CN114350316A - Composite abrasive material and preparation method and application thereof - Google Patents
Composite abrasive material and preparation method and application thereof Download PDFInfo
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- CN114350316A CN114350316A CN202111470769.6A CN202111470769A CN114350316A CN 114350316 A CN114350316 A CN 114350316A CN 202111470769 A CN202111470769 A CN 202111470769A CN 114350316 A CN114350316 A CN 114350316A
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- Prior art keywords
- abrasive
- composite abrasive
- abrasive material
- composite
- corundum
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- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003082 abrasive agent Substances 0.000 title abstract description 24
- 238000000227 grinding Methods 0.000 claims abstract description 30
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 18
- 239000010431 corundum Substances 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 3
- 239000011651 chromium Substances 0.000 claims abstract description 3
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 229910000838 Al alloy Inorganic materials 0.000 claims description 17
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000001488 sodium phosphate Substances 0.000 claims description 6
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 6
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 6
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 150000007524 organic acids Chemical class 0.000 claims description 5
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 7
- 230000008021 deposition Effects 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000843 powder Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000009210 therapy by ultrasound Methods 0.000 description 6
- 244000269722 Thea sinensis Species 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 239000011259 mixed solution Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000001397 quillaja saponaria molina bark Substances 0.000 description 2
- 229930182490 saponin Natural products 0.000 description 2
- 150000007949 saponins Chemical class 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- KBEFBSGNGSLHOD-UHFFFAOYSA-N 4-methylpentane-1,1-diol Chemical compound CC(C)CCC(O)O KBEFBSGNGSLHOD-UHFFFAOYSA-N 0.000 description 1
- 241000931143 Gleditsia sinensis Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
Abstract
The invention discloses a composite abrasive material and a preparation method and application thereof, wherein the composite abrasive material comprises the following preparation raw materials: the abrasive material comprises at least one of white corundum, brown corundum, zirconium corundum and chromium corundum, the particle size of the abrasive material is 500-800 meshes, the abrasive material is not easy to agglomerate after being deposited by changing the surface property of the abrasive material through the silica sol, and the cutting capability of the abrasive material is not influenced, so that the grinding fluid containing the coarse abrasive material and free of deposition hardening is obtained.
Description
Technical Field
The invention belongs to the technical field of metal surface treatment, and particularly relates to a composite abrasive material and a preparation method and application thereof.
Background
Aluminum alloys typically require grinding of their surfaces during production processes in order to obtain good surface flatness and smoothness. The grinding is carried out by a complex relative movement of the grinding tool and the processing surface under a certain pressure. The grinding liquid (containing the grinding material and the auxiliary components) between the grinding tool and the workpiece respectively has a mechanical cutting function, a physical function and a chemical function in the relative motion, so that the grinding material can cut off a very thin layer of material on the surface of the workpiece, and the workpiece with extremely high dimensional precision and extremely low surface roughness is obtained.
In the course of rough grinding of aluminum alloy, grinding fluid containing coarser grinding material is usually used in order to obtain large cutting amount, thereby achieving the effect of rapid leveling. However, the addition of a coarser abrasive will deposit on the bottom of the slurry due to gravity, resulting in a layer of cement-like agglomerates. Such plate agglomerates cannot be redispersed in the slurry by simple shaking, thereby affecting the normal use of the slurry. In the prior art, the abrasive can be suspended by adding a dispersing or suspending agent. However, the method is only suitable for fine abrasives with small particle size, and the effect is not obvious for processing coarser abrasives.
Therefore, it is necessary to develop an abrasive slurry to prevent the deposition and hardening of coarse abrasives during application.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. Therefore, the invention provides the composite abrasive, the surface property of the abrasive is changed through the coating formed by the silica sol, so that the abrasive is not easy to agglomerate in the aging process, and the cutting capability of the abrasive is not influenced.
The invention also provides a preparation method of the composite abrasive.
The invention also provides an aluminum alloy rough grinding fluid which comprises the composite abrasive.
According to one aspect of the invention, the composite abrasive is provided, and the preparation raw materials comprise an abrasive and a film;
the film is wrapped on the surface of the abrasive;
the raw material for preparing the coating comprises silica sol.
The particle size of the abrasive is 500-800 meshes.
The composite abrasive material has at least the following beneficial effects:
the surface property of the abrasive is changed through the silica sol, so that the abrasive is not easy to agglomerate after being deposited, and the cutting capability of the abrasive is not influenced.
In some embodiments of the invention, the abrasive comprises at least one of white corundum, brown corundum, zirconium corundum, and chromium corundum;
the particle size of the abrasive is 500-800 meshes.
In some embodiments of the present invention, the silica sol has an average particle size of 41 to 100 nm.
In a second aspect of the present invention, a method of making a composite abrasive material is provided, comprising the steps of,
s1, activating the grinding material, filtering and removing impurities,
s2, putting the product filtered in the step S1 into the silica sol for mixing,
and S3, baking the product mixed in the step S2 to obtain the product.
In some embodiments of the present invention, in step S1, the activated solvent is a mixed solution of sodium hydroxide solution and trisodium phosphate solution.
In some embodiments of the invention, the sodium hydroxide solution is a mixed solution of 0.5% wt sodium hydroxide solution and 0.5% wt trisodium phosphate solution.
In some embodiments of the present invention, the activation temperature in step S1 is 25-35 ℃.
In some embodiments of the invention, in step S1, the activation is performed under ultrasound,
the activation has the function of roughening and hydrophilizing the surface of the abrasive, so that the subsequent acid silica sol can uniformly cover the surface of the abrasive to form a silica sol film.
In some embodiments of the invention, the weight ratio of the abrasive to the activated solvent is 1:1.5 to 5.
In some embodiments of the invention, in the step S1, the ultrasonic treatment time is 20-30 min.
In some embodiments of the invention, the mixing is performed under ultrasound and the weight ratio of abrasive to silica sol is controlled to be 1:1.5-5 in step S2.
The purpose of ultrasonic treatment of the abrasive material by using a solution containing sodium hydroxide and trisodium phosphate at normal temperature is to activate the surface of the abrasive material to obtain subsequent acidic silica sol which can uniformly cover the surface of the abrasive material so as to be coated with a layer of silica sol.
In some embodiments of the present invention, in step S2, the time is 20-30 min.
In some embodiments of the present invention, in step S3, the baking temperature is 120-140 ℃.
In some embodiments of the present invention, in step S3, the baking time is 2-4 h.
The invention provides a rough grinding fluid for aluminum alloy, which comprises the composite abrasive and the composite abrasive prepared by the preparation method of the composite abrasive.
In some embodiments of the invention, the composite abrasive material comprises, by weight, 20-40 parts of the composite abrasive material, 1-5 parts of the anti-caking agent, 0.5-3 parts of the organic acid, 1-8 parts of the lubricant, and 50-70 parts of water.
In some embodiments of the invention, the anti-hardening agent comprises at least one of tea seed powder and saponin powder, and the mesh number of the anti-hardening agent is 200-500 meshes.
In some embodiments of the invention, the organic acid comprises at least one of citric acid and glycolic acid.
In some embodiments of the present invention, the lubricant comprises at least one of pentaerythritol and isohexide.
The addition of the surface anti-caking agent further increases the looseness of the deposited layer of the grinding fluid, thereby further preventing the abrasive from depositing and hardening. Meanwhile, the tea seed powder and the saponin powder which are used as the anti-caking agent can play a certain lubricating and brightening effect in the grinding process.
The addition of the organic acid can increase the chemical etching effect on the aluminum alloy during grinding, so that a larger cutting amount is obtained. In addition, the molecular structures of pentaerythritol and isohexide in the lubricant of the invention contain two or more hydroxyl groups, so that the lubricant has certain lubricating capability under acidic conditions, and the lubricating capability is not too strong while the friction force of the abrasive during cutting is reduced, thereby affecting the grinding efficiency.
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
Example 1
The embodiment prepares the composite abrasive, and the specific process is as follows:
s1, performing ultrasonic treatment on white corundum (600 meshes) with a mixed solution containing 0.5 wt% of sodium hydroxide and 0.5 wt% of trisodium phosphate at normal temperature for 20min, filtering the abrasive, and rinsing the abrasive with pure water.
S2, placing the treated white corundum into silica in silica sol, wherein the average particle size of the silica in the silica sol is 80nm, the pH value is 2-4, the viscosity is 5-7 mPa.s, and carrying out ultrasonic treatment at normal temperature for 20 minutes.
S3, placing the abrasive material with the surface stained with the silica sol in the step S2 into an oven at 120 ℃ for baking for 2 h. The obtained abrasive is coated white corundum, namely the composite coating material.
The silica sol is the conventional silica sol in HG/T2521-2008 industrial silica sol.
Example 2
In this example, an aluminum alloy rough grinding fluid was prepared by mixing the composite abrasive prepared in example 1 and the preparation raw materials shown in table 1 in proportion.
TABLE 1 raw material mixing ratio
| Composite abrasive | 30 portions of |
| Tea seed powder (400 mesh) | 2 portions of |
| Citric acid | 2 portions of |
| Pentaerythritol | 2 portions of |
| Water (W) | 64 portions |
Example 3
The embodiment prepares the composite abrasive, and the specific process is as follows:
s1, performing ultrasonic treatment on brown fused alumina (800 meshes) with a mixed solution containing 0.5% of sodium hydroxide and 0.5% of trisodium phosphate at normal temperature for 20min, filtering the abrasive, and rinsing the abrasive with pure water.
S2, placing the treated white corundum into silica sol, wherein the average particle size of silica sol silica is 80nm, the pH value is 2-4, the viscosity is 5-7 mPa.s, and carrying out ultrasonic treatment at normal temperature for 20 minutes.
S3, placing the abrasive material with the surface stained with the silica sol in the step S2 into an oven at 120 ℃ for baking for 2 h. The obtained abrasive is the film-coated brown corundum, namely the composite film material.
Example 4
In this example, an aluminum alloy rough grinding fluid was prepared by mixing the composite abrasive prepared in example 3 and the preparation raw materials shown in table 2 in proportion.
TABLE 2 raw material mixing ratio
| Composite abrasive | 30 portions of |
| Chinese honeylocust fruit powder (400 mesh) | 2 portions of |
| Glycolic acid | 2 portions of |
| Isohexanediol | 4 portions of |
| Water (W) | 62 portions of |
Comparative example 1
This comparative example prepared an aluminum alloy rough grinding fluid, which was different from example 2 in that 600 mesh white corundum (raw material of example 2) was directly used without coating with silica sol.
Comparative example 2
This example prepared an aluminum alloy kibble, which differs from example 2 in that the tea seed powder of example 2 was not included.
Comparative example 3
This example prepared an aluminum alloy kibble that differed from comparative example 1 in that no tea seed powder was included.
Test examples
The test example tests the performance of the aluminum alloy rough grinding fluid prepared in the example and the comparative example, and the microscopic morphology of the abrasive in the rough grinding fluid under a metallographic microscope, and the test results are shown in table 3.
TABLE 3 coarse grinding liquid test results for aluminum alloys
As can be seen from the examples 2 and 4 in the table 3, the aluminum alloy rough grinding fluid provided by the invention can effectively prevent abrasive deposition hardening. Compared with the comparative example 2 and the comparative example 1, the composite membrane material obtained by the abrasive material through membrane covering treatment can effectively reduce the hardening performance after deposition. Comparing example 2 and comparative example 2, the tea seed powder further increases the loosening property of the abrasive grain deposit layer, thereby further preventing the abrasive grain deposit from hardening. By comparing the microscopic morphology of the coated abrasive and the uncoated abrasive, it can be found that a layer of silica sol film exists on the surface of the coated abrasive, so that the coated abrasive is converted into opaque white particles from transparent crystals.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
1. The composite abrasive is characterized in that the preparation raw materials comprise an abrasive and a film,
the film is wrapped on the surface of the abrasive;
the raw material for preparing the coating comprises silica sol.
2. The composite abrasive according to claim 1, wherein the abrasive comprises at least one of white corundum, brown corundum, zirconium corundum, and chromium corundum; preferably, the first and second electrodes are formed of a metal,
the particle size of the abrasive is 500-800 meshes.
3. The composite abrasive according to claim 1, wherein the silica in the silica sol has an average particle diameter of 41 to 100 nm.
4. A method of making a composite abrasive according to any one of claims 1 to 3, comprising the steps of,
s1, activating the grinding material,
s2, putting the product obtained in the step S1 into the silica sol for mixing,
and S3, baking the product mixed in the step S2 to obtain the product.
5. The method of claim 4, wherein the activating solvent used in step S1 includes sodium hydroxide solution and trisodium phosphate solution.
6. The method for preparing the composite abrasive according to claim 4, wherein in the step S3, the baking temperature is 120-140 ℃ and the baking time is 2-4 h.
7. An aluminum alloy rough grinding fluid, characterized in that a preparation raw material comprises the composite abrasive according to any one of claims 1 to 3.
8. The aluminum alloy rough grinding fluid as recited in claim 7, comprising, by weight, 20-40 parts of the composite abrasive, 1-5 parts of a plate prevention agent, 0.5-3 parts of an organic acid, 1-8 parts of a lubricant, and 50-70 parts of water.
9. The aluminum alloy rough grinding fluid of claim 8, wherein the organic acid comprises at least one of citric acid and glycolic acid.
10. The aluminum alloy rough grinding fluid of claim 8, wherein the lubricant comprises at least one of pentaerythritol and isohexide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111470769.6A CN114350316A (en) | 2021-12-03 | 2021-12-03 | Composite abrasive material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111470769.6A CN114350316A (en) | 2021-12-03 | 2021-12-03 | Composite abrasive material and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114350316A true CN114350316A (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111470769.6A Pending CN114350316A (en) | 2021-12-03 | 2021-12-03 | Composite abrasive material and preparation method and application thereof |
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| Country | Link |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4997461A (en) * | 1989-09-11 | 1991-03-05 | Norton Company | Nitrified bonded sol gel sintered aluminous abrasive bodies |
| US20020090891A1 (en) * | 2000-11-10 | 2002-07-11 | Adefris Negus B. | Composite abrasive particles and method of manufacture |
| US6673132B1 (en) * | 2002-08-20 | 2004-01-06 | Everlight Usa, Inc. | SiO2/Al2O3 composite abrasive and method for producing the same |
| US20050112892A1 (en) * | 2003-11-20 | 2005-05-26 | Eternal Chemical Co., Ltd. | Chemical mechanical abrasive slurry and method of using the same |
| CN101134890A (en) * | 2007-09-18 | 2008-03-05 | 朱辰 | Wettable grinding powder |
| US20140033617A1 (en) * | 2012-07-31 | 2014-02-06 | Lingyu Li | Abrasive Article Comprising Abrasive Particles of a Composite Composition |
| CN105754488A (en) * | 2016-02-22 | 2016-07-13 | 郑州宏基研磨科技有限公司 | Grinding and polishing powder and preparation method thereof |
| CN108192505A (en) * | 2018-02-01 | 2018-06-22 | 湖南有色金属职业技术学院 | A kind of silicon substrate A is to sapphire polishing liquid and preparation method thereof |
| CN113150696A (en) * | 2021-03-01 | 2021-07-23 | 广州凌玮科技股份有限公司 | Polishing solution for reducing micro scratches on surface of silicon wafer |
| CN113683962A (en) * | 2021-08-31 | 2021-11-23 | 马惠琪 | Preparation method of silicon dioxide grinding and polishing agent |
-
2021
- 2021-12-03 CN CN202111470769.6A patent/CN114350316A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4997461A (en) * | 1989-09-11 | 1991-03-05 | Norton Company | Nitrified bonded sol gel sintered aluminous abrasive bodies |
| US20020090891A1 (en) * | 2000-11-10 | 2002-07-11 | Adefris Negus B. | Composite abrasive particles and method of manufacture |
| US6673132B1 (en) * | 2002-08-20 | 2004-01-06 | Everlight Usa, Inc. | SiO2/Al2O3 composite abrasive and method for producing the same |
| US20050112892A1 (en) * | 2003-11-20 | 2005-05-26 | Eternal Chemical Co., Ltd. | Chemical mechanical abrasive slurry and method of using the same |
| CN101134890A (en) * | 2007-09-18 | 2008-03-05 | 朱辰 | Wettable grinding powder |
| US20140033617A1 (en) * | 2012-07-31 | 2014-02-06 | Lingyu Li | Abrasive Article Comprising Abrasive Particles of a Composite Composition |
| CN105754488A (en) * | 2016-02-22 | 2016-07-13 | 郑州宏基研磨科技有限公司 | Grinding and polishing powder and preparation method thereof |
| CN108192505A (en) * | 2018-02-01 | 2018-06-22 | 湖南有色金属职业技术学院 | A kind of silicon substrate A is to sapphire polishing liquid and preparation method thereof |
| CN113150696A (en) * | 2021-03-01 | 2021-07-23 | 广州凌玮科技股份有限公司 | Polishing solution for reducing micro scratches on surface of silicon wafer |
| CN113683962A (en) * | 2021-08-31 | 2021-11-23 | 马惠琪 | Preparation method of silicon dioxide grinding and polishing agent |
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Application publication date: 20220415 |
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