CN106926146B - A kind of nanometer combines superhard micro mist accumulation abrasive material and preparation method thereof - Google Patents
A kind of nanometer combines superhard micro mist accumulation abrasive material and preparation method thereof Download PDFInfo
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- CN106926146B CN106926146B CN201710247267.4A CN201710247267A CN106926146B CN 106926146 B CN106926146 B CN 106926146B CN 201710247267 A CN201710247267 A CN 201710247267A CN 106926146 B CN106926146 B CN 106926146B
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/001—Manufacture of flexible abrasive materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
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Abstract
The invention discloses the preparation methods that a kind of nanometer combines superhard micro mist accumulation abrasive material, belong to superhard material and precision grinding machining field, detailed process are as follows: prepare SiO2Superhard powder is added under ultrasound and mechanical agitation in colloidal sol, persistently stirs 1~3h, and in 80~120 DEG C of dry 1~3h, obtains the superhard micro mist of Surface Oxygen SiClx processing；Then preparation of nano ceramic sol, will treated that superhard micro mist is placed in three-dimensional material mixer, sequentially add poly-vinyl alcohol solution and nano ceramics colloidal sol under stirring, after 2~5h of mixing, 5~10h of aging, dry 3~5h at 100~150 DEG C；2~5h of heat treatment is finally carried out at 450~550 DEG C, is then crushed, sieve classification, and the superhard accumulation abrasive material of nanometer combination is obtained.Outstanding advantages of method provided by the invention solves the problems, such as the superhard powder size reconstruction of fine granularity in a certain range, has at low cost, quick, preparation simply and significant effect relative to high temperature and pressure diauxic growth.
Description
Technical field
The invention belongs to superhard materials and precision grinding machining field, combine superhard micro mist more particularly to a kind of nanometer
Accumulate abrasive material and preparation method thereof.
Background technique
Accumulation abrasive material is by fine granularity abrasive material by the felted agglomeration of binder, and relative to bulky grain abrasive material, it is adding
During work, the advantages that long service life, self-sharpening are high, grinding efficiency is high, cutting force is balanced is shown, therefore, accumulates abrasive material
Attention increasingly by grinding tool manufacturer.
Superhard micro mist refers to that granularity is narrower than 36/54 μm of diamond or cubic boron nitride particle, there is monocrystalline and polycrystalline etc.
Different form.In order to meet customer need, people usually require to carry out grading to superhard material, and larger granularity is general
The product needed is obtained by the method for cracking and sorting；Also have and much directly grow superhard micro mist, usually polycrystalline form.Greatly
Can be crushed, it is very small such as partial size less than 0.5 μm using very extensive, but in 0.5~2 μ m
The application of submicro scale powder is then fewer.
Existing accumulation abrasive material is usually in larger particle size range, the report of powder accumulation abrasive material superhard for Ultra-fine
Also fewer, in addition most accumulation abrasive materials need high-temperature process, and there are the risks of superhard powder oxidation deterioration.
Summary of the invention
In order to solve the problems in the existing technology, the present invention carries out granularity reconstruction using nano-grade ceramic binding agent, mentions
A kind of nanometer of preparation method for combining superhard micro mist accumulation abrasive material is supplied.
Specifically, nanometer provided by the invention combines the preparation method of superhard micro mist accumulation abrasive material, specifically according to following step
It is rapid to implement:
S1: superhard powder surface nanometer cladding processing
S11: measuring silester, dehydrated alcohol and deionized water according to the ratio of volume ratio 1:1.5~2.5:1 respectively,
Mixed liquor is formed after being sufficiently mixed, by mixed liquor under 45~60 DEG C of water-baths 10~30min of mechanical stirring, be then slowly added into dilute
Nitric acid or dilute hydrochloric acid are to colloidal sol homogeneous transparent, and finally 1~3h of uniform stirring on magnetic stirring apparatus, obtains SiO2Colloidal sol；
S12: under ultrasound and mechanical agitation, to SiO2Superhard powder is added in colloidal sol, persistently stirs 1~3h, so
Natural subsidence afterwards is filtered and is washed, and in 80~120 DEG C of dry 1~3h, obtains the superhard micro mist of Surface Oxygen SiClx processing；
S2: SiO is prepared according to the method for S112Colloidal sol, under mechanical agitation, to the SiO of preparation2Slowly add in colloidal sol
Enter the mixed solution and aluminum nitrate solution and boric acid solution of sodium nitrate solution or potassium nitrate solution or sodium nitrate and potassium nitrate,
PH value is adjusted to 7.2~8.2, continues 0.5~2h of stirring, obtains nano ceramics colloidal sol；
When addition be sodium nitrate solution or potassium nitrate solution when, solution concentration be 0.5~2mol/L, sodium nitrate or nitric acid
Potassium is 1:1.5~3 with the molar ratio for preparing silester used in nano ceramics colloidal sol；
When addition be the mixed solution of sodium nitrate and potassium nitrate when, mixed solution concentration be 0.5~2mol/L, mix it is molten
The molar ratio of sodium nitrate and potassium nitrate is 1~2:1~2 in liquid, sodium nitrate and potassium nitrate and is prepared used in nano ceramics colloidal sol
The molar ratio of silester is 1:1.5~3；
Aluminum nitrate solution concentration is 0.5~2mol/L, and the molar ratio of aluminum nitrate and the silester is 1:2~3；Boric acid
Solution concentration is 0.5~2mol/L, and the molar ratio of boric acid and the silester is 1:1.5~2；
S3: the superhard micro mist that Surface Oxygen SiClx is handled is placed in three-dimensional material mixer, and poly- second is firstly added under stirring
Enolate solution, poly-vinyl alcohol solution additional amount be three-dimensional material mixer in Surface Oxygen SiClx processing superhard micro mist quality 1~
3%, it is then slowly added into the nano ceramics colloidal sol, controls the SiO in nano ceramics colloidal sol2With surpassing for Surface Oxygen SiClx processing
The mass ratio of hard micro mist is in 0.5~3:100, then 2~5h of mixing, after 5~10h of aging, dry 3 at 100~150 DEG C~
5h；
S4: by S3, treated that superhard micro mist carries out 2~5h of heat treatment at 450~550 DEG C, is then crushed, according to pre-
Provisioning request sieve classification obtains the superhard accumulation abrasive material of nanometer combination.
Preferably, in S11, the concentration of the dust technology or dilute hydrochloric acid is 0.5~2mol/L.
Preferably, in S12, the superhard powder is the superhard micro mist that fine granularity is 0.5~2 μm.
Preferably, in S2, pH value is adjusted to 7.2~8.2 by 10% ammonium hydroxide.
Preferably, in S3, the mass fraction of poly-vinyl alcohol solution used is 5%~8%.
The nanometer that the above method is prepared combines superhard micro mist to accumulate abrasive material, and self-sharpening is good, shape retention is good.
The nanometer that the above method is prepared combines superhard micro mist to accumulate abrasive material, is widely used, especially in accumulation abrasive material
Application in terms of abrasive band, fixed-abrasive wire saw, polycrystalline resin abrasive tools, lapping liquid or antiscuffing paste.
Technical solution of the present invention has the following beneficial effects:
(1) the present invention provides the preparation method that a kind of nanometer combines superhard micro mist accumulation abrasive material, a certain range is solved
The problem of interior fine granularity (especially fine granularity is 0.5~2 μm) superhard micro mist (diamond or cubic boron nitride) granularity reconstruction, phase
Outstanding advantages of having at low cost, quick, preparation simply and significant effect high temperature and pressure diauxic growth；
(2) in preparation process, by introducing inorganic nano vitrified bond between superhard micro powder granule, so that accumulation mill
Expect that self-sharpening is good, shape retention is good and is not easy to plug, accumulation abrasive grain is controllable, and obtained nanometer combines superhard micro mist
It accumulates that abrasive material reactivity is strong, and sintering temperature is low, far below 700 DEG C of diamond and 850 DEG C of cubic boron nitride, solves well
Accumulation abrasive material in the prior art of having determined needs high-temperature process, there are problems that superhard powder oxidation deterioration, has very strong
Applicability has broad application prospects in accurate grinding and polishing fields such as superhard abrasive band, consolidation scroll saw, abrasive pastes and polishing fluids.
(3) nanometer provided by the invention combines the preparation method of superhard micro mist accumulation abrasive material, can also be applied to it well
In his grained ultrahard micro mist and other type micron powers, there is good practicability.
Specific embodiment
In order to enable those skilled in the art to more fully understand, technical solution of the present invention is practiced, below with reference to specific
The invention will be further described for embodiment, but illustrated embodiment is not as a limitation of the invention.
When embodiment provides numberical range, it should be appreciated that except non-present invention is otherwise noted, two ends of each numberical range
Any one numerical value can be selected between point and two endpoints.Unless otherwise defined, the present invention used in all technologies and
Scientific term is identical as the normally understood meaning of those skilled in the art of the present technique.Except specific method, equipment used in embodiment,
Outside material, grasp and record of the invention according to those skilled in the art to the prior art can also be used and this
Any method, equipment and the material of the similar or equivalent prior art of method described in inventive embodiments, equipment, material come real
The existing present invention.
A kind of nanometer of preparation method for combining superhard micro mist to accumulate abrasive material of the present invention, specifically implements in accordance with the following steps:
S1: superhard powder surface nanometer cladding processing
S11: measuring silester, dehydrated alcohol and deionized water according to the ratio of volume ratio 1:1.5~2.5:1 respectively,
Mixed liquor is formed after being sufficiently mixed, by mixed liquor under 45~60 DEG C of water-baths 10~30min of mechanical stirring, be then slowly added into dilute
Nitric acid or dilute hydrochloric acid are to colloidal sol homogeneous transparent, and finally 1~3h of uniform stirring on magnetic stirring apparatus, obtains SiO2Colloidal sol；
S12: under ultrasound and mechanical agitation, to SiO2Superhard powder, superhard powder and SiO are added in colloidal sol2Colloidal sol
In SiO2Mass ratio is 0.8~2.5, persistently stirs 1~3h, then natural subsidence, is filtered and washed, at 80~120 DEG C
Dry 1~3h, obtains the superhard micro mist of Surface Oxygen SiClx processing；
S2: SiO is prepared according to the method for S112Colloidal sol, under mechanical agitation, to the SiO of preparation2Slowly add in colloidal sol
Enter the mixed solution and aluminum nitrate solution and boric acid solution of sodium nitrate solution or potassium nitrate solution or sodium nitrate and potassium nitrate,
PH value is adjusted to 7.2~8.2, continues 0.5~2h of stirring, obtains nano ceramics colloidal sol；
When addition be sodium nitrate solution or potassium nitrate solution when, solution concentration be 0.5~2mol/L, sodium nitrate or nitric acid
Potassium is 1:1.5~3 with the molar ratio for preparing silester used in nano ceramics colloidal sol；
When addition be the mixed solution of sodium nitrate and potassium nitrate when, mixed solution concentration be 0.5~2mol/L, mix it is molten
The molar ratio of sodium nitrate and potassium nitrate is 1~2:1~2 in liquid, sodium nitrate and potassium nitrate and is prepared used in nano ceramics colloidal sol
The molar ratio of silester is 1:1.5~3；
Aluminum nitrate solution concentration is 0.5~2mol/L, and the molar ratio of aluminum nitrate and the silester is 1:2~3；Boric acid
Solution concentration is 0.5~2mol/L, and the molar ratio of boric acid and the silester is 1:1.5~2；
S3: the superhard micro mist that Surface Oxygen SiClx is handled is placed in three-dimensional material mixer, and poly- second is firstly added under stirring
Enolate solution, poly-vinyl alcohol solution additional amount be three-dimensional material mixer in Surface Oxygen SiClx processing superhard micro mist quality 1~
3%, it is then slowly added into the nano ceramics colloidal sol, controls the SiO in nano ceramics colloidal sol2With surpassing for Surface Oxygen SiClx processing
The mass ratio of hard micro mist is in 0.5~3:100, then 2~5h of mixing, after 5~10h of aging, dry 3 at 100~150 DEG C~
5h；
S4: by S3, treated that superhard micro mist carries out 2~5h of heat treatment at 450~550 DEG C, is then crushed, according to pre-
Provisioning request sieve classification obtains the superhard accumulation abrasive material of nanometer combination.
Technical solution of the present invention is further illustrated by combined with specific embodiments below.
Embodiment 1
The preparation method of a kind of nanometer of bonded diamond micro mist accumulation abrasive material of the present embodiment, specific preparation process are as follows:
S1: diadust nano surface cladding processing
S11: measuring silester, dehydrated alcohol and deionized water according to the ratio of volume ratio 1:1.5:1 respectively, sufficiently mixed
Mixed liquor is formed after conjunction, by mixed liquor under 45 DEG C of water-baths mechanical stirring 30min, be then slowly added into the dust technology of 2mol/L extremely
Colloidal sol homogeneous transparent, finally the uniform stirring 3h on magnetic stirring apparatus, obtains SiO2Colloidal sol；
S12: under ultrasound and mechanical agitation, to SiO2Diadust, diadust and SiO are added in colloidal sol2
SiO in colloidal sol2Mass ratio is 2, which is 0.5~1 μm, persistently stirs 1h, then natural subsidence, is passed through
Filter and washing obtain the diadust of Surface Oxygen SiClx cladding processing in 120 DEG C of dry 1h；
S2: SiO is prepared according to the method described above2Colloidal sol, under mechanical agitation, to the SiO of preparation2Delay respectively in colloidal sol
Slow sodium nitrate solution, the aluminum nitrate solution of 1mol/L and the boric acid solution of 1mol/L that 1mol/L is added, using 10% ammonium hydroxide
PH value is adjusted to 7.2, continues to stir 1h, obtains nano ceramics colloidal sol；
Sodium nitrate is 1:2, aluminum nitrate and preparation nanometer with the molar ratio for preparing silester used in nano ceramics colloidal sol
The molar ratio of silester used in ceramic sol be 1:2, boric acid with prepare rubbing for silester used in nano ceramics colloidal sol
You are than being 1:2；
S3: the diadust that Surface Oxygen SiClx is handled is placed in three-dimensional material mixer, is firstly added energy under stirring
The poly-vinyl alcohol solution (7wt%) for enough enhancing adhesion property, is then slowly added into the nano ceramics colloidal sol, poly-vinyl alcohol solution
Additional amount is 1% of the diadust quality of Surface Oxygen SiClx processing in three-dimensional material mixer；The additional amount of nano ceramics colloidal sol
Pass through the SiO in Nano sol2It is controlled with the mass ratio of diadust, controls the SiO in nano ceramics colloidal sol2With Buddha's warrior attendant
The mass ratio of stone micro mist is in 2:100, then mixing 2h, after aging 5h, the dry 3h at 100 DEG C；
S4: by S3, treated that diadust carries out heat treatment 5h at 450 DEG C, is then crushed, sieve classification, obtains
The diamond that the nanometer of different model combines accumulates abrasive material.
Embodiment 2
A kind of nanometer of the present embodiment preparation method for combining polycrystalline diamond micro mist to accumulate abrasive material, specific preparation process are as follows:
S1: polycrystalline diamond micro mist nano surface cladding processing
S11: measuring silester, dehydrated alcohol and deionized water according to the ratio of volume ratio 1:2.5:1 respectively, sufficiently mixed
Mixed liquor is formed after conjunction, by mixed liquor under 60 DEG C of water-baths mechanical stirring 10min, be then slowly added into 0.5mol/L dilute hydrochloric acid extremely
Colloidal sol homogeneous transparent, finally the uniform stirring 1h on magnetic stirring apparatus, obtains SiO2Colloidal sol；
S12: under ultrasound and mechanical agitation, to SiO2Polycrystalline diamond powder, polycrystalline diamond are added in colloidal sol
Micro mist and SiO2SiO in colloidal sol2Mass ratio is 2.5, which is 0.5~2 μm, persistently stirs 3h, then certainly
So sedimentation, is filtered and is washed, and in 80 DEG C of dry 3h, obtains the polycrystalline diamond micro mist of Surface Oxygen SiClx processing；
S2: SiO is prepared according to the method described above2Colloidal sol, under mechanical agitation, to the SiO of preparation2Slowly add in colloidal sol
Enter the sodium nitrate and potassium nitrate mixed solution, the aluminum nitrate solution of 1mol/L and the boric acid solution of 1mol/L of 1mol/L, it is above-mentioned
In mixed solution, the molar ratio of sodium nitrate and potassium nitrate is 1:1, then adjusts pH value to 8.2 using 10% ammonium hydroxide, continues to stir
0.5h obtains nano ceramics colloidal sol；
Sodium nitrate and potassium nitrate mixed solution and the molar ratio for preparing silester used in nano ceramics colloidal sol are 1:
1.5, the molar ratio of aluminum nitrate and silester is 1:2, and the molar ratio of boric acid and silester is 1:2；
S3: the polycrystalline diamond micro mist that Surface Oxygen SiClx is handled is placed in three-dimensional material mixer, adds first under stirring
Enter poly-vinyl alcohol solution (7wt%), be then slowly added into the nano ceramics colloidal sol, poly-vinyl alcohol solution additional amount is three-dimensional mixed
The 3% of the polycrystalline diamond quality that Surface Oxygen SiClx is handled in material machine；Control the SiO in colloidal sol2With polycrystalline diamond micro mist
Mass ratio is in 3:100, then mixing 5h, after aging 10h, the dry 5h at 150 DEG C；
S4: by S3, treated that polycrystalline diamond micro mist carries out heat treatment 2h at 450 DEG C, is then crushed, sieve classification,
Obtain the polycrystalline diamond accumulation abrasive material that the nanometer of different model combines.
Embodiment 3
A kind of nanometer of the present embodiment preparation method for combining CBN micro mist to accumulate abrasive material, specific preparation process are as follows:
The processing of S1:CBN powder surface nanometer cladding
S11: silester, dehydrated alcohol and deionized water are measured respectively according to the ratio of volume ratio 1:2:1, is sufficiently mixed
After form mixed liquor, by mixed liquor under 55 DEG C of water-baths mechanical stirring 25min, be then slowly added into 1mol/L dilute hydrochloric acid to colloidal sol
Homogeneous transparent, finally the uniform stirring 2h on magnetic stirring apparatus, obtains SiO2Colloidal sol；
S12: under ultrasound and mechanical agitation, to SiO2CBN powder, CBN powder and SiO are added in colloidal sol2In colloidal sol
SiO2Mass ratio is 2.5, which is that fine granularity is superhard micro mist between 0.5~2 μm, persistently stirs 2h, then from
So sedimentation, is filtered and is washed, and in 105 DEG C of dry 2.5h, obtains the CBN powder of Surface Oxygen SiClx processing；
S2: SiO is prepared according to the method described above2Colloidal sol, under mechanical agitation, to the SiO of preparation2Slowly add in colloidal sol
Enter the potassium nitrate mixed solution, the aluminum nitrate solution of 1mol/L and the boric acid solution of 1mol/L of 1mol/L, then uses 10%
Ammonium hydroxide adjusts pH value to 8.2, continues to stir 0.5h, obtains nano ceramics colloidal sol；
Potassium nitrate solution is 1:2.5, aluminum nitrate and silicon with the molar ratio for preparing silester used in nano ceramics colloidal sol
The molar ratio of acetoacetic ester is 1:2.5, and the molar ratio of boric acid and silester is 1:2；
S3: the CBN micro mist that Surface Oxygen SiClx is handled is placed in three-dimensional material mixer, is firstly added polyethylene under stirring
Alcoholic solution (5wt%), is then slowly added into the nano ceramics colloidal sol, and poly-vinyl alcohol solution additional amount is table in three-dimensional material mixer
The 2.2% of the CBN micro mist quality of face silica processing；Control the SiO in colloidal sol2With the mass ratio of CBN micro mist in 2.4:100,
Then after mixing 3.5h, aging 7h, the dry 4h at 120 DEG C；
S4: by S3, treated that CBN micro mist carries out heat treatment 3h at 517 DEG C, is then crushed, sieve classification, obtains not
The CBN combined with the nanometer of model accumulates abrasive material.
Nanometer made from 1~embodiment of embodiment 3 combines superhard accumulation abrasive material process stabilizing, reliable in quality, function admirable.
Such as we have chosen nano ceramics bonded diamond, the polycrystalline that granularity prepared in Examples 1 to 3 is 12~22 μm respectively
Diamond and CBN accumulate abrasive material, superhard accumulation abrasive material fine grinding abrasive band are prepared for respectively using powder method, to Talide
It is ground, processing carbide surface roughness respectively reaches 0.29 μm, 0.18 μm and 0.23 μm, and highly uniform；And it is
The surface roughness big rise and fall of the selected 600 mesh SiC accumulation abrasive sand band processing of control, minimal roughness is only 0.45
μm, and processing efficiency combines superhard accumulation abrasive sand band far below prepared nano ceramics.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, and protection scope is unlimited
In this.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in protection of the invention
Within the scope of, protection scope of the present invention is subject to claims.
Claims (7)
1. a kind of nanometer of preparation method for combining superhard micro mist to accumulate abrasive material, which is characterized in that specifically implement in accordance with the following steps:
S1: superhard powder surface nanometer cladding processing
S11: silester, dehydrated alcohol and deionized water are measured respectively according to the ratio of volume ratio 1:1.5~2.5:1, sufficiently
Mixed liquor is formed after mixing, by mixed liquor under 45~60 DEG C of water-baths 10~30min of mechanical stirring, be then slowly added into dust technology
Or dilute hydrochloric acid, to colloidal sol homogeneous transparent, finally 1~3h of uniform stirring on magnetic stirring apparatus, obtains SiO2Colloidal sol；
S12: under ultrasound and mechanical agitation, to SiO2Superhard powder, superhard powder and SiO are added in colloidal sol2In colloidal sol
SiO2Mass ratio is 0.8~2.5, persistently stirs 1~3h, and then natural subsidence, is filtered and washed, at 80~120 DEG C dry 1
~3h obtains the superhard micro mist of Surface Oxygen SiClx processing；
S2: SiO is prepared according to the method for S112Colloidal sol, under mechanical agitation, to the SiO of preparation2Nitre is slowly added in colloidal sol
The mixed solution and aluminum nitrate solution and boric acid solution of acid sodium solution or potassium nitrate solution or sodium nitrate and potassium nitrate are adjusted
PH value continues 0.5~2h of stirring, obtains nano ceramics colloidal sol to 7.2~8.2；
When addition be sodium nitrate solution or potassium nitrate solution when, solution concentration is 0.5~2mol/L, sodium nitrate or potassium nitrate with
The molar ratio for preparing silester used in nano ceramics colloidal sol is 1:1.5~3；
When addition be the mixed solution of sodium nitrate and potassium nitrate when, mixed solution concentration is 0.5~2mol/L, in mixed solution
The molar ratio of sodium nitrate and potassium nitrate is 1~2:1~2, sodium nitrate and potassium nitrate and prepares silicic acid used in nano ceramics colloidal sol
The molar ratio of ethyl ester is 1:1.5~3；
Aluminum nitrate solution concentration is 0.5~2mol/L, and the molar ratio of aluminum nitrate and the silester is 1:2~3；Boric acid solution
Concentration is 0.5~2mol/L, and the molar ratio of boric acid and the silester is 1:1.5~2；
S3: the superhard micro mist that Surface Oxygen SiClx is handled is placed in three-dimensional material mixer, is firstly added polyvinyl alcohol under stirring
Solution, poly-vinyl alcohol solution additional amount are 1~3% of the superhard micro mist quality of Surface Oxygen SiClx processing in three-dimensional material mixer, so
After be slowly added to the nano ceramics colloidal sol, control the SiO in nano ceramics colloidal sol2With the superhard micro mist of Surface Oxygen SiClx processing
Mass ratio in 0.5~3:100, after then 2~5h of mixing, 5~10h of aging, dry 3~5h at 100~150 DEG C；
S4: by S3, treated that superhard micro mist carries out 2~5h of heat treatment at 450~550 DEG C, is then crushed, is wanted according to predetermined
Sieve classification is sought, the superhard accumulation abrasive material of nanometer combination is obtained.
2. the preparation method that nanometer according to claim 1 combines superhard micro mist accumulation abrasive material, which is characterized in that in S11,
The concentration of the dust technology or dilute hydrochloric acid is 0.5~2mol/L.
3. the preparation method that nanometer according to claim 1 combines superhard micro mist accumulation abrasive material, which is characterized in that in S12,
The superhard powder is the superhard micro mist that fine granularity is 0.5~2 μm.
4. the preparation method that nanometer according to claim 1 combines superhard micro mist accumulation abrasive material, which is characterized in that in S2,
PH value is adjusted to 7.2~8.2 by 10% ammonium hydroxide.
5. the preparation method that nanometer according to claim 1 combines superhard micro mist accumulation abrasive material, which is characterized in that in S3,
The mass fraction of poly-vinyl alcohol solution used is 5%~8%.
6. a kind of nanometer as obtained by Claims 1 to 5 either method combines superhard micro mist to accumulate abrasive material.
7. nanometer according to claim 6 combine superhard micro mist accumulate abrasive material, which is characterized in that accumulation abrasive sand band,
Application in terms of fixed-abrasive wire saw, polycrystalline resin abrasive tools, lapping liquid or antiscuffing paste.
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