kilograms of 3Y-TZP powder (median size is 100nm), 1.8 kilograms of nano level Al respectively
2O
3Powder, 1.5 kilograms of nano level Ce-ZrO
2Powder and 0.9 kilogram of submicron order Cr
2O
3Powder.Put in the ball grinder, add diameter and be 55 kilograms in the zirconium oxide abrasive ball of 8～10mm, add 8 kilograms of entry, add polyvinyl alcohol 300 grams again, ball milling 10 hours obtains finely dispersed ceramic slurry.Place in the spray-drying tower, carry out mist projection granulating, obtain tiny granular granulation powder spherical in shape.Take by weighing this powder of 1/6 weight again and pour in the metal die, carry out dry-pressing formedly, forming pressure is 100MPa, and in 4 seconds of pressurize, the slowly demoulding then can obtain the ceramic millstone biscuit of certain intensity and shape.Again the mill biscuit is put into rubber soft mode cover, putting into cold isostatic press suppresses, pressure is 150MPa, obtain fine and close more and the higher mill base substrate of intensity, put into then with the Si-Mo rod is that the high temperature kiln of heating element carries out sintering, intensification length overall 48 hours, 1530 ℃ of vertexs, and be incubated 2.5 hours, cool to room temperature again with the furnace.Adopt the diamond emery wheel to carry out the higher and higher attrition process of smooth finish of precision to the ceramic millstone behind the sintering, mainly comprise two-sided planar processing and depth of rebate processing and through hole processing, obtain the high-performance composite ceramic millstone.The product bending strength is 1290MPa, and fracture toughness property is 13.2MPam
1/2, Vickers' hardness is 13.1GPa.
Claims (7)
1. composite ceramic millstone is characterized in that by component being:
3mol%Y
2O
3Stable cubic polycrystal ZrO
285～90wt%
Al
2O
3 4～8wt％
Ce
2O
3Stable cubic polycrystal ZrO
24～6wt%
Cr
2O
3 2～5wt％
The composite ceramic millstone of forming.
2. a method of making the described composite ceramic millstone of claim 1 is characterized in that: with nano level 3mol%Y
2O
3Stable cubic polycrystal ZrO
2, nano level Al
2O
3, nano level Ce
2O
3Stable cubic polycrystal ZrO
2And submicron order Cr
2O
3Be raw material, as following weight percent:
3mol%Y
2O
3Stable cubic polycrystal ZrO
285～90wt%
Al
2O
3 4～8wt％
Ce
2O
3Stable cubic polycrystal ZrO
24～6wt%
Cr
2O 2～5wt％，
Obtain goods through batching, ball milling, granulation, moulding, biscuit processing, high temperature sintering, accurate mill processing, wherein sintering temperature is: 1480～1550 ℃, and soaking time 2～4 hours.
3. the manufacture method of composite ceramic millstone according to claim 2, it is characterized in that: described ball milling is that the powder for preparing is put into ball mill, add zirconium oxide abrasive ball and water, the part by weight of powder, zirconium ball, water is 1: 1.8～2.0: 0.25～0.3, the polyvinyl alcohol that adds 0.1～0.2% powder weight in addition is as binding agent, ball milling 12～16 hours.
4. the manufacture method of composite ceramic millstone according to claim 2 is characterized in that: mist projection granulating is adopted in described granulation, and particle diameter is 20～30 μ m.
5. the manufacture method of composite ceramic millstone according to claim 2 is characterized in that: described moulding is adopted earlier dry-pressing formed, pressure 95～105MPa; Cold isostatic compaction then, pressure 130～160MPa, the density that obtains biscuit of ceramics is 60%～65%.
6. the manufacture method of composite ceramic millstone according to claim 2 is characterized in that: described biscuit processing comprises fluting, fan the air and the corner finishing is processed.
7. the manufacture method of composite ceramic millstone according to claim 2 is characterized in that: described accurate mill processing comprises two-sided planar processing, depth of rebate processing and through hole processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186434A CN101698599A (en) | 2009-11-05 | 2009-11-05 | Composite ceramic millstone and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186434A CN101698599A (en) | 2009-11-05 | 2009-11-05 | Composite ceramic millstone and manufacture method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101698599A true CN101698599A (en) | 2010-04-28 |
Family
ID=42147060
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910186434A Pending CN101698599A (en) | 2009-11-05 | 2009-11-05 | Composite ceramic millstone and manufacture method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN101698599A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320031A (en) * | 2011-08-25 | 2012-01-18 | 山东理工大学 | Zirconia ceramic abrasive wheel and preparation method |
| CN104261821A (en) * | 2014-09-12 | 2015-01-07 | 李正国 | Process for manufacturing super-wearable zirconia ceramic extrusion head |
| CN108484165A (en) * | 2018-06-13 | 2018-09-04 | 哈尔滨宇航精创科技有限公司 | A kind of manufacturing method of aluminium oxide toughening compound zirconia artificial tooth porcelain block |
-
2009
- 2009-11-05 CN CN200910186434A patent/CN101698599A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320031A (en) * | 2011-08-25 | 2012-01-18 | 山东理工大学 | Zirconia ceramic abrasive wheel and preparation method |
| CN102320031B (en) * | 2011-08-25 | 2014-03-12 | 山东理工大学 | Zirconia ceramic abrasive wheel and preparation method |
| CN104261821A (en) * | 2014-09-12 | 2015-01-07 | 李正国 | Process for manufacturing super-wearable zirconia ceramic extrusion head |
| CN108484165A (en) * | 2018-06-13 | 2018-09-04 | 哈尔滨宇航精创科技有限公司 | A kind of manufacturing method of aluminium oxide toughening compound zirconia artificial tooth porcelain block |
| CN108484165B (en) * | 2018-06-13 | 2020-06-23 | 哈尔滨宇航精创科技有限公司 | Method for manufacturing aluminum oxide toughened composite zirconium oxide denture porcelain block |
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Open date: 20100428 |