CN118222986A - Method for plating high-density coating on surface of high-temperature material processing cutter - Google Patents
Method for plating high-density coating on surface of high-temperature material processing cutter Download PDFInfo
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- CN118222986A CN118222986A CN202410328306.3A CN202410328306A CN118222986A CN 118222986 A CN118222986 A CN 118222986A CN 202410328306 A CN202410328306 A CN 202410328306A CN 118222986 A CN118222986 A CN 118222986A
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- 238000000576 coating method Methods 0.000 title claims abstract description 115
- 239000011248 coating agent Substances 0.000 title claims abstract description 111
- 238000012545 processing Methods 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007747 plating Methods 0.000 title claims abstract description 23
- 238000007750 plasma spraying Methods 0.000 claims abstract description 42
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 238000005498 polishing Methods 0.000 claims abstract description 11
- 238000004663 powder metallurgy Methods 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 239000005002 finish coating Substances 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 29
- 239000011812 mixed powder Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 230000003746 surface roughness Effects 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 5
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 19
- 238000003754 machining Methods 0.000 description 12
- 238000011010 flushing procedure Methods 0.000 description 6
- 239000013077 target material Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
- 229910011208 Ti—N Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 229910018509 Al—N Inorganic materials 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- Coating By Spraying Or Casting (AREA)
Abstract
The application discloses a method for plating a high-density coating on the surface of a high-temperature material processing cutter. The application provides a method for plating a high-density coating on the surface of a high-temperature material processing cutter, which comprises the following steps: s1, polishing and cleaning the surface of a cutter to be coated with a film; s2, mixing titanium powder and aluminum powder according to a mass ratio of 4-9:1, and then preparing a target electrode in a powder metallurgy mode; s3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, so as to finish coating of the high-density coating; the plasma spraying adopts a high-current close-range spraying mode. The application can plate a compact compound strengthening coating on the surface of the processing cutter, so that the cutter still has better surface hardness under the high temperature condition, and the service life of the cutter when processing high temperature materials is effectively prolonged.
Description
Technical Field
The application relates to the technical field of metal surface coating, in particular to a method for coating a high-density coating on the surface of a high-temperature material processing cutter.
Background
Machining is a machining mode in which machining equipment is used to machine the external dimensions and structural properties of a workpiece. With the rapid development of modern machining technology, machining equipment is more and more advanced, and the current machining equipment mainly comprises various numerical control machine tools. The cutter is used for cutting a workpiece in machining equipment and mainly comprises a turning tool, a milling cutter, a boring cutter and the like; the tool of the machining apparatus generally has a high surface hardness and a high overall strength. Tools for machining equipment are consumables, typically have a relatively short life, particularly tools for cutting metal materials, are relatively prone to wear, and often have a life ranging from several hours to tens of hours.
When a machining tool is manufactured, in order to prolong the service life and ensure the machining precision, the surface of the tool is usually subjected to film plating strengthening treatment, and the surface hardness of the tool is improved by plating a high-hardness coating on the surface. The common tool coating process mainly comprises two types of physical vapor deposition and chemical vapor deposition. Physical vapor deposition is commonly used for coating films on hard alloy cutters, the method needs to be carried out under high temperature, the process temperature is usually more than 500 ℃, the energy consumption is high, and the metallographic structure of the cutter is easy to change during coating. The chemical vapor deposition method is environment-friendly, is suitable for coating ternary or multi-element metastable films, has relatively low deposition temperature, is usually within 500 ℃ and does not damage the metallographic structure of the cutter. But the chemical vapor deposition method is used for coating, the film base binding force of the coating is lower than that of the physical vapor deposition method, and the coating of the coating is easy to fall off.
At present, titanium is generally used as a coating target material for coating a cutter, and a Ti-N cubic crystal coating is formed on the surface of the cutter after coating. The coating has larger surface hardness, can effectively prolong the service life of the cutter and effectively ensure the machining precision. However, the coating formed by the coating mode has relatively poor high-temperature tolerance and cannot meet the processing requirement of high-temperature materials.
Disclosure of Invention
In order to solve at least one technical problem, a surface coating process capable of coating a compact composite reinforced coating on the surface of a processing cutter is developed, so that the cutter still has better surface hardness under the high-temperature condition, and the service life of the cutter during processing of high-temperature materials is effectively prolonged.
The application provides a method for plating a high-density coating on the surface of a high-temperature material processing cutter, which comprises the following steps: s1, polishing and cleaning the surface of a cutter to be coated with a film;
S2, mixing titanium powder and aluminum powder according to a mass ratio of 4-9:1 to obtain mixed powder, and then preparing a target electrode by using a powder metallurgy mode;
S3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, so as to finish coating of the high-density coating;
the plasma spraying parameters are as follows: voltage: 100-120V; current flow: 650-850A; spraying distance: 30-50 mm; the working gas is nitrogen, and the flow rate is as follows: 60-100L/h; the thickness of the coating is not more than 4 mu m.
By adopting the technical scheme, the titanium and aluminum with specific proportions are used as coating target materials, nitrogen is used as working gas, and high-energy density pulse plasma spraying equipment is used for coating the surface of the cutter to form a composite coating of Ti-N cubic crystals and Al-N cubic crystals, so that the surface hardness of the cutter is effectively enhanced, and the cutter still has higher surface hardness under the high-temperature condition; the application adopts specific plasma spraying parameters, the obtained film coating is compact, the film base binding force is larger, the coating is not easy to fall off, and the service life of the cutter in processing high-temperature materials is effectively prolonged.
Optionally, in the step S1, the surface roughness of the to-be-coated film of the tool needs to be polished to be within 0.5 μm.
Optionally, in step S1, the cleaning is performed by using absolute ethanol and ultrasonic cleaning.
Further optionally, in the step S1, the ultrasonic cleaning time is controlled to be 15-30 min.
Optionally, in the step S2, the particle sizes of the titanium powder and the aluminum powder are controlled to be 50-100 nm.
Optionally, in the step S2, the titanium powder and the aluminum powder are mixed according to a mass ratio of 5-6:1.
Further optionally, in step S2, the titanium powder and the aluminum powder are mixed by grinding and mixing.
Optionally, the plasma spraying parameters are: voltage: 100-120V; current flow: 750-800A; spraying distance: 35-40 mm; the working gas is nitrogen, and the flow rate is as follows: 70-80L/h.
Optionally, the thickness of the coating is 2.5-4 μm.
Optionally, in the step S3, the plasma spraying coating treatment is performed in two steps, the thickness of the first coating is 1-1.5 μm, and the second coating is the thickness of the coating.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. According to the application, titanium and aluminum with a specific proportion are used as coating targets, nitrogen is used as working gas, and high-energy density pulse plasma spraying equipment is used for coating a film on the surface of the cutter to form a composite coating of Ti-N cubic crystals and Al-N cubic crystals, so that the surface hardness of the cutter is effectively enhanced, and the cutter still has higher surface hardness under the high-temperature condition.
2. The application adopts specific plasma spraying parameters, the obtained film coating is compact, the film base binding force is larger, the coating is not easy to fall off, and the service life of the cutter in processing high-temperature materials is effectively prolonged.
Detailed Description
The present application will be described in further detail with reference to examples.
The application provides a method for plating a high-density coating on the surface of a high-temperature material processing cutter, which comprises the following steps: s1, polishing and cleaning the surface of a cutter to be coated with a film;
S2, mixing titanium powder and aluminum powder according to a mass ratio of 4-9:1 to obtain mixed powder, and then preparing the mixed powder into a target electrode in a powder metallurgy mode;
S3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, so as to finish coating of the high-density coating;
the plasma spraying parameters are as follows: voltage: 100-120V; current flow: 650-850A; spraying distance: 30-50 mm; the working gas is nitrogen, and the flow rate is as follows: 60-100L/h; the thickness of the coating is not more than 4 mu m.
The application adopts the high energy density pulse plasma spraying, takes titanium and aluminum as target materials, forms the composite coating formed by titanium nitride and aluminum nitride on the surface of the cutter, adopts specific spraying parameters, has higher energy density and smaller spraying distance of the plasma spraying, and has higher hardness and high temperature resistance.
The following are examples of the application
The working gas of the examples and comparative examples of the present application employed nitrogen gas having a purity of 99.997%; the coating cutter is a milling cutter made of high-speed steel materials.
Examples 1 to 6
The target materials of the embodiments 1 to 6 adopt titanium powder and aluminum powder with particle sizes of 150 to 200nm, and the purity is not lower than 99.5 percent.
Example 1
The method for plating the high-density coating on the surface of the high-temperature material processing cutter comprises the following steps:
S1, polishing the surface of a cutter to be coated until the surface roughness is within 1 mu m, and then flushing the surface with absolute ethyl alcohol for 3 times to obtain a polished and cleaned cutter;
s2, fully mixing titanium powder and aluminum powder according to a mass ratio of 4:1 to obtain mixed powder, and then preparing the mixed powder into a target electrode in a powder metallurgy mode;
and S3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, and completing coating of the high-density coating.
The plasma spraying parameters are as follows: voltage: 100V; current flow: 650A; spraying distance: 50mm; the working gas is nitrogen, and the flow rate is as follows: 60L/h; the coating thickness was 4. Mu.m.
Example 2
The method for plating the high-density coating on the surface of the high-temperature material processing cutter comprises the following steps:
S1, polishing the surface of a cutter to be coated until the surface roughness is within 1 mu m, and then flushing the surface with absolute ethyl alcohol for 3 times to obtain a polished and cleaned cutter;
S2, mixing titanium powder and aluminum powder according to a mass ratio of 4:1 to obtain mixed powder, and preparing the mixed powder into a target electrode by using a powder metallurgy mode;
and S3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, and completing coating of the high-density coating.
The plasma spraying parameters are as follows: voltage: 120V; current flow: 850A; spraying distance: 50mm; the working gas is nitrogen, and the flow rate is as follows: 100L/h; the coating thickness was 4. Mu.m.
Example 3
The method for plating the high-density coating on the surface of the high-temperature material processing cutter comprises the following steps:
S1, polishing the surface of a cutter to be coated until the surface roughness is within 1 mu m, and then flushing the surface with absolute ethyl alcohol for 3 times to obtain a polished and cleaned cutter;
S2, mixing titanium powder and aluminum powder according to a mass ratio of 4:1 to obtain mixed powder, and preparing the mixed powder into a target electrode by using a powder metallurgy mode;
and S3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, and completing coating of the high-density coating.
The plasma spraying parameters are as follows: voltage: 110V; current flow: 750A; spraying distance: 35mm; the working gas is nitrogen, and the flow rate is as follows: 70L/h; the coating thickness was 4. Mu.m.
Example 4
The method for plating the high-density coating on the surface of the high-temperature material processing cutter comprises the following steps:
S1, polishing the surface of a cutter to be coated until the surface roughness is within 1 mu m, and then flushing the surface with absolute ethyl alcohol for 3 times to obtain a polished and cleaned cutter;
S2, mixing titanium powder and aluminum powder according to a mass ratio of 4:1 to obtain mixed powder, and preparing the mixed powder into a target electrode by using a powder metallurgy mode;
and S3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, and completing coating of the high-density coating.
The plasma spraying parameters are as follows: voltage: 120V; current flow: 800A; spraying distance: 40mm; the working gas is nitrogen, and the flow rate is as follows: 80L/h; the coating thickness was 4. Mu.m.
Example 5
The method for plating the high-density coating on the surface of the high-temperature material processing cutter comprises the following steps:
S1, polishing the surface of a cutter to be coated until the surface roughness is within 1 mu m, and then flushing the surface with absolute ethyl alcohol for 3 times to obtain a polished and cleaned cutter;
s2, mixing titanium powder and aluminum powder according to a mass ratio of 5:1 to obtain mixed powder, and preparing the mixed powder into a target electrode by using a powder metallurgy mode;
and S3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, and completing coating of the high-density coating.
The plasma spraying parameters are as follows: voltage: 120V; current flow: 800A; spraying distance: 40mm; the working gas is nitrogen, and the flow rate is as follows: 80L/h; the coating thickness was 4. Mu.m.
Example 6
The method for plating the high-density coating on the surface of the high-temperature material processing cutter comprises the following steps:
S1, polishing the surface of a cutter to be coated until the surface roughness is within 1 mu m, and then flushing the surface with absolute ethyl alcohol for 3 times to obtain a polished and cleaned cutter;
s2, mixing titanium powder and aluminum powder according to a mass ratio of 6:1 to obtain mixed powder, and preparing the mixed powder into a target electrode by using a powder metallurgy mode;
and S3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, and completing coating of the high-density coating.
The plasma spraying parameters are as follows: voltage: 120V; current flow: 800A; spraying distance: 40mm; the working gas is nitrogen, and the flow rate is as follows: 80L/h; the coating thickness was 4. Mu.m.
Examples 7 to 10
Example 7
This example is substantially the same as example 5, except that titanium powder and aluminum powder having a particle diameter of 50 to 100nm are used as the target.
Example 8
The difference between this example and example 7 is that in step S1, the tool is polished to a surface roughness of 0.5 μm or less.
Example 9
The difference between this embodiment and embodiment 8 is that in step S1, the washing is performed by completely immersing in absolute ethanol, and then ultrasonic washing for 15 min; the ultrasonic parameters adopted in the cleaning are as follows: the temperature is 35 ℃, the ultrasonic frequency is 50kHz + -5 Hz, and the ultrasonic power is 1kW + -5W.
Example 10
The difference between this embodiment and embodiment 9 is that in step S3, the plasma spraying operation is performed in two steps; the thickness of the first sprayed coating is 1.5 mu m, and the thickness of the second sprayed coating is 2.5 mu m.
The following are comparative examples of the present application
Comparative example 1
The application adopts a magnetron sputtering coating process to coat a titanium nitride coating on the surface of a cutter, and the titanium nitride coating is taken as a comparative example 1.
Cutter polishing and cleaning are exactly the same as in step S1 of example 10.
The magnetron sputtering coating parameters are as follows: vacuum degree: 5X 10 -4 Pa; working air pressure: 0.5Pa; argon flow rate: 90sccm; nitrogen flow rate: 4sccm; chamber temperature: 150 ℃; bias voltage: 35V; the target material is titanium with the purity of 99.5 percent; target power: 180W; the thickness of the coating film is 50 mu m.
Comparative example 2
This comparative example is identical to example 10 except that only titanium powder was used as the target.
Performance detection
The tools of examples 1 to 10 of the present application and the tools of comparative examples 1 to 2 were subjected to performance test, and the surface hardness, the surface hardness after heating at 800℃for 1 hour, and the film-base bonding force were measured, and the specific test results are shown in Table 1.
The hardness is detected by a hardness detector, and the film base binding force is detected according to GB/T18682-2002.
Table 1 results of performance tests for examples 1 to 10 and comparative examples 1 to 2
| Hardness of the comparison table | High temperature surface hardness | Film-based bonding force | |
| Example 1 | 14.8 | 14.2 | 80N or more |
| Example 2 | 14.9 | 14.3 | 80N or more |
| Example 3 | 15.1 | 14.6 | 80N or more |
| Example 4 | 15.2 | 14.6 | 80N or more |
| Example 5 | 15.7 | 15.1 | 80N or more |
| Example 6 | 15.6 | 14.9 | 80N or more |
| Example 7 | 16.2 | 15.7 | 80N or more |
| Example 8 | 16.4 | 15.8 | 80N or more |
| Example 9 | 16.5 | 15.9 | 80N or more |
| Example 10 | 17.2 | 16.7 | 80N or more |
| Comparative example 1 | 12.2 | 7.6 | 40N or more |
| Comparative example 2 | 17.4 | 11.8 | 80N or more |
As can be seen from the data of table 1, the tools of examples 1 to 12 of the present application have a slightly better surface hardness than the tool of comparative example 1, which is comparable to the tool of comparative example 2; the cutters of the embodiments 1 to 12 of the application can still keep higher surface hardness after high-temperature heating treatment, and the surface hardness is obviously superior to that of the cutters of the comparative examples 1 to 2, and the high-temperature performance is obviously more excellent. In addition, the cutters of examples 1 to 12 of the present application all had a film-base bonding force exceeding 80N, far exceeding that of the cutter of comparative example 1. From this, it can be seen that the process of the present application can plate a high-density coating on a tool, and the performance of the obtained coating is significantly better than that of the prior art.
As can also be seen from the data in table 1, the tool of example 10 of the present application has significantly better performance than the tools of examples 1-9; the cutters of examples 7 to 10 of the present application also exhibited significantly better performance than the cutters of examples 1 to 6. Therefore, after the plasma spraying parameters are optimized and the particle size of the target material is controlled, the performance of the coating film can be further improved.
Application experiment
The tools of example 10 of the present application and the tools of comparative examples 1 to 2 were used to mill a Q215B steel plate heated to about 800 ℃, and the service lives of the three tools were measured, and the measurement results are shown in table 2.
Table 2 results of life test for example 10 and comparative examples 1 to 2
| Lifetime (min) | |
| Example 10 | 98 |
| Comparative example 1 | 32 |
| Comparative example 2 | 41 |
As can be seen from the data in Table 2, the service life of the cutter of the embodiment 10 of the application for processing the high-temperature Q215B steel plate is longer than that of the cutters of the comparative examples 1 and 2 by more than 1 time, and the coating process of the application can be fully proved, and the prepared cutter has better performance in processing high-temperature materials.
The applicant carries out related experiments on the thickness of the coating, and under the condition of the same technological parameters, the larger the thickness of the coating is, the more excellent the cutter performance is; when the thickness of the coating is less than 2.5 mu m, the cutter performance is obviously reduced. Therefore, the thickness of the plating film should be controlled to be preferably 2.5 to 4. Mu.m.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. A method for plating a high density coating on a surface of a high temperature material processing tool, comprising the steps of:
s1, polishing and cleaning the surface of a cutter to be coated with a film;
S2, mixing titanium powder and aluminum powder according to a mass ratio of 4-9:1 to obtain mixed powder, and then preparing a target electrode by using a powder metallurgy mode;
S3, carrying out plasma spraying coating treatment on the surface to be coated of the tool polished and cleaned in the step S1 by using high-energy density pulse plasma spraying equipment on the target electrode obtained in the step S2, so as to finish coating of the high-density coating;
The plasma spraying parameters are as follows: voltage: 100-120V; current flow: 650-850A; spraying distance: 30-50 mm; the working gas is nitrogen, and the flow rate is as follows: 60-100L/h; the thickness of the coating is not more than 4 mu m.
2. The method for plating a high-density coating on a surface of a high-temperature material processing tool according to claim 1, wherein in the step S1, the surface roughness of the tool to be plated is polished to be within 0.5 μm.
3. The method for plating a high-density coating on a surface of a high-temperature material processing tool according to claim 1, wherein in the step S1, the cleaning is performed by ultrasonic cleaning with absolute ethyl alcohol.
4. The method for plating a high-density coating on a surface of a high-temperature material processing tool according to claim 3, wherein in the step S1, the ultrasonic cleaning time is controlled to be 15-30 min.
5. The method for plating a high-density coating on a surface of a high-temperature material processing tool according to claim 1, wherein in the step S2, particle diameters of titanium powder and aluminum powder are controlled to be 50-100 nm.
6. The method for plating a high-density coating on a surface of a high-temperature material processing tool according to claim 1, wherein in the step S2, titanium powder and aluminum powder are mixed according to a mass ratio of 5-6:1.
7. The method for plating a high-density coating on a surface of a high-temperature material processing tool according to claim 6, wherein in the step S2, the titanium powder and the aluminum powder are mixed by grinding and mixing.
8. The method for high-density coating on a high-temperature material processing tool surface according to claim 1, wherein the plasma spraying parameters are: voltage: 100-120V; current flow: 750-800A; spraying distance: 35-40 mm; the working gas is nitrogen, and the flow rate is as follows: 70-80L/h.
9. The method for plating a high-density coating on a surface of a high-temperature material processing tool according to claim 1, wherein the thickness of the coating is 2.5-4 μm. .
10. The method for coating a high-density coating on a surface of a high-temperature material processing tool according to claim 9, wherein in the step S3, the plasma spraying coating treatment is performed in two steps, namely, a first coating thickness of 1-1.5 μm and a second coating thickness of the coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410328306.3A CN118222986A (en) | 2024-03-21 | 2024-03-21 | Method for plating high-density coating on surface of high-temperature material processing cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410328306.3A CN118222986A (en) | 2024-03-21 | 2024-03-21 | Method for plating high-density coating on surface of high-temperature material processing cutter |
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