CN114232046A - Equipment for carrying out thermoelectric chemical oxidation treatment on aluminum foil - Google Patents
Equipment for carrying out thermoelectric chemical oxidation treatment on aluminum foil Download PDFInfo
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- CN114232046A CN114232046A CN202111674789.5A CN202111674789A CN114232046A CN 114232046 A CN114232046 A CN 114232046A CN 202111674789 A CN202111674789 A CN 202111674789A CN 114232046 A CN114232046 A CN 114232046A
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- electrolytic cell
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/024—Anodisation under pulsed or modulated current or potential
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- Chemical Kinetics & Catalysis (AREA)
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The equipment for performing the thermoelectric chemical oxidation treatment on the aluminum foil comprises a first electrolytic cell, a second electrolytic cell and a plurality of rollers, wherein electrolyte is arranged in the first electrolytic cell and the second electrolytic cell, and the electrolyte in the first electrolytic cell and the electrolyte in the second electrolytic cell are respectively and electrically connected with two poles of a thermoelectric chemical oxidation power supply. The aluminum foil to be treated sequentially bypasses the rollers, and at least two rollers are respectively soaked in the electrolyte in the first electrolytic cell and the electrolyte in the second electrolytic cell, so that the aluminum foil to be treated passes through the electrolyte in the first electrolytic cell and the electrolyte in the second electrolytic cell. According to the device, the aluminum foil is skillfully used as a conductor to be communicated with the electrolyte in the first electrolytic cell and the electrolyte in the second electrolytic cell to form a complete loop with a power supply, and when the thermoelectric chemical oxidation treatment is carried out, unwinding, oxidation and winding are carried out simultaneously, so that the continuous thermoelectric chemical oxidation treatment of the aluminum foil can be realized while unwinding and oxidation and while winding, and the device is suitable for industrial large-scale production.
Description
Technical Field
The invention relates to the technical field of aluminum foil surface treatment, in particular to equipment capable of continuously carrying out thermoelectric chemical oxidation treatment on an aluminum foil.
Background
The thermoelectric chemical oxidation is a new surface treatment technology which develops rapidly at home and abroad in recent years, and is developed on the basis of anodic oxidation, namely microplasma oxidation, plasma thermoelectric chemical oxidation, plasma-enhanced electrochemical surface ceramization and the like. The method is characterized in that a high working voltage is adopted for the thermoelectric chemical oxidation, a valve metal workpiece is used as an anode, an electrolytic cell is used as a cathode, a special power supply is used for applying voltage to the cathode and the anode, a voltage working area is led into a high-voltage discharge area from a Faraday area of a common anodic oxidation method, a reaction is generated on the anode under the action of instantaneous high temperature and high voltage generated by arc discharge, so that corona, glow, micro-arc discharge and even spark spots are generated on the surface of the valve metal workpiece, a compact oxide ceramic membrane/layer is formed in situ on the surface of the valve metal, and further the surface modification and strengthening of the workpiece are achieved. The existing technical literature about the thermoelectric chemical oxidation treatment of the aluminum foil mostly stays at the research demonstration and sample trial-manufacturing experimental stage, and no device capable of realizing large-scale industrial production exists.
Disclosure of Invention
The invention aims to provide equipment capable of carrying out large-scale industrial thermal electrochemical oxidation treatment on an aluminum foil.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides an equipment that carries out thermoelectric chemical oxidation to aluminium foil handles, includes electrolytic bath one and electrolytic bath two, has electrolyte in electrolytic bath one and the electrolytic bath two, still includes a plurality of running rollers, and the aluminium foil that waits to handle bypasses the running roller in proper order, and has two running rollers at least and soaks respectively in the electrolyte in electrolytic bath one and electrolytic bath two and make the aluminium foil that waits to handle pass the electrolyte in electrolytic bath one and electrolytic bath two. The electrochemical oxidation power supply also comprises two electrode plates which are respectively placed in the first electrolytic cell and the second electrolytic cell and are respectively connected with two poles of the thermal electrochemical oxidation power supply.
Furthermore, the number of the rollers is three, the first roller is positioned between the first electrolytic cell and the second electrolytic cell, the second roller and the third roller are respectively soaked in the electrolyte in the first electrolytic cell and the electrolyte in the second electrolytic cell, and the aluminum foil to be treated sequentially bypasses from the lower part of the second roller, the upper part of the first roller and the lower part of the third roller.
And the aluminum foil to be treated sequentially bypasses from the upper part of the roller four, the lower part of the roller two, the upper part of the roller one, the lower part of the roller three and the upper part of the roller five.
Furthermore, the lower parts of the second roller and the third roller are only partially immersed in the electrolyte, and only the part of the aluminum foil to be treated, which is tightly attached to the second roller and the third roller when the aluminum foil to be treated bypasses the second roller and the third roller, is immersed in the electrolyte
Furthermore, the aluminum foil processing device further comprises an unwinding device and a winding device, and two ends of the aluminum foil to be processed are wound on the unwinding device and the winding device respectively.
Furthermore, bearing seats at two ends of the roller are positioned on the side wall of the first electrolytic cell or the side wall of the second electrolytic cell.
Furthermore, the device also comprises a frame, and the bearing seats at the two ends of the roller are positioned on the frame.
And the water inlet and the water outlet on the first electrolytic cell are respectively connected with a water outlet pipe and a water inlet pipe of the electrolyte circulation system II, and the water inlet and the water outlet on the second electrolytic cell are respectively connected with a water outlet pipe and a water inlet pipe of the electrolyte circulation system II.
Furthermore, the two electrode plates are respectively fixed at the bottoms of the first electrolytic cell and the second electrolytic cell through four support columns.
Furthermore, one of the four support columns is a conducting rod, one end of the conducting rod extends out of the electrolytic cell and is connected with a power supply through a lead, and the other end of the conducting rod is welded or screwed on the electrode plate.
Further, the thermoelectric chemical oxidation power supply is a direct current, monophasic pulse, alternating current, asymmetric alternating current or bidirectional asymmetric pulse power supply.
Further, the thermoelectric chemical oxidation power supply is an alternating current, asymmetric alternating current or bidirectional asymmetric pulse power supply.
Further, the electrolyte adopts a silicate system, a borate system or an aluminate system.
Further, the temperature of the electrolyte is 10-50 ℃.
Compared with the prior art, the invention has the beneficial technical effects that:
the equipment of the invention skillfully uses the aluminum foil as a conductor to be communicated with the electrolyte in the first electrolytic cell and the second electrolytic cell to form a complete loop with the power supply, and when the thermoelectric chemical oxidation treatment is carried out, the alternating current, the asymmetric alternating current or the bidirectional asymmetric pulse power supply enables the aluminum foil immersed in the electrolyte in the first electrolytic cell and the second electrolytic cell to alternately become anodes to generate the thermoelectric chemical oxidation. When the device disclosed by the invention is used for carrying out the thermoelectric chemical oxidation treatment, the unreeling, the oxidation and the reeling are carried out simultaneously, the unreeling and the oxidation can be carried out simultaneously, the continuous thermoelectric chemical oxidation treatment on the aluminum foil is realized, and the device is suitable for industrial large-scale production.
Drawings
FIG. 1 is a schematic structural view (top view) of an apparatus in an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A in FIG. 1;
FIG. 3 is a schematic structural view of an apparatus in embodiment 2 of the present invention;
FIG. 4 is a schematic diagram showing the relative positions of rollers and the electrolyte liquid level in the electrolytic cell in example 2 of the present invention.
The specific implementation mode is as follows:
the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1 and 2, an apparatus for performing a thermal electrochemical oxidation treatment on an aluminum foil includes a first electrolytic cell 2, a second electrolytic cell 3, three rollers (a first roller 4, a second roller 5, and a third roller 6), two electrode plates 7, an unwinding device, and a winding device (not shown in the drawings), wherein the first electrolytic cell 2 and the second electrolytic cell 3 have therein an electrolyte, and the first electrolytic cell 2 and the second electrolytic cell 3 are made of an insulating material such as a PVB sheet. Bearing blocks at two ends of the rollers (4, 5 and 6) are fixed on the edges of the electrolytic baths (2 and 3), the roller I4 is positioned between the electrolytic bath I2 and the electrolytic bath II 3, and the roller II 5 and the roller III 6 are completely immersed in the electrolyte in the electrolytic bath I2 and the electrolytic bath II 3. In addition, the bearing seat of the first roller 4 can be fixed on the bracket which stretches across the first electrolytic cell 2 and the second electrolytic cell 3 to be higher than the bearing seats of the second roller 5 and the third roller 6, so that the side wall of the end part of the electrolytic cell is prevented from scraping aluminum foil. The aluminum foil 1 sequentially bypasses the lower part of the second roller 5, the upper part of the first roller 4 and the lower part of the third roller 6, and two ends of the aluminum foil 1 are respectively wound on the unwinding device and the winding device. When the aluminum foil 1 bypasses the second roller 5 and the third roller 6, the upper surface and the lower surface both contact with the electrolyte and participate in reaction at the same time, and the mode can realize the simultaneous thermoelectric chemical oxidation treatment on the two surfaces of the aluminum foil 1.
The two electrode plates 7 are respectively arranged in the first electrolytic cell 2 and the second electrolytic cell 3, and the electrode plates 7 are fixed at the bottoms of the electrolytic cells (2 and 3) through four support columns 8. One of the four support columns 8 is a conductive rod, one end of the conductive rod extends out of the electrolytic cell and is connected with a power supply through a lead, and the other end of the conductive rod is screwed on the electrode plate.
The thermoelectric chemical oxidation power supply adopts an asymmetric alternating current power supply, the electrolyte adopts an aluminate system, and the temperature of the electrolyte is controlled at 30 ℃.
When the thermochemical oxidation treatment is performed, the unwinding device and the winding device are started, the aluminum foil 1 is pulled by the winding device, the unwinding device and the winding device are adjusted and controlled to tension the aluminum foil so that the appropriate tension is kept on the aluminum foil, and then the moving speed of the aluminum foil 1 is controlled by controlling the rotating speed of the unwinding device and the winding device so that the moving speed of the aluminum foil 1 is 1 m/min.
And finally, starting an asymmetric alternating current power supply, and conducting the electrolyte in the first electrolytic cell 2 and the second electrolytic cell 3 by using the aluminum foil 1 as a conductor. The asymmetric alternating current power supply enables the aluminum foil parts immersed in the electrolyte in the first electrolytic cell 2 and the second electrolytic cell 3 to alternately become anodes, and the aluminum foil 1 is subjected to thermal electrochemical oxidation in the process of running. Unreel, oxidation, rolling go on simultaneously, unreel while oxidation, oxidation while rolling can realize carrying out continuous thermal electrochemical oxidation treatment to aluminium foil 1, realize large-scale continuous production.
Example 2
As shown in fig. 3, the present embodiment is different from embodiment 1 in that the present embodiment further includes a roller four 9 and a roller five 10, the roller four 9 and the roller five 10 are located outside the electrolytic cells (2, 3), the bearing seats at two ends of the roller four 9, the roller two 5, the roller one 4, the roller three 6, and the roller five 10 are fixed on the frame 11, and the first electrolytic cell 2 and the second electrolytic cell 3 are enclosed in the frame 11. The roller four 9, the roller two 5, the roller one 4, the roller three 6 and the roller five 10 are sequentially arranged, the roller two 5 and the roller three 6 are respectively positioned in the electrolyte one 2 and the electrolyte tank two 3, and the lower parts of the roller two 5 and the roller three 6 are only partially immersed in the electrolyte 14 (figure 4). The aluminum foil 1 to be processed sequentially bypasses from the upper part of the roller wheel four 9, the lower part of the roller wheel two 5, the upper part of the roller wheel one 4, the lower part of the roller wheel three 6 and the upper part of the roller wheel five 10, and two ends of the aluminum foil 1 to be processed are respectively wound on the unwinding device 12 and the winding device 13.
The aluminum foil 1 is made to pass through the first electrolyte 2 and the electrolyte 14 in the electrolyte tank 3 by the second roller 5 and the third roller 6. The roller four 9 and the roller five 10 enable the aluminum foil 1 to have a downward inclination angle before entering the first electrolytic cell 2 and when coming out of the second electrolytic cell 3, so that two ends of the aluminum foil 1 can be conveniently wound on the unwinding device 12 and the winding device 13 on two sides.
When the thermochemical oxidation treatment is performed, the unwinding device 12 and the winding device 13 are started, the aluminum foil 1 is pulled by the winding device 13, the aluminum foil 1 is tensioned by adjusting the unwinding device 12 and the winding device 13 to keep proper tension, and the moving speed of the aluminum foil 1 is controlled by controlling the rotating speed of the unwinding device 12 and the winding device 13, so that the moving speed of the aluminum foil 1 is 1 m/min. When the aluminum foil 1 bypasses the second roller 5 and the third roller 6, only one section of the part which is tightly attached to the rollers (5, 6) is always immersed into the electrolyte 14, and because the upper surface of the aluminum foil immersed into the electrolyte 14 is tightly attached to the rollers (5, 6) and is not contacted with the electrolyte, only the lower surface of the section of the aluminum foil is contacted with the electrolyte 14, and when the thermoelectric chemical oxidation treatment is carried out, only the lower surface of the aluminum foil participates in the reaction. This way, it is possible to perform the thermo-electrochemical oxidation treatment on only one side of the aluminum foil 1.
And finally, starting an asymmetric alternating current power supply, and conducting the electrolyte in the first electrolytic cell 2 and the second electrolytic cell 3 by using the aluminum foil 1 as a conductor. The asymmetric alternating current power supply enables the aluminum foil parts immersed in the electrolyte in the first electrolytic cell 2 and the second electrolytic cell 3 to alternately become anode aluminum foils 1 to generate thermal electrochemical oxidation in the process of running. Unreel, oxidation, rolling go on simultaneously, unreel while oxidation, oxidation while rolling can realize carrying out continuous thermal electrochemical oxidation treatment to aluminium foil 1, realize large-scale continuous production.
Example 3
Compared with the embodiments 1 and 2, the difference lies in that the electrolytic cell further comprises two independent electrolyte circulating systems I and II, the first electrolytic cell 2 and the second electrolytic cell 3 are also provided with a water inlet and a water outlet, the water inlet and the water outlet of the first electrolytic cell 2 are respectively connected with a water outlet pipe and a water inlet pipe of the electrolyte circulating system I, and the water inlet and the water outlet of the second electrolytic cell 3 are respectively connected with a water outlet pipe and a water inlet pipe of the electrolyte circulating system II. The electrolyte in the electrolytic cell can be kept at a relatively constant temperature (about 30 ℃) through the pumping flow rate of the electrolyte circulating system.
Claims (10)
1. An apparatus for performing thermoelectric chemical oxidation treatment on aluminum foil is characterized by comprising a first electrolytic cell and a second electrolytic cell, wherein the first electrolytic cell and the second electrolytic cell are internally provided with electrolyte,
the aluminum foil to be treated sequentially bypasses the rollers, and at least two rollers are respectively soaked in the electrolyte in the first electrolytic cell and the electrolyte in the second electrolytic cell so that the aluminum foil to be treated passes through the electrolyte in the first electrolytic cell and the electrolyte in the second electrolytic cell;
the electrochemical oxidation power supply also comprises two electrode plates which are respectively placed in the first electrolytic cell and the second electrolytic cell and are respectively connected with two poles of the thermal electrochemical oxidation power supply.
2. The apparatus as claimed in claim 1, wherein the number of the rollers is three, the first roller is located between the first electrolytic cell and the second electrolytic cell, the second roller and the third roller are respectively immersed in the electrolyte in the first electrolytic cell and the second electrolytic cell, and the aluminum foil to be treated sequentially passes through the lower portion of the second roller, the upper portion of the first roller and the lower portion of the third roller.
3. The apparatus of claim 2, further comprising a fourth roller and a fifth roller, wherein the fourth roller, the second roller, the first roller, the third roller and the fifth roller are sequentially arranged, and the aluminum foil to be treated sequentially passes through the upper portion of the fourth roller, the lower portion of the second roller, the upper portion of the first roller, the lower portion of the third roller and the upper portion of the fifth roller.
4. The apparatus as claimed in claim 2, wherein the lower portions of the second and third rollers are only partially immersed in the electrolyte, and the aluminum foil to be treated is only partially immersed in the electrolyte while bypassing the second and third rollers.
5. The apparatus of claim 1, further comprising an unwinding device and a winding device, wherein two ends of the aluminum foil to be processed are wound around the unwinding device and the winding device, respectively.
6. The apparatus as claimed in claim 1, wherein the bearing seats at both ends of the first roller, the second roller and the third roller are located on the side wall of the first electrolytic cell or the second electrolytic cell.
7. The apparatus of claim 1, further comprising a frame, wherein the first electrolyte tank and the second electrolyte tank are enclosed in the frame, and the bearing seats at two ends of the first roller, the second roller and the third roller are located on the frame.
8. The apparatus as claimed in any one of claims 1 to 7, further comprising two separate electrolyte circulation systems, wherein the first electrolytic cell and the second electrolytic cell have a water inlet and a water outlet, the water inlet and the water outlet of the first electrolytic cell are respectively connected to the water outlet pipe and the water inlet pipe of the electrolyte circulation system, and the water inlet and the water outlet of the second electrolytic cell are respectively connected to the water outlet pipe and the water inlet pipe of the electrolyte circulation system.
9. The apparatus of claim 1, wherein the two electrode plates are fixed to the bottom of the first electrolytic cell and the bottom of the second electrolytic cell by four support columns.
10. The apparatus as claimed in claim 9, wherein one of the four support columns is a conductive rod, one end of the conductive rod extends out of the electrolytic cell and is connected to a power supply through a wire, and the other end of the conductive rod is welded or screwed to the electrode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111674789.5A CN114232046A (en) | 2021-12-31 | 2021-12-31 | Equipment for carrying out thermoelectric chemical oxidation treatment on aluminum foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111674789.5A CN114232046A (en) | 2021-12-31 | 2021-12-31 | Equipment for carrying out thermoelectric chemical oxidation treatment on aluminum foil |
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| CN114232046A true CN114232046A (en) | 2022-03-25 |
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| CN202111674789.5A Pending CN114232046A (en) | 2021-12-31 | 2021-12-31 | Equipment for carrying out thermoelectric chemical oxidation treatment on aluminum foil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808091A (en) * | 2022-05-26 | 2022-07-29 | 西比里电机技术(苏州)有限公司 | Wind-control electrochemical oxidation single-side foil plating equipment |
| CN115928168A (en) * | 2022-11-30 | 2023-04-07 | 浙江中行新材料科技有限公司 | Aluminum-based corrosion-resistant wear-resistant ceramic film and preparation method thereof |
| CN115976602A (en) * | 2022-12-31 | 2023-04-18 | 诸暨市中俄联合材料实验室 | Titanium-based wear-resistant coating with reticulate pattern structure and preparation method thereof |
| WO2024113457A1 (en) * | 2022-11-30 | 2024-06-06 | 浙江中行新材料科技有限公司 | Aluminum-based corrosion-resistant and wear-resistant ceramic film layer, overhead line, and preparation method therefor |
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|---|---|---|---|---|
| US3865700A (en) * | 1973-05-18 | 1975-02-11 | Fromson H A | Process and apparatus for continuously anodizing aluminum |
| US4201650A (en) * | 1977-03-22 | 1980-05-06 | Sumitomo Metal Industries, Ltd. | Apparatus for continuous electrolytic descaling of steel wire with mill scales |
| CN112813477A (en) * | 2020-12-24 | 2021-05-18 | 西比里电机技术(苏州)有限公司 | Method and equipment for moving workpiece type thermoelectric chemical oxidation |
| CN214361765U (en) * | 2020-12-31 | 2021-10-08 | 西比里电机技术(苏州)有限公司 | Parallel multistage thermoelectric chemical oxidation plating tank |
| CN214694408U (en) * | 2020-12-30 | 2021-11-12 | 西比里电机技术(苏州)有限公司 | Series-connection type multifunctional treatment thermoelectric chemical oxidation plating tank |
-
2021
- 2021-12-31 CN CN202111674789.5A patent/CN114232046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3865700A (en) * | 1973-05-18 | 1975-02-11 | Fromson H A | Process and apparatus for continuously anodizing aluminum |
| US4201650A (en) * | 1977-03-22 | 1980-05-06 | Sumitomo Metal Industries, Ltd. | Apparatus for continuous electrolytic descaling of steel wire with mill scales |
| CN112813477A (en) * | 2020-12-24 | 2021-05-18 | 西比里电机技术(苏州)有限公司 | Method and equipment for moving workpiece type thermoelectric chemical oxidation |
| CN214694408U (en) * | 2020-12-30 | 2021-11-12 | 西比里电机技术(苏州)有限公司 | Series-connection type multifunctional treatment thermoelectric chemical oxidation plating tank |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808091A (en) * | 2022-05-26 | 2022-07-29 | 西比里电机技术(苏州)有限公司 | Wind-control electrochemical oxidation single-side foil plating equipment |
| CN114808091B (en) * | 2022-05-26 | 2024-04-19 | 西比里电机技术(苏州)有限公司 | Wind-control thermoelectric chemical oxidation single-sided foil plating equipment |
| CN115928168A (en) * | 2022-11-30 | 2023-04-07 | 浙江中行新材料科技有限公司 | Aluminum-based corrosion-resistant wear-resistant ceramic film and preparation method thereof |
| WO2024113457A1 (en) * | 2022-11-30 | 2024-06-06 | 浙江中行新材料科技有限公司 | Aluminum-based corrosion-resistant and wear-resistant ceramic film layer, overhead line, and preparation method therefor |
| CN115976602A (en) * | 2022-12-31 | 2023-04-18 | 诸暨市中俄联合材料实验室 | Titanium-based wear-resistant coating with reticulate pattern structure and preparation method thereof |
| CN115976602B (en) * | 2022-12-31 | 2023-09-19 | 诸暨市中俄联合材料实验室 | Titanium-based wear-resistant coating with reticulate pattern structure and preparation method thereof |
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