CN115124839A - Composite material hub cover suitable for being internally coated with wave-absorbing coating and preparation method thereof - Google Patents
Composite material hub cover suitable for being internally coated with wave-absorbing coating and preparation method thereof Download PDFInfo
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- CN115124839A CN115124839A CN202210762770.4A CN202210762770A CN115124839A CN 115124839 A CN115124839 A CN 115124839A CN 202210762770 A CN202210762770 A CN 202210762770A CN 115124839 A CN115124839 A CN 115124839A
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- hub cover
- wave
- wheel hub
- absorbing coating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B7/00—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins
- B60B7/0013—Hub caps
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a composite material wheel hub cover suitable for being internally coated with a wave-absorbing coating and a preparation method thereof, and belongs to the technical field of composite materials and radar stealth. The composite material wheel hub cover comprises a wheel hub cover body, wherein a mounting boss and a plurality of reinforcing ribs are arranged on the front surface of the wheel hub cover body, the plurality of reinforcing ribs are annularly and uniformly arranged on the outer side of the mounting boss, and an airflow port is formed in one side of each reinforcing rib. According to the composite material wheel hub cover suitable for being internally coated with the wave-absorbing coating and the preparation method thereof, the wheel hub cover body is manufactured by a resin-based composite material doped with chopped carbon fibers through a hot-press forming process, the material has excellent mechanical properties and physical and chemical properties, the relative dielectric constant of the material is 4.4-4.6, the composite material wheel hub cover is suitable for being coated with the wave-absorbing coating on the inner surface of the wheel hub cover, so that the radar stealth function is realized; PSU/PEEK blended resin has the advantages of high mechanical strength, high temperature resistance, impact resistance, fatigue resistance, radiation resistance, good flame retardance and the like, the chopped carbon fibers are doped, so that the mechanical property of the wheel hub cover can be further improved, and the mechanical property that the wheel hub cover does not deform when being treaded by two adults is met.
Description
Technical Field
The invention belongs to the technical field of composite materials and radar stealth, and particularly relates to a composite material hub cover suitable for being internally coated with wave-absorbing coating and a preparation method thereof.
Background
In order to avoid striking and improve the survival capability of military vehicles, the visible light stealth, the infrared stealth, the hyperspectral stealth and the radar stealth of the vehicles are all indispensable. From the analysis of the development trend of air-ground missiles, the radar guidance has the advantages of simple structure, low cost and mature technology, and the missiles equipped with radar guidance are widely applied. Therefore, the radar stealth technology of the vehicle is urgently needed to be rapidly improved. The vehicle is difficult to adopt the appearance stealth design like an aircraft, and the purpose of reducing RCS is mainly realized by means of radar wave-absorbing materials.
The car body can be made of composite materials with wave-absorbing function, and the exposed metal material part can be coated with wave-absorbing coating. The wheel hub is a remarkable radar wave reflection area, and the stealth of the wheel hub is generally solved by additionally arranging a wheel hub cover and coating wave-absorbing coating on the outer surface of the wheel hub cover. However, military vehicles need to adapt to field operations, the driving road conditions and environments are severe, the coated wave-absorbing coating is particularly easy to break and fall off due to the impact of sand and stones, and the stealth function is invalid.
Aiming at the radar stealth of the hub cover, the resin material with certain wave transmission capacity is provided for manufacturing the hub cover base body, and the wave-absorbing coating is coated on the inner surface of the hub cover so as to adapt to severe working conditions. The resin material is required to have not only higher strength, impact resistance and other mechanical properties, but also a specific dielectric constant, and forms impedance gradual change matching with the wave-absorbing material coated on the inner surface, so that the wave-absorbing function of the coating is fully exerted and even enhanced.
Disclosure of Invention
The invention aims to: in order to solve the problems that military vehicles need to adapt to field operations, the driving road condition environment is severe, the coated wave-absorbing coating is particularly easy to break and fall off due to the impact of sand and stones, and the stealth function is invalid, the composite material hub cover suitable for being internally coated with the wave-absorbing coating and the preparation method thereof are provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a cover combined material wheel hub lid of inhaling ripples coating in being fit for, includes the wheel hub lid, the front of wheel hub lid is provided with installation boss and a plurality of strengthening rib, and a plurality of strengthening ribs are annular align to grid in the outside of installation boss, and one side of strengthening rib is provided with the air current mouth.
A composite hub cover suitable for being internally coated with wave-absorbing coating and a preparation method thereof are disclosed, which specifically comprise the following technical characteristics:
s1, weighing PSU and PEEK resin with certain mass;
s2, soaking the PSU/PEEK resin in a solvent of dichloromethane for 2 hours, and then slowly stirring until the resin is completely dissolved;
s3, adding 0.5 part of chopped carbon fibers per 100 parts by mass, accelerating the stirring speed to 1000rpm, and stirring for 2 hours until the chopped carbon fibers are uniformly dispersed in the solution;
s4, pouring the stirred solution into a horizontal shallow groove to enable the solution to level automatically;
s5, taking out the blended resin sheet after the solvent naturally volatilizes to a certain degree, placing the blended resin sheet in an oven, and baking for 3 hours at the temperature of 120 ℃ to completely volatilize the solvent;
s6, cutting the baked blended resin sheet into fine particles;
s7, arranging the die on a flat hot press, coating a release agent, and paving 105% of the design weight;
s8, closing the die, heating to 250 ℃, pressurizing, raising the temperature to 295 ℃ at the heating rate of 2 ℃/min, preserving the temperature for 30min, and naturally cooling to below 60 ℃ after the heat preservation is finished;
and S9, opening the mold, taking out the hub cover, removing burrs, and cleaning to remove the release agent.
As a further description of the above technical solution:
in the S1, the mass ratio of the PSU to the PEEK resin is 88: 12.
As a further description of the above technical solution:
in the S2, the mass ratio of the resin to the solvent is 100: 170.
As a further description of the above technical solution:
in the S3, the chopped carbon fibers have a diameter of 5-7 μm and a length of 4-6 mm.
As a further description of the above technical solution:
in the S4, the depth of the solution is not more than 2 mm.
As a further description of the above technical solution:
in said S6, the size of the fine particles is less than 5 mm.
As a further description of the above technical solution:
in the step S8, the pressurizing pressure is 2-4 MPa.
In this scheme, the thickness that sets up the wheel hub lid is 2.0 +/-0.1 mm, and strengthening rib and the air current mouth that simultaneously set up are in order to ensure that the wheel hub lid possesses sufficient mechanical properties.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the cover hub cover is manufactured by using the resin-based composite material doped with the chopped carbon fibers through a hot press molding process, the material has excellent mechanical properties and physical and chemical properties, the relative dielectric constant of the material is 4.4-4.6, and the material is suitable for being coated with the wave-absorbing coating on the inner surface of the material, so that the radar stealth function is realized.
2. In the invention, the PSU/PEEK blend resin has the advantages of high mechanical strength, high temperature resistance, impact resistance, fatigue resistance, irradiation resistance, good flame retardance and the like, the chopped carbon fibers are doped, the mechanical property of the hub cover can be further improved, the mechanical property that the hub cover bears two adults to step on without deformation is met, the dielectric constant of the material is 4.4-4.6, the material just forms impedance gradual change with the wave-absorbing coating coated on the inner surface, the wave-absorbing strength can be enhanced, the effective frequency range is widened, and the problem that the wave-absorbing coating is frequently dropped and failed in an external state is solved.
Drawings
Fig. 1 is a schematic structural diagram of a composite hub cover suitable for being internally coated with a wave-absorbing coating and a hub cover in the preparation method thereof, provided by the invention;
illustration of the drawings:
1. a hub cap; 2. mounting a boss; 3. reinforcing ribs; 4. and an air flow port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
example 1
The utility model provides a be fit for interior cladding absorbing coating's combined material wheel hub lid, includes wheel hub lid 1, the front of wheel hub lid 1 is provided with installation boss 2 and a plurality of strengthening rib 3, and a plurality of strengthening ribs 3 are annular align to grid in the outside of installation boss 2, and one side of strengthening rib 3 is provided with air current mouth 4.
A composite hub cover suitable for being internally coated with wave-absorbing coating and a preparation method thereof are disclosed, which specifically comprise the following technical characteristics:
s1, weighing PSU and PEEK resin with a certain mass ratio of 88: 12;
s2, soaking the PSU/PEEK resin in a solvent of dichloromethane for 2 hours, and then slowly stirring until the resin is completely dissolved, wherein the mass ratio of the resin to the solvent is 100: 170;
s3, adding 0.5 part of chopped carbon fibers per 100 parts by mass, accelerating the stirring speed to 1000rpm, and stirring for 2 hours until the chopped carbon fibers are uniformly dispersed in the solution, wherein the diameter of the chopped carbon fibers is 5 microns, and the length of the chopped carbon fibers is 4 mm;
s4, pouring the stirred solution into a horizontal shallow groove to enable the solution to automatically level, wherein the depth of the solution is not more than 2 mm;
s5, taking out the blended resin sheet after the solvent naturally volatilizes to a certain degree, placing the blended resin sheet in an oven, and baking for 3 hours at the temperature of 120 ℃ to completely volatilize the solvent;
s6, cutting the baked blended resin sheet into fine particles, wherein the size of the fine particles is less than 5 mm;
s7, arranging the die on a flat hot press, coating a release agent, and paving 105% of the design weight;
s8, closing the die, heating to 250 ℃, pressurizing at the pressure of 2MPa, raising the temperature to 295 ℃ at the heating rate of 2 ℃/min, preserving the temperature for 30min, and naturally cooling to below 60 ℃ after the heat preservation is finished;
and S9, opening the mold, taking out the hub cover 1, removing burrs, and cleaning to remove the release agent.
Example 2
The utility model provides a be fit for interior cladding absorbing coating's combined material wheel hub lid, includes wheel hub lid 1, the front of wheel hub lid 1 is provided with installation boss 2 and a plurality of strengthening rib 3, and a plurality of strengthening ribs 3 are annular align to grid in the outside of installation boss 2, and one side of strengthening rib 3 is provided with air current mouth 4.
A composite hub cover suitable for being internally coated with wave-absorbing coating and a preparation method thereof are disclosed, which specifically comprise the following technical characteristics:
s1, weighing PSU and PEEK resin with a certain mass ratio of 88: 12;
s2, soaking the PSU/PEEK resin in a solvent of dichloromethane for 2 hours, and then slowly stirring until the resin is completely dissolved, wherein the mass ratio of the resin to the solvent is 100: 170;
s3, adding 0.5 part of chopped carbon fibers per 100 parts by mass, accelerating the stirring speed to 1000rpm, and stirring for 2 hours until the chopped carbon fibers are uniformly dispersed in the solution, wherein the diameter of the chopped carbon fibers is 6 microns, and the length of the chopped carbon fibers is 5 mm;
s4, pouring the stirred solution into a horizontal shallow groove to enable the solution to automatically level, wherein the depth of the solution is not more than 2 mm;
s5, taking out the blended resin sheet after the solvent naturally volatilizes to a certain degree, placing the blended resin sheet in an oven, and baking for 3 hours at the temperature of 120 ℃ to completely volatilize the solvent;
s6, cutting the baked blended resin sheet into fine particles, wherein the size of the fine particles is less than 5 mm;
s7, arranging the die on a flat hot press, coating a release agent, and paving 105% of the design weight;
s8, closing the die, heating to 250 ℃, pressurizing under the pressure of 3MPa, raising the temperature to 295 ℃ at the heating rate of 2 ℃/min, preserving heat for 30min, and naturally cooling to below 60 ℃ after the heat preservation is finished;
and S9, opening the mold, taking out the hub cover 1, removing burrs, and cleaning to remove the release agent.
Example 3
The utility model provides a be fit for interior cladding absorbing coating's combined material wheel hub lid, includes wheel hub lid 1, the front of wheel hub lid 1 is provided with installation boss 2 and a plurality of strengthening rib 3, and a plurality of strengthening ribs 3 are annular align to grid in the outside of installation boss 2, and one side of strengthening rib 3 is provided with air current mouth 4.
A composite hub cover suitable for being internally coated with wave-absorbing coating and a preparation method thereof are disclosed, which specifically comprise the following technical characteristics:
s1, weighing PSU and PEEK resin with a certain mass ratio of 88: 12;
s2, soaking the PSU/PEEK resin in a solvent of dichloromethane for 2 hours, and then slowly stirring until the resin is completely dissolved, wherein the mass ratio of the resin to the solvent is 100: 170;
s3, adding 0.5 part of chopped carbon fibers into 100 parts of the solution by mass ratio, accelerating the stirring speed to 1000rpm, and stirring for 2 hours until the chopped carbon fibers are uniformly dispersed in the solution, wherein the diameter of the chopped carbon fibers is 7 microns, and the length of the chopped carbon fibers is 6 mm;
s4, pouring the stirred solution into a horizontal shallow groove to enable the solution to automatically level, wherein the depth of the solution is not more than 2 mm;
s5, taking out the blended resin sheet after the solvent naturally volatilizes to a certain degree, placing the blended resin sheet in an oven, and baking for 3 hours at the temperature of 120 ℃ to completely volatilize the solvent;
s6, cutting the baked blended resin sheet into fine particles, wherein the size of the fine particles is less than 5 mm;
s7, arranging the die on a flat hot press, coating a release agent, and paving 105% of the design weight;
s8, closing the die, heating to 250 ℃, pressurizing at the pressure of 4MPa, raising the temperature to 295 ℃ at the heating rate of 2 ℃/min, preserving the temperature for 30min, and naturally cooling to below 60 ℃ after the heat preservation is finished;
and S9, opening the mold, taking out the hub cover 1, removing burrs, and cleaning to remove the release agent.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a composite wheel hub cover that ripples coating is inhaled in being fit for, includes wheel hub cover (1), its characterized in that, the front of wheel hub cover (1) is provided with installation boss (2) and a plurality of strengthening rib (3), and a plurality of strengthening rib (3) are annular align to grid in the outside of installation boss (2), and one side of strengthening rib (3) is provided with air current mouth (4).
2. The composite hub cover suitable for being internally coated with the wave-absorbing coating and the preparation method thereof according to claim 1 are characterized by comprising the following technical characteristics:
s1, weighing PSU and PEEK resin with certain mass;
s2, soaking the PSU/PEEK resin in a solvent of dichloromethane for 2 hours, and then slowly stirring until the resin is completely dissolved;
s3, adding 0.5 part of chopped carbon fibers per 100 parts by mass, accelerating the stirring speed to 1000rpm, and stirring for 2 hours until the chopped carbon fibers are uniformly dispersed in the solution;
s4, pouring the stirred solution into a horizontal shallow groove to enable the solution to automatically level;
s5, taking out the blended resin sheet after the solvent naturally volatilizes to a certain degree, placing the blended resin sheet in an oven, and baking for 3 hours at the temperature of 120 ℃ to completely volatilize the solvent;
s6, cutting the baked blended resin sheet into fine particles;
s7, arranging the die on a flat hot press, coating a release agent, and paving 105% of the design weight;
s8, closing the die, heating to 250 ℃, pressurizing, raising the temperature to 295 ℃ at the heating rate of 2 ℃/min, preserving the temperature for 30min, and naturally cooling to below 60 ℃ after the heat preservation is finished;
s9, opening the mould, taking out the hub cover (1), removing burrs, and cleaning to remove the release agent.
3. The composite hub cover suitable for being internally coated with the wave-absorbing coating and the preparation method thereof as claimed in claim 1, wherein in the S1, the mass ratio of PSU to PEEK resin is 88: 12.
4. The composite hub cover suitable for being internally coated with the wave-absorbing coating and the preparation method of the composite hub cover suitable for being internally coated with the wave-absorbing coating according to claim 1, wherein in the S2, the mass ratio of the resin to the solvent is 100: 170.
5. The composite hub cover suitable for being internally coated with the wave-absorbing coating and the preparation method thereof as claimed in claim 1, wherein in S3, the chopped carbon fibers have a diameter of 5-7 μm and a length of 4-6 mm.
6. The composite hub cover suitable for being internally coated with the wave-absorbing coating and the preparation method thereof as claimed in claim 1, wherein in the step S4, the depth of the solution is not more than 2 mm.
7. The composite hub cover suitable for being internally coated with the wave-absorbing coating and the preparation method thereof according to claim 1, wherein in the step S6, the size of fine particles is less than 5 mm.
8. The composite hub cover suitable for being internally coated with the wave-absorbing coating and the preparation method thereof as claimed in claim 1, wherein in the step S8, the pressurization pressure is 2-4 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210762770.4A CN115124839A (en) | 2022-06-29 | 2022-06-29 | Composite material hub cover suitable for being internally coated with wave-absorbing coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210762770.4A CN115124839A (en) | 2022-06-29 | 2022-06-29 | Composite material hub cover suitable for being internally coated with wave-absorbing coating and preparation method thereof |
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| CN101956729A (en) * | 2010-06-03 | 2011-01-26 | 深圳市傲星泰科技有限公司 | Fan |
| CN205615253U (en) * | 2016-05-14 | 2016-10-05 | 台州市椒江名辰电机科技有限公司 | Electric car wheel hub motor that makes an uproar falls |
| CN106891668A (en) * | 2017-03-22 | 2017-06-27 | 重庆市超群工业股份有限公司 | A kind of manufacture method of automotive hub and automotive hub |
| CN206856398U (en) * | 2017-03-28 | 2018-01-09 | 扬州伟烨轮毂有限公司 | A kind of reinforced radiating hub |
| CN208630261U (en) * | 2018-08-07 | 2019-03-22 | 扬州易达利机械科技有限公司 | A kind of locomotive wheel wheel hub capping |
| CN109591509A (en) * | 2018-12-19 | 2019-04-09 | 重庆智能工贸有限公司 | A kind of automobile wheel cover |
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| CN210000010U (en) * | 2018-12-28 | 2020-01-31 | 广州市金钟汽车零件股份有限公司 | hub center decorative cover |
| CN210652506U (en) * | 2019-07-17 | 2020-06-02 | 湖北宏玛达轮毂有限公司 | Embedded automobile hub |
| US20200354572A1 (en) * | 2019-05-07 | 2020-11-12 | Rutgers, The State University Of New Jersey | Economical multi-scale reinforced composites |
| CN112123997A (en) * | 2020-09-27 | 2020-12-25 | 中国人民解放军96901部队25分队 | Invisible tire decorative cover and preparation method thereof |
| CN212446931U (en) * | 2020-04-16 | 2021-02-02 | 泰州亚泰金属有限公司 | Wheel hub cover with vent hole |
| CN212555670U (en) * | 2020-06-17 | 2021-02-19 | 扬州爱信科技有限公司 | Automobile wheel hub protective housing |
| CN112477329A (en) * | 2020-11-24 | 2021-03-12 | 航天科工武汉磁电有限责任公司 | Trampable multi-spectrum invisible hub cover and preparation method thereof |
| CN214295387U (en) * | 2021-01-21 | 2021-09-28 | 芜湖桂成光电科技有限公司 | Anti-abrasion automobile hub |
| CN215944190U (en) * | 2021-09-03 | 2022-03-04 | 佛山市南海飞越压铸制造有限公司 | Reinforced hub cover easy to install shoe block |
-
2022
- 2022-06-29 CN CN202210762770.4A patent/CN115124839A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB611489A (en) * | 1946-01-08 | 1948-10-29 | Wingfoot Corp | Wheel fairing |
| CN101956729A (en) * | 2010-06-03 | 2011-01-26 | 深圳市傲星泰科技有限公司 | Fan |
| CN205615253U (en) * | 2016-05-14 | 2016-10-05 | 台州市椒江名辰电机科技有限公司 | Electric car wheel hub motor that makes an uproar falls |
| CN106891668A (en) * | 2017-03-22 | 2017-06-27 | 重庆市超群工业股份有限公司 | A kind of manufacture method of automotive hub and automotive hub |
| CN206856398U (en) * | 2017-03-28 | 2018-01-09 | 扬州伟烨轮毂有限公司 | A kind of reinforced radiating hub |
| CN109852059A (en) * | 2017-11-30 | 2019-06-07 | 蔡彬源 | A kind of polysulfone resin modified using polyether-ether-ketone |
| CN208630261U (en) * | 2018-08-07 | 2019-03-22 | 扬州易达利机械科技有限公司 | A kind of locomotive wheel wheel hub capping |
| CN109591509A (en) * | 2018-12-19 | 2019-04-09 | 重庆智能工贸有限公司 | A kind of automobile wheel cover |
| CN210000010U (en) * | 2018-12-28 | 2020-01-31 | 广州市金钟汽车零件股份有限公司 | hub center decorative cover |
| US20200354572A1 (en) * | 2019-05-07 | 2020-11-12 | Rutgers, The State University Of New Jersey | Economical multi-scale reinforced composites |
| CN210652506U (en) * | 2019-07-17 | 2020-06-02 | 湖北宏玛达轮毂有限公司 | Embedded automobile hub |
| CN212446931U (en) * | 2020-04-16 | 2021-02-02 | 泰州亚泰金属有限公司 | Wheel hub cover with vent hole |
| CN212555670U (en) * | 2020-06-17 | 2021-02-19 | 扬州爱信科技有限公司 | Automobile wheel hub protective housing |
| CN112123997A (en) * | 2020-09-27 | 2020-12-25 | 中国人民解放军96901部队25分队 | Invisible tire decorative cover and preparation method thereof |
| CN112477329A (en) * | 2020-11-24 | 2021-03-12 | 航天科工武汉磁电有限责任公司 | Trampable multi-spectrum invisible hub cover and preparation method thereof |
| CN214295387U (en) * | 2021-01-21 | 2021-09-28 | 芜湖桂成光电科技有限公司 | Anti-abrasion automobile hub |
| CN215944190U (en) * | 2021-09-03 | 2022-03-04 | 佛山市南海飞越压铸制造有限公司 | Reinforced hub cover easy to install shoe block |
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