1037 results about "Al powder" patented technology

The invention discloses a wear-resistant high-strength composite polyurethane sieve plate and a preparation method thereof, and belongs to the technical field of polyurethane sieve plate processing.The preparation method comprises the following steps that modified polyurethane is added into xylene, the temperature of a reaction system is increased to 90-100 DEG C, stirring is conducted till the system is dissolved and clarified, and a polyurethane sieve plate is obtained; the preparation method comprises the following steps: adding olefin double bond modified aluminum oxide powder and a catalyst into a reaction system, taking composite polyurethane prepared from modified aluminum powder reinforced modified polyurethane as a polyurethane sieve plate base material, and carrying out reinforced crosslinking on the composite polyurethane by using o-cresol formaldehyde epoxy resin and modified nylon fiber; the strong acid and alkali corrosion resistance of the composite polyurethane sieve plate is effectively improved, and the service life of the composite polyurethane sieve plate is effectively prolonged.

The invention relates to an aluminum-based composite material, in particular to a preparation method of an in-situ micro-nano Al2O3 particle reinforced aluminum-based composite material. The preparation method comprises the following steps: carrying out ball-milling pre-dispersion on silica powder, calcined kaolin and aluminum powder according to a specified ratio, stirring an Al-Si alloy melt at a semi-solid temperature, adding ball-milling mixed powder, heating to a temperature above an Al-Si alloy liquidus, dispersing reactant powder by using a blade-tray integrated stirring device, heating, carrying out heat preservation, carrying out heat preservation, and carrying out vacuum drying to obtain the aluminum-silicon alloy. And reacting to generate in-situ micro-nano Al2O3 particles, cooling, supplementing alloy elements, refining, and pouring to obtain the in-situ micro-nano Al2O3 particle reinforced composite material. According to the blade-tray integrated stirring device, mechanical stirring and the rolling and impacting effects of the ceramic balls are combined, the problem of one-time dispersion of micro-nano reactant powder is effectively solved, meanwhile, passivation of edges and corners of micron particles is achieved, and the comprehensive performance of in-situ particle reinforced aluminum matrix composites is improved.

The invention relates to the field of aluminum materials, and provides an automobile corrosion-resistant aluminum material and a preparation method thereof.The automobile corrosion-resistant aluminum material is prepared from cerium oxide loaded aluminum oxide nanorods, scandium / boron nitride nanotubes, zirconium powder, magnesium powder, copper powder, manganese powder, silicon carbide nanoparticles, TiB2 nanoparticles, aluminum powder and stearic acid. Wherein the cerium oxide loaded aluminum oxide nanorod is composed of an aluminum oxide nanorod and cerium oxide nanoparticles loaded on the surface of the aluminum oxide nanorod, and the scandium / boron nitride nanotube is composed of a boron nitride nanotube and a scandium nanolayer uniformly coated on the surface of the boron nitride nanotube. The material is prepared through mechanical ball milling, cold isostatic pressing forming, vacuum sintering and aging treatment, and finally the aluminum-based composite material containing the Al3Sc nano precipitated phase and the boron nitride nanotube reinforced phase is formed. And an Al3Sc precipitated phase and an aluminum matrix form a coherent interface, so that the strength, the corrosion resistance and the wear resistance of the material are improved. Through nanostructure optimization, high performance of the aluminum alloy is achieved, and the aluminum alloy is suitable for the fields of automobiles, aerospace and the like.

The invention discloses a method for recovering lithium, nickel cobalt manganese composite hydroxide and aluminum copper powder from a waste ternary lithium ion battery pole piece. The method comprises the following steps: treating waste pole pieces of a ternary plant or a mixture of positive and negative pole pieces by using a Fenton technology, leaching by using a mixed ferric salt solution, and filtering to obtain lithium-containing leachate and slag; adjusting the pH value of the leachate, oxidizing and filtering to obtain a purified solution and ferric hydroxide precipitate, and adding the purified solution and a lithium hydroxide solution into a reactor for coprecipitation to obtain a deeply purified solution and the nickel-cobalt-manganese composite hydroxide. And dissolving the ferric hydroxide precipitate with dilute acid, adding a reducing agent to generate a ferrous salt solution, and returning the ferrous salt solution for Fenton reaction and leaching reaction. And adding the sodium carbonate saturated solution into the deep purification solution, and crystallizing and precipitating to obtain the battery-grade lithium carbonate. And performing hydrodynamic screening on the leaching residues to obtain an aluminum-copper mixture and graphite residues, and performing grinding and specific gravity separation on the aluminum-copper mixture to obtain high-purity aluminum powder and copper powder. According to the method, the iron salt is directly leached from the pole piece, the used iron salt can be recycled, and the method is suitable for large-scale recovery of the waste ternary lithium ion battery.

The invention belongs to the technical field of electrode preparation, and discloses an alkaline electrolysis water electrode and a preparation method thereof. Comprising the following steps: (1) mixing nickel-based alloy powder and aluminum powder to obtain catalyst powder; (2) spraying catalyst powder on the electrode substrate to form a functional layer; (3) carrying out activating treatment on the sprayed electrode substrate; and (4) carrying out heat treatment on the activated electrode substrate to obtain the alkaline electrolysis water electrode. According to the invention, alloying and mechanization are fused, and finally activation and heat treatment are carried out, so that the prepared alkaline electrolysis water electrode has the advantages of catalytic activity, high stability, high energy efficiency and the like.

The invention discloses an Al-Ti-C-Ce intermediate alloy with titanium carbide as a Ti source and a C source and a preparation method and application thereof.The preparation method comprises the steps that titanium carbide powder and aluminum powder are mixed and subjected to ball milling to obtain core-shell structure composite powder with TiC coated with Al, the core-shell structure composite powder is subjected to compression molding to obtain prefabricated blocks, the prefabricated blocks are pressed into the bottom of an aluminum melt in batches through a graphite bell jar, and the aluminum melt is subjected to heat treatment to obtain the Al-Ti-C-Ce intermediate alloy with the Ti source and the C source. The preparation method comprises the following steps: adding an Al-30Ce intermediate alloy, carrying out first heat preservation at 760-850 DEG C, cooling to 700-750 DEG C, adding the Al-30Ce intermediate alloy, carrying out second heat preservation, deslagging and refining, and pouring into a mold to obtain the Al-Ti-C-Ce intermediate alloy; according to the Al-Ti-C-Ce intermediate alloy provided by the invention, A356 alloy grains are refined to 106 microns (ASTM 5 level), and a low-content system can still maintain the refining level that the grain size is smaller than 120 microns.

The invention provides a preparation method of a sintered anode foil, the sintered anode foil and an aluminum electrolytic capacitor, and the preparation method comprises the following steps: (1) mixing a dispersant and a binder, fully dissolving, adding aluminum powder, and uniformly dispersing to obtain slurry; the binder comprises at least one of aliphatic polycarbonates shown in the following general formula I: # imgabs0 #, m is an integer from 1 to 10, and n is an integer from 100 to 2000; (2) respectively coating two sides of a base material foil with the slurry, and drying to obtain a coated foil; (3) sintering the coated foil to obtain a sintered foil; and (4) forming the sintered foil to obtain the sintered anode foil. According to the preparation method disclosed by the invention, the aliphatic polycarbonate as shown in the general formula I is used as a binder, has a relatively good dispersion effect on micron-sized aluminum powder, and is easier to remove in a sintering stage, so that the sintered anode foil with low carbon residue and leakage current is prepared, and the preparation energy consumption is reduced.

The invention discloses a laser welding method for dual-phase steel and aluminum alloy with a preset nanometer rare earth middle layer, and belongs to the field of dissimilar material laser welding. The laser welding method comprises the steps that to-be-welded parts of an aluminum alloy plate and a dual-phase steel plate are subjected to accurate grinding and cleaning; the preparation method comprises the following steps: uniformly mixing aluminum powder with nanoscale CeO2 powder, and adding acetone to obtain pasty Al-CeO2 powder; a groove is cut in the side, making contact with the dual-phase steel plate, of the aluminum alloy plate in the welding seam direction, and the groove is pre-coated with the pasty Al-CeO2 powder; a protective gas device is installed, and argon is used for welding protection; and fifthly, the aluminum alloy and dual-phase steel plate welding test piece is clamped to a universal welding clamp, and laser welding is conducted. According to the method, the problem that cracks are generated on the bonding surface in steel-aluminum welding and the problem that air holes are generated when rare earth oxide is added in steel-aluminum welding are solved, the size and the number of brittle intermetallic compounds at the interface are reduced, and the loading capacity of a steel-aluminum laser welding joint is improved.

The invention discloses medium-entropy MAB-phase ceramic powder and a preparation method thereof, and belongs to the technical field of ceramic material preparation. The chemical formula of the ceramic powder is (Cr1 / 3Mn1 / 3Fe1 / 3) 2AlB2, and the ceramic powder is structurally characterized in that three transition metal atoms of Cr, Mn and Fe are in random solid solution distribution at an M position. The preparation method of the material comprises the following steps: taking Cr powder, Mn powder, Fe powder, Al powder and B powder as raw materials, burdening according to a stoichiometric molar ratio in a chemical formula (Cr1 / 3Mn1 / 3Fe1 / 3) 2AlxB2 (wherein x is equal to 1.0-1.3), uniformly mixing, and sintering in a non-pressure tube furnace by adopting a two-stage heating sintering process. And crushing, drying and sieving the sintered product to obtain the ceramic powder. According to the invention, excessive aluminum powder is added to compensate high-temperature volatilization, and a two-stage sintering process is combined, so that the generation of an impurity phase is effectively inhibited, and a high-purity target product is successfully prepared. The synthesis method is simple in process, low in equipment requirement and suitable for large-scale production, and a material basis is provided for application of the medium-entropy MAB phase ceramic in the fields of electromagnetic functions, high-temperature environments and the like.

The present invention discloses a preparation method and use of an Al2O3-Al composite packaging material, and the preparation method comprises the following steps: step A: uniformly mixing aluminum powder, aluminum oxide powder, CuO-TiO2 powder and ceramic particle additive powder to obtain a mixed raw material A; step B: adding a polyvinyl alcohol aqueous solution to the mixed raw material A and grinding it fully to obtain a mixed raw material B; step C: placing the mixed raw material B in a ball mill for ball milling, and obtaining a mixed raw material C after the ball milling is completed; step D: cold-pressing the mixed raw material C to obtain a prefabricated block; step E: placing the prefabricated block in a resistance furnace for sintering, and cooling it to room temperature with the furnace after the sintering is completed, to obtain an Al2O3-Al composite packaging material. The composite packaging material is used to encapsulate an aluminum-silicon alloy phase change heat storage material. The composite packaging material prepared by the present invention can be used to encapsulate an aluminum-silicon alloy phase change heat storage material, and has the advantages of good corrosion resistance and not easy to leak.

The invention provides a novel underwater wet welding flux-cored wire and a preparation method thereof. The flux-cored wire comprises a metal sheath and a flux core, the flux core is prepared by sintering a flux core base material and a flux core additive; the flux core base material comprises the following raw materials in percentage by mass: 20-40% of rutile, 15-35% of fluoride, 2-7% of titanate, 3-10% of aluminum powder, 5-15% of manganese powder and 10-15% of composite nano metal oxide; the composite nano metal oxide at least comprises the following raw materials: nano aluminum oxide, nano zirconium dioxide, nano yttrium oxide, nano cerium oxide and nano lanthanum oxide; and the flux-cored additive is linear aliphatic epoxy resin. The specific mixed nano metal oxide powder is added into the flux-cored wire, grain refinement is achieved, a quenched martensite structure is reduced, the mechanical property of a weld joint is improved, meanwhile, the specific epoxy resin and the flux-cored base material are mixed, filled and sintered, a proper amount of carbon element is introduced while all raw material components of the flux-cored wire are dispersed uniformly and stably, and the welding quality of the flux-cored wire is improved. And metal is prevented from being oxidized in the welding process.

The invention provides a nano composite tungsten-based alloy. The alloy comprises the following components in parts by weight: 84.0 to 87.0 parts of W powder, 7.0 to 9.0 parts of N powder, 3.0 to 5.0 parts of Fe powder, 0.2 to 0.5 part of Co powder, 1.5 to 2.5 parts of Mo powder, 0.8 to 1.0 part of Zr powder, 0.5 to 0.8 part of Cr powder, 0.3 to 0.5 part of Mn powder, 0.4 to 0.5 part of B powder, 0.2 to 0.4 part of Ta powder, 0.1 to 0.3 part of Hf powder, 0.1 to 0.2 part of V powder, 0.1 to 0.3 part of T powder, 0.1 to 0.2 part of silicon carbide powder, 0.1 to 0.2 part of aluminum nitride powder, 0.3 to 0.5 part of yttrium oxide powder and 0.1 to 0.2 part of lanthanum oxide powder. The yield strength of the nano-composite tungsten-based alloy can reach 1270-1520 MPa, the tensile strength of the nano-composite tungsten-based alloy is 1430-1680 MPa, the ductility of the nano-composite tungsten-based alloy is 6-12%, and the impact toughness of the nano-composite tungsten-based alloy is 130-220 J / cm < 2 >.

A high thermal conductive silicone composition including: (A) an organopolysiloxane having at least two aliphatic unsaturated hydrocarbon groups in one molecule and a kinematic viscosity at 25 C of 100 to 100,000 mm2 / s; (B) an aluminum powder having an average particle size of 50 μm or more; (C) a thermal conductive filler having an average particle size of 0.1 to less than 50 μm; (D) an organohydrogenpolysiloxane having two or more hydrogen atoms bonded to a silicon atom (Si—H groups) in one molecule; (E) a hydrolyzable organopolysiloxane represented by the following general formula (1); and (F) a platinum group metal catalyst having an effective amount. The high thermal conductive silicone composition can conform to the warpage of a substrate due to an increased material thickness and can maintain heat dissipation performance due to a high thermal conductivity.

The invention provides a spraying-free Raney nickel electrode preparation method, a Raney nickel electrode and hydrolysis hydrogen production equipment, and relates to the field of Raney nickel electrodes. The preparation method comprises the following steps: mixing raw materials including aluminum powder, a dispersing agent, a binder and water to obtain raney nickel electrode slurry; coating the Raney nickel electrode slurry on a nickel net and drying to obtain a pretreated electrode; calcining the pretreated electrode net under inert gas protection or a vacuum condition to obtain an unactivated nickel-aluminum alloy net; and activating the unactivated nickel-aluminum alloy net to obtain the Raney nickel electrode. According to the preparation method provided by the invention, the precursor of the Raney nickel electrode is prepared in a slurry brushing manner, so that the consumption of powder is greatly reduced, and waste is reduced. A nickel-aluminum alloy phase is grown on the nickel net in situ in a powder metallurgy mode, and the nickel-aluminum alloy has very excellent binding force.

The invention provides a simulation material for a mechanical test of a press-fitting explosive, which is prepared from the following raw materials in parts by weight: 65.5% of ammonium sulfate, 27%-33% of aluminum powder, 1.5%-4% of microcrystalline wax, 1%-2% of butadiene rubber and 0.2%-0.8% of graphite. The compressive strength and the tensile strength of a grain formed by pressing the simulation material for the mechanical test of the pressed explosive are basically consistent with those of a grain formed by pressing a polyblack aluminin-2 (JHL-2) explosive, the change trend and the change limit of the strength in the mechanical test process can be truly reflected, and effective reference data are provided for mechanical property evaluation; relatively real and reasonable model parameters are provided for the digital design of the mechanical property of the press-fitting explosive; in an aging test, a tensile test, a mechanical compression test and a dynamic Brazilian test, the simulation material for the press-fitting explosive mechanical test can be prevented from being in contact with energetic explosive components, so that the safety of the test is improved, and the potential safety hazard is reduced.

This invention discloses an Al-Ti-C-Ce master alloy using titanium carbide as both Ti and C sources, its preparation method, and its application. Titanium carbide powder is mixed with aluminum powder and ball-milled to obtain an Al-coated TiC core-shell composite powder. The core-shell composite powder is pressed into preforms. These preforms are then pressed into the bottom of molten aluminum in batches using graphite bell jars. The mixture is first held at 760-850℃, then cooled to 700-750℃. An Al-30Ce master alloy is then added, followed by a second holding period. The mixture is then slag-removed and refined, and finally cast into a mold to obtain the Al-Ti-C-Ce master alloy. The Al-Ti-C-Ce master alloy provided by this invention refines the grain size of A356 alloy to 106 μm (ASTM grade 5), and even in low-content systems, a grain size refinement level of less than 120 μm can be maintained.

The invention belongs to the technical field of preparation of aluminum-based composite materials, and particularly relates to a preparation method of a reinforced aluminum-based composite material through vacuum reciprocating smelting assisted thin-strip cast rolling. Comprising the steps of aluminum matrix material preparation, ceramic / aluminum matrix composite powder vacuum ball milling, aluminum matrix and ceramic / aluminum matrix composite powder vacuum reciprocating smelting, thin strip cast rolling, cast strip primary treatment, cast strip heat treatment, hot rolling, cold rolling, performance optimization and the like. An aluminum alloy matrix bar with specific components is selected, ceramic particle / aluminum matrix composite powder with the mass fraction of 5%-25% is prepared through vacuum ball milling, it is ensured that aluminum powder is completely attached to the surfaces of ceramic particles, and good wetting of the particles and an aluminum matrix is achieved. And then thin strip cast rolling, heat treatment, hot rolling, cold rolling and other treatments are carried out. And finally, the ceramic / aluminum-based composite material with the ceramic particles uniformly distributed on the matrix is prepared, and the ceramic / aluminum-based composite material shows excellent tensile strength, elongation and wear resistance and has no grain boundary segregation phenomenon.

The invention discloses a block anode for an aluminum electrolytic capacitor and a preparation method of the block anode, and belongs to the technical field of aluminum electrolytic capacitors, and the preparation method of the block anode for the aluminum electrolytic capacitor comprises the following steps: uniformly mixing dielectric substance coated aluminum powder, a binder and a solvent to obtain slurry, and drying the slurry to remove the solvent in the slurry to obtain mixed powder; the dielectric constant of the dielectric substance is greater than that of aluminum oxide; and briquetting and shaping the mixed powder to obtain a block, degreasing the block in an oxygen-containing atmosphere, and sintering in an oxygen-free atmosphere to obtain the block anode for the aluminum electrolytic capacitor. A later-stage anode cutting process is reduced through a block type integrated forming technology, and the problem that edge burrs are generated due to shearing friction between a metal cutter and anode foil is solved fundamentally. The dielectric constant of the block type anode dielectric layer is increased by introducing the dielectric substance, and the problem of low capacity of the anode foil of the aluminum electrolytic capacitor is solved.

The invention discloses a high-performance cement-based micro-expansion filling grouting material and a preparation method thereof, and belongs to the technical field of inorganic cementing materials. The high-performance cement-based micro-expansion filling grouting material is prepared from Portland cement, fly ash, graded aggregate, aluminum silicate coated aluminum powder, calcium silicate coated magnesium oxide, tung oil coated iron powder, a calcium formate early strength agent, polycarboxylate superplasticizer powder and water. According to the obtained high-performance cement-based micro-expansion filling grouting material, the fluidity ranges from 432 mm to 441 mm, the 28-day compressive strength ranges from 63.5 MPa to 65.2 MPa, the 28-day breaking strength ranges from 14.3 MPa to 15.1 MPa, the 28-day shrinkage rate ranges from 0.01% to 0.04%, and the 10-time freezing and thawing expansion rate ranges from 0.03% to 0.06%.

The invention relates to a titanium-aluminum composite material and a preparation method and application thereof, and the preparation method comprises the following steps: ball-milling and mixing titanium powder and aluminum powder, sequentially carrying out die filling, sheath welding and hot isostatic pressing treatment, and then sequentially carrying out sheath removal and machining to obtain the titanium-aluminum composite material, the diameter of the titanium-aluminum composite material ranges from 250 mm to 350 mm, and the thickness of the titanium-aluminum composite material ranges from 450 mm to 550 mm. The titanium powder and the aluminum powder are uniformly mixed through ball-milling mixing, the material is subjected to hot isostatic pressing forming through the sheath, the cost is low, the density improvement effect is remarkable, the large-size titanium-aluminum composite material can be prepared through hot isostatic pressing, batch production of the material is facilitated, the preparation period is greatly shortened, and the production cost is reduced. The problems that titanium-aluminum composite material particles are prone to agglomeration, difficult to form, low in density and uneven in structure are solved.

The invention relates to an electrode with an adjustable component structure and a preparation method and application thereof. The method comprises the following steps: mixing and ball-milling high-catalysis powder and active corrosion powder to obtain mixed powder; the high catalytic powder is one or more of Ni powder, Fe powder, Co powder and Mo powder, and the active corrosion powder is one or more of Al powder, Zn powder and Mg powder; depositing the mixed powder on the surface of a pretreated substrate by utilizing a directional energy deposition process to obtain a deposited electrode; carrying out heat treatment on the deposition electrode in an inert atmosphere and / or a reducing atmosphere to obtain a heat treatment electrode; and performing electrochemical corrosion on the heat treatment electrode by taking alkali liquor as electrolyte to prepare the electrode with an adjustable component structure. According to the method, additive manufacturing (directional energy deposition) and subtractive manufacturing (electrochemical corrosion) are combined, the components and the microstructure of the prepared electrode can be accurately regulated and controlled, and the prepared electrode is excellent in catalytic hydrogen evolution performance.

The invention belongs to the technical field of electrode material preparation, and particularly relates to a preparation method of boric acid-assisted low-temperature sintered porous aluminum foil. The preparation method comprises the following steps: dispersing aluminum powder, boric acid and binder raw materials in a solvent to form dispersed slurry; and coating a matrix with the dispersed slurry, drying, sintering at 450-600 DEG C under protective gas, reacting boric acid with aluminum oxide on the surface of the aluminum powder to form low-melting-point aluminoborate, reducing the sintering temperature, promoting aluminum atom diffusion, increasing sintering neck formation, and sintering to obtain the porous aluminum foil. Boron oxide generated by decomposition of boric acid is added to react with aluminum oxide to form low-melting-point aluminoborate, the sintering liquidus temperature is reduced, aluminum atom diffusion is promoted, and low-temperature sintering at 450-600 DEG C is achieved. The aluminum powder sintered foil is suitable for energy storage devices such as an aluminum electrolytic capacitor and a lithium ion battery, has the advantages of low-temperature energy conservation, high porosity and strong mechanical property, and solves the problems of aluminum oxide obstruction and high high-temperature energy consumption of the traditional aluminum powder sintered foil.

The invention discloses a preparation method of a laser cladding in-situ synthesis Al2O3 ceramic reinforced high-entropy alloy coating doped with trace B, and belongs to the technical field of laser surface modification of titanium alloy. The preparation method comprises the following steps: uniformly mixing Al powder, Cr powder, Fe powder, Ti powder, V powder and B powder according to a molar ratio of 1: 1: 1: 1: 1: (0-0.1) (not 0) to obtain powder for laser cladding; and the powder for laser cladding is pre-arranged on the surface of a titanium alloy base material, then laser cladding is conducted, and the laser cladding in-situ synthesis Al2O3 ceramic reinforced high-entropy alloy coating is obtained. The prepared high-entropy alloy coating and the titanium alloy base material achieve metallurgical bonding, and the base material and the coating have high bonding strength. Due to the fact that the solid solubility difference of B in Ti and Al is large, the trace B element is added to promote generation of an Al2O3 ceramic phase in the cladding coating, and the abrasion resistance and the high-temperature oxidation resistance of the high-entropy alloy coating are improved.

The invention relates to the technical field of composite materials, in particular to a high-thermal-conductivity pouring sealant, which is prepared by the following steps: calcining aluminum powder at high temperature to obtain core-shell structure Al2O3atAl with Al2O3 as a shell and Al as a core, modifying with a silane coupling agent to obtain modified aluminum powder, and mixing with a thermal conductive filler, a flame-retardant filler, epoxy resin, a curing agent, a defoaming agent and an anti-settling agent to obtain the high-thermal-conductivity pouring sealant. According to the core-shell structure Al2O3-coated Al composite material, an aluminum oxide shell enables the composite material to have good insulation performance, aluminum metal in the core of the composite material has good heat conduction performance, and silane coupling agent modified Al2O3-coated Al can enhance the compatibility of the composite material in epoxy resin, so that the prepared pouring sealant has good heat conduction performance, and meanwhile, the heat conduction performance of the pouring sealant is improved. In addition, the adopted raw materials are easy to obtain, the production process is simple, and compared with the prior art, the flame-retardant plastic has a wide application prospect.

The invention relates to a filler with low glossiness, corrosion resistance and low infrared emissivity and an infrared stealth coating. The low-infrared-emissivity filler is prepared from the following raw material components in parts by mass: 20-40 parts of Cu powder, 5-15 parts of Al powder, 2-5 parts of matting powder, 1-2 parts of a first additive, 1-2 parts of a second additive and 1-12 parts of a coupling agent. The infrared stealth coating is prepared from the following raw material components in parts by mass: 2-4 parts of low-infrared-emissivity filler, 2-4 parts of a resin matrix, 2.5-3.5 parts of a curing agent and 2-15 parts of an organic solvent. Compared with the prior art, the filler and the infrared stealth coating with low infrared emissivity, low glossiness and corrosion resistance are prepared.

The invention provides a preparation method of an anode foil and an aluminum electrolytic capacitor, and relates to the technical field of capacitors. The preparation method comprises the steps that aluminum-containing slurry is prepared, the aluminum-containing slurry comprises a mixed solution and solid aluminum-containing powder, the mixed solution is prepared by mixing a solvent, a binder and an additive, and the solid aluminum-containing powder comprises aluminum powder and ceramic powder; providing an aluminum foil substrate, coating the surface of the aluminum foil substrate with aluminum-containing slurry, and performing drying treatment to form an aluminum foil blank; coating the surface of the aluminum foil green body with a film solution, and carrying out drying treatment to form a protective film layer on the surface of the aluminum foil green body; rolling the aluminum foil blank with the protective film layer by using a rolling mill in a skew rolling manner to obtain an initial anode foil; and sintering the initial anode foil, and removing the protective film layer to form a sintered foil. According to the preparation method, the anti-bending performance of the anode foil can be improved.

The invention provides a method for preparing an aluminum-titanium target by combining roll bonding and warm pressing of a waste aluminum-titanium target, and belongs to the technical field of powder metallurgy. The preparation method comprises the steps that the waste aluminum-titanium target is pretreated to obtain aluminum-titanium target semi-finished products, N pieces of aluminum-titanium target semi-finished products are taken, slurry containing aluminum powder is sprayed to the surfaces of the N pieces or N-1 pieces of aluminum-titanium target semi-finished products, and after spraying is completed, the aluminum-titanium target semi-finished products are obtained; and laminating the N aluminum-titanium target semi-finished products to obtain a composite plate, carrying out ply rolling on the composite plate to obtain a composite target material, and carrying out warm pressing on the composite target material to obtain the aluminum-titanium target material. According to the preparation method, the target materials can be fully diffused in the warm pressing process, the influence of the surface flatness on diffusion is reduced through the pre-pack rolling treatment, the aluminum powder serves as a soft middle layer, the good buffering and joint filling effects are achieved, diffusion is promoted, and the target material welding rate is gt in an optimal scheme; 95%. According to the preparation method, the utilization rate of the target material is increased, the production cost of the target material is reduced, and recycling of the target material is achieved.

The invention discloses a high-strength 6082 aluminum alloy, and relates to the technical field of alloys. When the high-strength 6082 aluminum alloy is prepared, firstly, aluminum chloride, titanium tetrachloride, chromium chloride, cerous nitrate and lanthanum nitrate serve as precursors, carbon fibers are doped, a reinforced phase A is prepared after heat treatment, secondly, aluminum powder, titanium powder, copper powder, chromium powder and manganese powder are prepared into high-entropy alloy to serve as a reinforced phase B, and finally, the high-strength 6082 aluminum alloy is prepared. And the reinforced phase A, the reinforced phase B and the aluminum alloy powder are mixed to prepare the aluminum alloy. The high-strength 6082 aluminum alloy prepared through the method has the good mechanical property.

The invention relates to the technical field of metal corrosion prevention, and particularly discloses a titanium alloy bolt surface aluminum coating coating method capable of improving corrosion resistance. A titanium alloy bolt surface aluminum coating coating method capable of improving corrosion resistance comprises the following steps that a titanium alloy bolt is subjected to cleaning and sand blasting pretreatment; the preparation method comprises the following steps: adding the aluminum powder and the benzaldehyde resin into the solvent, mixing and stirring, continuously adding the polytetrafluoroethylene micro powder, the diluent and the self-repairing microcapsule prepared in advance, and continuously stirring until the mixture is uniform, the prepared anti-corrosion aluminum coating is sprayed to the surface of the titanium alloy bolt, after the surface of the coating is dried, curing is conducted for 55 min to 65 min at the temperature of 180 DEG C to 200 DEG C, and the aluminum coating is obtained; the self-repairing microcapsule is prepared by mixing a microcapsule A and a microcapsule B, wherein the microcapsule A is prepared by wrapping a polyurethane prepolymer with polyvinyl butyral as a shell layer, and the microcapsule B is prepared by wrapping a curing agent support with polyvinyl butyral as a shell layer. The aluminum coating prepared through the method has the advantages of being good in corrosion resistance and durability.

The embodiment of the invention provides an IBC battery aluminum paste and an IBC battery, and the IBC battery aluminum paste provided by the embodiment of the invention comprises an organic auxiliary agent, boron powder, aluminum powder, gallium powder, glass powder and an organic binder. The gallium powder is added into the aluminum paste, the gallium element has an etching effect and is high in density, and the gallium element is rapidly reduced to the surface of silicon compared with aluminum in the sintering process, so that the Ga-Si contact probability is increased, the contact resistance of the paste and a battery is reduced, and a high open-circuit voltage can be kept; meanwhile, part of aluminum powder is replaced by gallium, so that the content of aluminum is reduced, the side effect of Al is reduced, the Al-Si reaction is weakened, a formed aluminum-silicon corrosion pit is shallower, the recombination is reduced, the open-circuit voltage and the photoelectric conversion efficiency of the battery are improved, and the service life of the battery is prolonged. Therefore, the problem that the open-circuit voltage and the photoelectric conversion efficiency of a battery piece are reduced due to the fact that metal compounding is easily formed in the cooling process after existing IBC battery aluminum paste is sintered into a positive electrode grid line is solved.