373 results about "Anodizing" patented technology

The electrochemical mechanical polishing method and device are characterized in that a workpiece clamping device is adjusted according to the size of the semiconductor wafer and is adsorbed on a pressurizing device, and the semiconductor wafer is connected to a positive electrode of a power supply through a conducting ring to serve as an anode of an electrolysis system; the fixed abrasive pad is fixed on the polishing disc through a conductive adhesive and is connected to a power supply cathode through a conductive ring to serve as a cathode of the electrolysis system; during polishing, a polishing solution is connected with a conductive adhesive for fixing the polishing pad through a through hole in the fixed abrasive pad to form an electrolytic tank path, chemical oxidation and anodic oxidation are carried out on the surface of the third-generation semiconductor wafer during polishing to form a passivation oxide layer with low hardness, and valleys of the passivation oxide layer are passivated and protected. And the peak is quickly removed by the fixed abrasive, so that a polishing mode of anodizing and online removing the surface of the third-generation semiconductor wafer is realized. The method has the advantages of high abrasive utilization rate, high material removal rate, good surface quality, recycling of the polishing solution and the like.

The invention relates to the technical field of plasmon nano photonics, and discloses a preparation method of a novel gradient metasurface, which comprises the following steps: pretreating an aluminum sheet; prefabricating a pattern on the aluminum sheet and performing anodic oxidation; the preparation method comprises the following steps: preparing an anodized aluminum oxide thin film, fixing the anodized aluminum oxide thin film on a glass sheet, placing the glass sheet fixed with the anodized aluminum oxide thin film in chambering liquid, and taking out the glass sheet to obtain the novel gradient metasurface. By adopting electrochemical and chemical corrosion methods, for gradient metasurfaces with different areas, different sizes and different directions, the diversity of adjustable parameters of the nano array can be enriched, the time is shortened, the cost is reduced, the manufacturing cost and time are reduced to a great extent, and the production efficiency is remarkably improved.

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 a method for manufacture sintered anode aluminum foil. Ultrasound was used to change the stacking structure of aluminum powder on the surface of the anode aluminum foil, allowing aluminum powder particles of different sizes to form a gradient distribution in the thickness of the aluminum powder layer, with a gradual decrease in average particle size from bottom to top, larger voids in the lower layer, and denser and larger surface area in the upper layer. Therefore, the specific capacitance and the withstand voltage were improved. By introducing ultrasonic vibration, this invention can simultaneously enhance the specific capacitance and withstand voltage of anode aluminum foil after high-temperature sintering and anodizing, while traditional sintering methods cannot obtain high specific capacitance and withstand voltage performance simultaneously.

The invention discloses a processing technology of a double-layer hard anodic oxide film on a metal surface, relates to the technical field of aluminum alloy anodic oxidation, and provides the processing technology of the double-layer hard anodic oxide film on the metal surface in order to improve the surface hardness and high temperature resistance of aluminum alloy. The anodic oxide layers with different pores are prepared through different electrolyte components, the primary anodic oxide layer serves as a bottom layer, thermal stress between an aluminum alloy body and the oxide layers due to different thermal expansion coefficients is effectively reduced, expansion caused by thermal shock is relieved, the secondary anodic oxide layer on the surface layer has a small pore diameter, and the thermal shock resistance of the aluminum alloy body is improved. And the carbon fibers are subjected to modification treatment, so that the aluminum alloy material has relatively high hardness and a better corrosion-resistant effect, and the applicability of the aluminum alloy material to various environments is effectively improved.

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.

The invention relates to the technical field of power electronic components, and discloses a fast charge-discharge aluminum electrolytic capacitor and a preparation method thereof. The fast charge and discharge aluminum electrolytic capacitor comprises a high-purity aluminum foil subjected to aluminum chloride-hydrochloric acid etching and oxalic acid-tartaric acid oxidation treatment, a porous electrolyte layer with the thickness of 0.015-0.020 mm, a composite organic-inorganic electrolyte and an aluminum shell packaging structure, the preparation method comprises the steps of aluminum foil processing, electrolyte cutting, winding and assembling, vacuum infusion under-0.09 to-0.095 MPa, staged aging charging under the condition of 70-90 DEG C, and finally packaging and forming. According to the method, a compact oxidation film is formed through anodic oxidation, the proportion of gamma-butyrolactone in the electrolyte is optimized, the staged voltage aging and vacuum infusion process is implemented, and the fast charging performance, high-temperature stability and overall reliability of the aluminum electrolytic capacitor are synergistically improved from the material level and the process level.

The invention provides an aluminum or aluminum alloy anodic oxidation method and a metal workpiece. The anodic oxidation method comprises the steps that a metal matrix of aluminum or aluminum alloy is subjected to first-section anodic oxidation, a first layer of anodic oxidation film is formed on the surface of the metal matrix, the voltage of the first-section anodic oxidation ranges from 19 V to 27 V, the stable current density of the first-section anodic oxidation is I1, the peak current density of the first-section anodic oxidation is I2, and I2 is larger than 1.5 I1 and smaller than 2I1; and the metal matrix is subjected to second-section anodic oxidation, a second layer of anodic oxidation film is formed on the surface of the metal matrix, the second layer of anodic oxidation film is located between the metal matrix and the first layer of anodic oxidation film, and the voltage of the second-section anodic oxidation is 15-18 V. According to the method, sectional anodic oxidation is utilized, the internal stress and thermal stress of the anodic oxide film are reduced, the anodic oxide film low in cracking risk and high in density is formed, and the method can be suitable for base materials of complex structures.

The invention belongs to the technical field of power transmission, and relates to an anti-icing micro-nano gradient modified high-voltage wire and a preparation method thereof. The power transmission line comprises a power transmission line and a nano-scale modification layer wrapping the surface of the power transmission line, and the power transmission line is formed by twisting a plurality of metal monofilaments with micron-scale structures on the surfaces; the metal monofilament has a circular cross section, a square cross section or a special-shaped cross section; the preparation method of the metal monofilament surface micron size structure comprises the steps of sand blasting, anodic oxidation or wiredrawing nanoimprint; the micron-sized structure comprises a frame and micropores enclosed by the frame, the micropores are inverted pyramid-shaped, honeycomb-shaped, inverted cone-shaped or triangular pyramid-shaped, the range of an included angle between the frame and the metal monofilament is 110-130 degrees, the ratio of the surface area of the micropores to the total surface area of the metal monofilament is greater than 90%, and the length and the width of the micropores are between 5-800 microns. The maintenance frequency can be reduced, the microstructure is protected, the service life of the microstructure is prolonged, and meanwhile the super-hydrophobic, super-oleophobic, anti-ice, anti-freezing rain, anti-rime and anti-dirt-accumulation functions are achieved.

The invention discloses a preparation process of an oxidation film on the inner wall of a precise aluminum pipe, which comprises the following steps: step 1, oxidizing the aluminum pipe by adopting a semi-hard anodic oxidation electrolyte and a pulse current with the density of 1.5-2A / dm < 2 > in a bath solution temperature environment of 15-20 DEG C, the semi-hard anodic oxidation electrolyte comprises sulfuric acid with the concentration of 12%-15%, oxalic acid with the concentration of 2%-3% and glycolic acid with the concentration of 0.5%-1%. Step 2, carrying out hole sealing treatment on the oxide film on the inner wall of the aluminum pipe by using a nickel salt-containing medium-temperature hole sealing agent; 3, the aluminum pipe is soaked in methyl phenyl silicone resin, and meanwhile the permeability of the methyl phenyl silicone resin is improved through ultrasonic-assisted permeation; and 4, the aluminum pipe is baked, so that the methyl phenyl silicone resin permeates into the oxidation film on the inner wall of the aluminum pipe to form the composite coating. By adopting semi-hard anodic oxidation, the requirement of 3000 times of friction wear resistance of the selfie telescopic rod can be met, the cost is obviously lower than that of hard anodic oxidation, and mass production is facilitated.

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 invention provides an anodic oxidation solution. The anodic oxidation solution comprises the following components of 5 g / L to 20 g / L of citric acid, 20 g / L to 50 g / L of oxalic acid, 4 g / L to 7 g / L of inorganic cerium salt, 5 g / L to 9 g / L of triethanolamine, 1 g / L to 3 g / L of aluminum isopropoxide and 5 g / L to 7 g / L of 3-methyl-2-pentene-4-alkyne-1-alcohol. The invention further provides an anodic oxidation method suitable for the aluminum material, according to the anodic oxidation method, the anodic oxidation liquid is adopted for oxidation, the oxidation temperature is 8-12 DEG C, the oxidation current density is 1-5 A / dm < 2 >, the oxidation voltage is 30-50 V, and the oxidation time is 20-30 min. The anodic oxidation liquid is matched with oxidation parameters, so that the film forming speed of an oxidation film is increased, and the voltage resistance of a product is improved.

The invention relates to a precise welding method for dense welding seams of a complex structure, and relates to the technical field of heat exchange equipment manufacturing. The process comprises the steps of welding of the interior of a core body, surface treatment of a brazing seam and welding of an end socket. The inner part of the core body adopts BNi-2 brazing filler metal to perform vacuum brazing welding on the assembled core body, the surface treatment of the welding seam is that local anodic oxidation treatment is performed on a brazing seam area after welding, a NiO protective layer is selectively generated, and the welding of the end socket is that silver-copper-titanium active brazing filler metal is pre-arranged in a connecting area of the core body and the end socket. And the lower melting point can prevent a brazing seam in the core body from melting. By selecting brazing filler metal components, welding parameters and a post-treatment process, the problems that in traditional brazing, interface brittle phases, pore defects, weld joints are prone to corrosion and the like are solved, the sealing performance of joints is remarkably improved, and the method is suitable for manufacturing of high-performance heat exchangers in the fields of aviation, chemical engineering and the like.

The invention relates to the technical field of metal part anodic oxidation process production equipment, in particular to an anodic oxidation hanging tool, an up-and-down hanging system and a workpiece up-and-down hanging method. The anodizing hanging tool comprises a front supporting mechanism, a rear supporting mechanism and a side supporting mechanism which are used for supporting the front portion, the rear portion, the left side and the right side of a workpiece correspondingly. The front supporting mechanism comprises a plurality of front hooks; the rear supporting mechanism comprises a rear elastic piece and a rear hook, the fixed end of the rear elastic piece is fixed to the framework, and the rear hook is installed at the free end of the rear elastic piece. The side supporting mechanism comprises side elastic pieces and side hooks, the fixed ends of the side elastic pieces are fixed to the rear elastic pieces, and the side hooks are installed at the free ends of the side elastic pieces. Aiming at the hanger, the invention further provides a hanger loading and unloading system and a hanger loading and unloading method of the system. According to the anodic oxidation hanging tool, the workpiece can be fixed only through the metal elastic pieces. And meanwhile, the upper and lower hanging tool system does not need a complicated driving mechanism to drive the metal elastic sheet, so that the complexity of the hanging tool and the upper and lower hanging tool system is greatly reduced.

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 utility model relates to the technical field of aluminum alloy processing, in particular to an oxidation device for aluminum alloy anodizing. The oxidation device for aluminum alloy anodizing comprises an anodizing box, a supporting frame is arranged at the top of the anodizing box, an electric telescopic rod is arranged at the top of the supporting frame, the telescopic end of the electric telescopic rod penetrates through the bottom of the supporting frame and is connected with a box cover, and the box cover is located at the top of the anodizing box. A threaded hole is formed in the bottom of the box cover, a second anti-skid gasket is arranged at the bottom of the box cover, the second anti-skid gasket is located on the outer ring of the threaded hole, and mounting holes are evenly formed in the inner side wall of the threaded hole; the connecting ring can be conveniently controlled to rotate through the vertical groove so as to drive the screw rod to rotate, after the screw rod is spirally separated from the threaded hole in the bottom of the box cover, the fixing rope can be taken down from the lower portion of the box cover, and therefore the effect that the fixing rope is rapidly disassembled and assembled by a single person is achieved.

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 disclosure relates to non-aqueous aluminum anodizing. A component for an electronic device may include a component including a first metal and a second metal diffusion bonded to the first metal. The first metal may be aluminum, and the second metal may be different from the first metal. A porous alumina layer may overlay a portion of the first metal and may be disposed adjacent an interface between the first metal and the second metal. The component may also include a non-metallic material bonded to the component and extending into pores defined by the porous alumina layer.

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 invention provides a surface treatment process which is used for carrying out surface treatment on a workpiece with a sand blasting surface and a highlight surface, and the surface treatment process comprises the following steps: carrying out anodic oxidation treatment on the sand blasting surface; carrying out highlight wire drawing treatment on the highlight surface through the passivated cutter, and carrying out anodic film removal treatment on the sand blasting surface subjected to anodic oxidation treatment so as to clean a residual oxidation layer; performing anode dyeing treatment on the sand blasting surface subjected to anode film removal treatment and the highlight surface subjected to highlight wiredrawing treatment so as to obtain the highlight surface and the sand blasting surface which are consistent in color; the sandblasting surface is firstly subjected to anodic oxidation, then the anodic film is removed, and finally the sandblasting surface and the highlight surface are subjected to anodic dyeing together, so that the sandblasting surface and the highlight surface can achieve the effect of consistent color after final dyeing, meanwhile, the highlight surface is subjected to highlight wiredrawing treatment by adopting a passivated cutter, the glossiness of the highlight surface is improved, and the service life of the highlight surface is prolonged. The highlight effect of the highlight surface is guaranteed on the basis that the gravel texture of the sand blasting surface is guaranteed.

The utility model discloses a deep threaded hole protection clamp applied to anodic oxidation treatment, which comprises a body and an operating mechanism, a vent groove is arranged in the middle of the body and used for natural circulation of solution or overflow of gas at a deep hole, and external threads are arranged on the outer side of the body along the circumferential direction; the operating mechanism comprises a first operating rod and a second operating rod, one end of the first operating rod is hinged to one end of the second operating rod, and a spring is arranged between the first operating rod and the second operating rod; the free ends of the first operating rod and the second operating rod extend into the vent groove and are engaged and clamped with the inner wall of the vent groove; the body is made of polytetrafluoroethylene materials, and the first operating rod and the second operating rod are respectively made of aluminum alloy. According to the utility model, low-cost and high-efficiency protection is carried out on the threaded area, which does not need anodizing, at the deep hole of the part through the protection clamp. Meanwhile, the possibility that a surface film layer is damaged due to machining operation after the part is oxidized is eliminated, the air bag phenomenon existing in the anodic oxidation process of the deep-hole threaded part is reduced, the field production efficiency is greatly improved, the production cost is saved, and good practicability is achieved.

The invention proposes a method for hard anodizing of aluminum alloy, comprising the following steps: degreasing treatment, alkaline etching treatment, polishing treatment, hard anodizing treatment and sealing treatment. The hard anodizing treatment is to place the workpiece after the polishing treatment in an electrolytic bath liquid, the bath liquid temperature is ‑3-2°C, and the constant current method is used to supply electricity, and the current density is 0.5-1.8A / dm 2 The electrolytic bath solution contains 260-280 g / L sulfuric acid, 50-60 g / L glycerol and 5-10 g / L oxalic acid. The hard anodized film layer generated by the present invention has a thickness of more than 40 μm, a hardness of ≥300 HV, and an ablation rate of the product of about 3‰.

The utility model provides a drying box for anodic oxidation, and relates to the technical field of anodic oxidation drying. An aluminum plate inlet and an aluminum plate outlet are symmetrically formed in the aluminum plate anodic oxidation drying box main body, and a top cover is slidably connected to the top of the aluminum plate anodic oxidation drying box main body; sliding guide rails are symmetrically and fixedly connected to the aluminum plate anodic oxidation drying box body, and gear racks are fixedly connected to the aluminum plate anodic oxidation drying box body. Electric heating plates are symmetrically and fixedly connected to the interior of the aluminum plate anodic oxidation drying box body. A motor drives a threaded adjusting shaft to rotate, a movable adjusting frame at the bottom drives an anodized aluminum plate to rotate for drying work, a limiting spring pushes a movable block to limit the top of the anodized aluminum plate, the aluminum plate is prevented from being damaged by collision, and the problem that in the prior art, in the aluminum plate turnover process, the aluminum plate is not fixed, and the aluminum plate cannot be fixed is solved. And the production efficiency of anodic oxidation on the surface of the aluminum material is relatively low.

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 discloses a construction method of a micro-channel on the surface of an aluminum coating, an anodic oxidation electrolyte of the micro-channel and application of the anodic oxidation electrolyte. The solute of the anodic oxidation electrolyte comprises a film-forming agent, a film-forming accelerant and a film-forming auxiliary agent; the film-forming agent comprises strong alkali, the film-forming accelerant comprises alkali metal pyrophosphate and / or alkali metal polyphosphate, and the film-forming auxiliary agent comprises alkali metal weak acid salt. The construction method comprises the following steps: enabling the aluminum surface to be in contact with the anodic oxidation electrolyte; and the aluminum surface serves as an anode, current is applied to the aluminum surface for anodic oxidation, and the micro-channel is formed. According to the anodic oxidation electrolyte and the construction method of the aluminum surface micro-channel provided by the invention, an ordered, continuous, dense and complete micro-channel hole structure can be formed on the aluminum surface through the electrolytic oxidation effect of the strong alkaline electrolyte, and a microstructure which is extremely suitable for boiling heat transfer of liquid on the surface is formed; therefore, the boiling heat transfer efficiency of the aluminum surface is obviously improved.

A method of manufacturing a structure having anodized parts includes: forming a bottom metal layer on a substrate; forming a top metal layer on the bottom metal layer; forming a mask layer on the top metal layer to expose a portion of a top surface of the top metal layer; etching the top metal layer through the mask layer until a top surface of the bottom metal layer is exposed, wherein an etch selectivity of the top metal layer and the bottom metal layer is greater than 2.0; anodizing the bottom metal layer through the mask layer to form an anodized segment; and removing the mask layer after the anodizing.