CN114000139A - Anticorrosion technology of aluminum alloy hub - Google Patents
Anticorrosion technology of aluminum alloy hub Download PDFInfo
- Publication number
- CN114000139A CN114000139A CN202111652699.6A CN202111652699A CN114000139A CN 114000139 A CN114000139 A CN 114000139A CN 202111652699 A CN202111652699 A CN 202111652699A CN 114000139 A CN114000139 A CN 114000139A
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- powder
- alloy hub
- hub
- perovskite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/12—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on oxides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention relates to an anticorrosion process of an aluminum alloy hub, which comprises the following steps of S1, surface treatment, heating the cleaned aluminum alloy hub to 400-600 ℃, and spraying first mixed powder on the surface of the aluminum alloy hub to form a boron nitride micro-nano column growing on the surface of the aluminum alloy hub; s2, spraying an anticorrosive layer, keeping the temperature of the aluminum alloy hub of the boron nitride micro-nano column formed after the treatment in the step S1 at 400-. The aluminum alloy hub treated by the method has good corrosion resistance.
Description
Technical Field
The invention relates to a hub, in particular to an anticorrosion process of the hub.
Background
The aluminum alloy has low density, high strength similar to or superior to that of high-quality steel, good plasticity, excellent electric conductivity, heat conductivity and corrosion resistance, is widely used in industry, and is second to steel in use amount.
In the automobile industry, the weight of the wheel can be reduced by adopting the automobile wheel hub made of aluminum or aluminum alloy, but the corrosion resistance is poor, which is always a main factor for preventing the further development and use of the wheel hub, particularly in humid atmosphere, fresh water, seawater, most of organic acids and salts thereof, inorganic acids and salts thereof, aluminum and aluminum alloy can be damaged by stronger corrosion, the popularization and application of the aluminum or aluminum alloy are greatly limited, and the service life of the automobile wheel hub is also seriously influenced.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a method for effectively realizing corrosion prevention by generating a boron nitride micro-nano column on the surface of an aluminum alloy hub, infiltrating and connecting the boron nitride micro-nano column with a second mixed powder containing modified perovskite through hot melting, and forming an oxide layer protective film on the surface of the aluminum alloy hub through heating.
The technical scheme of the invention is as follows:
an anticorrosion process of an aluminum alloy hub is characterized in that:
s1, performing surface treatment, namely heating the cleaned aluminum alloy hub to 400-600 ℃, and spraying first mixed powder on the surface of the aluminum alloy hub to form a boron nitride micro-nano column growing on the surface of the aluminum alloy hub;
s2, spraying an anticorrosive layer, keeping the temperature of the aluminum alloy hub of the boron nitride micro-nano column formed after the treatment in the step S1 at 400-.
Further, the first mixed powder comprises, by weight, 30-60 parts of boron oxide powder, 15-30 parts of metal aluminum powder, 5-15 parts of glass fiber yarns and 20-35 parts of perovskite.
Further, mixing boron oxide powder, metal aluminum powder, glass fiber yarns and perovskite, and then putting the mixture into a spherical grinder for grinding to obtain first mixed powder of particles with the particle size of 2-3um, wherein the particles are wrapped by the glass fiber yarns with the diameter of 5-20 mu m.
Further, the step S1 is specifically to slowly heat the aluminum alloy hub to 400-600 ℃ under the protection of nitrogen; and then spraying the first mixed powder to the surface of the aluminum alloy hub through high-speed ammonia gas pneumatic injection equipment, and simultaneously carrying out electromagnetic induction heating on the surface of the aluminum alloy hub to ensure that the surface of the aluminum alloy hub is heated to 1000-1200 ℃ and lasts for 3-5 seconds.
Further, the second mixed powder comprises, by weight, 30-60 parts of modified perovskite powder, 15-30 parts of nickel powder, 30-45 parts of pearl powder and 10-15 parts of carbon fiber reinforced resin.
Further, the modified calcium-titanium mineral powder, the nickel powder, the pearl powder and the carbon fiber reinforced resin are put into a spherical grinder to be ground, and second mixed powder with the particle size of 2-3um is obtained.
Further, the step S2 is specifically to slowly heat the aluminum alloy hub to 400-600 ℃ under the protection of nitrogen; then spraying the second mixed powder onto the aluminum alloy hub through a high-pressure sprayer under the protection of nitrogen atmosphere, and simultaneously carrying out electromagnetic induction heating on the surface of the aluminum alloy hub to ensure that the surface of the aluminum alloy hub is heated to 1000-1200 ℃ and only lasts for 3-5 seconds; then the surface of the aluminum alloy hub is heated by electromagnetic induction to be heated to 1200-1400 ℃ for only 3-5 seconds, and air is introduced to the surface of the aluminum alloy hub.
Further, the preparation method of the modified perovskite powder comprises the steps of mixing perovskite powder, silicon tetrachloride powder and cationic beta-cyclodextrin suspension according to the mass ratio of 1:1:10, heating to 60-80 ℃, stirring for 30-45min through a high-speed stirrer, filtering after reaction to obtain filter residue, cleaning the filter residue for 3-5 times, and grinding to obtain the modified perovskite powder.
Further, the method also comprises the following steps:
s3, heat treatment, namely, placing the aluminum alloy wheel hub into a heat treatment furnace, heat treating for 30-35 minutes at the temperature of 550-600 ℃, then heat treating for 30-35 minutes at the temperature of 400-500 ℃, heat treating for 30-35 minutes at the temperature of 300-350 ℃, and then cooling to the normal temperature.
And S4, drawing the surface, drawing the aluminum alloy hub by a drawing machine, and drawing out the required lines.
And S5, coating a film on the surface, and spraying finishing paint on the wire drawing part obtained in the step S4 to obtain the aluminum alloy hub with the surface subjected to the double-color wire drawing and film coating.
Further, in the steps S1 and S2, the aluminum alloy hub is under 3-5 standard atmospheric pressure environments.
By the scheme, the invention at least has the following advantages:
when the columnar boron nitride nano material is formed on the surface of the aluminum alloy hub, the aluminum alloy hub can be used as a catalyst, and an additional metal matrix is not needed to be used as a catalytic material;
the aluminum powder in the first mixed powder can generate an oxidation reaction with the perovskite, and the glass fiber yarns can tightly connect other components to the periphery of the boron nitride nano material after hot melting to form a stable connecting surface;
the process environment is in a high-pressure environment, and the powder is further pressed into the aluminum alloy hub to be tightly attached by high atmospheric pressure in cooperation with the high-speed sprayed powder;
according to the invention, the perovskite is modified, and the structural strength and the wear resistance of the perovskite powder are enhanced after the perovskite and the perovskite are combined.
The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
And (2) surface treatment, namely heating the cleaned aluminum alloy hub to 400 ℃, then placing the aluminum alloy hub in a nitrogen environment with 3 standard atmospheric pressures, spraying the first mixed powder to the surface of the aluminum alloy hub through high-speed ammonia gas pneumatic injection equipment, and simultaneously heating the surface of the aluminum alloy hub by electromagnetic induction to heat the surface of the aluminum alloy hub to 1000 ℃ for only 3 seconds. In the step, the aluminum alloy hub is heated to a high temperature (lower than the melting point) and is in the protective atmosphere of nitrogen, so that the surface of the aluminum alloy hub can be prevented from generating oxidation reaction to form an oxide film, and the oxide film is not beneficial to the development of the subsequent process after being formed.
The first mixed powder comprises, by weight, 30 parts of boron oxide powder, 15 parts of metal aluminum powder, 5 parts of glass fiber yarns and 20 parts of perovskite. The specific preparation method of the first mixed powder comprises the steps of mixing the boron oxide powder, the metal aluminum powder, the glass fiber yarns and the perovskite, then putting the mixture into a spherical grinder for grinding to obtain the first mixed powder of glass fiber yarns with the diameter of 5 mu m and the particles with the particle size of 2 mu m, grinding, removing other components except the glass fiber yarns to form powder, and coating the powder on the glass fiber yarns to form the fine powder mixed material.
The first mixed powder contains boron oxide powder which can react with introduced ammonia under the action of the aluminum alloy hub serving as a catalyst to grow and form a columnar boron nitride nano material permeating the surface of the aluminum alloy hub, when the temperature is raised to 1000 ℃, aluminum powder is melted, perovskite is a ceramic oxide, the A or B site in the perovskite is replaced or partially replaced by aluminum metal ions to synthesize a composite oxide, simultaneously, because the glass fiber yarns can reach a melting point momentarily at the moment of temperature rise, each component can be closely melted and connected to the periphery of the columnar boron nitride nano material, when the columnar boron nitride nano material serves as a composite material additive, more connecting interfaces can be generated, the binding force between the additive and a matrix is increased, the performance of the composite material is integrally improved, and meanwhile, the columnar boron nitride nano material can be closely connected to the surface of the aluminum alloy hub, the added perovskite can be combined with a subsequent modified perovskite.
Spraying a corrosion-resistant layer, keeping the temperature of the aluminum alloy hub with the boron nitride micro-nano column formed after the treatment of the step S1 to be 400 ℃, then putting the aluminum alloy hub into a nitrogen environment with 3 standard atmospheric pressures, then spraying second mixed powder onto the aluminum alloy hub through a high-pressure sprayer under the protection of the nitrogen atmosphere, and simultaneously heating the surface of the aluminum alloy hub to 1000 ℃ by electromagnetic induction and only lasting for 3 seconds; then, the surface of the aluminum alloy hub is heated by electromagnetic induction to be heated to 1200 ℃ for only 3 seconds, and air is introduced to the surface of the aluminum alloy hub.
The second mixed powder comprises, by weight, 30 parts of modified perovskite powder, 15 parts of nickel powder, 30 parts of pearl powder and 10 parts of carbon fiber reinforced resin, and the specific preparation method comprises the step of putting the modified perovskite powder, the nickel powder, the pearl powder and the carbon fiber reinforced resin into a spherical grinder for grinding to obtain the second mixed powder with the particle size of 2 microns.
The preparation method of the modified perovskite powder comprises the steps of mixing perovskite powder, silicon tetrachloride powder and cationic beta-cyclodextrin suspension according to the mass ratio of 1:1:10, heating to 60 ℃, stirring for 30min through a high-speed stirrer, filtering after reaction to obtain filter residue, cleaning the filter residue for 3 times, and grinding to obtain the modified perovskite powder. In the modified perovskite powder, silicon tetrachloride powder and a cationic beta-cyclodextrin suspension can generate silicon dioxide when being heated, the cationic beta-cyclodextrin can generate cation repulsion, the agglomeration between the silicon dioxide can be reduced after the silicon dioxide is wrapped, the silicon dioxide can be completely dispersed into the perovskite powder, meanwhile, the problem of low recombination rate of electrons and holes in the structure of the perovskite can be solved by matching the cationic beta-cyclodextrin with the silicon dioxide, the structural strength and the wear resistance of the perovskite powder are enhanced after the combination of the cationic beta-cyclodextrin and the silicon dioxide, and the modification of the perovskite powder is realized to obtain the modified perovskite powder.
In the second mixed powder, after the mixed powder of the modified perovskite powder, the nickel powder, the pearl powder and the carbon fiber reinforced resin is sprayed on the surface layer formed by the first mixed powder at a high speed, the nickel powder and the carbon fiber reinforced resin can be hot-melted as the temperature is raised to 1000 ℃ and lasts for only 3 seconds, so that the modified perovskite powder and the pearl powder are wrapped and simultaneously hot-melted on the columnar boron nitride nano material, and an anticorrosive layer is formed. When the temperature is raised to 1200 ℃ for the second time and lasts for only 3 seconds, oxygen in the air and other easily-oxidized components of the anticorrosive coating can be subjected to oxidation reaction due to the introduction of the air. The nickel powder and the carbon fiber reinforced resin are hot-melted, so that high structural strength is provided, and the nickel powder and the carbon fiber reinforced resin can further penetrate into the columnar boron nitride nano material to form a stable anticorrosive layer structure. The addition of the pearl powder can improve the aesthetic degree of the aluminum alloy hub, and meanwhile, the pearl powder can be mutually infiltrated with the modified perovskite after the nickel powder and the carbon fiber reinforced resin are melted, so that a more stable structure is formed.
The method further comprises a heat treatment step, wherein the aluminum alloy wheel hub is placed into a heat treatment furnace, heat treatment is carried out for 30 minutes at the temperature of 550 ℃, then heat treatment is carried out for 30 minutes at the temperature of 400 ℃, heat treatment is carried out for 30 minutes at the temperature of 300 ℃, then cooling is carried out to the normal temperature, a three-stage annealing process is adopted, the structural performance of the aluminum alloy wheel hub is further enhanced, and meanwhile, an anticorrosive coating on the surface is further reinforced.
And (3) surface wire drawing, wherein wire drawing is carried out on the aluminum alloy hub through a wire drawing machine, required lines are drawn out, surface coating is carried out, finish paint is sprayed on the wire drawing position, and the aluminum alloy hub with the surface subjected to double-color wire drawing coating is obtained.
Example 2
And (2) surface treatment, namely heating the cleaned aluminum alloy hub to 500 ℃, then placing the aluminum alloy hub in a nitrogen environment with 4 standard atmospheric pressures, spraying the first mixed powder to the surface of the aluminum alloy hub through high-speed ammonia gas pneumatic injection equipment, and simultaneously heating the surface of the aluminum alloy hub by electromagnetic induction to heat the surface of the aluminum alloy hub to 1100 ℃ for only 4 seconds. In the step, the aluminum alloy hub is heated to a high temperature (lower than the melting point) and is in the protective atmosphere of nitrogen, so that the surface of the aluminum alloy hub can be prevented from generating oxidation reaction to form an oxide film, and the oxide film is not beneficial to the development of the subsequent process after being formed.
The first mixed powder comprises 45 parts by weight of boron oxide powder, 20 parts by weight of metal aluminum powder, 10 parts by weight of glass fiber yarns and 25 parts by weight of perovskite. The specific preparation method of the first mixed powder comprises the steps of mixing the boron oxide powder, the metal aluminum powder, the glass fiber yarns and the perovskite, then putting the mixture into a spherical grinder for grinding to obtain the first mixed powder of glass fiber yarns with the diameter of 10 mu m and particles with the particle size of 2.5 mu m, grinding, removing other components except the glass fiber yarns to form powder, and coating the powder on the glass fiber yarns to form the fine powder mixed material.
The first mixed powder contains boron oxide powder which can react with introduced ammonia under the action of the aluminum alloy hub serving as a catalyst, the columnar boron nitride nanometer material which is infiltrated into the surface of the aluminum alloy wheel hub is formed on the surface of the aluminum alloy wheel hub in a growing way, when the temperature is raised to 1100 ℃, aluminum powder is melted, perovskite is a ceramic oxide, A or B site in the perovskite can be substituted by aluminum metal ion or partially substituted to synthesize composite oxide, meanwhile, because the glass fiber yarns can reach the melting point momentarily when the temperature is raised, all components can be closely connected to the periphery of the columnar boron nitride nano material in a hot melting way, when the columnar boron nitride nano material is used as a composite material additive, the composite material can generate more connecting interfaces, increase the binding force between the additives and the substrate, integrally improve the performance of the composite material, and can be tightly connected to the surface of the aluminum alloy hub.
Spraying a corrosion-resistant layer, keeping the temperature of the aluminum alloy hub with the boron nitride micro-nano column formed after the treatment of the step S1 to be 500 ℃, then putting the aluminum alloy hub into a nitrogen environment with 4 standard atmospheric pressures, then spraying second mixed powder onto the aluminum alloy hub through a high-pressure sprayer under the protection of the nitrogen atmosphere, and simultaneously heating the surface of the aluminum alloy hub to 1100 ℃ through electromagnetic induction and only lasting for 4 seconds; then the surface of the aluminum alloy hub is heated by electromagnetic induction to 1300 ℃ for only 4 seconds, and air is introduced to the surface of the aluminum alloy hub.
The second mixed powder comprises 40 parts of modified perovskite powder, 20 parts of nickel powder, 35 parts of pearl powder and 12 parts of carbon fiber reinforced resin according to parts by weight, and the specific preparation method comprises the step of putting the modified perovskite powder, the nickel powder, the pearl powder and the carbon fiber reinforced resin into a spherical grinder for grinding to obtain the second mixed powder with the particle size of 2.5 microns.
The preparation method of the modified perovskite powder comprises the steps of mixing perovskite powder, silicon tetrachloride powder and cationic beta-cyclodextrin suspension according to the mass ratio of 1:1:10, heating to 70 ℃, stirring for 35min through a high-speed stirrer, filtering after reaction to obtain filter residue, cleaning the filter residue for 3-5 times, and grinding to obtain the modified perovskite powder. In the modified perovskite powder, silicon tetrachloride powder and a cationic beta-cyclodextrin suspension can generate silicon dioxide when being heated, the cationic beta-cyclodextrin can generate cation repulsion, the agglomeration between the silicon dioxide can be reduced after the silicon dioxide is wrapped, the silicon dioxide can be completely dispersed into the perovskite powder, meanwhile, the problem of low recombination rate of electrons and holes in the structure of the perovskite can be solved by matching the cationic beta-cyclodextrin with the silicon dioxide, the structural strength and the wear resistance of the perovskite powder are enhanced after the combination of the cationic beta-cyclodextrin and the silicon dioxide, and the modification of the perovskite powder is realized to obtain the modified perovskite powder.
In the second mixed powder, after the mixed powder of the modified perovskite powder, the nickel powder, the pearl powder and the carbon fiber reinforced resin is sprayed on the surface layer formed by the first mixed powder at a high speed, the nickel powder and the carbon fiber reinforced resin can be hot-melted as the temperature is raised to 1100 ℃ and lasts for only 4 seconds, so that the modified perovskite powder and the pearl powder are wrapped and simultaneously hot-melted on the columnar boron nitride nano material, and an anticorrosive layer is formed. When the temperature is raised to 1300 ℃ for the second time and lasts for only 4 seconds, oxygen in the air and other easily-oxidized components of the anticorrosive coating can be subjected to oxidation reaction due to the introduction of the air. The nickel powder and the carbon fiber reinforced resin are hot-melted, so that high structural strength is provided, and the nickel powder and the carbon fiber reinforced resin can further penetrate into the columnar boron nitride nano material to form a stable anticorrosive layer structure. The addition of the pearl powder can improve the aesthetic degree of the aluminum alloy hub, and meanwhile, the pearl powder can be mutually infiltrated with the modified perovskite after the nickel powder and the carbon fiber reinforced resin are melted, so that a more stable structure is formed.
The method further comprises heat treatment, namely placing the aluminum alloy wheel hub into a heat treatment furnace, carrying out heat treatment at 580 ℃ for 32 minutes, then carrying out heat treatment at 450 ℃ for 32 minutes, carrying out heat treatment at 320 ℃ for 32 minutes, then cooling to normal temperature, adopting a three-stage annealing process to further strengthen the structural performance of the aluminum alloy wheel hub, and simultaneously further strengthening the anticorrosive coating on the surface.
And (3) surface wire drawing, wherein wire drawing is carried out on the aluminum alloy hub through a wire drawing machine, required lines are drawn out, surface coating is carried out, finish paint is sprayed on the wire drawing position, and the aluminum alloy hub with the surface subjected to double-color wire drawing coating is obtained.
Example 3
And (2) surface treatment, namely heating the cleaned aluminum alloy hub to 600 ℃, then placing the aluminum alloy hub in a nitrogen environment with 5 standard atmospheric pressures, spraying the first mixed powder to the surface of the aluminum alloy hub through high-speed ammonia gas pneumatic injection equipment, and simultaneously heating the surface of the aluminum alloy hub by electromagnetic induction to heat the surface of the aluminum alloy hub to 1200 ℃ for only 5 seconds. In the step, the aluminum alloy hub is heated to a high temperature (lower than the melting point) and is in the protective atmosphere of nitrogen, so that the surface of the aluminum alloy hub can be prevented from generating oxidation reaction to form an oxide film, and the oxide film is not beneficial to the development of the subsequent process after being formed.
The first mixed powder comprises, by weight, 60 parts of boron oxide powder, 30 parts of metal aluminum powder, 15 parts of glass fiber yarns and 35 parts of perovskite. The specific preparation method of the first mixed powder comprises the steps of mixing the boron oxide powder, the metal aluminum powder, the glass fiber yarns and the perovskite, then putting the mixture into a spherical grinder for grinding to obtain the first mixed powder with the diameter of 20 mu m and the particle diameter of 3 mu m particles coated by the glass fiber yarns, grinding, removing other components except the glass fiber yarns to form powder, and coating the powder on the glass fiber yarns to form the fine powder mixed material.
The first mixed powder contains boron oxide powder which can react with introduced ammonia under the action of the aluminum alloy hub serving as a catalyst, the columnar boron nitride nanometer material which is infiltrated into the surface of the aluminum alloy wheel hub is formed on the surface of the aluminum alloy wheel hub in a growing way, when the temperature is raised to 1200 ℃, the aluminum powder is melted, the perovskite is a ceramic oxide, the A or B site in the perovskite can be substituted by aluminum metal ions or partially substituted to synthesize a composite oxide, meanwhile, because the glass fiber yarns can reach the melting point momentarily when the temperature is raised, all components can be closely connected to the periphery of the columnar boron nitride nano material in a hot melting way, when the columnar boron nitride nano material is used as a composite material additive, the composite material can generate more connecting interfaces, increase the binding force between the additives and the substrate, integrally improve the performance of the composite material, and can be tightly connected to the surface of the aluminum alloy hub.
Spraying a corrosion-resistant layer, keeping the temperature of the aluminum alloy hub with the boron nitride micro-nano column formed after the treatment of the step S1 at 600 ℃, then putting the aluminum alloy hub into a nitrogen environment with 5 standard atmospheric pressures, then spraying second mixed powder onto the aluminum alloy hub through a high-pressure sprayer under the protection of the nitrogen atmosphere, and simultaneously heating the surface of the aluminum alloy hub to 1200 ℃ through electromagnetic induction and only lasting for 5 seconds; then the surface of the aluminum alloy wheel hub is heated by electromagnetic induction to 1400 ℃ for only 5 seconds, and air is introduced to the surface of the aluminum alloy wheel hub.
The second mixed powder comprises 60 parts of modified perovskite powder, 30 parts of nickel powder, 45 parts of pearl powder and 15 parts of carbon fiber reinforced resin according to parts by weight, and the specific preparation method comprises the step of putting the modified perovskite powder, the nickel powder, the pearl powder and the carbon fiber reinforced resin into a spherical grinder for grinding to obtain the second mixed powder with the particle size of 3 microns.
The preparation method of the modified perovskite powder comprises the steps of mixing perovskite powder, silicon tetrachloride powder and cationic beta-cyclodextrin suspension according to the mass ratio of 1:1:10, heating to 80 ℃, stirring for 45min through a high-speed stirrer, filtering after reaction to obtain filter residue, cleaning the filter residue for 5 times, and grinding to obtain the modified perovskite powder. In the modified perovskite powder, silicon tetrachloride powder and a cationic beta-cyclodextrin suspension can generate silicon dioxide when being heated, the cationic beta-cyclodextrin can generate cation repulsion, the agglomeration between the silicon dioxide can be reduced after the silicon dioxide is wrapped, the silicon dioxide can be completely dispersed into the perovskite powder, meanwhile, the problem of low recombination rate of electrons and holes in the structure of the perovskite can be solved by matching the cationic beta-cyclodextrin with the silicon dioxide, the structural strength and the wear resistance of the perovskite powder are enhanced after the combination of the cationic beta-cyclodextrin and the silicon dioxide, and the modification of the perovskite powder is realized to obtain the modified perovskite powder.
In the second mixed powder, after the mixed powder of the modified perovskite powder, the nickel powder, the pearl powder and the carbon fiber reinforced resin is sprayed on the surface layer formed by the first mixed powder at a high speed, the nickel powder and the carbon fiber reinforced resin can be hot-melted as the temperature is raised to 1200 ℃ and lasts for only 5 seconds, so that the modified perovskite powder and the pearl powder are wrapped and simultaneously hot-melted on the columnar boron nitride nano material, and an anticorrosive layer is formed. When the temperature is raised to 1400 ℃ for the second time and lasts for only 5 seconds, oxygen in the air and other easily-oxidized components of the anticorrosive coating can be subjected to oxidation reaction due to the introduction of the air. The nickel powder and the carbon fiber reinforced resin are hot-melted, so that high structural strength is provided, and the nickel powder and the carbon fiber reinforced resin can further penetrate into the columnar boron nitride nano material to form a stable anticorrosive layer structure. The addition of the pearl powder can improve the aesthetic degree of the aluminum alloy hub, and meanwhile, the pearl powder can be mutually infiltrated with the modified perovskite after the nickel powder and the carbon fiber reinforced resin are melted, so that a more stable structure is formed.
The method further comprises a heat treatment step, wherein the aluminum alloy wheel hub is placed into a heat treatment furnace, the heat treatment is carried out for 35 minutes at the temperature of 600 ℃, then the heat treatment is carried out for 35 minutes at the temperature of 500 ℃, the heat treatment is carried out for 35 minutes at the temperature of 350 ℃, then the cooling is carried out to the normal temperature, a three-stage annealing process is adopted, the structural performance of the aluminum alloy wheel hub is further enhanced, and meanwhile, the anticorrosive coating on the surface is further reinforced.
And (3) surface wire drawing, wherein wire drawing is carried out on the aluminum alloy hub through a wire drawing machine, required lines are drawn out, surface coating is carried out, finish paint is sprayed on the wire drawing position, and the aluminum alloy hub with the surface subjected to double-color wire drawing coating is obtained.
The aluminum alloy wheel hubs obtained in examples 1 to 3 were subjected to a grid cutting test under a dry condition and a boiling water condition, respectively, for 800h of neutral salt spray corrosion resistance, without any shedding, while still maintaining good adhesion, with an adhesion rating of 0.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The corrosion prevention process of the aluminum alloy hub is characterized by comprising the following steps of:
s1, performing surface treatment, namely heating the cleaned aluminum alloy hub to 400-600 ℃, and spraying first mixed powder on the surface of the aluminum alloy hub to form a boron nitride micro-nano column growing on the surface of the aluminum alloy hub;
s2, spraying an anticorrosive layer, keeping the temperature of the aluminum alloy hub of the boron nitride micro-nano column formed after the treatment in the step S1 at 400-.
2. The corrosion prevention process of the aluminum alloy hub as recited in claim 1, characterized in that: the first mixed powder comprises, by weight, 30-60 parts of boron oxide powder, 15-30 parts of metal aluminum powder, 5-15 parts of glass fiber yarns and 20-35 parts of perovskite.
3. The corrosion prevention process of the aluminum alloy hub as recited in claim 2, characterized in that: mixing boron oxide powder, metal aluminum powder, glass fiber yarns and perovskite, and then putting the mixture into a spherical grinder for grinding to obtain first mixed powder of particles with the particle size of 2-3um, wherein the particles are wrapped by the glass fiber yarns with the diameter of 5-20 mu m.
4. The corrosion prevention process for the aluminum alloy hub as claimed in claim 3, wherein the step S1 is to heat the aluminum alloy hub slowly to 400-600 ℃ under the protection of nitrogen; and then spraying the first mixed powder to the surface of the aluminum alloy hub through high-speed ammonia gas pneumatic injection equipment, and simultaneously carrying out electromagnetic induction heating on the surface of the aluminum alloy hub to ensure that the surface of the aluminum alloy hub is heated to 1000-1200 ℃ and lasts for 3-5 seconds.
5. The corrosion prevention process of the aluminum alloy hub as recited in claim 1, characterized in that: the second mixed powder comprises, by weight, 30-60 parts of modified perovskite powder, 15-30 parts of nickel powder, 30-45 parts of pearl powder and 10-15 parts of carbon fiber reinforced resin.
6. The corrosion prevention process of the aluminum alloy hub as recited in claim 5, characterized in that: and (3) putting the modified calcium-titanium ore powder, the nickel powder, the pearl powder and the carbon fiber reinforced resin into a spherical grinder for grinding to obtain second mixed powder with the particle size of 2-3 um.
7. The corrosion prevention process of the aluminum alloy hub as recited in claim 6, characterized in that: step S2 is specifically that the aluminum alloy hub is slowly heated to 400-600 ℃ under the protection of nitrogen; then spraying the second mixed powder onto the aluminum alloy hub through a high-pressure sprayer under the protection of nitrogen atmosphere, and simultaneously carrying out electromagnetic induction heating on the surface of the aluminum alloy hub to ensure that the surface of the aluminum alloy hub is heated to 1000-1200 ℃ and only lasts for 3-5 seconds; then the surface of the aluminum alloy hub is heated by electromagnetic induction to be heated to 1200-1400 ℃ for only 3-5 seconds, and air is introduced to the surface of the aluminum alloy hub.
8. The corrosion prevention process of the aluminum alloy hub as recited in claim 7, wherein: the preparation method of the modified perovskite powder comprises the steps of mixing perovskite powder, silicon tetrachloride powder and cationic beta-cyclodextrin suspension according to the mass ratio of 1:1:10, heating to 60-80 ℃, stirring for 30-45min through a high-speed stirrer, filtering after reaction to obtain filter residue, cleaning the filter residue for 3-5 times, and grinding to obtain the modified perovskite powder.
9. The process of claim 1, further comprising:
s3, heat treatment, namely placing the aluminum alloy wheel hub into a heat treatment furnace, carrying out heat treatment at the temperature of 550-600 ℃ for 30-35 minutes, then carrying out heat treatment at the temperature of 400-500 ℃ for 30-35 minutes, carrying out heat treatment at the temperature of 300-350 ℃ for 30-35 minutes, and then cooling to the normal temperature;
s4, drawing the surface, namely drawing the aluminum alloy hub by a drawing machine to draw out the required lines;
and S5, coating a film on the surface, and spraying finishing paint on the wire drawing part obtained in the step S4 to obtain the aluminum alloy hub with the surface subjected to the double-color wire drawing and film coating.
10. The process of claim 1, wherein the aluminum alloy hub is under 3-5 standard atmospheric pressure conditions in each of the steps S1 and S2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111652699.6A CN114000139B (en) | 2021-12-31 | 2021-12-31 | Anticorrosion technology of aluminum alloy hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111652699.6A CN114000139B (en) | 2021-12-31 | 2021-12-31 | Anticorrosion technology of aluminum alloy hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114000139A true CN114000139A (en) | 2022-02-01 |
| CN114000139B CN114000139B (en) | 2022-03-18 |
Family
ID=79932343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111652699.6A Active CN114000139B (en) | 2021-12-31 | 2021-12-31 | Anticorrosion technology of aluminum alloy hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114000139B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292534A (en) * | 2021-12-31 | 2022-04-08 | 常州市业峰汽车部件有限公司 | Surface coating process for low-pressure cast hub |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902142A (en) * | 1958-06-16 | 1962-07-25 | Nat Res Dev | Process for depositing a metallised surface on an article |
| FR2234691A1 (en) * | 1973-06-22 | 1975-01-17 | Bendix Corp | |
| MX9102816A (en) * | 1991-01-07 | 1992-07-01 | Westinghouse Electric Corp | IMPROVEMENTS IN CORROSION RESISTANT MAGNESIUM TITANATE COATINGS FOR GAS TURBINES. |
| JPH06346228A (en) * | 1993-06-15 | 1994-12-20 | Matsushita Electric Ind Co Ltd | Method for producing dielectric thin film and device therefor |
| JPH0849061A (en) * | 1994-06-02 | 1996-02-20 | Matsushita Electric Ind Co Ltd | Production of dielectric thin film and device therefor |
| US6402502B1 (en) * | 2000-08-04 | 2002-06-11 | Richter Precision, Inc. | Thermally conductive hub bushing |
| US20030154658A1 (en) * | 2002-02-15 | 2003-08-21 | Salmon Stuart C. | Grinding wheel with titanium aluminum nitride and hard lubricant coatings |
| US20110135947A1 (en) * | 2009-12-04 | 2011-06-09 | Thomas Berndt | Masking Material, Masking Layer, Process for Masking a Substrate and Process for Coating a Substrate |
| CN107262349A (en) * | 2017-07-04 | 2017-10-20 | 蚌埠市福沃特车轮制造科技有限公司 | Powder injection process in the production process of reflectal wheel hub |
| CN107262350A (en) * | 2017-07-04 | 2017-10-20 | 蚌埠市福沃特车轮制造科技有限公司 | Powder injection process in the production process of common aluminum alloy wheel hub |
| CN109337557A (en) * | 2018-09-29 | 2019-02-15 | 安徽兆拓新能源科技有限公司 | A kind of preparation method of high-effect solar panels surface coating |
| EP3539679A1 (en) * | 2018-03-15 | 2019-09-18 | Citic Dicastal Co., Ltd. | Aging resistance coating film for hub and method for forming protective film |
| US10608137B1 (en) * | 2019-07-17 | 2020-03-31 | Alfaisal University | Method of making a perovskite solar cell using a nanocomposite |
-
2021
- 2021-12-31 CN CN202111652699.6A patent/CN114000139B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902142A (en) * | 1958-06-16 | 1962-07-25 | Nat Res Dev | Process for depositing a metallised surface on an article |
| FR2234691A1 (en) * | 1973-06-22 | 1975-01-17 | Bendix Corp | |
| MX9102816A (en) * | 1991-01-07 | 1992-07-01 | Westinghouse Electric Corp | IMPROVEMENTS IN CORROSION RESISTANT MAGNESIUM TITANATE COATINGS FOR GAS TURBINES. |
| JPH06346228A (en) * | 1993-06-15 | 1994-12-20 | Matsushita Electric Ind Co Ltd | Method for producing dielectric thin film and device therefor |
| JPH0849061A (en) * | 1994-06-02 | 1996-02-20 | Matsushita Electric Ind Co Ltd | Production of dielectric thin film and device therefor |
| US6402502B1 (en) * | 2000-08-04 | 2002-06-11 | Richter Precision, Inc. | Thermally conductive hub bushing |
| US20030154658A1 (en) * | 2002-02-15 | 2003-08-21 | Salmon Stuart C. | Grinding wheel with titanium aluminum nitride and hard lubricant coatings |
| US20110135947A1 (en) * | 2009-12-04 | 2011-06-09 | Thomas Berndt | Masking Material, Masking Layer, Process for Masking a Substrate and Process for Coating a Substrate |
| CN107262349A (en) * | 2017-07-04 | 2017-10-20 | 蚌埠市福沃特车轮制造科技有限公司 | Powder injection process in the production process of reflectal wheel hub |
| CN107262350A (en) * | 2017-07-04 | 2017-10-20 | 蚌埠市福沃特车轮制造科技有限公司 | Powder injection process in the production process of common aluminum alloy wheel hub |
| EP3539679A1 (en) * | 2018-03-15 | 2019-09-18 | Citic Dicastal Co., Ltd. | Aging resistance coating film for hub and method for forming protective film |
| CN109337557A (en) * | 2018-09-29 | 2019-02-15 | 安徽兆拓新能源科技有限公司 | A kind of preparation method of high-effect solar panels surface coating |
| US10608137B1 (en) * | 2019-07-17 | 2020-03-31 | Alfaisal University | Method of making a perovskite solar cell using a nanocomposite |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292534A (en) * | 2021-12-31 | 2022-04-08 | 常州市业峰汽车部件有限公司 | Surface coating process for low-pressure cast hub |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114000139B (en) | 2022-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104193288B (en) | The preparation of a kind of aqueous ceramic anticorrosive paint and painting method | |
| CN114000139B (en) | Anticorrosion technology of aluminum alloy hub | |
| CN112920629B (en) | Graphene non-stick coating and preparation method thereof | |
| CN113337184B (en) | Anticorrosive paint and preparation method thereof | |
| CN111393992B (en) | Super-hydrophobic coating and preparation method thereof | |
| CN112920687B (en) | Single-component flake type epoxy zinc-rich anti-corrosive primer and preparation method thereof | |
| CN115651537A (en) | High-temperature-resistant anticorrosive paint and preparation method and application thereof | |
| CN117089236A (en) | Preparation method of water-based nano metal ink | |
| CN115725209B (en) | Nano composite coating and preparation method thereof | |
| CN106318197B (en) | Improved heat-resisting, corrosion resistant hot melt penetrates coating and preparation method thereof | |
| CN110042653B (en) | Carbon fiber with multi-scale SiC-SiOC ceramic coating on surface and preparation method thereof | |
| CN114940852B (en) | Solvent-free epoxy coating and preparation method thereof | |
| CN104878588A (en) | New method of silicon nanotube/ wire modified fiber surface | |
| CN114292534A (en) | Surface coating process for low-pressure cast hub | |
| CN114574043A (en) | Nano/polyethylene wax composite modified graphene coating and preparation method thereof | |
| CN105131658A (en) | Preparation method for high-hardness water paint applied to vacuum-cup surface | |
| CN112680011A (en) | Preparation method of organic-inorganic hybrid anticorrosive paint | |
| CN109055887A (en) | A kind of plasma surface coating process | |
| CN111500126A (en) | Composite coating with hydrophobic property and wear resistance, preparation method and application | |
| CN115627121B (en) | Ablation-resistant heat-insulating silicone resin coating and preparation method thereof | |
| CN110241375A (en) | A kind of composite heat carrier medium corrosion-inhibiting coating and preparation method thereof | |
| CN113845671B (en) | Preparation method of spherical polyethylene wax | |
| CN110066589A (en) | A kind of graphene zinc-copper multicomponent alloy anticorrosive paint and preparation method thereof | |
| CN116814045B (en) | Epoxy resin composition for communication equipment and preparation method thereof | |
| CN112553561B (en) | Method for preparing nitride enhanced wear-resistant coating by thermal spraying |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |