CN103074032B - Rare earth corundum composite abrasive - Google Patents
Rare earth corundum composite abrasive Download PDFInfo
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- CN103074032B CN103074032B CN201110329416.4A CN201110329416A CN103074032B CN 103074032 B CN103074032 B CN 103074032B CN 201110329416 A CN201110329416 A CN 201110329416A CN 103074032 B CN103074032 B CN 103074032B
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- abrasive
- corundum
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- rare earth
- ceo
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Abstract
The invention relates to an industrial grinding tool material processing technology, and relates to a rare earth corundum composite abrasive. The abrasive comprises chemical components of, by weight, 0.2-0.36% of SiO2, 0.38-0.68% of Fe2O3, 1.65-2.00% of TiO2, 24.25-39.78% of ZrO2, 0.6-1.02% of CeO2, 1.0-3.0% of Y2O3, 1.0-2.0% of HfO2, and balance of Al2O3. The production process flow comprises the steps that: zirconium corundum pre-smelting is carried out; premixing is carried out, and cerium dioxide is added, secondary mixing is carried out, and Y2O3 and HfO2 additives are added; smelting is carried out under a temperature controlled at 2900 DEG C; crystallization and granulation are carried out; cooling is carried out; and inspection and packaging are carried out. The toughness and hardness of the abrasive provided by the invention are greatly higher than those of common brown corundum abrasive, such that the abrasive can be applied in wider ranges. The abrasive has an advantage of low high-temperature hardness reduction. Therefore, a defect of drastically reduced hardness of a traditional abrasive under high temperature is overcome; and a problem of high-temperature bonding is well solved. The abrasive is mainly used for manufacturing high-performance coating grinding tool.
Description
Technical field
The present invention relates to industrial grinding tool materials processing technology, especially a kind of rare earth corundum compounded abrasive and producing and manufacturing technique thereof.
Background technology
Abrasive material is the indispensable base mateiral of industrial production grinding tool, and the performance of abrasive material directly affects grinding precision and the work-ing life of grinding tool.Corundum material is the current abrasive material of widespread use the most, and except brown corundum and white fused alumina, other is all the compounded abrasive with certain property substantially, and Zirconium oxide plasticizing corundum abrasive (hereinafter to be referred as zircon corundum) just belongs to one of compounded abrasive.At present these corundum abrasives due to toughness and hardness not high, the higher needs of industrial production processing can not have been met, although the toughness of zircon corundum compounded abrasive increases, but its hardness is still not high, particularly deposit the shortcoming that at high temperature hardness sharply reduces, therefore existing common corundum abrasive material and zircon corundum compounded abrasive are for the manufacture of grinding tool, and work-ing life is short, grinding efficiency is low, and the high precision that can not meet some special steels is ground.
Summary of the invention
Object of the present invention to solve exactly existing abrasive material toughness and hardness not high enough, the grinding tool of manufacture is short work-ing life, grinding efficiency is low, can not meet the problem that the high precision of some special steels grind to require, and a kind of rare earth corundum compounded abrasive is provided.
The present invention proposes following three kinds of concrete schemes:
Scheme one: the rare earth corundum compounded abrasive that a kind of model is ZA25, its chemical component weight per-cent is: SiO
2 0.2, Fe
2 o
3 0.38, TiO
2 1.65, ZrO
2 24.25, CeO
2 1.0, Y
2 o
3 1.0, HfO
2 1.0, surplus is AL
2 o
3 .
Scheme two: the rare earth corundum compounded abrasive that a kind of model is ZA30, its chemical component weight per-cent is: SiO
2 0.2, Fe
2 o
3 0.38, TiO
2 1.65, ZrO
2 24.25, CeO
2 1.0, Y
2 o
3 2.0, HfO
2 1.5, surplus is AL
2 o
3 .
Scheme three: the rare earth corundum compounded abrasive that a kind of model is ZA40, its chemical component weight per-cent is: SiO
2 0.2, Fe
2 o
3 0.38, TiO
2 1.65, ZrO
2 24.25, CeO
2 1.0, Y
2 o
3 2.0, HfO
2 3.0, surplus is AL
2 o
3 .
[0005]the processing method of producing above-mentioned three kinds of rare earth corundum compounded abrasives, is characterized in that: comprise following technical process: just refine → premix of zircon corundum drops into cerium dioxide → compound and adds Y
2 o
3 and HFO
2 2900 ℃ of melting → crystallization granulations of additive → control temperature → cooling → detection → packing.
Abrasive material provided by the invention is that in common zircon corundum abrasive material, to be also added with weight percent be 0.6～1.02% CeO not waiting simultaneously
2.In its process of preparing, add HfO2 to improve transformation temperature; Obtain one can the tetragonal and cubic crystal solution area of phase transformation after, then increase Y
2 o
3 content obtains one from CeO
2fusing point is to room temperature stable even cube of CeO all
2solution area.CeO
2middle interpolation Y
2 o
3 reduce martensitic transformation temperature, guarantee that t-CeO occurs material surface
2-m-CeO
2martensitic transformation, CeO in abrasive material
2be mainly tetragonal.Disperse by cerium oxide particles is compound, can improve significantly toughness or the high-temperature behavior of body material.Be a kind of hi tech and new material, there is special dendroid microlitic structure, the feature such as it has, and intensity is high, good toughness, self-sharpening are good.Cerium dioxide strengthens zircon corundum abrasive material heavy loading snagging abrasive wheel and corundum sand wheel compares, its grinding ratio is that (brown corundum heavy load snagging abrasive wheel grinding ratio is 5-6 for 10 times of corundum sand wheel, cerium dioxide strengthens zircon corundum abrasive material heavy loading snagging abrasive wheel grinding ratio and is generally greater than 60), and grinding efficiency is high, thick being easy to of abrasive dust reclaimed, the main range of application of high speed heavy load emery wheel is steel industry, is mainly used in the reconditioning of large-scale steel billet, foundry goods, especially the reconditioning of special steel.In addition, the mill rail emery wheel that abrasive material of the present invention is made has also been obtained comparatively satisfied result of use after having carried out the test of mill rail.Abrasive material of the present invention no matter be in toughness or hardness, all than common brown corundum, be eager to excel a lot, thereby can make it in more scope, be applied.It is little that rare earth corundum compounded abrasive has advantages of that hot hardness goes down, and overcome the shortcoming sharply reducing under traditional brown corundum and zircon corundum abrasive hardness high temperature, and it,, under 1200 degrees Celsius, still has 1070KG/cm
2 high strength, well solved high temperature bonding problem.
Accompanying drawing explanation
Fig. 1 is zircon corundum-CeO
2binary constitutional diagram;
Fig. 2 is I place enlarged view in Fig. 1;
Fig. 3 is the comparative graph of the toughness of abrasive material of the present invention and common brown corundum;
Fig. 4 is abrasive material of the present invention and the hardness comparative graph of common brown corundum under differing temps.
In figure: QE is eutectic temperature, according to data with different introduction between 2710 ℃-2870 ℃.We is eutectic composition (CeO
2=42.6%); W is product composition (CeO in figure
2=40%) eutectic point each other; E1 is pseudoeutectic point.
Embodiment
Example 1: the rare earth corundum compounded abrasive that a kind of model is ZA25, its chemical component weight per-cent is: SiO
2 0.2, Fe
2 o
3 0.38, TiO
2 1.65, ZrO
2 24.25, CeO
2 1.0%, Y
2 o
3 1.0, HfO
2 1.0, surplus is AL
2 o
3 .
Produce the technical process of above-mentioned abrasive material: just refine → premix of zircon corundum drops into cerium dioxide → compound and adds Y
2 o
3 and HFO
2 2900 ℃ of melting → crystallization granulations of additive → control temperature → cooling → detection → packing.
Example 2: the rare earth corundum compounded abrasive that a kind of model is ZA30, its chemical component weight per-cent is: SiO
2 0.2, Fe
2 o
3 0.38, TiO
2 1.65, ZrO
2 24.25, CeO
2 1.0%, Y
2 o
3 2.0, HfO
2 1.5, surplus is AL
2 o
3 .
Produce the technical process of above-mentioned abrasive material: just refine → premix of zircon corundum drops into cerium dioxide → compound and adds Y
2 o
3 and HFO
2 2900 ℃ of melting → crystallization granulations of additive → control temperature → cooling → detection → packing.
Example 3: the rare earth corundum compounded abrasive that a kind of model is ZA40, its chemical component weight per-cent is: SiO
2 0.2, Fe
2 o
3 0.38, TiO
2 1.65, ZrO
2 24.25, CeO
2 1.0%, Y
2 o
3 2.0, HfO
2 3.0, surplus is AL
2 o
3 .
Produce the technical process of above-mentioned abrasive material: just refine → premix of zircon corundum drops into cerium dioxide → compound and adds Y
2 o
3 and HFO
2 2900 ℃ of melting → crystallization granulations of additive → control temperature → cooling → detection → packing.
The composition that in the present invention, cerium dioxide strengthens zircon corundum abrasive material is generally all controlled at eutectic point take and guarantee that zircon corundum is the matrix of material mutually by zircon corundum one side (referring to Fig. 1,2), although its fusing point relatively low (1800 ℃-2050 ℃).But for impurity in melt is fully reduced, remove, control certain atmosphere of smelting, guarantee that arc power delivers to load, guarantee that refining time is enough, just can reach the smelting object of output high-quality melt.According to CeO
2 zircon corundum binary phase diagram (Fig. 1) is analyzed: when in process of cooling, the temperature of high-temperature fusant drops to AE zircon corundum solidus curve, zircon corundum starts crystallization, and forms α-A1 in AEQ region
2 o
3 with the mixed phase of melt, when temperature continues to be reduced to eutectic temperature QE, cerium dioxide crystallization starts to occur, and with α-A1
2 o
3 form mutually eutectic, cooling net result is with regard to CeO
2 it is the material that disperse is distributed in zircon corundum eutectic phase.In addition, in controlling technological process, also to add Y
2 o
3 deng other rare earth oxide as crystalline phase stablizer, these stablizers can and CeO
2 form cube sosoloid, the fast cooling cube sosoloid obtaining can keep stable, does not undergo phase transition and decomposes.Y
2 o
3 -CeO
2 the most important feature of phasor is cubic CeO
2 be phase-changed into monocline CeO
2 temperature with Y
2 o
3 the increase of add-on and reducing; Add HfO
2 can improve transformation temperature; Have one can phase transformation tetragonal and cubic crystal solution area, then increase Y
2 o
3 content obtains one from CeO
2 fusing point is to room temperature stable even cube of CeO all
2 solution area.Due at CeO
2 middle interpolation Y
2 o
3 martensitic transformation temperature can be reduced, when ceria particles size is larger, still Tetragonal CeO can be kept
2 .As under certain transformation temperature, keep cubic CeO
2 critical size with the Y adding
2 o
3 the increase of content and increasing.Therefore in the present invention, select Y
2 o
3 make crystalline phase stablizer, make the present invention there is better toughness and hardness, referring to Fig. 3, schematic diagram for the comparison of the toughness of abrasive material of the present invention and common brown corundum, referring to Fig. 4, the hardness under differing temps for abrasive material of the present invention and common brown corundum, can find out abrasive material of the present invention no matter be to be all eager to excel much than common brown corundum in toughness or hardness in Fig. 3 and Fig. 4, thereby can make it in more scope, apply.
At cerium dioxide, strengthen zircon corundum in zircon corundum abrasive material and be external phase distribution, be called matrix phase, cerium dioxide is discontinuous phase and distributes, and is called reinforcement phase.It is to control certain cooling conditions after adding cerium dioxide and additive to enter the high melt of 2866 ℃ of left and right in the smelting process of zircon corundum in electric arc furnace that cerium dioxide strengthens zircon corundum abrasive material, make its chemical composition that reaches particular requirement and form corresponding crystalline structure, and making by corresponding processing pelletization.Disperse by cerium oxide particles is compound, can improve significantly toughness or the high-temperature behavior of body material.Be a kind of hi tech and new material, there is special dendroid microlitic structure, the feature such as it has, and intensity is high, good toughness, self-sharpening are good, its appearance is an important breakthrough of grinding technique, its many special performances make traditional brown corundum abrasive too far behind to catch up.Electric smelting cerium dioxide strengthens zircon corundum abrasive material heavy loading snagging abrasive wheel and corundum sand wheel compares, its grinding ratio is that (brown corundum heavy load snagging abrasive wheel grinding ratio is 5-6 for 10 times of corundum sand wheel, electric smelting cerium dioxide strengthens zircon corundum abrasive material heavy loading snagging abrasive wheel grinding ratio and is generally greater than 60), and grinding efficiency is high, thick being easy to of grinding reclaimed, the main range of application of high speed heavy load emery wheel is steel industry, is mainly used in the reconditioning of large-scale steel billet, foundry goods, especially the reconditioning of special steel.In addition, the mill rail emery wheel that cerium dioxide enhancing zircon corundum abrasive material is made has also been obtained comparatively satisfied result of use after having carried out the test of mill rail.
Claims (4)
1. the rare earth corundum compounded abrasive that model is ZA25, its chemical component weight per-cent is: SiO
2 0.2, Fe
2 o
3 0.38, TiO
2 1.65, ZrO
2 24.25, CeO
2 1.0, Y
2 o
3 1.0, HfO
2 1.0, surplus is AL
2 o
3 .
2. the rare earth corundum compounded abrasive that model is ZA30, its chemical component weight per-cent is: SiO
2 0.2, Fe
2 o
3 0.38, TiO
2 1.65, ZrO
2 24.25, CeO
2 1.0, Y
2 o
3 2.0, HfO
2 1.5, surplus is AL
2 o
3 .
3. the rare earth corundum compounded abrasive that model is ZA40, its chemical component weight per-cent is: SiO
2 0.2, Fe
2 o
3 0.38, TiO
2 1.65, ZrO
2 24.25, CeO
2 1.0, Y
2 o
3 2.0, HfO
2 3.0, surplus is AL
2 o
3 .
4. the processing method of one of production claim 1-3 is any described rare earth corundum compounded abrasive, is characterized in that: comprise following technical process: just refine → premix of zircon corundum drops into cerium dioxide → compound and adds Y
2 o
3 and HFO
2 2900 ℃ of melting → crystallization granulations of additive → control temperature → cooling → detection → packing.
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|---|---|---|---|
| CN201110329416.4A CN103074032B (en) | 2011-10-26 | 2011-10-26 | Rare earth corundum composite abrasive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110329416.4A CN103074032B (en) | 2011-10-26 | 2011-10-26 | Rare earth corundum composite abrasive |
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| CN103074032A CN103074032A (en) | 2013-05-01 |
| CN103074032B true CN103074032B (en) | 2014-03-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566414A (en) * | 2016-10-28 | 2017-04-19 | 扬州翠佛堂珠宝有限公司 | Jade polishing powder with high polishing efficiency |
| CN107541189A (en) * | 2017-08-22 | 2018-01-05 | 郑州威源新材料有限公司 | A kind of production method for ensureing that fused alumina zirconia abrasive grain composition is stable |
| CN107488439A (en) * | 2017-09-30 | 2017-12-19 | 南京航空航天大学 | A kind of grinding and polishing glass abrasive compound and preparation method thereof |
| KR102632104B1 (en) * | 2017-11-30 | 2024-02-02 | 솔브레인 주식회사 | Slurry composition for polishing, method for producing the same and method for polishing semiconductor thin film by using the same |
| CN113897177A (en) * | 2021-09-03 | 2022-01-07 | 永州市湘江稀土有限责任公司 | Composite oxide abrasive particle and preparation method thereof |
Citations (5)
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|---|---|---|---|---|
| CN1261093A (en) * | 1999-01-15 | 2000-07-26 | 李霞 | Grinding body of brown corundum and preparing process thereof |
| CN1537084A (en) * | 2001-08-02 | 2004-10-13 | 3M创新有限公司 | Aluminium-zirconium oxide and their preparing and using method |
| CN1636046A (en) * | 2001-08-02 | 2005-07-06 | 3M创新有限公司 | Abrasive particles and methods of making and using the same |
| CN101001817A (en) * | 2004-06-24 | 2007-07-18 | 圣戈班欧洲设计研究中心 | Mixture of molten alumina-zirconia grains |
| WO2010105072A2 (en) * | 2009-03-11 | 2010-09-16 | Saint-Gobain Abrasives, Inc. | Abrasive articles including fused zirconia alumina grain having an improved shape |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0383966A (en) * | 1989-08-25 | 1991-04-09 | Motoo Shigeyasu | Production of aromatic carboxylic acid having sulfonyl group |
| JPH09183966A (en) * | 1995-12-29 | 1997-07-15 | Seimi Chem Co Ltd | Production of cerium abrasive |
-
2011
- 2011-10-26 CN CN201110329416.4A patent/CN103074032B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261093A (en) * | 1999-01-15 | 2000-07-26 | 李霞 | Grinding body of brown corundum and preparing process thereof |
| CN1537084A (en) * | 2001-08-02 | 2004-10-13 | 3M创新有限公司 | Aluminium-zirconium oxide and their preparing and using method |
| CN1636046A (en) * | 2001-08-02 | 2005-07-06 | 3M创新有限公司 | Abrasive particles and methods of making and using the same |
| CN101001817A (en) * | 2004-06-24 | 2007-07-18 | 圣戈班欧洲设计研究中心 | Mixture of molten alumina-zirconia grains |
| WO2010105072A2 (en) * | 2009-03-11 | 2010-09-16 | Saint-Gobain Abrasives, Inc. | Abrasive articles including fused zirconia alumina grain having an improved shape |
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| CN103074032A (en) | 2013-05-01 |
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Owner name: ZHAN XUELIANG Free format text: FORMER OWNER: HUBEI TIANMA GRINDING MATERIAL CO., LTD. Effective date: 20131211 |
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Effective date of registration: 20131211 Address after: 438800 Huanggang City, Hubei Province, Tuanfeng County South Industrial Park Road 2 Applicant after: Zhan Xueliang Address before: Huanggang City, Hubei province 438800 City, Tuanfeng County Applicant before: Hubei Tianma Grinding Material Co., Ltd. |
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