CN113997212A - Preparation of ceramic bonding agent for CBN super-fine oilstone - Google Patents
Preparation of ceramic bonding agent for CBN super-fine oilstone Download PDFInfo
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- CN113997212A CN113997212A CN202111297303.0A CN202111297303A CN113997212A CN 113997212 A CN113997212 A CN 113997212A CN 202111297303 A CN202111297303 A CN 202111297303A CN 113997212 A CN113997212 A CN 113997212A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000007767 bonding agent Substances 0.000 title claims abstract description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000000227 grinding Methods 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052810 boron oxide Inorganic materials 0.000 claims abstract description 18
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 18
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 14
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 14
- 229910001610 cryolite Inorganic materials 0.000 claims abstract description 14
- IOXPXHVBWFDRGS-UHFFFAOYSA-N hept-6-enal Chemical compound C=CCCCCC=O IOXPXHVBWFDRGS-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000498 ball milling Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 18
- 239000011230 binding agent Substances 0.000 abstract description 8
- 229910052582 BN Inorganic materials 0.000 abstract description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
Abstract
The invention relates to the technical field of grinding wheel binders, in particular to a preparation method of a ceramic binder for CBN (cubic boron nitride) super-fine oilstone. The invention provides a preparation method of a ceramic bonding agent for CBN (cubic boron nitride) super-fine oilstone. The preparation of ceramic bond for CBN super-fine oilstone comprises aluminum oxide, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate, alkali metal and pore-forming agent; the pore-forming agent is activated carbon; mixing aluminum oxide, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate and alkali metal uniformly, and then ball-milling and grinding uniformly. Compared with the prior art, the ceramic bonding agent prepared by the preparation method provided by the invention has stronger bending resistance.
Description
Technical Field
The invention relates to the technical field of grinding wheel binders, in particular to a preparation method of a ceramic binder for CBN (cubic boron nitride) super-fine oilstone.
Background
The grinding wheel bonding agent is a material which bonds the grinding materials and ensures that the grinding tool is not damaged in the grinding process. The bonding agent exists in the grinding tool by holding the grinding material, the distribution condition of the bonding agent is two, the bonding agent covers the grinding material or generates physical and chemical changes on the surface of the grinding material to form a transition connection layer of the bonding agent and the grinding material, and the bonding agent has certain bonding strength; the abrasive is connected with the abrasive in the form of a bond bridge, and the strength of the bond bridge is determined by the strength of the bond. Therefore, the bonding agent should have high toughness, good high-temperature fluidity and wettability to the abrasive, a thermal expansion coefficient close to that of the abrasive and a proper elastic modulus.
The ceramic bond has the advantages of strong abrasive retention, long service life, good high-temperature performance, easy modification of the grinding tool in the using process, good self-sharpening performance, high grinding efficiency and the like, and is increasingly widely applied. The ceramic microcrystalline abrasive grinding wheel is a class of grinding wheels which use ceramic bond as a bonding agent and are used for grinding gears, and has the advantages of high grinding efficiency, high processing precision and the like.
The existing ceramic microcrystalline abrasive grinding wheel made of ceramic bond has the problems of burning loss of ceramic microcrystalline abrasive in the sintering process, damage to the crystal form integrity of microcrystalline abrasive, crack, strength reduction and the like, and further influences the performance of the grinding wheel because the existing ceramic microcrystalline abrasive grinding wheel has large brittleness and low tensile strength, and therefore, the revolving rupture strength with the safety factor of more than 2.0 required by use safety is required to be achieved, the existing ceramic microcrystalline abrasive grinding wheel made of ceramic bond reaches the use linear speed of less than 60m/s, and the existing ceramic bond has high sintering temperature.
Therefore, a preparation method of ceramic bond for CBN super-fine oilstone with strong bending resistance is needed.
Disclosure of Invention
In order to overcome the defect of low bending resistance of the conventional ceramic bonding agent after firing, the invention provides a preparation method of a CBN ceramic bonding agent for super-fine oilstone with strong bending resistance
In order to achieve the purpose, the invention provides the following technical scheme: the preparation method of the ceramic bonding agent for the CBN super-fine oilstone comprises the following steps of preparing alumina, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate, alkali metal and a pore-forming agent, wherein the content of the alumina is 14-17 wt%; the content of boron oxide is 13-19 wt%; the content of silicon oxide is 48-54 wt%; the titanium dioxide content was 6 wt%; the content of sodium hexafluoroaluminate is 5 wt%; the alkali metal content is 2-8 wt%; the content of the pore-forming agent is 2-8 wt%.
Preferably, the pore-forming agent is activated carbon.
Preferably, the ceramic binder is granular and has an average particle size of 5-10 μm.
Preferably, the binding agent is prepared by the following steps:
(1) taking aluminum oxide, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate and alkali metal according to the formula amount, and uniformly mixing to obtain a mixture a.
(2) Heating and melting the mixture a prepared in the step (1) to prepare a mixture b.
(3) And (3) water-quenching the mixture b prepared in the step (2) to obtain a mixture c.
(4) Drying the mixture c prepared in the step (3).
(5) And (4) performing ball milling and crushing on the mixture c dried in the step (4), and sieving to obtain a mixture d.
(6) Adding activated carbon into the mixture d prepared in the step (5) according to the formula amount, uniformly mixing,
sieving to obtain the final product.
Preferably, the specific method for uniformly mixing in step (1) is as follows: mixing aluminum oxide, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate and alkali metal uniformly, and then ball-milling and grinding uniformly.
Preferably, the specific method of heating and melting in step (2) is as follows: heating the mixture a to 720-800 ℃ in an air atmosphere for smelting until the mixture is completely molten.
According to the technical scheme, compared with the prior art, the ceramic bonding agent prepared by the preparation method provided by the invention has stronger bending resistance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a graph showing the effect of the alumina of the present invention on the bending resistance.
FIG. 2 is a graph showing the effect of boron oxide of the present invention on bending resistance.
FIG. 3 is a graph of the effect of silicon oxide of the present invention on bending resistance.
FIG. 4 is a graph of the effect of different levels of titanium dioxide on the ability to resist buckling at different temperatures according to the present invention.
Fig. 5 is a graph of the effect of abrasive particle size on resistance to buckling of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A preparation method of ceramic bond for CBN super-fine oilstone is shown in figures 1-5, and comprises alumina, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate, alkali metal and pore-forming agent, wherein the content of alumina is 14-17 wt%; the content of boron oxide is 13-19 wt%; the content of silicon oxide is 48-54 wt%; the titanium dioxide content was 6 wt%; the content of sodium hexafluoroaluminate is 5 wt%; the alkali metal content is 2-8 wt%; the content of the pore-forming agent is 2-8 wt%.
Preferably, the pore-forming agent is activated carbon.
Preferably, the ceramic binder is granular and has an average particle size of 5-10 μm.
Preferably, the binding agent is prepared by the following steps:
(1) taking aluminum oxide, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate and alkali metal according to the formula amount, and uniformly mixing to obtain a mixture a.
(2) Heating and melting the mixture a prepared in the step (1) to prepare a mixture b.
(3) And (3) water-quenching the mixture b prepared in the step (2) to obtain a mixture c.
(4) Drying the mixture c prepared in the step (3).
(5) And (4) performing ball milling and crushing on the mixture c dried in the step (4), and sieving to obtain a mixture d.
(6) Adding activated carbon into the mixture d prepared in the step (5) according to the formula amount, uniformly mixing,
sieving to obtain the final product.
Preferably, the specific method for uniformly mixing in step (1) is as follows: mixing aluminum oxide, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate and alkali metal uniformly, and then ball-milling and grinding uniformly.
Preferably, the specific method of heating and melting in step (2) is as follows: heating the mixture a to 720-800 ℃ in an air atmosphere for smelting until the mixture is completely molten.
As shown in FIG. 1, the vertical axis represents the bending strength, the horizontal axis represents the content of alumina, and when the content of alumina is in the range of 14 to 17 wt%, the more the content of alumina is, the stronger the bending resistance is.
As shown in FIG. 2, the vertical axis represents the bending strength, the horizontal axis represents the content of boron oxide, and when the content of boron oxide is in the range of 13 to 19 wt%, the more the content of boron oxide, the stronger the bending resistance.
As shown in FIG. 3, the vertical axis represents the bending strength, the horizontal axis represents the content of silicon oxide, and when the content of silicon oxide is in the range of 48 to 54 wt%, the bending resistance is increased and then decreased as the content of silicon oxide is increased.
As shown in FIG. 4, the vertical axis represents the bending strength, the horizontal axis represents the temperature, and the bending strength is enhanced with the increase of the temperature only at 6% of the titanium dioxide content after firing at different temperatures in the range of 720-800 ℃.
As shown in fig. 5, the vertical axis represents the bending strength, the horizontal axis represents the grain size, the bending strength increases with increasing grain size only in the range of 5 to 10 μm, and the curve growth rate is more average.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The preparation method of the ceramic bonding agent for the CBN super-fine oilstone comprises alumina, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate, alkali metal and a pore-forming agent, and is characterized in that the content of the alumina is 14-17 wt%; the content of boron oxide is 13-19 wt%; the content of silicon oxide is 48-54 wt%; the titanium dioxide content was 6 wt%; the content of sodium hexafluoroaluminate is 5 wt%; the alkali metal content is 2-8 wt%; the content of the pore-forming agent is 2-8 wt%.
2. The preparation method of the ceramic bond for CBN super-fine oilstone as claimed in claim 1, wherein the pore-forming agent is activated carbon.
3. The preparation of the ceramic bond for CBN super-fine oilstone as claimed in claim 2, wherein the ceramic bond is granular and has an average particle size of 5-10 μm.
4. The preparation method of the ceramic bond for CBN super-fine oilstone as claimed in claim 3, wherein the ceramic bond is prepared by the following steps:
(1) taking aluminum oxide, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate and alkali metal according to the formula amount, and uniformly mixing to obtain a mixture a.
(2) Heating and melting the mixture a prepared in the step (1) to prepare a mixture b.
(3) And (3) water-quenching the mixture b prepared in the step (2) to obtain a mixture c.
(4) Drying the mixture c prepared in the step (3).
(5) And (4) performing ball milling and crushing on the mixture c dried in the step (4), and sieving to obtain a mixture d.
(6) And (4) adding activated carbon into the mixture d prepared in the step (5) according to the formula amount, uniformly mixing, and sieving to obtain a finished product.
5. The preparation method of the ceramic bond for CBN super-fine oilstone as claimed in claim 4, wherein the specific method for uniformly mixing in the step (1) is as follows: mixing aluminum oxide, boron oxide, silicon oxide, titanium dioxide, sodium hexafluoroaluminate and alkali metal uniformly, and then ball-milling and grinding uniformly.
6. The preparation method of the ceramic bond for CBN super-fine oilstone as claimed in claim 5, wherein the specific method for heating and melting in step (2) is as follows: heating the mixture a to 720-800 ℃ in an air atmosphere for smelting until the mixture is completely molten.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0839434A (en) * | 1994-07-27 | 1996-02-13 | Mitsubishi Materials Corp | Vitrified bond cubic boron nitride grinding wheel displaying high grinding ratio |
| RU2010111430A (en) * | 2009-07-02 | 2011-10-10 | Бест-Бизнесс, а.с. (CZ) | CERAMIC LINK |
| CN102814748A (en) * | 2011-06-09 | 2012-12-12 | 沈阳中科超硬磨具磨削研究所 | High-speed CBN (cubic boron nitride) ceramic grinding wheel for high-speed grinding of profile grinder, preparation method and application |
| CN102837266A (en) * | 2012-08-29 | 2012-12-26 | 天津大学 | Ceramic bond CBN (Cubic Boron Nitride) abrasive wheel for double end surface grinding |
| CN103223644A (en) * | 2013-04-10 | 2013-07-31 | 天津大学 | Vitrified bond cubic boron nitride (CBN) grinding wheel for grinding titanium alloy |
| CN105236993A (en) * | 2015-09-18 | 2016-01-13 | 长沙玳蒙德超硬工具有限公司 | Li2O-P2O5-B2O3-TiO2 ceramic flux and preparation method thereof |
| CN105252435A (en) * | 2015-11-03 | 2016-01-20 | 白鸽磨料磨具有限公司 | Microcrystalline glass ceramic binding agent, preparing method thereof, SG grinding wheel and preparing method thereof |
| CN105948507A (en) * | 2016-05-11 | 2016-09-21 | 江苏耐锐特磨料磨具有限公司 | Low-temperature and low-softening microcrystalline glass ceramic binding agent for abrasive tools and preparation method of binding agent |
-
2021
- 2021-11-04 CN CN202111297303.0A patent/CN113997212A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0839434A (en) * | 1994-07-27 | 1996-02-13 | Mitsubishi Materials Corp | Vitrified bond cubic boron nitride grinding wheel displaying high grinding ratio |
| RU2010111430A (en) * | 2009-07-02 | 2011-10-10 | Бест-Бизнесс, а.с. (CZ) | CERAMIC LINK |
| CN102814748A (en) * | 2011-06-09 | 2012-12-12 | 沈阳中科超硬磨具磨削研究所 | High-speed CBN (cubic boron nitride) ceramic grinding wheel for high-speed grinding of profile grinder, preparation method and application |
| CN102837266A (en) * | 2012-08-29 | 2012-12-26 | 天津大学 | Ceramic bond CBN (Cubic Boron Nitride) abrasive wheel for double end surface grinding |
| CN103223644A (en) * | 2013-04-10 | 2013-07-31 | 天津大学 | Vitrified bond cubic boron nitride (CBN) grinding wheel for grinding titanium alloy |
| CN105236993A (en) * | 2015-09-18 | 2016-01-13 | 长沙玳蒙德超硬工具有限公司 | Li2O-P2O5-B2O3-TiO2 ceramic flux and preparation method thereof |
| CN105252435A (en) * | 2015-11-03 | 2016-01-20 | 白鸽磨料磨具有限公司 | Microcrystalline glass ceramic binding agent, preparing method thereof, SG grinding wheel and preparing method thereof |
| CN105948507A (en) * | 2016-05-11 | 2016-09-21 | 江苏耐锐特磨料磨具有限公司 | Low-temperature and low-softening microcrystalline glass ceramic binding agent for abrasive tools and preparation method of binding agent |
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