CN108558390A - A kind of cutter enhancing nano-composite coating and preparation method thereof - Google Patents
A kind of cutter enhancing nano-composite coating and preparation method thereof Download PDFInfo
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- CN108558390A CN108558390A CN201810488814.2A CN201810488814A CN108558390A CN 108558390 A CN108558390 A CN 108558390A CN 201810488814 A CN201810488814 A CN 201810488814A CN 108558390 A CN108558390 A CN 108558390A
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- 238000000576 coating method Methods 0.000 title claims abstract description 50
- 239000011248 coating agent Substances 0.000 title claims abstract description 44
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 42
- 239000002114 nanocomposite Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 48
- 229910052454 barium strontium titanate Inorganic materials 0.000 claims abstract description 25
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 23
- 239000004411 aluminium Substances 0.000 claims abstract description 23
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 23
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 23
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000010439 graphite Substances 0.000 claims abstract description 21
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 229910000164 yttrium(III) phosphate Inorganic materials 0.000 claims abstract description 16
- UXBZSSBXGPYSIL-UHFFFAOYSA-K yttrium(iii) phosphate Chemical compound [Y+3].[O-]P([O-])([O-])=O UXBZSSBXGPYSIL-UHFFFAOYSA-K 0.000 claims abstract description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000000748 compression moulding Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 238000013329 compounding Methods 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 229910052727 yttrium Inorganic materials 0.000 description 5
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910010037 TiAlN Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/47—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on strontium titanates
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- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
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Abstract
The invention discloses a kind of cutter enhancing nano-composite coatings and preparation method thereof.The cutter enhancing nano-composite coating includes the raw material of following parts by weight：11 28 parts of 18 27 part, nanometer lanthanum silicate of barium-strontium titanate powder, 12 25 parts of yttrium phosphate, 5 15 parts of prodan, 6 15 parts of aluminium powder, 27 parts of scale expanded graphite.The enhancing nano-composite coating of the present invention is prepared by barium-strontium titanate powder, nanometer lanthanum silicate, yttrium phosphate, prodan, aluminium powder and scale expanded graphite, and synergistic effect is played by the compounding of raw material；The enhancing nano-composite coating of the present invention has many advantages, such as that high temperature friction coefficient is low, wear-resisting property is good, service life is high, and promotional value is good.
Description
Technical field
The present invention relates to a kind of coating, specifically a kind of cutter enhancing nano-composite coating and preparation method thereof.
Background technology
With the extensive use of high-speed cutting and Dry-Cutting Technology, the application temperature of cutting tool is higher and higher, in knife
Has the protective coating of matrix surface coating high-wearing feature and high-temperature oxidation resistance as the development trend of current cutting tool.
TiAlN coatings and CrAlN coatings are answered due to excellent performances such as its high rigidity, high-melting-point and good in oxidation resistance on cutting tool
With the most extensively.But TiAlN coatings are changed into stable phase when higher than 1000 DEG C and make mechanical properties decrease, anti-oxidant temperature
Degree is even more to be less than 850 DEG C；Although CrAlN coating oxidation resistance temperatures are higher than 1000 DEG C, it can be thermally decomposed at 900 DEG C or more
And make mechanical properties decrease.With the extensive use of high-speed cutting and Dry-Cutting Technology, especially some hardly possible processing materials are being cut
When material, the temperature of cutting edge roundness is likely to be breached 1000 DEG C or more, has been more than the service temperature of TiAlN and CrAlN coatings.Therefore,
The present invention provides a kind of cutter enhancing nano-composite coating and preparation method thereof.
Invention content
It is above-mentioned to solve the purpose of the present invention is to provide a kind of cutter enhancing nano-composite coating and preparation method thereof
The problem of being proposed in background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of cutter enhancing nano-composite coating, the cutter enhancing nano-composite coating includes following parts by weight
Raw material：18-27 parts of barium-strontium titanate powder, 11-28 parts of nanometer lanthanum silicate, 12-25 parts of yttrium phosphate, 5-15 parts of prodan, aluminium
6-15 parts of powder, 2-7 parts of scale expanded graphite.
As a further solution of the present invention：The cutter enhancing nano-composite coating includes the original of following parts by weight
Material：21-24 parts of barium-strontium titanate powder, 15-22 parts of nanometer lanthanum silicate, 17-23 parts of yttrium phosphate, 7-11 parts of prodan, aluminium powder 9-
12 parts, 3-6 parts of scale expanded graphite.
As a further solution of the present invention：The cutter enhancing nano-composite coating includes the original of following parts by weight
Material：23 part, nanometer lanthanum silicate 21 of barium-strontium titanate powder, 19 parts of yttrium phosphate, 9 parts of prodan, 10 parts of aluminium powder, scale expanded graphite
5 parts.
A kind of cutter preparation method of enhancing nano-composite coating, includes the following steps：
(1) nanometer lanthanum silicate, yttrium phosphate and scale expanded graphite are added in ball mill, and ballstone and water is added, ratio
For material：Ball：Water=1：4：1.5, until stopping grinding behind slurry fineness D50≤3 micron, D90≤5 micron；
(2) it by barium-strontium titanate powder, aluminium powder and prodan after drying, is uniformly mixed, and be ground up, sieved 400-800
Mesh；
(3) step (2) gains are mixed with step (1) gains, is placed at 75-98 DEG C and stirs 20-30min；
(4) upper step gains are placed at 80-100 DEG C dry 1-2h；Take out postcooling；It is ground up, sieved 400-800 mesh；
(5) upper step gains are placed in compression moulding in mold, are placed at 500-600 DEG C and are sintered 1-2h, then heats up
Be sintered 2-3h to 1600-1800 DEG C, be subsequently placed at 3700-3800 DEG C and be sintered 20-50min, be cooled to room temperature to get.
As a further solution of the present invention：Barium-strontium titanate powder, aluminium powder and prodan are passed through drying by step (2)
Afterwards, it is uniformly mixed, and is ground up, sieved 700 mesh.
As a further solution of the present invention：Step (3) mixes step (2) gains with step (1) gains, is placed in
25min is stirred at 88 DEG C.
As a further solution of the present invention：Upper step gains are placed at 90 DEG C dry 1.2h by step (4)；It is cold after taking-up
But；It is ground up, sieved 600 mesh.
As a further solution of the present invention：Upper step gains are placed in compression moulding in mold by step (5), are placed in
It is sintered 1.3h at 550 DEG C, then heats at 1700 DEG C and is sintered 2.6h, is subsequently placed at 3760 DEG C and is sintered 35min, be cooled to room
Temperature to get.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention enhancing nano-composite coating by barium-strontium titanate powder, nanometer lanthanum silicate, yttrium phosphate, prodan,
Aluminium powder and scale expanded graphite are prepared, and synergistic effect is played by the compounding of raw material；The nano combined painting of enhancing of the present invention
Layer has many advantages, such as that high temperature friction coefficient is low, wear-resisting property is good, service life is high, and promotional value is good.
Specific implementation mode
The technical solution of this patent is described in more detail With reference to embodiment.
Embodiment 1
A kind of cutter enhancing nano-composite coating, the cutter enhancing nano-composite coating includes following parts by weight
Raw material：11 parts of 18 part, nanometer lanthanum silicate of barium-strontium titanate powder, 12 parts of yttrium phosphate, 5 parts of prodan, 6 parts of aluminium powder, scale are swollen
2 parts of swollen graphite.
A kind of cutter preparation method of enhancing nano-composite coating, includes the following steps：(1) by nanometer lanthanum silicate, phosphorus
Sour yttrium and scale expanded graphite are added in ball mill, and ballstone and water is added, and ratio is material：Ball：Water=1：4：1.5, until slurry
Stop grinding behind fineness D50≤3 micron, D90≤5 micron；(2) it by barium-strontium titanate powder, aluminium powder and prodan after drying, mixes
It closes uniformly, and is ground up, sieved 400 mesh；(3) step (2) gains are mixed with step (1) gains, is placed at 75 DEG C and stirs
20min；(4) upper step gains are placed at 80 DEG C dry 1h；Take out postcooling；It is ground up, sieved 400 mesh；It (5) will be obtained by upper step
Object is placed in compression moulding in mold, is placed at 500 DEG C and is sintered 1h, then heats at 1600 DEG C and is sintered 2h, is subsequently placed in
Be sintered 20min at 3700 DEG C, be cooled to room temperature to get.
Embodiment 2
A kind of cutter enhancing nano-composite coating, the cutter enhancing nano-composite coating includes following parts by weight
Raw material：28 parts of 27 part, nanometer lanthanum silicate of barium-strontium titanate powder, 25 parts of yttrium phosphate, 15 parts of prodan, 15 parts of aluminium powder, scale
7 parts of expanded graphite.
A kind of cutter preparation method of enhancing nano-composite coating, includes the following steps：(1) by nanometer lanthanum silicate, phosphorus
Sour yttrium and scale expanded graphite are added in ball mill, and ballstone and water is added, and ratio is material：Ball：Water=1：4：1.5, until slurry
Stop grinding behind fineness D50≤3 micron, D90≤5 micron；(2) it by barium-strontium titanate powder, aluminium powder and prodan after drying, mixes
It closes uniformly, and is ground up, sieved 800 mesh；(3) step (2) gains are mixed with step (1) gains, is placed at 98 DEG C and stirs
30min；(4) upper step gains are placed at 100 DEG C dry 2h；Take out postcooling；It is ground up, sieved 800 mesh；It (5) will be obtained by upper step
Object is placed in compression moulding in mold, is placed at 600 DEG C and is sintered 2h, then heats at 1800 DEG C and is sintered 3h, is subsequently placed in
Be sintered 50min at 3800 DEG C, be cooled to room temperature to get.
Embodiment 3
A kind of cutter enhancing nano-composite coating, the cutter enhancing nano-composite coating includes following parts by weight
Raw material：23 part, nanometer lanthanum silicate 21 of barium-strontium titanate powder, 19 parts of yttrium phosphate, 9 parts of prodan, 10 parts of aluminium powder, scale expansion
5 parts of graphite.
A kind of cutter preparation method of enhancing nano-composite coating, includes the following steps：(1) by nanometer lanthanum silicate, phosphorus
Sour yttrium and scale expanded graphite are added in ball mill, and ballstone and water is added, and ratio is material：Ball：Water=1：4：1.5, until slurry
Stop grinding behind fineness D50≤3 micron, D90≤5 micron；(2) it by barium-strontium titanate powder, aluminium powder and prodan after drying, mixes
It closes uniformly, and is ground up, sieved 700 mesh.(3) step (2) gains are mixed with step (1) gains, is placed at 88 DEG C and stirs
25min.(4) upper step gains are placed at 90 DEG C dry 1.2h；Take out postcooling；It is ground up, sieved 600 mesh.(5) by upper step institute
It obtains object and is placed in compression moulding in mold, be placed at 550 DEG C and be sintered 1.3h, then heat at 1700 DEG C and be sintered 2.6h, then
Be placed at 3760 DEG C and be sintered 35min, be cooled to room temperature to get.
Embodiment 4
A kind of cutter enhancing nano-composite coating, the cutter enhancing nano-composite coating includes following parts by weight
Raw material：15 parts of 21 part, nanometer lanthanum silicate of barium-strontium titanate powder, 17 parts of yttrium phosphate, 7 parts of prodan, 9 parts of aluminium powder, scale are swollen
3 parts of swollen graphite.
A kind of cutter preparation method of enhancing nano-composite coating, includes the following steps：(1) by nanometer lanthanum silicate, phosphorus
Sour yttrium and scale expanded graphite are added in ball mill, and ballstone and water is added, and ratio is material：Ball：Water=1：4：1.5, until slurry
Stop grinding behind fineness D50≤3 micron, D90≤5 micron；(2) it by barium-strontium titanate powder, aluminium powder and prodan after drying, mixes
It closes uniformly, and is ground up, sieved 500 mesh；(3) step (2) gains are mixed with step (1) gains, is placed at 78 DEG C and stirs
22min；(4) upper step gains are placed at 85 DEG C dry 1.4h；Take out postcooling；It is ground up, sieved 500 mesh；(5) by upper step institute
It obtains object and is placed in compression moulding in mold, be placed at 520 DEG C and be sintered 1.4h, then heat at 1650 DEG C and be sintered 2.3h, then
Be placed at 3770 DEG C and be sintered 30min, be cooled to room temperature to get.
Embodiment 5
A kind of cutter enhancing nano-composite coating, the cutter enhancing nano-composite coating includes following parts by weight
Raw material：22 parts of 24 part, nanometer lanthanum silicate of barium-strontium titanate powder, 23 parts of yttrium phosphate, 11 parts of prodan, 12 parts of aluminium powder, scale
6 parts of expanded graphite.
A kind of cutter preparation method of enhancing nano-composite coating, includes the following steps：(1) by nanometer lanthanum silicate, phosphorus
Sour yttrium and scale expanded graphite are added in ball mill, and ballstone and water is added, and ratio is material：Ball：Water=1：4：1.5, until slurry
Stop grinding behind fineness D50≤3 micron, D90≤5 micron；(2) it by barium-strontium titanate powder, aluminium powder and prodan after drying, mixes
It closes uniformly, and is ground up, sieved 700 mesh；(3) step (2) gains are mixed with step (1) gains, is placed at 90 DEG C and stirs
28min；(4) upper step gains are placed at 95 DEG C dry 1.7h；Take out postcooling；It is ground up, sieved 750 mesh；(5) by upper step institute
It obtains object and is placed in compression moulding in mold, be placed at 570 DEG C and be sintered 1.6h, then heat at 1750 DEG C and be sintered 2.8h, then
Be placed at 3780 DEG C and be sintered 45min, be cooled to room temperature to get.
Comparative example 1
In addition in raw material without barium-strontium titanate powder, preparation process is same as Example 3.
Comparative example 2
In addition to nanometer lanthanum silicate in raw material, preparation process is same as Example 3.
Comparative example 3
In addition in raw material without barium-strontium titanate powder and nanometer lanthanum silicate, preparation process is same as Example 3.
Comparative example 4
Raw material is same as Example 3, and (5) step is different in preparation process, uses：It is placed directly at 3780 DEG C and is sintered
45min, be cooled to room temperature to get.
Experimental example
Using conventional method by coating material deposition of the present invention 3 μm of thickness on tool matrix.
Cutter to being coated with coating material carries out cutting ability test.
Cutting test carries out in the CNC machine of ETC3650h, machine tool chief axis power 15kW, maximum speed 3500r/min.
Workpiece material selects high strength steel SKD11 (HRC=62).Clamping knife bar model MTJNL-2525M16, setting angle：Anterior angle
R0=-6 °, a0=6 ° of relief angle, Kr=90 ° of tool cutting edge angle.Cutting experiment selects cutter tool flank wear VB=0.3mm as knife
Has failure criteria, selection cutting data is：VC=250m/min (cutting speed), f=0.1mm/r (amount of feeding), ap=0.5mm
(back engagement of the cutting edge), cutting experiment is repeated 3 times.Experimental result is shown in Table 1.
Table 1
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, one skilled in the relevant art within the scope of knowledge, can also be under the premise of not departing from this patent objective
Various changes can be made.
Claims (8)
1. a kind of cutter enhancing nano-composite coating, which is characterized in that the cutter enhancing nano-composite coating include with
The raw material of lower parts by weight：18-27 parts of barium-strontium titanate powder, 11-28 parts of nanometer lanthanum silicate, 12-25 parts of yttrium phosphate, prodan
5-15 parts, 6-15 parts of aluminium powder, 2-7 parts of scale expanded graphite.
2. cutter according to claim 1 enhancing nano-composite coating, which is characterized in that cutter enhancing nanometer
Composite coating includes the raw material of following parts by weight：21-24 parts of barium-strontium titanate powder, 15-22 parts of nanometer lanthanum silicate, yttrium phosphate
17-23 parts, 7-11 parts of prodan, 9-12 parts of aluminium powder, 3-6 parts of scale expanded graphite.
3. cutter according to claim 1 enhancing nano-composite coating, which is characterized in that cutter enhancing nanometer
Composite coating includes the raw material of following parts by weight：23 part, nanometer lanthanum silicate 21 of barium-strontium titanate powder, 19 parts of yttrium phosphate, fluorine silicon
9 parts of sour sodium, 10 parts of aluminium powder, 5 parts of scale expanded graphite.
4. a kind of preparation method according to any cutter enhancing nano-composite coatings of claim 1-4, feature exists
In including the following steps：
（1）Nanometer lanthanum silicate, yttrium phosphate and scale expanded graphite are added in ball mill, and ballstone and water is added, ratio is material：
Ball：Water=1：4：1.5, until stopping grinding behind slurry fineness D50≤3 micron, D90≤5 micron；
（2）By barium-strontium titanate powder, aluminium powder and prodan after drying, it is uniformly mixed, and be ground up, sieved 400-800 mesh；
（3）By step（2）Gains and step（1）Gains mix, and are placed at 75-98 DEG C and stir 20-30min；
（4）Upper step gains are placed at 80-100 DEG C dry 1-2h；Take out postcooling；It is ground up, sieved 400-800 mesh；
（5）Upper step gains are placed in compression moulding in mold, is placed at 500-600 DEG C and is sintered 1-2h, then heat to
Be sintered 2-3h at 1600-1800 DEG C, be subsequently placed at 3700-3800 DEG C and be sintered 20-50min, be cooled to room temperature to get.
5. the cutter according to claim 4 preparation method of enhancing nano-composite coating, which is characterized in that step（2）
By barium-strontium titanate powder, aluminium powder and prodan after drying, it is uniformly mixed, and be ground up, sieved 700 mesh.
6. the cutter according to claim 4 preparation method of enhancing nano-composite coating, which is characterized in that step（3）
By step（2）Gains and step（1）Gains mix, and are placed at 88 DEG C and stir 25min.
7. the cutter according to claim 4 preparation method of enhancing nano-composite coating, which is characterized in that step（4）
Upper step gains are placed at 90 DEG C dry 1.2h；Take out postcooling；It is ground up, sieved 600 mesh.
8. the cutter according to claim 4 preparation method of enhancing nano-composite coating, which is characterized in that step（5）
Upper step gains are placed in compression moulding in mold, is placed at 550 DEG C and is sintered 1.3h, then heat at 1700 DEG C and be sintered
2.6h is subsequently placed at 3760 DEG C and is sintered 35min, be cooled to room temperature to get.
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Application publication date: 20180921 |