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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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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| Publication number | Priority date | Publication date | Assignee | Title |
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