166 results about "Anodizing" patented technology

The invention discloses a rare earth element doped stainless steel oxygen evolution electrode and a preparation method thereof, and belongs to the technical field of electrode preparation. The preparation method of the stainless steel oxygen evolution electrode comprises the steps that stainless steel with impurities removed serves as an anode and is placed in an alkaline solution with the concentration being 7-12 mol / L, cyclic voltammetry is adopted, stainless steel treated through cyclic voltammetry is obtained, and the potential window is-0.3 V to 1.5 V; the stainless steel is placed in an alkaline solution with the concentration being 1-2 mol / L and serves as an anode for electrolysis, and anodic oxidation stainless steel is obtained; the anodic oxidation stainless steel is placed in a cerium ion solution, a cyclic voltammetry method is adopted, the stainless steel serves as an anode to be treated, and a stainless steel oxygen evolution electrode is obtained through electro-deposition; wherein the potential window is-1.5 V to 1.0 V (+ / -0.5 V). The preparation method is simple, the cost is low, large-scale preparation is easy, long-time, high-temperature and other complex preparation processes are not needed, and when the electrode is used as an electrode for electrolyzing oxygen evolution in water, the electrode has excellent catalytic activity and shows huge application prospects in large-scale industrial hydrogen production through water electrolysis.

The invention discloses an aluminum alloy profile surface highlight corrosion-resistant treatment process which comprises the following steps: S1, pretreatment including degreasing and alkaline etching; s2, anodic oxidation; s3, chemical brightening treatment; s4, surface wiredrawing; s5, carrying out sand blasting; s6, highlight is conducted; s7, treating with a silane coupling agent; s8, carrying out secondary oxidation treatment; s9, performing nano-composite hole sealing; s10, spraying, printing and chemical brightening are used for replacing traditional mechanical polishing, so that the surface of the aluminum alloy profile is smoother, the uniformity of glossiness is improved, scratches possibly generated by mechanical polishing are avoided, stable chemical bonds are formed between the profile and a hole sealing layer through coupling agent treatment, the surface state is optimized, it can be ensured that a hole sealing agent can be attached more firmly, and the service life of the aluminum alloy profile is prolonged. According to the secondary oxidation treatment, an oxidation film is thickened after highlight treatment, the formed highlight surface is not affected, invasion of a corrosion medium is effectively blocked, nano-scale pores in the oxidation film are filled with nano silicon dioxide, a compact hole sealing layer is formed, and therefore the corrosion resistance of the workpiece is improved.

The invention discloses an aluminum alloy hard oxidation process, and relates to the technical field of aluminum alloy part surface treatment, the aluminum alloy hard oxidation process comprises the following steps: S1, pretreatment: oil removal, alkali corrosion treatment and acid pickling neutralization; s2, hard oxidation is conducted, specifically, the pretreated workpiece is put into an oxidation tank with electrolyte and a stirring system to be subjected to stirring and oxidation treatment; and S3, post-treatment: cleaning with hot water, sealing with nickel acetate and drying in a drying oven. The process mainly comprises the following steps: carrying out pretreatment of oil removal by an organic solvent, alkali etching and acid pickling, combining sulfuric acid-citric acid-monopotassium phosphate composite electrolyte, pulsed power supply and gradient boosting oxidation, carrying out ultrasonic stirring and precise temperature control hard oxidation, and finally carrying out nickel acetate sealing aftertreatment. The four industrial problems of poor batch consistency of oxidation films of aluminum alloy workpieces, non-uniformity of complex workpieces, high energy consumption and poor compatibility to high alloy materials are thoroughly solved, and the oxidation film which is high in hardness, uniformity and corrosion resistance and saves energy is obtained.

The invention discloses 7000 series aluminum alloy and a preparation method and application thereof, and relates to the technical field of aluminum alloy. The aluminum alloy comprises Al and the following components in percentage by mass: 6%-7% of Zn; 2.5%-4% of Mg; cu: 0.2%-0.7%; 0.05% to 0.2% of Mn; less than or equal to 0.05% of Cr; ti < = 0.1%; zr < = 0.1%; less than or equal to 0.15% of Si; fe is less than or equal to 0.15%. The aluminum alloy has high strength, high corrosion resistance and excellent anodic oxidation performance, and is suitable for the field of 3C electronic products or automobiles. The invention further provides a preparation method and application of the aluminum alloy.

According to the anodic oxidation technology suitable for the 6061 aluminum alloy, multi-component silica sol is adopted for conducting room-temperature dipping hole sealing and low-temperature curing on a 6061 aluminum alloy anodic oxidation film, and technology energy consumption and equipment requirements are reduced. The dense silicon network seals the membrane holes, prolongs the diffusion path of a corrosive medium and prevents the corrosive medium from invading the substrate, thereby greatly improving the corrosion resistance of the membrane layer and inhibiting pitting corrosion.

The utility model relates to the technical field of clamps, in particular to an aluminum alloy hard anodizing spring clamp which comprises a support, a hook and a clamping piece, the support is of a triangular structure and comprises a vertical rod and a transverse rod, the vertical rod is perpendicular to the transverse rod, and inclined rods are symmetrically arranged between the vertical rod and the transverse rod. The hooks are welded to the ends, away from the transverse rod, of the vertical rods and used for hanging the clamp and connecting current, the clamping pieces are welded to the two sides of the transverse rod, cylindrical rods are arranged at the two ends of each clamping piece and used for clamping aluminum alloy parts, the clamping pieces are manufactured through punching and bending, have elasticity and can guarantee stable clamping, and the multiple clamping pieces can clamp a plurality of parts at the same time for oxidation treatment. Six clamping pieces are arranged in the attached drawing, and six parts can be clamped at the same time. When the clamping piece is used, the cylindrical rods at the two ends of the clamping piece extend into holes in an aluminum alloy part, clamping marks cannot be left on the surface of the part while clamping is stable, the conductivity is good, stable current can be connected to the part, and the part can be effectively prevented from being damaged.

The utility model provides an aluminum sheet surface phosphoric acid anodizing treatment device for a single-lap tensile shear test of an adhesive film, which comprises a reaction tank filled with phosphoric acid electrolyte; the aluminum sheet is arranged at one end in the reaction tank in a hanging manner and is connected with the positive electrode of the power supply; the lead plate is arranged at the other end in the reaction tank in a hanging manner and is connected with the negative electrode of the power supply; the heater is arranged in the reaction tank and is used for heating the phosphoric acid electrolyte; the areas of the lead plate and the aluminum sheet immersed in the phosphoric acid electrolyte are set as S1 and S2 respectively; the range of S1 to S2 is 1: 1-1: 10. By designing the special aluminum sheet surface phosphoric acid anodizing treatment device, instant and small-batch phosphoric acid anodizing treatment on aluminum sheets in a laboratory environment is realized, and the problem that the existing industrial batch production mode is difficult to meet small-scale and high-frequency flexible requirements is solved; and the rapid verification requirement on a small amount and multiple batches of samples in the adhesive film research and development stage is met.

The application discloses a continuous anodic oxidation production line for curtain wall and a preparation method thereof, wherein the production line is provided with a feeding mechanism, a grinding plate mechanism, a first pressure water washing mechanism, an alkali immersion mechanism, a second pressure water washing mechanism, an oxidation mechanism, a first detection mechanism, a third pressure water washing mechanism, an electrolytic coloring mechanism, a fourth pressure water washing mechanism, a hole sealing machine, a second detection mechanism, a film coating machine and a discharging mechanism; after unwinding the plate material, the plate material is input through the feeding mechanism and then sequentially passes through the above mechanisms to perform first pressure water washing, alkali washing, second pressure water washing, oxidation, first detection, third pressure water washing, electrolytic coloring, fourth pressure water washing, hole sealing, second detection and film coating on the plate material, so as to obtain the curtain wall; and after obtaining the curtain wall, the curtain wall is output through the discharging mechanism, continuous production of the curtain wall is realized, and the curtain wall does not need to be stopped for transfer and plate material carrying; the overall degree of automation is high, and the processing efficiency is high.

The invention relates to an anodizing method suitable for a titanium alloy cylindrical part, belongs to the technical field of metal surface treatment, and solves at least one of the problems that an oxidation film formed by anodizing the titanium alloy cylindrical part is insufficient in density and hardness, is locally loosened and is easy to fall off and the like in the prior art. According to the anodizing method suitable for the titanium alloy cylindrical part, in the anodizing process, the titanium alloy cylindrical part continuously rotates in one direction along the axis in an anodizing solution, and the rotating linear speed and voltage are increased in a stepped mode. A surface oxidation film of the titanium alloy cylindrical part prepared through the method is high in compactness, the porosity is smaller than or equal to 24%, the hardness is high and ranges from 250 HV to 300 HV, the problem of local loosening and falling is almost avoided, the titanium alloy part has better wear resistance and anti-corrosion effect, according to testing of GB / T 10125-2021 Artificial Atmosphere Corrosion Test Salt Spray Test, after 500 hours of neutral salt spray test, the corrosion resistance of the titanium alloy cylindrical part is improved, and the corrosion resistance of the titanium alloy cylindrical part is improved. And the surface of the film layer has no corrosion sign.

The present invention discloses a long-lasting intelligent composite antibacterial coating with dual pH response function and its preparation method, including: 1) constructing a nanotube structure on the surface of a pretreated titanium alloy substrate by a surface anodizing process; 2) combining a cyclic vacuum infusion + low-temperature micro-airflow process, infusing a povidone-iodine mixed solution into the nanotube pores on the titanium alloy surface; 3) after the titanium alloy surface is washed with water, a surface silanization treatment is performed to introduce a silane preparation with a double bond; 4) combining a surface cyclic light curing process, NAC-ChiMA is introduced into the substrate surface by a double bond addition reaction between the silane preparation and chitosan (NAC-ChiMA) modified with MA and NAC, to achieve the preparation of a composite antibacterial coating. The composite coating realizes the sequential release and slow release of NAC and povidone-iodine through the characteristics of vacuum drug loading and dual pH response, first destroying the extracellular polymeric substances of the bacterial biofilm, and then killing the bacteria in the biofilm, thereby achieving effective treatment of orthopedic implant infection.

The utility model discloses a device for aluminum alloy anodic oxidation dyeing, which comprises an electrolytic dyeing tank, two supports are fixedly connected to both sides of the electrolytic dyeing tank, the upper ends of the four supports are fixedly connected with the same bearing plate, the upper surface of the bearing plate is fixedly connected with two support plates, and the support plates are fixedly connected with the upper surface of the bearing plate. The upper surfaces of the two supporting plates are fixedly connected with first motors, and the output ends of the two first motors are fixedly connected with first belt wheels. Through an air blower and an air outlet, after the air blower is started, the air blower generates wind power, the wind power is sprayed out through the air outlet, parts on the hook can be quickly blow-dried, the volatilization speed of electrolyte is increased, and the working efficiency is improved; and air blown out of the air outlet can blow-dry the parts more comprehensively, and the part drying efficiency is improved.

A method of anodizing an aluminum alloy, comprising the steps of: providing an anodizing bath containing tert-butoxide, primarily oxalic acid; aging the anodic oxidation bath to condense the metal alkoxide to form metal oxide particles and an acid ester; heating the bath to 40 DEG C to 80 DEG C; stirring the bath at a speed of 200 to 700 rpm (revolutions per minute); immersing the workpiece in a bath and anodizing at a constant current density of 1 A / dm2 to 4 A / dm2 for 1 to 20 minutes or until the bath voltage reaches a threshold value of 100 to 200 V; the workpiece is then anodized at a constant voltage for 20 minutes to 200 minutes to produce an anodized surface having a thickness of 5 microns to 100 microns, the anodized surface comprising an optically discontinuous pore structure that produces a white or near-white appearance.

1. Name of the product in this design: Clamp (Three-head clamp). 2. Application of this design: It is used as a clamp to hold aluminum profiles during electroplating, electrophoresis, anodizing, polishing and other processes. 3. The key design features of this product are the shapes shown in the left view of Design 1 and the left view of Design 2. 4. The image or photograph that best illustrates the key design points: Left view of Design 1. 5. Design 1 is designated as the basic design.

The present invention discloses a method for processing a corrosion-resistant blade adjustment ring. Two half-ring blanks arranged in half are obtained by machining, and after the two half-ring blanks are paired to process multiple end holes, a suitable first positioning bushing is selected by calculation, so that the first positioning bushing with clearance fit can effectively avoid dimensional deviation when the first ring body is decomposed, ensuring that the subsequent second positioning bushing with interference fit can still meet the technical requirements. After the mounting hole is machined, sulfuric acid anodizing treatment can be performed to effectively ensure the integrity of the anodized protective film on the surface of the blade adjustment ring, improve the corrosion resistance of the blade adjustment ring, and prevent the occurrence of corrosion to the greatest extent, so that the turboshaft engine using the blade adjustment ring of this scheme has high reliability and long service life. At the same time, the machining process after sulfuric acid anodizing treatment is reduced, and the risk of damaging the anodized protective film during subsequent machining is reduced. The method has strong practicality and is suitable for wide promotion and application.

The invention discloses a manufacturing method of a heteromorphic aluminum piston. The manufacturing method comprises the following operation steps: S1, casting a piston head made of an aluminum alloy material, and synchronously embedding a wear-resistant insert ring and a salt core; s2, forging a piston skirt part made of an aluminum alloy material; s3, the piston head and the piston skirt are welded into a whole through the friction welding technology; and S4, welding flashes are removed, final finish machining is conducted on the combined piston blank, anodic oxidation or other surface treatment is conducted, and the finished composite integrated piston is obtained. The invention further provides the aluminum piston prepared through the manufacturing method of the abnormal-state aluminum piston. According to the manufacturing method of the special-state aluminum piston, metallurgical bonding of the casting head and the forging skirt is achieved through the friction welding solid connection technology, the problems of fusion welding cracks and air hole defects are fundamentally avoided, meanwhile, the requirements for abrasion resistance and heat resistance of the head and toughness of the skirt are considered, lightweight design is conducted, the manufacturing period is shortened, and the percent of pass is increased.

In an example embodiment, a method of coloring an alloy is provided. The method includes anodizing a substrate in an anodizing bath comprising phosphoric acid at a constant temperature and a constant voltage for a first period of time to form an anodized layer comprising a barrier layer; reducing the constant voltage applied to the anodizing bath for a second period of time to change a thickness of the barrier layer and change a width of pores in the anodized layer; plating the substrate in a plating bath at a first current that increases over a third period of time according to a current profile of the plating bath; and plating the substrate in the plating bath at a second current for a fourth period of time.

This invention discloses an anodizing process and apparatus for the inner wall of a metal container, relating to the field of metal surface treatment technology. The apparatus includes a cathode and a circulation system; the cathode is inserted into the inner cavity of the metal container through an opening; the circulation system includes at least a circulation pump and an inlet pipe, the outlet of which is configured to be positioned at the bottom of the container's inner cavity; wherein the opening of the metal container is configured as an overflow outlet for the electrolyte. This invention, through forced circulation, allows the electrolyte to enter from the bottom and exit from the top of the container, forming a flow pattern of bottom inlet and top overflow. This effectively improves the flow field distribution within the container cavity, promptly removes reaction heat and discharges oxidizing gases, significantly improving the uniformity and density of the anodized film on the inner wall and reducing film defects.

The present invention relates to the field of metal surface preparation by anodizing processes, and to a method for producing a corrosion-resistant aluminum-silicon alloy casting, and more particularly to the optimization of the anodizing of high-silicon aluminum castings by using a multi-stage anodizing cycle. The present invention also relates to a corrosion-resistant aluminum-silicon alloy casting and its use.

The invention provides a coating material which sequentially comprises a conductive base material, a Cu2O antibacterial layer and a low-surface-energy modification layer from inside to outside, an anodic oxidation or micro-arc oxidation layer is arranged or not arranged between the conductive base material and the Cu2O antibacterial layer, cuprous oxide is high in antibacterial performance but poor in corrosion resistance, and the coating material can be applied to the field of coating materials. The corrosion resistance of the metal base material can be effectively improved through anodic oxidation treatment or micro-arc oxidation treatment, and then the service life of the conductive metal base material is prolonged.

The present application relates to the technical field of metal pressure processing, and discloses an extrusion method for recycled aluminum alloy profiles for anodic oxidation and electrophoretic spraying, which comprises the following steps: adding strontium and boron into recycled aluminum melt, controlling the mass ratio with iron, forming an interface enrichment layer with shear sensitivity on the surface of the iron-containing impurity phase by using strontium; establishing an ingot axial temperature gradient, and controlling the average equivalent strain rate in the extrusion process to be maintained in the critical rheological interval, and physically activating the interface enrichment layer to produce shear thinning; and implementing online gradient freezing quenching after the profile leaves the die. Through the synergy of the critical strain rate and the interface modification, the present application builds an in-situ lubricating layer between the hard impurity phase and the aluminum matrix, eliminates the microscopic tearing caused by the rheological mismatch, and solves the color difference problem of the recycled aluminum surface treatment.

The invention provides a 7xxx series aluminum alloy plate strip for anodic oxidation with a high recovery ratio and a preparation method of the 7xxx series aluminum alloy plate strip. The 7xxx series aluminum alloy plate strip comprises the following elements of 0.06%-0.12% of Si element, 0.10%-0.25% of Fe element, 4.5%-5.5% of Zn element, 2.0%-3.0% of Mg element, 1.2%-2.0% of Cu element, 0.05%-0.15% of Mn element, 0.10%-0.15% of Er element, 0.10%-0.12% of Zr element, 0%-0.03% of Ti element and the balance aluminum element. The aluminum alloy plate strip is prepared through the steps of reclaimed material grading pretreatment, low-liquid-level semi-continuous casting, multi-stage homogenizing heat treatment, hot rolling, cold rolling, solid solution, pre-stretching, two-stage aging and the like. Through joint optimization of material components and the process, the finished plate strip has excellent mechanical performance, an oxidation film is uniform in color and luster, and salt mist resistance, friction resistance and the like are achieved.

In an aspect, disclosed herein are a methods, systems and apparatus for modifying a component surface comprising, contacting the surface, with an laser beam, the surface comprising a semiconductor tool manufacturing component; modifying the surface responsive to the contacting, wherein the modifying the surface comprises forming, by micro-machining, etching, ablating, ionizing, anodizing, oxidizing, texturing, or roughening, or a combination thereof, a functional feature in the surface.

The invention provides a die-casting aluminum alloy material and a preparation method of the die-casting aluminum alloy material, and belongs to the technical field of die-casting aluminum alloy materials. The aluminum alloy material comprises the following components in percentage by weight: 0.05 percent to 0.1 percent of silicon, 0.45 percent to 0.83 percent of iron, 0.018 percent to 0.05 percent of copper, 1.2 percent to 2.6 percent of manganese, 0.35 percent to 0.7 percent of magnesium, 3.3 percent to 4 percent of zinc, 0.04 percent to 0.08 percent of chromium and the balance of aluminum and inevitable impurities containing trace metals. The technical problem to be solved by the invention is to overcome the defect that the surface of the conventional die-casting aluminum alloy after anodic oxidation is grey black and cannot be subjected to color treatment.

The invention belongs to the technical field of aerospace fastener processing, and particularly relates to an aerospace aluminum alloy fastener black anodic oxidation treatment process which sequentially comprises the following steps: S1, pretreatment; s2, anodic oxidation treatment is conducted, specifically, the fastener subjected to pretreatment is placed in an anodic oxidation electrolyte to be subjected to anodic oxidation; s3, dyeing treatment is conducted, specifically, the fastener subjected to anodic oxidation is placed in a black dyeing solution to be dyed; and S4, sealing treatment is conducted, specifically, the dyed fastener is placed in sealing liquid to be sealed. According to the invention, the growth defect of the oxidation film is inhibited from the source through the composite additive system, and the optimized dyeing process is combined, so that the uniformity of the film layer and the sufficient and firm adsorption of the dye are ensured, and the surface color of the final product is uniform and black without any irregular white points.

The utility model discloses a circulating self-cleaning type anode precision oxidation device which is characterized in that an oxidation anode is arranged on two side plates of a tank chamber of a tank body, and a liquid supply cavity partition plate and a backflow cavity pore plate are respectively and fixedly arranged at the front end and the rear end of the tank chamber of the tank body; a liquid supply cavity is defined by the liquid supply cavity partition plate and an end plate at the corresponding end of the tank body, a filter is arranged in the liquid supply cavity, and a plurality of fluid directors are mounted on the liquid supply cavity partition plate; a backflow cavity is defined by the backflow cavity pore plate and an end plate at the corresponding end of the tank body and leads to the liquid supply cavity through a circulating pipeline; and an anode scraping plate is arranged on the oxidation anode in a sliding manner. A flow guide cylinder of the flow guide device is fixedly installed in a plate hole of the liquid supply cavity partition plate, and a flow guide paddle is installed on an output shaft of the flow guide motor and located in the flow guide cylinder in a rotatable mode. The precise oxidation device not only can effectively filter out solid particle impurities in the electroplating liquid, but also can effectively reduce the flow velocity difference of the electroplating liquid on the section of the tank chamber, prevents the circulating electroplating liquid from generating vortexes and flowing dead angles, and is particularly suitable for precise anodic oxidation treatment.

A surface treatment method for a SiC substrate, including the following processes or steps: anodizing a workpiece surface (W1) of the SiC substrate by passing a current having a current density of 15 mA / cm 2 or more through the SiC substrate as an anode in the presence of an electrolyte (S); arranging an abrasive wheel layer (32) of a surface treatment pad (3) to face the workpiece surface, and selectively removing oxides formed on the workpiece surface by the anodizing with the abrasive wheel layer; and simultaneously or sequentially performing the anodizing of the workpiece surface and the selective removal of the oxides formed on the workpiece surface with the abrasive wheel layer.

The invention relates to the technical field of metal processing, and discloses a three-dimensional metal trademark manufacturing process which comprises the following steps: preparing a coating composition from the following raw materials: modified silicon dioxide nanoparticles, oxidized polyethlene wax emulsion and alkali-soluble acrylic resin emulsion; an aluminum alloy base material is selected, the back face of the aluminum alloy base material is milled to be thin, the front face is subjected to anodic oxidation and hole sealing treatment, and a coating composition is coated to form a protective coating; stamping forming is carried out, extrusion stamping is carried out through cooperation of corner heightening convex points of an upper die punch and corner deepening concave pits of a forming insert, and the base material is forced to plastically flow to fill character grooves; after forming, a top coating and surface metal are removed through CNC cutting, metal three-dimensional characters are reserved, and the remaining coating is cleaned and removed through a weak alkaline solution. The stress dispersion and lubrication performance of the coating is utilized, brittle cracking and whitening of the anodic oxide film in the stamping process are effectively prevented, and the three-dimensional metal trademark with the sharp contour, the complete side face oxidation and the highlight top face is obtained in cooperation with the cutting technology.

A processing method for forming an aluminum alloy surface having a fine texture and a matte appearance includes: chemically polishing an aluminum alloy surface to have a 60-degree gloss between 10 GU and 1,000 GU; performing an electrolytic treatment on the chemically polished aluminum alloy surface; and performing an anodizing treatment on the aluminum alloy surface that undergoes the electrolytic treatment. The electrolytic treatment is operated at a current density between 0.01 A / dm2 and 1.5 A / dm2 and a gradually increasing voltage from 0 V to 50 V for 3 minutes to 30 minutes. The anodizing treatment is operated at a current density between 0.1 A / dm2 and 2.5 A / dm2 and a voltage between 10 V and 20 V for 30 minutes to 120 minutes.

The utility model provides a high-capacity anodized metal workpiece baking oven which comprises a baking oven body, a supporting box is fixedly connected to the bottom of the baking oven body, and a plurality of air inlets communicated with the inside and the outside of the supporting box are formed in the supporting box; baking cavities and heating cavities which are arranged up and down are formed in the baking box body, the multiple heating cavities are arranged side by side, a first partition plate is arranged between every two adjacent heating cavities, and a plurality of electric heating pipes are arranged in each heating cavity; the top of the baking box body is further provided with a plurality of induced draft fans which are arranged right opposite to the heating cavities in the vertical direction and communicate with the baking cavities. A communicating frame is arranged between the supporting box and each heating cavity, and a plurality of first communicating holes are formed between each heating cavity and the baking cavity. The baking oven solves the problem that in the prior art, a baking oven is small in capacity and needs to bake in batches, so that the overall efficiency is low.

This invention relates to the field of aluminum alloy materials technology, specifically to a deformation-resistant aluminum alloy for keel frames and its processing technology. The invention first uses aluminum alloy powder as the main raw material, then adds boron nitride to prepare an alloy coating. The addition of boron nitride increases the hardness of the alloy coating. Then, a laser is used to laser-clad the aluminum alloy substrate surface to form an alloy coating, improving the strength of the aluminum alloy and giving it good deformation resistance. During anodizing, the aluminum alloy parts are immersed in an electrolyte containing a silica-metal-organic framework composite material, forming a dense oxide film on the aluminum alloy surface. The addition of the silica-metal-organic framework composite material improves the corrosion resistance and surface hardness of the aluminum alloy.