475results about "Surface reaction electrolytic coating" patented technology

The invention discloses an environment-friendly electrolyte for anodic oxidation of titanium and titanium alloy workpieces and an electrolytic coloring method. The electrolyte comprises 8-12 parts of lactic acid, 5-10 parts of sodium tartrate, 2-5 parts of sodium bicarbonate and the balance of deionized water. The electrolytic coloring method comprises the steps of pretreatment, anodic oxidation coloring and aftertreatment. The pretreatment comprises alkali washing oil removal, water washing and laser treatment; and an electrolyte mixed by 8-12 parts of lactic acid, 5-10 parts of sodium tartrate, 2-5 parts of sodium bicarbonate and the balance of deionized water is used for anodic oxidation coloring. The post-treatment comprises sealing treatment and drying. According to the technical scheme, the technical problems that the anodic oxidation coloring technology is completely free of fluorine, low in toxicity and safe to operate, and the oxidation waste liquid is free of pollution and easy to treat can be solved, existing pretreatment steps can be simplified, and meanwhile uniform coloring is achieved.

The invention discloses an anode material for adipic acid monoester electrolysis and a preparation method of the anode material, the electrode solves the key problems that a platinum layer is easy to fall off, the catalytic activity is low, the organic matter poisoning resistance is poor and the like of a traditional titanium platinum-plated electrode through multi-scale interface strengthening and nano structure regulation and control; the preparation method comprises the following core steps: constructing a porous ZrO2-TiO2 composite oxide layer on the surface of a titanium substrate by adopting a micro-arc oxidation-hydrothermal composite process, and generating platinum nanoparticles in situ to pre-fill pores, so that the anchoring effect of a platinum layer is remarkably enhanced; depositing a platinum / carbon nano tube (Pt / CNT) composite catalyst layer on the surface of the oxide layer through a pulse-ultrasonic synergistic electroplating technology, wherein the carbon nano tube is used as a conductive framework to inhibit platinum agglomeration; through vacuum annealing and electrochemical activation treatment, the interface bonding force and active site exposure are further optimized; the electrode shows excellent performance in an adipic acid monoester electrolysis system, and efficient electrocatalytic conversion from adipic acid monomethyl ester to dimethyl sebacate is achieved.

The utility model provides a formation tank aluminum foil cleaning device and a formation device, and belongs to the technical field of electrode foil formation equipment. When an aluminum foil penetrates through the lower portion of a cleaning press roller, pure water is injected into a cleaning tank, the cleaning press roller presses the aluminum foil into the cleaning tank, and the aluminum foil is cleaned with pure water in the forward movement process of the aluminum foil; the cleaning compression roller is provided with a through cavity, pure water enters the cleaning compression roller, and along with rotation of the cleaning compression roller, the water comes out of the water outlet holes to repeatedly clean the surface of the aluminum foil, so that the surface of the aluminum foil is cleaned up, and tank liquid in the formation tank is not prone to being polluted; the aluminum foil sequentially penetrates through the upper portion of the first transmission roller, the lower portion of the cleaning pressing roller and the upper portion of the second transmission roller, the cleaning pressing roller is located below the first transmission roller and the second transmission roller, water obtained after cleaning flows back into the cleaning tank along with the inclination angle of the aluminum foil, and the influence of pure water on the concentration of formation liquid is reduced; and water flowing back to the cleaning tank can be recycled, so that waste is reduced.

The invention relates to an elementary substance / alloy-metal oxyhydroxide anchored noble metal single atom / cluster heterojunction catalyst. A preparation method comprises the following steps: 1) dissolving a metal salt A, urea and ammonium fluoride in deionized water to obtain a mixed solution B; 2) performing hydrothermal reaction on the mixed solution B and a carrier to obtain a primary sample 1; 3) performing high-temperature calcination on the primary sample 1 in a mixed atmosphere of hydrogen and argon to obtain a primary sample 2; and 4) putting the preliminary sample 2 into a noble metal compound C solution for vacuum impregnation, taking out the sample after impregnation, and drying to obtain the catalyst. According to the scheme, the metal salt A is used as a metal source of a simple substance / alloy, the metal salt A is subjected to hydro-thermal synthesis to form a metal hydroxide and then subjected to high-temperature calcination reduction, the metal salt A is calcined to form the simple substance / alloy, then the simple substance / alloy is soaked in the precious metal compound solution C to form a metal oxyhydroxide, and meanwhile precious metal single atoms / clusters are anchored; the prepared catalyst is high in activity, and the preparation method is simple.

The invention relates to the technical field of coating materials, and discloses a pure titanium micro-arc oxidation coating for a vacuum cup and a preparation method thereof.The preparation method comprises the following steps that surface pretreatment is conducted, specifically, a pure titanium vacuum cup inner container workpiece is sequentially subjected to degreasing, acid pickling and ultrasonic cleaning; preparing an electrolyte, namely adding 15-25 parts by weight of a silicon-containing compound, 5-12 parts by weight of metal salt, 3-8 parts by weight of an antibacterial agent and 1-5 parts by weight of a stabilizer into deionized water, and controlling the pH value to be 8.5-10.5; and performing micro-arc oxidation treatment. According to the invention, a silane compound in the micro-arc oxidation electrolyte contains a high-activity silanol group which is subjected to condensation reaction with titanium hydroxyl on the surface of a pure titanium substrate under the action of an electric field to form stable covalent bonding, so that the bonding strength of the coating and the substrate is enhanced; metal ions generated by metal salt electrolysis are co-deposited with titanium ions through plasma discharge, a composite oxide structure is constructed, and micro defects on the surface of a titanium substrate are sealed.

The invention belongs to the technical field of aluminum alloy surface treatment, and discloses an aluminum alloy micro-arc oxidation film layer with high plasma fluorination environment resistance and a preparation method thereof.The aluminum alloy serves as a matrix, the micro-arc oxidation film layer with high plasma fluorination environment resistance is formed on the surface of the matrix, the thickness of the film layer is 10-50 micrometers, the porosity is 3-5%, and the thickness of the film layer is 10-50 micrometers. The pore diameter is 0.5-1 [mu] m, and the alpha-Al2O3 accounts for 60-80%. According to the film layer, generation of more compact Al2O3 is promoted by adding zircon salt and yttrium salt, the structure and performance of the film layer are improved through introduced zirconium and yttrium elements, and the film layer has the advantages of being high in hardness, low in porosity, high in corrosion resistance and high in wear resistance.

The invention relates to the field of titanium alloy surface treatment, in particular to a preparation process of a nano-particle composite micro-arc oxidation coating suitable for a near-beta type titanium alloy. The preparation process comprises the following steps: step 1, degreasing treatment; step 2, membrane removal treatment; 3, performing nano-particle doping arc oxidation treatment to obtain a hard micro-arc oxidation film; and 4, PTFE paint film spraying treatment is conducted, and the PTFE paint film is obtained. The nano-particle composite micro-arc oxidation coating is of a double-layer structure, after nano-particle doped arc oxidation treatment, an inner-layer wear-resistant hard micro-arc oxidation film with the thickness being 20-30 microns and the average microhardness being 850 HV or above can be prepared on the near-beta-type titanium alloy, wear resistance and sufficient bearing capacity are provided for the composite coating, and by combining with an outer-layer PTFE paint film, the wear resistance of the composite coating is greatly improved. The near-beta type titanium alloy can be endowed with antifriction and wear-resistant double characteristics, a long-acting and lasting wear-resistant effect is provided, and the problem that the surface of a high-proportion beta phase in a matrix is not prone to oxidation is effectively solved.

The invention relates to the technical field of aluminum alloy anode oxide film hole sealing, in particular to a color fixing agent for an aluminum alloy anode oxide film and a preparation method of the color fixing agent. 150 parts by weight of the color fixing agent for the aluminum alloy anode oxide film comprises the following components in parts by weight: 15-25 parts by weight of organic acid, 1-3 parts by weight of a surfactant, 0.1-1 part by weight of a corrosion inhibitor, 0.1-1 part by weight of an accelerant, 1-5 parts by weight of a pH value regulator, 2-10 parts by weight of a color fixing auxiliary agent and 20-40 parts by weight of acetone. And the balance of deionized water. The color fixing agent for the aluminum alloy anode oxide film has good color fixing capacity and corrosion resistance.

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 present disclosure generally relates to materials, processes, generators, and / or systems, for generating radioisotope. The present disclosure also generally relates to ceramic materials comprising radioisotope suitable for use in a radioisotope generator. The present disclosure also generally relates to processes, generators and / or systems, for producing and capturing radioisotope. The present disclosure also generally relates to the preparation of radioisotope solutions for use in radiopharmacy and / or other clinical applications.

The invention discloses a method for preparing a porous Ti-based electrode through laser cladding composite electrochemical dealloying, which comprises the following steps: under an atmosphere protection device, preparing a copper-titanium alloy cladding layer on a substrate by adopting a laser cladding technology, cutting the cladding layer and the substrate to obtain a precursor alloy material, and preparing a porous Ti-based electrode on the precursor alloy material, and finally, carrying out electrochemical dealloying treatment on the precursor alloy material by adopting a corrosive agent, selectively dissolving the element copper, and finally obtaining the porous Ti-based electrode material. According to the method, two surface modification technologies of laser cladding and dealloying are combined, the coating and the matrix can be metallurgically bonded through the laser cladding technology, the interface resistance is low, the structure is compact, and machining is fast; according to the electrochemical dealloying, components with relatively high activity in the coating are selectively dissolved to form a porous structure; the electrochemical dealloying processing technology is simple, the generated porous structure has high porosity and large specific surface area, a large number of catalytic active sites can be provided, meanwhile, the components, the structure and the size are easy to adjust, and therefore different requirements are met.

The invention discloses a post-treatment liquid and application thereof in an anode foil formation post-treatment process, and the post-treatment liquid comprises the following components in percentage by mass: 0.1-5% of a main film-forming agent, 0.05-3% of a synergistic stabilizer and the balance of a solvent, the main film-forming agent is selected from at least one of a waterborne polyurethane emulsion and a silane coupling agent; the synergistic stabilizer is selected from at least one of organophosphate, molybdate and tungstate. The main film-forming agent and the synergistic stabilizer are compounded to obtain the post-treatment liquid, on one hand, the synergistic stabilizer is firmly combined with an aluminum oxide substrate to carry out deep passivation treatment on an oxidation film on the surface of the anode foil, and on the other hand, the synergistic stabilizer is subjected to network crosslinking with a hydrophobic protection layer formed by the main film-forming agent; the three-dimensional composite protective film can effectively isolate water molecules, repair microdefects on the surface of an oxidation film, prevent the phenomena of specific volume attenuation, leakage current increase and the like of the anode foil, and improve the long-term working reliability of the capacitor.

The invention discloses a medical titanium alloy surface modified coating for bone implantation, which is prepared by the following steps: step (1) plasma-assisted nitriding pretreatment: placing a titanium alloy matrix in a vacuum chamber, introducing high-purity nitrogen, hydrogen and argon mixed gas, maintaining the air pressure at 0.15-2.0 Pa, applying-50 to-400 V pulsed bias to the matrix, performing plasma nitriding for 45-90 minutes at the temperature of 450-600 DEG C, and performing plasma nitriding treatment to obtain a titanium alloy surface modified coating; forming a gradient nitriding layer; according to the medical titanium alloy surface modification coating for bone implantation provided by the invention, nitriding reinforcement of a matrix, micro-arc oxidation construction of micropores and anodic oxidation growth of a nano structure are combined, so that the problems that a coating in a single technology is weak in binding force and the nano structure is easy to fall off are solved.

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 invention relates to the technical field of hole sealing reagents, in particular to a medium-temperature nickel-free hole sealing agent and a preparation method and application thereof. The invention provides a nickel-free hole sealing treatment fluid, which comprises the following components by mass concentration: 0.1-30 g / L of a main hole sealing agent; 0.01 to 30 g / L of polyol fatty acid ester; 0.1 g / L to 10 g / L of an accelerant; a pH buffer agent is 0.05 to 5 g / L; wherein the main hole sealing agent comprises alkali metal salt and / or alkaline earth metal salt and lays a hole sealing core foundation; the polyol fatty acid ester is used as a coalescing agent and can form an organic film on the outer surface of a film layer to further obstruct a medium and improve the smoothness; the accelerant can further improve the corrosion resistance and the color fixing property; and the pH buffering agent ensures that the functions of all the components are fully exerted. All the components of the treating fluid cooperate with one another, so that the hole sealing quality, the salt mist tolerance and the color fixing performance of the treating fluid can be comparable with those of a commercially available nickel-containing hole sealing agent, and the treating fluid shows excellent comprehensive performance.

The invention belongs to the technical field of capacitor electrode foil manufacturing, and discloses a capacitor formed foil multi-stage oxidation treatment device and a capacitor formed foil multi-stage oxidation treatment process, the device comprises multi-stage formation tanks which are arranged in sequence, cleaning mechanisms are arranged among the multi-stage formation tanks, the device further comprises a transmission mechanism used for transmitting formed foil, and the transmission mechanism comprises transmission rollers. The transmission rollers are arranged in an up-and-down staggered mode, and the formed foil sequentially penetrates through the transmission rollers; the head end of the formed foil is wound around the driving roller, and the driving roller is used for winding and tightening the formed foil; the inclining assembly is used for inclining the transmission roller and the driving roller; according to the scheme, the transmission roller and the driving roller drive formed foil to incline through the inclination assembly, so that water and formed liquid flow from high to low and are prevented from being accumulated on the two sides of the transmission roller; the problem that water accumulates on the two sides of a transmission roller in an existing formed foil cleaning device is solved.

The present disclosure relates to an accelerator lead-out window and a preparation method thereof, wherein an overall structure of the accelerator lead-out window is integrally formed by adopting an additive manufacturing method; a window film is made of titanium alloy, and each component ratio is calculated by a weight percentage, wherein Al:4.5-7.5%, Mo:4.1-6.9%, V:4.1-6.9%, Nb:3.1-4.5%, Cr 1.5-3.5%, Ta:0.5-1.5%, and the remaining amount is titanium and other unavoidable elements. A window frame is made of aluminum alloy, and each component ratio is calculated by a weight percentage, wherein Zn:5.1-6.9%, Mg:2.1-3.9%, Cu:1.2-3.9%, Cr:0.18-0.28%, Fe≤0.30%, Si≤0.15%, Ti≤0.15%, Mn≤0.10%, and the remaining amount is Al and other unavoidable elements.

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 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.

A method for decorating an external part (10) for horology, jewellery or fashion accessories, including the steps of: forming a first interference (110) layer of titanium oxide over the entire decorative face (101) of a titanium substrate (100) by anodising the decorative face (101) at a voltage V1; machining a portion of the first interference layer (110) so as to form at least one opening (111) leading to a portion of the decorative face (101); and forming a second interference layer (120) of titanium oxide by anodising the portion at a voltage V2 lower than voltage V1.

A head unit for electrochemical treatment of a surface including a handle having an output tube and a vacuum tube. The output tube and the vacuum tube configured to couple the handle to a portable cart. The head unit including a body coupled to the handle and an electrode disposed within the body and coupled to the output tube and the vacuum tube. The electrode including a plurality of output channels for outputting an electrochemical solution and a plurality of vacuum channels for vacuuming the electrochemical solution outputted from the plurality of output channels. Each of the plurality of output channels is disposed proximate to at least one of the plurality of vacuum channels and the electrode is fluidly coupled to the output tube to receive the electrochemical solution from the output tube.

The application relates to a substrate with micro-nano composite texture and a preparation method and application thereof, and belongs to the technical field of biological medicine. The preparation method comprises the following steps: S1, adopting a nanosecond laser to perform texture treatment on pretreated metal titanium, forming micro texture on the surface of the metal titanium, and obtaining micro texture metal titanium; S2, uniformly stirring ammonium fluoride in ethylene glycol, then uniformly stirring water in the ethylene glycol, and obtaining an electrolyte; S3, connecting the positive pole of a direct current power supply to the micro texture metal titanium as an anode, connecting the negative pole of the direct current power supply to a platinum electrode as a cathode, and performing magnetic field assisted anodic oxidation treatment on the micro texture metal titanium in the electrolyte, so that nano texture is formed on the surface of the micro texture metal titanium; and after cleaning and drying, a substrate with micro-nano composite texture is obtained. The substrate is applied to a drug-loaded coating of a metal implant, can realize micro-nano multi-scale cooperation, integrates the macrostructure advantage of the micron texture and the surface characteristics of the nanotube, and greatly improves the comprehensive performance of the drug-loaded coating.

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 invention belongs to the technical field of aluminum alloy materials, and particularly relates to a colored aluminum anode oxide film and a preparation method thereof. Aluminum is sequentially subjected to electrochemical polishing and anodic oxidation to obtain an aluminum anodic oxide film, then the aluminum anodic oxide film is immersed in an azo precursor solution, and a red azo dye is synthesized in situ in pores of the porous oxide film through an azo reaction between diazonium salt and benzene sulfonate, so that coloring of the aluminum oxide film is completed. By synthesizing sulfonic acid modified alendronate and compounding the sulfonic acid modified alendronate to form the electrochemical polishing solution, the electrochemical polishing quality of the surface of an aluminum sheet can be effectively improved. An electrolyte additive with phosphate groups, carboxyl groups and alcohol amino groups at the same time is used for anodic oxidation, a porous oxidation film with the appropriate pore size is formed, finally, an azo precursor of a specific structure is screened, loading fixation of azo dye on the porous film is further improved by means of sulfonic acid groups on azo molecules, and the stability of the anode is improved. And the aluminum oxide film with a good coloring effect is obtained.

The invention provides an aluminum alloy pretreatment method based on complex reaction, which comprises the following steps: S1, polishing an LDH (Layered Double Hydroxides) growth surface by using abrasive paper, and cleaning and drying; s2, preparing a complexing agent solution, wherein a complexing agent is selected from at least one of tannic acid, gallic acid and protocatechuic acid; s3, the aluminum alloy sample treated in the step S1 is put into the complexing agent solution in the step S2, and constant potential is applied to the aluminum alloy; s4, preparing a mixed solution of Zn (NO3) 2.6 H2O and NH4NO3, and adding an ammonia water solution to adjust the pH value to 6-6.5; s5, immersing the aluminum alloy treated in the step S3 into the mixed solution in the step S4, and putting the aluminum alloy into a constant-temperature water bath kettle to generate a Zn-Al-LDH film; and S6, after the hydrothermal reaction is finished, cooling to room temperature, and washing and drying the obtained reaction product. The surface of the aluminum alloy is pretreated through the complexing agent, the potential between an intermetallic compound and an aluminum matrix can be effectively balanced, the micro-couple effect is fundamentally inhibited, and ideal conditions are created for uniform, compact and defect-free growth of LDH.

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 present disclosure generally relates to materials, processes, generators, and / or systems, for generating radioisotope. The present disclosure also generally relates to ceramic materials comprising radioisotope suitable for use in a radioisotope generator. The present disclosure also generally relates to processes, generators and / or systems, for producing and capturing radioisotope. The present disclosure also generally relates to the preparation of radioisotope solutions for use in radiopharmacy and / or other clinical applications.

The present invention provides an electrolytic copper foil which is not susceptible to breaking. With respect to this electrolytic copper foil, if t (unit: μm) is the foil thickness, Gs (unit: %) is the gloss of the electrolytic deposition end surface as determined by irradiating the electrolytic deposition end surface with light at an angle of incidence of 60° in the length direction, and E (unit: %) is the elongation as determined by pulling the foil in the length direction, the foil thickness t is from 10 to 20, Gs / t that is obtained by dividing the gloss Gs by the foil thickness t is from 10 to 40, and E / t that is obtained by dividing the elongation E by the foil thickness t is from 0.9 to 1.8.

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.

The application relates to the technical field of nanomaterials, in particular to a CoMo-BTNT anode, a preparation method and application thereof, wherein the preparation method comprises the following steps: preparing a Ti substrate; preparing a titanium dioxide nanotube array by using the Ti substrate; depositing a Co-Mo oxide layer deposition solution onto the surface of the TNA through a direct current deposition method, and then performing annealing heat treatment to prepare a CoMo-TNA; and preparing the CoMo-BTNT anode by taking the CoMo-TNA as a cathode and a Pt sheet as an anode; the application further provides application of the above CoMo-BTNT anode in antibiotic degradation in water; the application takes the TNA as a base layer, and deposits an active CoMo oxide layer thereon; the CoMo-BTNT anode has good conductivity and electrocatalytic performance, the conductivity of the anode is improved, an effective electrically assisted activated PMS tetracycline degradation system is constructed, and a new solution idea is provided for tetracycline wastewater treatment.