496 results about "Anodic oxidation" patented technology

The invention relates to the technical field of aircraft part processing, testing or inspection and the like, and provides an aircraft aluminum alloy plate aging evaluation method based on an equivalent circuit model, and the method comprises the following steps: collecting electrochemical impedance spectrums of samples with different exposure age limits, and extracting electrochemical impedance spectrum characteristics of the samples; establishing an equivalent circuit model comprising solution resistance, coating resistance, coating capacitance, Warburg impedance, anodic oxide film charge transfer resistance, interface capacitance, aluminum alloy matrix charge transfer resistance, interface electric double-layer capacitance, inductance and corresponding resistance of the inductance based on the characteristics, wherein the equivalent circuit model comprises the solution resistance, the coating resistance, the coating capacitance, the Warburg impedance, the anodic oxide film charge transfer resistance, the interface capacitance, the aluminum alloy matrix charge transfer resistance and the interface electric double-layer capacitance; and analyzing a resistance curve and a capacitance curve obtained by fitting the model to complete the evaluation of the corrosion and aging degree. According to the method, systematicness and accuracy of aging evaluation are improved, an electrochemical mechanism in the corrosion process can be disclosed, time correlation modeling of the aging process can be achieved, and the method is suitable for long-term service performance monitoring and service life prediction of the aviation aluminum alloy structure.

The invention relates to the technical field of aluminum alloy materials, and provides a high-thermal-conductivity 6xxx aluminum alloy, a preparation method thereof and an electronic product structural part. Wherein the 6xxx aluminum alloy comprises the following components in percentage by mass: 0.3 to 0.5 percent of Mg, 0.2 to 0.35 percent of Si, 0.08 to 0.12 percent of Ce, less than or equal to 0.10 percent of Cu, less than or equal to 0.15 percent of Fe, less than or equal to 0.05 percent of Mn, less than or equal to 0.10 percent of Zn, less than or equal to 0.05 percent of Ti, less than or equal to 0.15 percent of total impurities and the balance of Al; and Mg / Si is in the range of 1.3 to 1.5. According to the 6xxx aluminum alloy and the preparation method thereof, the content and the mass ratio of Si and Mn are accurately regulated and controlled, meanwhile, a trace Ce element is added, the thermal conductivity and the anodic oxidation performance of the 6xxx aluminum alloy are improved, solid solution and aging processes are further matched, the beta ''phase and the grain size are controlled, and the alloy has the excellent anodic oxidation performance while having the high thermal conductivity.

The invention relates to a method for constructing a composite super-hydrophobic coating through double bonding. The preparation method comprises the following steps: taking a clean copper sheet which is not pretreated as a substrate, dipping the copper sheet in a suspension consisting of nanoparticles and sulfydryl-containing siloxane ethanol, taking out, washing, drying, dipping in a perfluoromercaptan ethanol solution, taking out, washing, and drying to obtain the copper-based super-hydrophobic surface coating. The coating prepared by the method has excellent super-hydrophobicity, icing resistance and stability. Different from an existing conventional preparation method, the method has the advantages that pretreatment operation such as abrasive paper polishing, strong acid etching or anodic oxidation does not need to be carried out on a copper sheet, and micro-nano roughening and low-surface-energy self-assembly can be completed on the copper surface only through two-step normal-temperature dipping. The method is simple in preparation process, mild in condition, free of expensive equipment, thin in coating thickness and small in influence on electric conduction and heat conduction of the copper substrate, intrinsic performance of copper can be reserved, the electric conduction / heat conduction characteristic of the copper substrate is considered, and the method has wide application value and prospects.

The invention is applicable to the technical field of process optimization, and particularly relates to a method for generating an anodic oxidation current density adjustment scheme based on mutual information entropy, which comprises the following steps of: obtaining process parameters in real time and carrying out adaptive filtering processing to ensure the accuracy and effectiveness of key characteristic parameter extraction and provide a high-quality data basis for optimization. Determining key feature parameters according to the process parameters and a mutual information entropy value of a preset optimization target; screening current density data to be optimized according to the key parameter influence weight; a to-be-selected current density curve matched with a preset oxidation quality standard is extracted from the to-be-optimized data, the deviation between a current value and the curve is calculated to serve as a to-be-selected optimization parameter, and an abstract standard is converted into a concrete basis. A self-adaptive adjustment scheme is generated in combination with to-be-selected parameters, process changes are dynamically adapted, fluctuation caused by static setting is avoided, high consistency of current density control precision and oxidation film quality stability is achieved, the optimization period is shortened, and production efficiency is improved.

The invention discloses a layered nano-porous copper loaded cuprous oxide / copper oxide nanowire composite material as well as a preparation method and application thereof. The material is a thin strip and comprises an amorphous substrate thin strip, multiple layers of nano-porous copper covering an amorphous substrate and a cuprous oxide / copper oxide two-component heterojunction nanowire loaded on the surface of the nano-porous copper. The preparation method comprises the following steps: firstly, freely dealloying an amorphous ribbon, and adding PVP (Polyvinyl Pyrrolidone) into dealloying corrosive liquid to generate layered nano-porous copper; then, copper hydroxide nanowires grow on the surface of each layer of nano-porous copper in situ through the anodic oxidation technology; and finally, converting the copper hydroxide into cuprous oxide / copper oxide nanowires with different component proportions by regulating and controlling the temperature by adopting a heat treatment process. The prepared composite material has a larger specific surface area and more active sites, and has unique structure and performance advantages in the field of photocatalytic degradation of organic dyes.

The application relates to the technical field of sodium ion batteries, and particularly discloses a negative electrode sheet based on an anodic aluminum foil and a preparation method thereof, which comprises: a honeycomb-shaped porous current collector including a pure aluminum foil layer and a nano-porous aluminum oxide layer, wherein the nano-porous aluminum oxide layer is obtained by sequentially performing anodic oxidation and acid corrosion on the aluminum foil current collector; a first coating layer, which is a high-specific-energy phosphorus-doped material and is embedded in the porous structure of the nano-porous aluminum oxide layer; and a second coating layer, which is made of hard carbon material and is coated on the first coating layer. In the application, the aluminum foil is treated by anodic oxidation to obtain a honeycomb-shaped nano-porous aluminum oxide layer, and then the thickness and pore size of the oxide layer are regulated by acid corrosion treatment, so that the surface roughness of the aluminum foil is improved, the adhesion between the electrode sheet and the current collector is improved, and the volume expansion of the phosphorus-based material is inhibited through the embedding design of the first coating layer, thereby improving the cycle stability and safety of the battery.

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 present invention relates to a high-voltage anodization method and an aluminum substrate anodized thereby and, more specifically, to a high-voltage anodization method using a phosphoric acid solution as an electrolyte, which enables stable anodization while applying a high voltage without causing a burning phenomenon on the surface of the aluminum substrate, and an aluminum substrate anodized thereby. The high-voltage anodization method according to the present invention improves a voltage ramping process in anodizing using phosphoric acid so that a high voltage of 190 V or higher can be applied while preventing surface burning of the aluminum substrate, thereby enabling stable anodization of the aluminum substrate. In addition, an anodized membrane manufactured using the aluminum substrate produced by the high-voltage anodization method of the present invention can stably form a hexagonal nanostructure having large pores of 150 nm or greater.

The invention relates to the technical field of electroplating pools, in particular to a device for improving electroplating uniformity of a VCP electroplating line, which comprises an electroplating pool, a metal mesh plate is fixed in the electroplating pool, a rotating handle is arranged below the metal mesh plate, the rotating handle is rotatably connected to a bottom plate of the electroplating pool, blades are fixed on the surface of the rotating handle, and a mounting frame is mounted at the top of the electroplating pool. A servo motor is mounted on the surface of the mounting frame, the power output end of the servo motor is in transmission connection with a driving shaft, and the bottom end of the driving shaft penetrates through the metal net plate and then is inserted into the top end of the rotating handle; the device has the beneficial effects that the rotating handle is driven to rotate through the servo motor, the blades are driven to forcibly stir electrolyte, metal ion diffusion is accelerated, and the concentration gradient is eliminated; electrolyte circulation is promoted in the stirring process, so that metal ions generated by anodic oxidation reaction are rapidly supplemented to a cathode area, the deposition rate of a plating layer is stabilized, and the phenomenon that the edge thickness of a workpiece is out of tolerance is reduced.

The utility model relates to the field of aluminium alloy surface treatment technology, concretely is an aluminium alloy anodic oxidation film layer removing device, including ultrasonic cleaning tank, the ultrasonic cleaning tank top is equipped with auxiliary cleaning subassembly, the auxiliary cleaning subassembly is by first support, second support common installation on the ultrasonic cleaning tank, the auxiliary cleaning subassembly includes the T character structure board of installing on the first support, the T character structure board below is equipped with the rectangular plate, drives the shaft through reciprocating motor, drives transmission tooth and the tooth groove on T character structure board meshing, realizes the up-and-down reciprocating motion of aluminium alloy plate between T character structure board and the clamp plate, and the cavitation effect produced by cooperation ultrasonic cleaning tank has greatly increased the contact frequency and contact area of cleaning fluid and oxidation film layer, effectively solved the problem that oxidation film layer because of the inadequate contact leads to the poor cleaning effect, the low efficiency, significantly promoted oxidation film layer cleaning efficiency and quality, satisfy actual production demand.

The invention relates to the technical field of material surface treatment, and discloses a surface treatment method for an aluminum alloy with a fluorescent layer and an aluminum alloy workpiece. The surface treatment method for the aluminum alloy with the fluorescent layer comprises the following steps that S1, an aluminum alloy matrix is subjected to anodic oxidation treatment, and a porous anodic oxidation film is formed on the surface of the aluminum alloy matrix; s2, fluorescent ink is locally sprayed on the surface of the porous anodic oxide film, curing is carried out, a local fluorescent layer is formed, and the area where the fluorescent ink is not sprayed is a non-fluorescent area; s3, performing global dyeing on the porous anodic oxide film of the local fluorescent layer and the non-fluorescent region, and drying to form a global covered dyeing layer; and S4, hole sealing is conducted, a hole sealing layer covering the whole area is formed on the dyeing layer, and the aluminum alloy workpiece is prepared. When the UV lamp irradiates, fluorescent patterns are shown on the aluminum alloy workpiece, so that the functions of identity information recognition and counterfeiting prevention are achieved, and the aluminum alloy workpiece is excellent in corrosion resistance and wear resistance and meets the subdivision requirements in the fields of industry, consumption, safety and the like.

Exemplary methods and techniques anodize a metallic substrate. Exemplary metallic substrates may include aluminum or aluminum alloys. The formation of a metal oxide layer on the metallic substrate may occur in an electrolytic system. Exemplary electrolytic systems may comprise at least one electrode connected to a voltage-generating device and an aqueous acid solution. Exemplary aqueous acid solutions may comprise phosphoric acid, boric acid, and water.

The application discloses a preparation method of an aluminum oxide template, a membrane electrode and a preparation method thereof and a fuel cell. The preparation method of the aluminum oxide template is characterized by the following steps: an anodic oxidation method is performed on an aluminum substrate, and etching treatment is performed, so that a plurality of first holes and a plurality of second holes are formed on the obtained aluminum oxide template, and the aluminum oxide template containing at least two different holes is obtained. In the premise of maintaining the structural stability and the hole structure stability of the aluminum oxide template, the area proportion of the holes on the aluminum substrate is improved, the gap between the holes is reduced, the nanometer material array with smaller interval gaps can be formed by using the aluminum oxide template, the waste of nanometer materials caused by falling into the nanometer materials in the gaps is avoided, the deposition efficiency of the nanometer materials is improved, and the utilization rate of noble metals is improved.

The utility model discloses a uniform flow field hard alloy anodic oxidation device which comprises a tank body and oxidation anodes, the oxidation anodes are installed on two side plates of a tank chamber of the tank body, a liquid homogenizing cavity pore plate and a backflow cavity pore plate are fixedly installed at the front end and the rear end of the tank chamber of the tank body respectively, and an adjusting pore plate is adjustably installed on the liquid homogenizing cavity pore plate; the liquid uniformizing cavity pore plate and the end plate at the corresponding end of the tank body define a stirring and liquid uniformizing cavity, and a stirrer is arranged in a cavity body of the stirring and liquid uniformizing cavity; a backflow cavity is defined by the backflow cavity pore plate and an end plate at the corresponding end of the tank body, and the backflow cavity leads to the stirring and liquid homogenizing cavity through a circulating pipeline; and a movable anode scraping plate is arranged on the oxidation anode. The liquid uniformizing holes in the liquid uniformizing cavity pore plate correspond to the liquid uniformizing adjusting holes in the adjusting pore plate in a one-to-one mode, and the adjusting pore plate is adjustably installed on the liquid uniformizing cavity pore plate through pore plate adjusting bolts. The device can form a stable liquid flow field in the tank, ensures uniform distribution of metal ions, and is particularly suitable for precise anodic oxidation treatment of hard alloy.

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.

The invention provides a metal or alloy surface treatment method and a metal or alloy product. The surface treatment method of the metal or the alloy comprises the following steps: forming an organic-inorganic hybrid layer on the surface of an anodic oxide layer on at least one surface of the metal or the alloy; the organic-inorganic hybrid layer is provided with a spatial network structure formed by silicon dioxide, a copolymer of organic oxysilane containing an epoxy group and a benzophenone compound containing a hydroxyl group, and nanocrystallized superfine carbon black. At least one surface of the metal or alloy product is provided with an anodic oxide layer and an organic-inorganic hybrid layer; the organic-inorganic hybrid layer is provided with a spatial network structure formed by silicon dioxide, a copolymer of organic oxysilane containing an epoxy group and a benzophenone compound containing a hydroxyl group, and nanocrystallized superfine carbon black. According to the technical scheme, the organic-inorganic hybrid high-brightness black layer is formed, so that the high-brightness black coating not only has an excellent appearance orange peel effect and excellent xenon lamp aging resistance, but also has extremely high hardness and extremely excellent car washing resistance.

The utility model discloses a kind of support for bearing anodic oxidation hanger, including support base and support body;The two sides of the support base are provided with electric linear guide rails, and support body is installed in the movable end of electric linear guide rail, for the front and back movement of support body;The top of the support body is provided with lifting structure, and the lifting end of lifting structure is installed with the adjusting rod assembly for bearing anodic oxidation hanger, and anodic oxidation hanger is set to the adjusting end of adjusting rod assembly.The utility model realizes the front and back movement of support body by electric linear guide rail, first electric lifting rod realizes roof lifting, second electric lifting rod cooperates with cross telescopic frame and telescopic rod to realize anodic oxidation hanger lifting and position adjustment, position adjustment is flexible, and different processing needs can be adapted.

According to the intelligent optimization method for the hot working technological parameters of the high-thermal-conductivity aluminum alloy component, multi-dimensional input feature data of a target component are obtained; based on a chemical component spectral analysis report of a target aluminum alloy, mass percent data of key alloy elements are extracted to form a vector, and the key alloy elements comprise, by mass percent, 0.05%-0.50% of Si, 0.20%-1.00% of Mg, 0.50%-2.00% of Fe, 0.05%-0.25% of B and 0.05%-0.40% of rare earth element RE; according to the technical scheme, silicon (Si is smaller than or equal to 0.5%) and the total amount of alloy elements are strictly controlled, the heat treatment process is optimized, the heat conductivity of the material is stably larger than or equal to 200 W / m.K and remarkably higher than that of a conventional die-casting aluminum alloy (generally smaller than 150 W / m.K), the heat dissipation requirement of a high-end precise device can be met, and the service life of the die-casting aluminum alloy is prolonged. The extremely low silicon content of the aluminum alloy fundamentally eliminates the defects of black spots, lime or uneven coloring and the like caused by silicon phase enrichment during anodic oxidation, a colorful oxidized surface which is uniform and bright in color and compact in film layer can be obtained, and the attractiveness and the additional value of a product are greatly improved.

The utility model discloses a handle structure, which belongs to the technical field of handle structures and comprises a handle body, two ends of the handle body are respectively provided with a plug core part and an electroplating part, rib parts are symmetrically arranged in the handle body, one end of each rib part is connected with the inner wall of the handle body, and an installation space is formed between the other end of each rib part and the inner wall of the handle body. The electroplated part is arranged in the installation space, the plug core part is arranged between the two rib parts, the rib parts are arranged in the handle structure, one end of each rib part is connected with the inner wall of the handle body, the installation space exists between the other end of each rib part and the inner wall of the handle body, the electroplated part is installed in the installation space, and the plug core part is arranged between the two rib parts. The handle structure can effectively solve the problem of watermarks on the anodic oxidation appearance of an extruded material, the plug core pieces are used at the two ends of the handle body, and the material cost can be reduced while the function is met.

The invention discloses a multi-layer aluminum core copper-clad plate based on a plasma anodic oxidation coating and further discloses a preparation method of the copper-clad plate, and the preparation method comprises the following steps: pretreating an aluminum core; performing plasma anodic oxidation by adopting a pulse power supply, and generating an aluminum oxide ceramic insulating layer on the surface of the aluminum core in situ; positioning and drilling the aluminum core, and sealing the hole with insulating resin; adhering copper foils to the two sides of the aluminum core to form a double-sided plasma anodic oxidation copper-clad aluminum plate; performing pattern manufacturing on the surface of the double-sided plasma anodic oxidation copper-clad aluminum plate, overlapping multiple layers of copper-clad aluminum plates, and performing hot-pressing curing; carrying out through hole processing and hole metallization on the copper-clad plate subjected to multi-layer lamination; and performing pattern manufacturing and anti-oxidation treatment on the surface of the copper-clad plate to obtain the multi-layer aluminum core copper-clad plate. The multi-layer aluminum core copper-clad plate has excellent mechanical reliability, insulation stability, longitudinal heat conduction efficiency and high-frequency signal transmission performance.

The utility model relates to the field of pistons, in particular to a composite surface treatment piston. The composite surface treatment piston comprises a head part, wherein the head part is covered with a hard anodic oxidation layer; the main body is covered with a black phosphate coating; and the skirt part is covered with a graphite layer. The composite surface treatment piston is provided with various coatings, so that the performance of each part of the piston can be enhanced as required, and the durability of the piston is improved.

The utility model provides an aluminum alloy part oxidation device, belongs to the technical field of material surface treatment, and aims to solve the problem that the oxidation effect of an aluminum alloy part is influenced by non-uniform electrolyte caused by effective component sedimentation due to long-time standing of the electrolyte of the conventional aluminum alloy part oxidation device in the anodic oxidation process. The electrolyte box is of a rectangular box-shaped structure; the gear set shell is fixedly arranged at the upper end of the front end surface of the electrolyte box; the reciprocating driving motor is fixedly arranged on the left end face of the gear set shell; the spring limiting blocks are arranged on the upper end surfaces of the two cross beams of the pendant bracket; the reciprocating rotating assembly is arranged in the gear set shell; and the hanging frame fixing assembly is arranged at the position of the hanging piece support. The device has the comprehensive advantages that the electrolyte components are kept stable and uniform, and the oxidation process is faster and more efficient.

The application discloses a surface treatment process of an aluminum alloy profile and belongs to the technical field of aluminum alloy processing. The aluminum alloy profile is immersed into an oil removal cleaning solution, and the pretreatment of the aluminum alloy profile is completed under the assistance of ultrasonic waves. The pretreated aluminum alloy profile is used as an anode, and anodic oxidation treatment is carried out under the assistance of ultrasonic waves and constant voltage. The anodic oxidation treatment is stopped when particles are generated in an electrolyte through a liquid particle counting system. The aluminum alloy profile after the anodic oxidation treatment and cleaning is used as a cathode to carry out electrophoretic treatment. Then, the cathode is taken out and washed with clean water for 3-5 times. After being dried at room temperature, the aluminum alloy profile is dried at 140 DEG C for 30 min, and the electrophoretic coating is completed. Fluorine atoms are introduced into the electrophoretic paint during preparation, which is helpful to increase the corrosion resistance and wear resistance of the paint film. The liquid particle counting system is used for monitoring during the anodic oxidation treatment, so that the anodic oxidation is prevented from being excessive, and the paint film with better adhesion and smoothness is formed.

The invention discloses an anodic oxidation reworking method after milling of a metal middle frame, and belongs to the technical field of surface treatment of metal structural parts. According to the scheme, the conductive adhesive is dispensed at the two ends of the broken bridge of the middle frame product with the anodic oxidation appearance defect so as to connect the two sides of the broken bridge, the shielding adhesive is dispensed on the surface of the cured conductive adhesive, after the shielding adhesive is cured, the original anodic oxidation layer is removed, then anodic oxidation treatment is conducted again, and a new anodic oxidation layer is formed. And finally, removing the shielding adhesive and the conductive adhesive. According to the scheme, a conductive adhesive and shielding adhesive combined process is adopted, a traditional titanium accessory connecting method is replaced, the problem that the anodic oxidation reworking appearance is poor due to the fact that an electrical broken bridge is formed after the metal middle frame is broken is accurately solved, and the method has the advantages of being high in universality, low in cost, capable of improving the yield, short in development period, high in reliability and the like.

The invention provides an anodic oxidation film layer control method based on electrochemical regulation and control. The method comprises the steps that the metal ion concentration in anodic oxidation electrolyte is monitored in real time; adjusting electrolyte components based on the real-time concentration data; performing forced convection circulation on the electrolyte with optimized components in the vertical direction by driving the electrolyte, and applying a pre-polarization voltage lower than a formal oxidation stage; the method comprises the following steps: immersing a to-be-treated workpiece into an electrolyte with activated components, and applying electrochemical regulation and control based on a four-electrode mode; monitoring the growth rate of the preliminary oxidation film layer in real time; and optimal process parameters are predicted based on the growth rate data, and electrochemical regulation and control parameters are adjusted according to the optimal process parameters, so that the preliminary oxidation film layer continues to grow, and the anodic oxidation film layer is formed. Effective electrochemical driving force applied to the surface of the workpiece can be accurately controlled, control errors caused by solution resistance and temperature drift are overcome, and therefore high-precision and high-stability control over the oxidation film growth process is achieved.

This invention discloses a method for preparing a polyaniline-titanium dioxide nanotube array composite electrode, comprising the following steps: (1) anodizing a titanium sheet to obtain a titanium dioxide nanotube array; (2) preparing a polyaniline solution through a polymerization reaction; (3) loading the polyaniline solution onto the surface of the titanium dioxide nanotube array through dip-coating, and drying to obtain the polyaniline-titanium dioxide nanotube array composite electrode. The preparation method of this invention can form nanotube clusters, strengthening the bonding force between the nanotubes and the substrate, and the formed nanotubes are more regular; moreover, the prepared nanotube array composite electrode can significantly improve the electrochemical and mechanical stability of polyaniline, thereby obtaining a larger capacitance and long-term charge-discharge cycle stability, and can also improve the conductivity of the TiO2 nanotube array.

A method for creating oil-filled porous anodic oxide coatings for stainless steel is disclosed. The coating has anti-corrosion and omniphobic properties to resist both atmospheric conditions, or other conditions with exposure to vapor, and wet conditions, in which the coating is exposed to and / or immersed in liquid. The anodic oxide coating of the present invention can be made by the steps of cleaning and / or electropolishing a steel substrate, applying anodic oxidation to the steel substrate, washing the steel substrate in an organic solvent, and annealing the substrate at high temperature. To fill the porous coating with an oil, a solvent exchange method may be applied.

The application discloses a manufacturing method of a non-stick pot with wear-resistant and antibacterial coating, which comprises the following steps: S1, extruding an aluminum or aluminum alloy base material to form a non-stick pot blank; S2, placing the non-stick pot blank into a centrifugal steel shot machine, and performing a shot blasting roughening treatment by using silicon carbide ceramic as a shot, so that a concave-convex protruding structure is formed on the inner surface of the pot; S3, cleaning the non-stick pot blank, and then performing a hard anodic oxidation treatment and cleaning; and S4, performing a spraying operation of the wear-resistant and antibacterial coating on the inner surface of the non-stick pot blank, and then baking at a temperature of 320-410 DEG C for 10-20 min to obtain the non-stick pot with the wear-resistant and antibacterial coating. The non-stick pot prepared by the method has excellent bonding force between the coating material and the non-stick pot blank, and has good wear resistance, antibacterial property, thermal stability and chemical stability.

The invention relates to the technical field of surface treatment, and discloses an aluminum alloy surface treatment method and an aluminum alloy material.The aluminum alloy surface treatment method comprises the steps that S1, an aluminum alloy matrix is subjected to deoiling, alkali washing and electric polishing, and a pretreated aluminum alloy matrix is obtained; and S2, a porous aluminum oxide layer is formed on the surface of the pretreated aluminum alloy base body through laser combined machining, a boss dot matrix is formed at an orifice of the porous aluminum oxide layer through reverse dissolution and heterogeneous particle deposition, a composite aluminum alloy base body is obtained, and laser combined machining is combined machining of laser etching and anodic oxidation. According to the aluminum alloy surface treatment method and the aluminum alloy material, the meshing effect of pore channels and bosses is formed, surface energy and acid-base Lewis sites are regulated and controlled through component and crystalline phase heterogeneous sites, interface chemical compatibility and heat and humidity resistance stability are improved, meanwhile, pore blocking caused by a continuous film is avoided, and therefore the specific surface area, interface energy and stability are improved, and the service life of the aluminum alloy material is prolonged. And the aluminum alloy surface with high bonding strength is formed.

The utility model belongs to the technical field of automobile brake systems, and particularly relates to a light-weight automobile brake disc. The outer side of the disc body is provided with an arc-shaped groove and embedded radiating fins, and the groove is filled with a heat-conducting silica gel layer; a mounting hole is formed in the center of the disc body, honeycomb lightening holes are formed around the disc body, and a tungsten carbide coating is sprayed on the inner wall; a first reinforcing rib and a second reinforcing rib are arranged on the two sides of the disc body and are welded and fixed through a connecting plate. The disc body is made of an aluminum alloy base material, the surface of the disc body is subjected to anodic oxidation and graphene coating treatment, and the disc body has both light weight and corrosion resistance. By optimizing the structural design, the weight is remarkably reduced while the strength is guaranteed, the heat dissipation performance is improved, and the automobile brake pad is suitable for a high-performance vehicle brake system and meets the requirements of modern automobiles for light weight and efficient heat dissipation.