282 results about "Titanium powder" patented technology

The invention relates to a preparation method of a titanium-based composite material based on high-entropy boride ceramic modification, and belongs to the technical field of titanium-based composite material powder metallurgy. The high-entropy boride ceramic is (ZrHfTaTi) B2 in an equal molar ratio. The preparation method comprises the following steps that firstly, high-entropy boride ceramic powder and pure titanium powder are evenly mixed through ball-milling mixing, then the mixed powder is subjected to rapid hot pressing sintering, a sintered block is subjected to hot rolling treatment, and finally the titanium-based composite material is obtained. The composite material has excellent room-temperature and high-temperature comprehensive mechanical properties, the performance is greatly improved compared with commercial pure titanium, and the composite material can be used for manufacturing high-performance parts in the fields of aerospace and the like.

The invention provides a binder system for beryllium-titanium alloy powder injection molding and application, and relates to the technical field of metal powder injection molding. The adhesive system consists of the following components in percentage by weight: 76 to 84 percent of polyformaldehyde, 7 to 9 percent of high-density polyethylene, 5 to 7 percent of ethylene-vinyl acetate copolymer, 3 to 5 percent of paraffin, 0.1 to 0.5 percent of stearic acid, 0.1 to 1.5 percent of polyethylene glycol and 0.1 to 1 percent of BASF antioxidant. The feed preparation method based on the system comprises the steps of powder pretreatment, binder preparation, banburying mixing and cooling granulation, and uniform coating and dispersion of beryllium-titanium powder can be achieved. According to the system, the problems that in beryllium-titanium alloy injection molding, powder is prone to oxidation, poor in fluidity and low in size precision are solved, the viscosity of the prepared feed at 180 DEG C is 88-101 Pa.S, and the oxygen content is smaller than or equal to 0.24 wt%; the relative density of a finished product is larger than or equal to 96.5%, the size precision is + / -1% / in-+ / -2% / in, and the method is suitable for industrial production of beryllium-titanium alloy complex parts in the fields of spaceflight and nuclear energy.

The invention discloses an oxygen control process for injection-molded titanium alloy based on oxygen-free solvent degreasing, which belongs to the technical field of powder metallurgy materials and comprises the following steps of: banburying and cooling pre-alloyed titanium powder and a binder matrix, granulating and injection-molding, and degreasing, drying and sintering by using an oxygen-free solvent. According to the method, a full-process oxygen control process chain of vacuum pre-drying of pre-alloyed titanium powder, preparation of an oxygen-free binder, extraction and degreasing of an oxygen-free solvent, vacuum thermal degreasing and graphite furnace temperature control sintering is constructed, invasion of impurity elements such as carbon, oxygen and nitrogen is blocked from the source to a finished product, and the core bottleneck that the oxygen content of the powder metallurgy titanium alloy is difficult to control is solved; and the consistency of the strength and plasticity of the product is guaranteed through stable impurity control, and performance fluctuation caused by out-of-control of the oxygen content is avoided.

The invention relates to a preparation method of a double-layer high-temperature adhesive for connecting brass and aluminum oxide, which comprises the following steps: reacting aluminum hydroxide, zirconium hydroxide and dilute phosphoric acid to prepare an aluminum zirconium phosphate adhesive base solution, and compounding silicon powder, boron carbide, titanium powder, nickel powder and the adhesive base solution to prepare a special adhesive for coating a brass surface. And compounding silicon powder, boron carbide, titanium powder, nickel powder, aluminum oxide and the gum base solution to prepare the special adhesive for aluminum oxide surface coating. The brass surface coating special glue is brushed on the brass surface and cured, then the aluminum oxide surface coating special glue is brushed on the aluminum oxide surface, the brass coated with the adhesive and the aluminum oxide coated with the adhesive are attached together in the mode that the bonding surfaces are opposite, and the brass / aluminum oxide double-layer bonding piece is obtained after pressing and curing and can serve in the high-temperature environment. The method has the advantages that the special glue for brass surface coating and the special glue for aluminum oxide surface coating have high thermal expansion coefficient matching with brass and aluminum oxide, and thermal stress can be relieved; the double-layer adhesive can provide the bonding strength which can reach 1.3 MPa at the temperature of 500 DEG C.

The invention discloses a welding wire for delta-TRIP steel and a tailored blank laser welding method, and belongs to the technical field of tailored blank laser welding. The welding wire comprises, by mass, 0.08%-0.2% of C, 0.4%-1.2% of Si, 0.8%-1.8% of Mn, 3%-10% of modified titanium powder, smaller than or equal to 0.005% of S, smaller than or equal to 0.02% of P and the balance Fe and inevitable impurities. Wherein the titanium element is added in the form of modified titanium powder, and the modified titanium powder is prepared by mixing titanium powder, rare earth oxide and boron powder and then performing high-energy ball milling. According to the tailored blank laser welding method, annular light spot welding is adopted, a composite induction preheating-post-heating process is matched, and compressed air is used as shielding gas. According to the method, the volume fraction of the Ti (C, N) strengthening phase in the weld joint can be remarkably increased to 5.5%-7.5%, the weld joint structure is effectively refined, generation of thick columnar crystal delta-ferrite is inhibited, and a welded joint has excellent strength, plasticity and forming performance.

The invention provides a beryllium-titanium alloy injection molding feed and a preparation method thereof, and relates to the technical field of metal injection molding. The beryllium-titanium alloy injection molding feed is prepared by mixing composite beryllium-titanium alloy powder and a catalytic degreasing binder according to the mass ratio of (70-80): (20-30), the composite beryllium-titanium alloy powder is composed of, by mass, 40% of spherical beryllium powder, 30% of spherical titanium powder and 30% of irregular beryllium powder. The D90 of the spherical beryllium powder and the spherical titanium powder is 60-80 [mu] m, and the D90 of the irregular beryllium powder is 6-10 [mu] m; the catalytic degreasing binder is prepared from the following components in parts by mass: 76 to 84 parts of polyformaldehyde, 7 to 9 parts of high-density polyethylene, 5 to 7 parts of ethylene-vinyl acetate copolymer, 3 to 5 parts of paraffin, 0.1 to 1.5 parts of stearic acid, 0.1 to 1.5 parts of polyethylene glycol and 0.1 to 1 part of BASF antioxidant. The spherical powder and the irregular powder are reasonably proportioned, so that the powder stacking density and sintering compactness are improved, and meanwhile, the flowability is considered.

The invention relates to the technical field of material surface engineering and metallurgical equipment, in particular to a composite coating for prolonging the service life of a crystallizer copper plate and a plasma spraying preparation method thereof.The composite coating comprises, by mass, 35%-55% of chromium, 20%-55% of nickel, 5%-10% of titanium diboride, 0.1%-0.3% of niobium and the balance chromium carbide and inevitable trace impurity elements. According to the invention, titanium diboride and chromium carbide are used as main hard reinforcing phases, so that the coating shows excellent wear resistance at normal temperature and high temperature; a hollow graphite electrode is adopted in the spraying process, plasma arc is generated, and meanwhile an ablation product (carbon) provides a carbon source for formation of chromium carbide; the titanium powder and the boron powder are subjected to an in-situ reaction in a plasma arc to generate titanium diboride, and the in-situ synthesis technology enables hard phase particles to be fine and uniformly distributed, and forms a firm interface with a metal binding phase, so that the problems of interface pollution and weak combination caused by the addition of the hard phase are avoided.

This utility model relates to the field of aluminum ingot production technology, and provides an automatic release agent spraying device for an aluminum ingot production line. The device includes a base plate, a storage tank for storing release agent fixedly installed on the top of the base plate, and a mixing tank fixedly installed on the top of the storage tank. A water tank is fixedly installed on the top of the base plate, a bracket is fixedly installed on the water tank, and a discharge pipe is fixedly installed on the bracket. A solenoid valve is installed on the discharge pipe, and a hopper for dispensing aluminum-titanium powder is fixedly installed at the top of the discharge pipe. The bottom end of the discharge pipe extends into the interior of the mixing tank. This automatic release agent spraying device for an aluminum ingot production line solves the problem that existing release agent spraying equipment has a single function and cannot spray other substances that protect the mold, leading to easy damage to the mold during long-term use and affecting its service life.

This invention relates to the field of powder forging technology and discloses a high-precision forklift mast support processing method, including the following preparation steps: mixing iron powder, chromium powder, cobalt powder, titanium powder, manganese powder and reinforcing agent, drying and ball milling to obtain a mixture; pressing the mixture on a press to form a forklift mast support preform, then placing the preform in a sintering furnace for sintering to obtain a sintered blank; heating the sintered blank to the forging temperature, placing it in a forging die for forging, and then heat-treating to obtain a high-precision forklift mast support. The high-precision forklift mast support obtained by mixing iron powder, chromium powder, cobalt powder, titanium powder, manganese powder and reinforcing agent to form a uniform mixture, pressing and sintering the mixture to form a sintered blank, and placing the sintered blank in a forging die for forging has high mechanical strength and good interfacial bonding, making it less prone to cracking.

The application belongs to the technical field of target material production, and discloses a preparation method of titanium-aluminum target material, which comprises the following steps: first, titanium powder and aluminum powder are weighed according to a mass ratio of 4-5:5-6; then, the titanium powder, the aluminum powder and an antioxidant are put into a mixer to mix and obtain powder I, the antioxidant is at least one selected from stearic acid, sodium phytate and tea polyphenol, and the adding amount of the antioxidant is 0.1-0.5% of the total mass of the titanium powder and the aluminum powder; then, the powder I is ball milled under the atmosphere of nitrogen or argon to obtain powder II, and the ball milling time is 6-12 hours; finally, the powder II is subjected to hot isostatic pressing sintering, and then cooled and discharged from the furnace to obtain the titanium-aluminum target material; through the preparation method, the titanium-aluminum target material with low oxygen content, high density and excellent mechanical properties is obtained; in addition, the application further discloses a titanium-aluminum target material prepared by the preparation method of the titanium-aluminum target material.

The invention discloses a preparation method and application of a graphite flake diamond complex. The preparation method comprises the following steps: mixing diamond micro-powder, crystalline flake graphite, copper powder, sodium chloride, potassium chloride and titanium powder according to a certain proportion, co-firing at 880-1050 DEG C for 30-60 minutes, cooling, taking out a mixed co-fired sample, and fully cleaning with deionized water to obtain the graphite flake diamond complex (GD); mixing GD, a silane coupling agent and absolute ethyl alcohol according to a certain proportion, magnetically stirring for 60-120 minutes at the temperature of 60-80 DEG C, and preserving heat for 6-12 hours at the temperature of 100-200 DEG C to obtain a silane coupling agent surface modified graphite flake diamond complex (GDSM); and then, uniformly mixing the GDSM and dimethyl silicone oil according to a certain proportion, putting the mixture into a vacuum drying oven, carrying out vacuum-pumping heat preservation at 80-120 DEG C for 120-360 minutes, cooling to room temperature, and taking out to obtain the graphite flake diamond composite heat-conducting silicone grease which can be applied to the field of interface heat management of high-power devices.

The utility model discloses a filter device of a vacuum system for producing zirconium sponge, which relates to the technical field of zirconium sponge production and comprises a tank body and a filter component, a top cover is arranged at the top of the tank body, an air inlet pipe is connected to the lower end of one side of the tank body, and an air outlet pipe is arranged at the upper end of the other side of the tank body. And a dust collecting cavity is formed in the lower end of the tank body. According to the filtering device of the vacuum system for producing the sponge zirconium, through the arrangement of the filtering assembly, in the filtering process, due to the fact that a filter element of a first filtering plate is made of zirconium oxide foamed ceramic, the air hole density is 40-60 ppi, a filter element of a second filtering plate is made of porous activated carbon balls, and a filter element of a third filtering plate is made of a titanium powder sintering filtering material, the filtering efficiency is greatly improved; therefore, the overall corrosion resistance of the filtering assembly can be effectively improved, the filtering effect of the device can be kept, the connecting sleeve can be pulled out through the handle only by opening the top cover during replacement, and the filtering assembly is very convenient to replace and maintain.

This invention relates to a titanium powder rod feeding mechanism, belonging to the field of titanium powder processing equipment. It includes a rotating frame, disposed on one side of a discharge hopper and connected to a discharge gate, for driving the discharge gate to rotate; a locking member, disposed on the side of the discharge hopper away from the rotating frame, for locking the rotating frame disposed on the discharge gate; a pressing member, disposed on the discharge hopper and driving the rotating frame to control the discharge gate to close towards the discharge hopper; a rotating member, disposed on the rotating frame and for controlling the rotation direction of the locking member; and a sealing member, disposed on the discharge gate, for sealing the discharge hopper. The locking member includes: a locking seat, disposed on the side of the discharge hopper away from the rotating frame; a rotating sleeve, rotatably connected to the locking seat; a hinged connecting rod, fixedly connected to the rotating sleeve; a pressing block, sleeved on the hinged connecting rod and for pressing the rotating frame; and a pressing disc, sleeved on the hinged connecting rod and for pressing the pressing block. This application has the effect of improving the addition efficiency of titanium rods.

The application belongs to the technical field of carbon / ceramic composite material preparation, and provides an impregnation sealing liquid for carbon / ceramic friction discs, an impregnation sealing method, a densified carbon / ceramic friction disc and application thereof. The impregnation sealing liquid comprises 2-5% of an interface reinforcing metal component, 3-6% of a friction and wear resistant ceramic component, 2-5% of a metal oxide component and the balance of a polymer. The polymer comprises liquid polycarbosilane and liquid polyborosilazane, and the mass ratio of the liquid polycarbosilane to the liquid polyborosilazane is 7-9:1-3. The interface reinforcing metal component comprises one or more of titanium powder, chromium powder, nickel powder, cobalt powder and molybdenum powder. The friction and wear resistant ceramic component comprises one or more of silicon carbide, zirconium boride, boron carbide and zirconium carbide. The metal oxide component comprises one or more of cerium oxide, yttrium oxide and lanthanum oxide. The impregnation sealing liquid can realize the triple improvement of the interface bonding force, the friction stability and the high-temperature oxidation resistance of the carbon / ceramic friction disc.

This invention belongs to the field of laser surface engineering and metal matrix composite technology, and provides a Ti / Nb microalloyed Inconel 625 toughening coating, its composite powder, and preparation method. The composite powder is composed of gas-atomized Inconel 625 alloy powder, titanium powder, and niobium powder, with a Ti to Nb mass ratio of (0.8–1.2):1 and a total addition amount of 0.8–1.5 wt%. A dual-laser cladding process is employed. An initial coating is first formed by laser cladding in an inert atmosphere, followed by in-situ pulsed laser shock blasting when cooled to 900–1000℃. After slow cooling, a toughened coating is obtained. The resulting coating contains 10–20 nm dispersed Ni3(Nb,Ti) composite γ-rays. , The coating contains no Ni2(Nb,Si) Laves phase. It exhibits both high strength and high toughness, along with excellent high-temperature stability.

The invention relates to the technical field of alloy shaped charge liners for perforating bullets, and particularly discloses an energy-releasing alloy shaped charge liner for a perforating bullet and a preparation method of the energy-releasing alloy shaped charge liner for the perforating bullet to solve the problems that when an alloy shaped charge liner is prepared through an existing Zr-Ti-Nb composite material system, a blank is prone to expanding and cracking, and the dynamic tensile property of a product is insufficient. Comprising the following steps: S1, respectively taking zirconium powder, niobium powder, titanium powder and TiH2 powder, and mixing to obtain a premix; s2, taking the premix, and performing dry bag static pressure to obtain a dry bag static pressure blank; s3, the dry bag static pressure blank is taken and subjected to stepped hydrogen control sintering, and a hydrogen control sintering blank is obtained; s4, the hydrogen-controlled sintered blank is taken and placed in an argon atmosphere, heating and pressure sintering are conducted, and a hot isostatic pressing sintered blank is obtained; and S5, the hot isostatic pressing sintered blank is subjected to oil quenching at the temperature of 1050 + / -50 DEG C, and the energy release alloy shaped charge liner for the perforating bullet is obtained. And meanwhile, multiple processes such as oil quenching heat treatment are combined, the energy-releasing alloy shaped charge liner of the full-beta-phase structure can be stably obtained, and the effects such as the sneaking effect and the chambering effect can be achieved on the premise that the penetrating depth of a perforating bullet is not reduced.

The invention relates to intelligent suspension conveying equipment for conveying titanium concentrate powder, and relates to the technical field of suspension conveying equipment.The intelligent suspension conveying equipment comprises a suspension conveyor body, a plurality of conveying box bodies are connected to the suspension conveyor body, the upper ends of the conveying box bodies are in an open state, and discharging ports are formed in the lower ends of the conveying box bodies; a discharging opening is formed in the conveying box body, a discharging plate is rotationally connected to the discharging opening, a control piece used for controlling the discharging plate to rotate is arranged on the conveying box body, a rotating shaft is rotationally connected to the side wall of the side, away from the discharging opening, of the conveying box body, a pulley is fixedly connected to the rotating shaft, and a guide plate is fixedly connected to the overhead conveyor body; the guide plate is fixedly connected with a guide rail used for lifting the pulley, and after the pulley is arranged in the guide rail, the end, away from the discharging port, of the conveying box body moves upwards. The titanium powder conveying device has the effect of reducing residues of titanium powder in the conveying box body.

The invention discloses nanoscale Ti2O3, a preparation method and application of the nanoscale Ti2O3 as a catalyst carrier, and belongs to the technical field of nano material preparation. According to the invention, a solid-phase synthesis method is utilized, nano titanium powder and nano titanium dioxide are used as raw materials, and the nano-scale Ti2O3 brownish black powder with uniform particle size distribution is controllably synthesized. Meanwhile, a series of noble metal supported catalysts are synthesized by taking the catalyst as a catalyst carrier. According to the invention, rapid synthesis of nanoscale Ti2O3 is realized, and the particle size of the prepared sample is uniform and is about 300nm. The preparation method has the characteristics of high efficiency, rapidness, low equipment requirement, simplicity, easiness in repetition, high product purity and capability of realizing large-scale synthesis. Meanwhile, the prepared nanoscale Ti2O3 is small in size and uniform, so that a catalyst prepared by taking the nanoscale Ti2O3 as a carrier has relatively good dispersity, shows excellent electrocatalytic activity, can be prepared into catalyst slurry with relatively high uniformity, and is suitable for the fields of electrochemical catalysis and energy conversion.

The invention discloses a powder mesh composite gas diffusion layer, which is prepared by metallurgical bonding of titanium powder and a titanium mesh framework, and has the thickness of 20-100m, the porosity of 20-50%, the average pore size of 5-35m and the tensile strength of 200-500MPa. The invention also discloses a preparation method of the powder mesh composite gas diffusion layer, which comprises the following steps: step 1, tiling the titanium mesh framework and then filling with the titanium powder; a loose composite structure is formed; and 2, carrying out vacuum pressure sintering on the loose composite structure obtained in the step 1, and carrying out furnace cooling to finally obtain the powder net composite gas diffusion layer. The powder net composite gas diffusion layer disclosed by the invention has the ultrathin characteristic, the platinum plating amount can be greatly reduced, so that the cost of hydrogen production by electrolysis of water is reduced, the titanium net framework can effectively enhance the mechanical strength of the gas diffusion layer, and the problem of deformation of the diffusion layer in the assembly operation process is avoided.

The application relates to the technical field of metal material processing, and discloses a layered sintering preparation method of a composite layer titanium pot, which comprises the following steps: laying, from bottom to top, stainless steel powder, aluminum powder, active transition layer composite powder and titanium powder in a forming die in sequence, and compacting to obtain a composite green body; placing the green body in a variable pressure sintering furnace, first heating and keeping a low vacuum state; continuously heating to a second set temperature, starting a vacuum pump to instantaneously reduce to a deep vacuum state to discharge gas phase by-products; when heating to a third set temperature, filling argon into the furnace to establish a micro-positive pressure state and constant temperature preservation, inhibiting metal element volatilization and promoting liquid phase filling densification, and finally, cooling at a predetermined rate and naturally cooling out of the furnace. Through a temperature and pressure time sequence coupling process, the application eliminates interface oxide films and hole defects, realizes high-strength metallurgical combination of dissimilar metal materials, and improves the interlayer shear strength, thermal conductivity and thermal shock fatigue life of the composite pot.

The invention relates to the technical field of metal product preparation, and discloses a manufacturing process of a high-strength wear-resistant alloy cast iron pan, which comprises the following steps: respectively carrying out magnetic separation impurity removal on a basic raw material and titanium powder, then carrying out vacuum roasting, cooling and discharging to respectively obtain pre-treated pig iron, pre-treated carbon steel and pre-treated titanium powder; preheating an induction furnace, adding the pretreated pig iron, and raising the furnace temperature until the pretreated pig iron is completely molten; then adding the pretreated carbon steel and the reinforced alloy, starting electromagnetic stirring, then adding the pretreated titanium powder, and continuously stirring after adding to obtain a melt; a composite inoculant is added into the melt and stirred, then molten iron is poured into a heat preservation launder for pouring, demolding is conducted after heat preservation, and a pot blank is obtained; the pot bottom and the pot body of the pot blank are subjected to partitioned cooling, then overall cooling and vibration aging treatment are conducted, and then natural cooling is conducted to the room temperature; and after the cooled pan blank is ground and polished, the pan blank is coated with a composite ceramic coating, and the high-strength wear-resistant alloy cast iron pan is obtained.

The application relates to the technical field of titanium sponge crushing equipment, and discloses a titanium sponge crushing device for titanium powder production, which comprises a support, a motor fixedly connected to the top of the support, a fixed frame fixedly connected to the top of the support, and an inlet plate through-connectionly connected to the top of the fixed frame. After the titanium sponge is crushed by a crushing wheel, the titanium sponge is accumulated in the tooth groove of the crushing wheel. When the inclined block reaches the chute, the inclined block and the groove will penetrate into the inner wall of the chute, the groove will be in contact with the outer wall of the rotating block, and a buckling state is formed. After buckling is completed, the hook mechanism will limit the movement of the linkage assembly and the fixed plate, forcing the fixed plate to drive the fitting wheel to rotate along the inner wall of the rotating groove. When too much titanium sponge is accumulated in the tooth groove position of the crushing wheel, the fitting wheel will protrude outward and extrude the titanium sponge at the position outward, so that the tooth groove of the crushing wheel is prevented from being blocked.

The application belongs to the technical field of nickel alloy manufacturing, and particularly relates to a kind of wear-resistant and corrosion-resistant nickel-based alloy material and a preparation method thereof, the nickel-based alloy material is sintered from Ni-Cr-Mo pre-alloy powder, Co powder, Ta powder, rare earth oxide powder, titanium sponge powder and core-shell structure reinforcing phase, the reinforcing phase adopts the core-shell structure of Ni-Mo coated silicon carbide-graphite, which is used to eliminate heterogeneous interface pores and in-situ anchor effectively to prevent particle peeling, and effectively block the malignant outward diffusion of carbon atoms to protect the intergranular corrosion resistance of alloy matrix, the nickel-based alloy material is purified by in-situ deoxidization, carbide interface is anchored effectively, and the corrosion-resistant hardening of core-shell reinforcing phase, a high-bonding composite reinforcement network is built inside, the problem of intergranular corrosion caused by heterogeneous phase peeling and carbon diffusion is solved, and efficient combination of high metallurgical density, lubrication and corrosion resistance is realized.

The invention belongs to the field of petroleum mechanical sealing, and discloses a throttle pipe sealing structure and a preparation method thereof.The throttle pipe sealing structure comprises a throttle pipe body and a composite sealing ring arranged on a sealing section of the throttle pipe body in a sleeving mode, and the composite sealing ring is formed by compounding a metal base layer and a non-metal functional layer; the metal substrate layer comprises the following raw materials: 40-55 parts of nickel-based alloy powder, 10-16 parts of chromium powder, 7-13 parts of molybdenum powder, 4-9 parts of tungsten powder, 3-7 parts of tantalum powder, 2-5 parts of vanadium powder, 1-4 parts of niobium powder, 0.5-2 parts of rare earth yttrium powder, 2-4 parts of titanium powder, 1-3 parts of aluminum powder and 0.1-0.5 part of graphene nanosheets; the nonmetal functional layer is prepared from the following raw materials: 45 to 65 parts of polytetrafluoroethylene resin, 12 to 22 parts of graphite powder, 6 to 12 parts of carbon fiber, 5 to 12 parts of boron nitride nanosheet, 3 to 8 parts of polyether-ether-ketone micro powder, 2 to 5 parts of molybdenum sulfide and 4 to 8 parts of nano silicon dioxide coated mica powder; the material ratio of the composite sealing ring and the structure of the sealing groove are optimized, so that the sealing performance, the temperature-resistant and pressure-resistant performance and the flexibility are synergistically improved.

The invention relates to the technical field of aluminum alloy additives, and provides a high-recovery-rate titanium additive for smelting aluminum alloy, and the titanium additive comprises the following raw material components: sponge titanium powder, titanium scrap powder, aluminum powder, a fluxing agent, a surfactant and a binder; the average particle size of the sponge titanium powder is 200-300 meshes; the average particle size of the titanium scrap powder is 80-150 meshes; the aluminum powder comprises the following components in parts by weight: 15-35 parts of aluminum powder with the average particle size of 80-120 meshes, 35-45 parts of aluminum powder with the average particle size of 180-250 meshes and 30-40 parts of aluminum powder with the average particle size of 300-350 meshes. Through the technical scheme, the problem that the recovery rate of the titanium additive is not high in the related technology is solved.

The embodiment of the invention discloses a flow field diffusion layer integrated structure, a preparation method thereof and an electrolytic bath, and belongs to the technical field of water electrolysis hydrogen production, and the flow field diffusion layer integrated structure comprises a flow field structure, a gas diffusion layer and a first binder. The flow field structure and the gas diffusion layer are arranged in a stacked mode in the first direction, the first bonding layer is arranged between the flow field structure and the gas diffusion layer, and the material of the first bonding layer comprises at least one of nickel powder, titanium powder, nickel fibers, titanium fibers, a carbon-based material and a high polymer material. The flow field structure, the first bonding layer and the gas diffusion layer form an integrated structure. According to the flow field diffusion layer integrated structure, the mass transfer efficiency can be improved, the dynamic response performance is improved, the energy efficiency is guaranteed, and the service life is prolonged.

The application discloses a carbon-copper composite material for a pantograph slide plate and a preparation method thereof. The carbon-copper composite material is prepared from the following components in percentage by mass: copper powder 65-68%, chromium powder 3-5%, tin powder 1-3%, titanium powder 1-3%, ultra-fine particle size calcined coke 10-13%, carbon fiber powder 9-11% and polysilazane resin 3-5%. The product prepared by the application has good self-lubricity and low resistivity, has good compressive strength, can maintain a long service life in a salt spray area environment, and has good economic prospects.

The invention discloses titanium-containing leather, which is prepared from a solvent-free PU (polyurethane) mixture prepared by mixing a component A and a component B through blade coating, baking, base cloth attaching and separation processes, and the component A comprises the following components in percentage by mass: 80-85% of polyether polyol, 12-15% of polyester polyol, 2-8% of nano titanium powder, 0.2-0.6% of a zinc-bismuth compound and 0.1-0.4% of a platinum-carbon catalyst. By adding nano titanium powder into a solvent-free PU mixture and combining a specific component ratio and a preparation process, the product has good high temperature resistance, super-strong corrosion resistance and antibacterial property and is suitable for various application scenes such as outdoors, home furnishing, fitness equipment and the like, the leather is endowed with excellent mechanical properties due to the super strength of titanium, the leather is suitable for lightweight design, and the cost is reduced. The leather material has the advantages of high temperature resistance, corrosion resistance, biocompatibility and the like, can be widely applied to the fields of new energy automobiles and aerospace, has excellent biocompatibility, and meets the requirements of scenes such as medical and physical therapy equipment, children products, dining table mats and the like on material safety.

The invention discloses a method for preparing a porous titanium-based material with low mass transfer resistance by using magnetic field induction, and relates to the technical field of electrode manufacturing, and the method comprises the following steps: preparing titanium powder slurry containing magnetic components and titanium powder slurry without magnetic components, and preparing a double-layer or multi-layer composite structure from different slurries; directionally arranging the magnetic components by using a magnetic field; the sintering treatment enables the magnetic components to be decomposed or sintered to generate a directionally-arranged supporting structure, and the directionally-arranged supporting structure is obtained; and continuously sintering at the temperature higher than the first temperature interval, and pickling to remove the directionally arranged support structure to obtain the porous titanium-based material with the dual-scale pore structure, the problems that in the prior art, mass transfer efficiency is low, mass transfer resistance is large, a directional through pore structure is difficult to achieve, cooperative construction of pores with different pore diameters is difficult, the functionality of the pores is single, and the pores are prone to being polluted are solved.

The invention discloses a method for improving the structure and performance of a 6063 aluminum alloy formed through selective laser melting, and belongs to the technical field of selective laser melting. Titanium powder and zirconium hydride in a certain proportion are selected as doping agents, the doping agents are evenly mixed with 6063 aluminum alloy powder through a ball milling method, and then drying and dehumidification are conducted; and the mixed alloy powder is put into selected-area laser melting equipment, manufacturing is carried out on the surface of a base material under inert gas protection, and the 6063 aluminum alloy is obtained after laser, scanning, powder laying and deposition. According to the method, the microstructure and the mechanical property of the selective laser melting forming 6063 aluminum alloy are obviously improved, so that the selective laser melting forming 6063 aluminum alloy meets the industrial performance requirement of SLM, and good market competitiveness is achieved.