42 results about "Titanium hydride" patented technology

The invention provides high-purity superfine titanium diboride and a preparation method thereof, and relates to the field of titanium diboride preparation. The method comprises the following steps: mixing boron oxide, titanium hydride, a carbon source, nano rare earth oxide and an organic solvent, and drying to obtain a mixture; in a vacuum environment, performing first roasting on the mixture to obtain a first roasted material; and in an oxygen-containing atmosphere, carrying out second roasting on the first roasting material to obtain the high-purity superfine titanium diboride. In the first roasting process, boron oxide, titanium hydride and a carbon source are completely melted and fully contacted, then further, the carbon source forms a carbon skeleton, the contact area between the melted boron oxide and titanium hydride and the carbon skeleton is further enlarged, liquid-liquid mixing and the increase of the contact area can reduce the reaction kinetic conditions, the reaction temperature is greatly reduced, and the reaction time is greatly shortened. The particle size of the generated titanium diboride is reduced, and the molten boron oxide and titanium hydride react on the porous carbon skeleton in a liquid-liquid form to generate the high-purity superfine titanium diboride.

The invention relates to the technical field of titanium alloy preparation and machining, and particularly discloses a method for preparing a titanium alloy workpiece through near-net forming of titanium hydride powder. The method comprises the steps that after titanium hydride powder and intermediate alloy powder are mixed, cold press molding is conducted under 200-800 MPa, and a pressed blank is obtained; sintering the pressed blank and the mold for the first time at the temperature of 500-1200 DEG C, preserving heat for 10-30 minutes, and then cooling; and the pressed blank is taken out of the mold, secondary sintering is carried out at the temperature of 1200-1400 DEG C, cooling is carried out after heat preservation is carried out for 2-4 hours, and a titanium alloy workpiece is obtained. The method does not include the step of partially dehydrogenating the titanium hydride powder before cold press molding. According to the method, the problem that the titanium hydride pressed blank is easy to crack during demolding is fundamentally solved through the first sintering with the mold by utilizing the volume shrinkage effect in the dehydrogenation process, so that the product percent of pass is greatly improved, and meanwhile, the low hydrogen content (llt of a workpiece is ensured; 0.015%), high density (greater than or equal to 99%) and uniform components.

A preparation method of a specific pore size aluminum foam, comprising foaming, the foaming is adding a composite foaming agent and stearic acid in the tackified molten aluminum, and carrying out heat preservation foaming after stirring and dispersing, the composite foaming agent is titanium hydride as the main body, zirconium hydride and calcite as the adjuvant, and the mass ratio of titanium hydride, zirconium hydride and calcite is 5:1~2:0.5~0.8.In the application, TiH2, ZrH2 and calcite are used as the foaming agent, and the calcite is used in combination with stearic acid, so that the pore size structure and the uniformity of the pore distribution in the aluminum foam are controlled, the pore size is mainly distributed between 1~2mm, the pore size variation coefficient is 0.49, the porosity of the aluminum foam reaches 88.4%, the density retention rate of the material is between 108.2~120.4%, the structural stability is excellent, and the aluminum foam has obvious advantages as a heat and sound insulation material.The preparation process can be popularized to the preparation of aluminum-scandium alloy foam, so that the Sc distribution is promoted to be uniform, and the yield platform stress and the energy absorption efficiency are significantly higher than those of the pure aluminum foam.

A composite ceramic substrate and method for producing the same. The composite ceramic substrate includes a ceramic substrate, a circuit board, and a composite adhered structure adhered to the ceramic substrate and the circuit board. The composite adhered structure includes a first active metal layer adhered to the ceramic substrate, a second active metal layer adhered to the circuit board, and a solder layer arranged between the first active metal layer and the second active metal layer. The first active metal layer includes titanium hydride. The second active metal layer includes tin, copper, and titanium hydride. The solder layer includes tin, copper, and titanium hydride.

The invention belongs to the technical field of grinding wheels, and particularly relates to an AMOLED display glass edging grinding wheel binding agent, an edging grinding wheel and a preparation method of the edging grinding wheel. The grinding wheel binding agent comprises, by mass, 50-60 parts of a Cu-Sn alloy metal phase, 20-30 parts of a hydrogenated butadiene-acrylonitrile rubber nano rubber phase, 5-10 parts of nano aluminum oxide reinforcing filler, 3-5 parts of a molybdenum disulfide lubricant and 2-3 parts of a titanium hydride sintering aid. The invention further provides a formula and a preparation method of the grinding wheel. According to the method, the defects of an existing process are overcome, a nano rubber phase of hydrogenated nitrile rubber is combined with a Cu-Sn alloy metal phase, a flexible composite binding agent with flexible buffering and rigid supporting functions is formed, and the effects of buffering grinding vibration and reducing edge cracking are achieved.

This invention relates to the field of new energy vehicle power battery manufacturing technology, specifically a fully automated laser welding and packaging process for lithium iron phosphate battery cells used in new energy vehicles. The process includes: S1. The cell shell is made of 6061 aluminum alloy containing niobium, yttrium, and lanthanum, sandblasted, then ultrasonically cleaned with an ethanol solution containing a silane coupling agent, and dried at 85-95℃; S2. The cover plate is made of 304 stainless steel containing 0.15-0.25wt% zirconium and 0.06-0.08wt% cerium, and the sealing groove is pre-cured with modified polyimide adhesive and then butt-fitted to the shell; S3. The weld seam is pre-coated with a nano-coating containing 0.1-0.3wt% titanium hydride, pulsed welded using a 1064nm fiber laser, and protected with a mixture of argon, helium, and nitrogen gas; S4. Post-weld annealing, ultrasonic treatment by immersion in a titanate aqueous solution, and finally vacuum drying. This process optimizes the shell and cover plate materials, resulting in stable welding quality, high weld strength, good corrosion resistance, improved cell sealing performance and long-term reliability, fully automated operation, and excellent production efficiency and product consistency.

The present application relates to a kind of preparation method of titanium carbide fiber, belong to metallurgy and hard alloy preparation technical field.The present application uses titanium hydride as titanium source, carbon nanotube as carbon source, using molten salt method, in the tube furnace of argon protection, 700~900 ℃ reaction 3~5h, prepared fibrous titanium carbide, product is removed after washing other impurities and obtains high-purity titanium carbide fiber.Sodium chloride and potassium chloride binary salt are used as molten salt medium, which can effectively reduce the reaction temperature and reduce energy consumption.The preparation method of fibrous titanium carbide proposed in the present application has the advantages of low cost, simple process, low reaction temperature, short reaction time, etc.The prepared titanium carbide powder has high crystallinity and uniform particle size distribution.The salt can also be recycled and reused, reducing the synthesis cost and facilitating industrial production.

The invention belongs to the technical field of powder metallurgy, and provides a titanium alloy powder particle uniformity control method which comprises the following steps: step 1, controllable hydrotreating; step 2, carrying out two-stage crushing on the obtained titanium hydride blocks; step 3, carrying out precision airflow crushing and grading integration, and feeding obtained intermediate crushed powder into a closed-loop airflow crushing and grading system to be treated, so as to efficiently generate powder with highly concentrated particle size distribution; fourthly, efficient multi-stage screening is conducted, the collected powder is subjected to final precision screening, an ultrasonic vibration screening system is adopted, three layers of screens are arranged in series, and titanium hydride powder with the uniform particle size is obtained; and step 5, vacuum dehydrogenation treatment. The problems that a traditional product is wide in particle size distribution and low in yield are solved.

A ceramic composite substrate (100) and a method for producing the ceramic composite substrate (100) are provided. The ceramic composite substrate (100) comprises a ceramic plate (1), a printed circuit board (2), and a composite structure (3) adhering to the ceramic plate (1) and the printed circuit board (2). The adhering composite structure (3) comprises a first active metal layer (31), a second active metal layer (32), and a solder layer (33). The first active metal layer (31) contains an active metal material selected from the group consisting of a Group IV metal, a Group V metal, and titanium hydride. The Group IV metal is titanium, zirconium, or hafnium, and the Group V metal is vanadium, niobium, or tantalum. The second active metal layer (32) consists of titanium or titanium hydride. The solder layer (33) comprises tin and copper. The ceramic composite substrate (100) has a tensile strength of 100 N / cm to 340 N / cm.

The invention discloses a composite ceramic substrate and a manufacturing method thereof. The composite ceramic substrate comprises a ceramic substrate, a circuit board and a composite bonding structure for bonding the ceramic substrate and the circuit board. The composite bonding structure comprises a first active metal layer, a second active metal layer and a solder layer. The first active metal layer includes an active metal material, and the active metal material is at least one selected from the group consisting of Group 4 metals, Group 5 metals and titanium hydride. The Group 4 metal is titanium, zirconium, or hafnium, and the Group 5 metal is vanadium, niobium, or tantalum. The second active metal layer is made of titanium or titanium hydride. The solder layer includes tin and copper. The tensile strength of the composite ceramic substrate ranges from 100 N / cm to 340 N / cm. According to the composite ceramic substrate and the manufacturing method thereof, the problems that in an existing ceramic substrate manufacturing method, electromigration possibility is caused due to the fact that high-content silver is used, and the process cost is too high can be effectively solved.

The application provides a tungsten alloy material and a preparation method and application thereof, and the raw material of the tungsten alloy material comprises 90-93 wt% of tungsten, 0.1-1 wt% of an additive and a balance of a binder phase material in percentage by mass; the additive comprises any one or a combination of at least two of hafnium hydride, titanium hydride or zirconium hydride; the tungsten alloy material provided by the application has a tensile strength at room temperature of 1550 MPa or more, an elongation at room temperature of 10% or more and an impact toughness at room temperature of 80 J / cm 2 The above room temperature impact toughness is suitable for armor-piercing materials.

The invention provides a copper-plated composite molybdenum alloy wire and a preparation method thereof, and belongs to the technical field of molybdenum alloy materials, and the preparation method comprises the following steps: firstly, mixing molybdenum powder, La (OH) 3 powder, titanium dihydride powder and zirconium hydride powder, carrying out cold pressing, sintering, rolling, annealing, rotary swaging and drawing to obtain a molybdenum alloy inner core, and carrying out electrolytic polishing, alkali washing, rinsing and drying to obtain the copper-plated composite molybdenum alloy wire. The pretreated molybdenum alloy inner core is obtained; and activating the pretreated molybdenum alloy inner core, sequentially and continuously electroplating in a Ni composite plating solution, a Cu composite plating solution and a Zn-Co alloy plating solution to form a Ni composite base coat, a Cu composite plating layer and a Zn-Co alloy layer, and carrying out short-time thermal diffusion, phosphoric acid cleaning and drying under the protection of an inert atmosphere to obtain the copper-plated composite molybdenum alloy wire. The tensile strength can be improved, and the conductivity and the electrical discharge machining stability can be improved at the same time.

The invention relates to the technical field of electronic equipment protection structures, in particular to a lightweight foamed aluminum-based integrated structural part for an electronic equipment case. The lightweight foamed aluminum-based integrated structural part comprises a gradient foamed aluminum matrix, a bionic ventilation channel and a surface conducting layer. The silicon dioxide coating layer in the modified foaming agent can isolate water vapor to reduce the moisture absorption rate, and the coating layer is gradually decomposed at high temperature, so that the initial decomposition temperature of titanium hydride is increased, the gas production time is prolonged, and pore collapse caused by concentrated gas production is avoided; interface bonding among the modified binder, the reinforced phase and the aluminum powder is converted into chemical bonding from physical adsorption, so that the bonding force of the interface is stronger, and local fracture caused by stress concentration is avoided; a polyvinyl alcohol coating layer of microencapsulated sodium borohydride in the modified reducing agent isolates direct contact with a plating solution, so that the hydrolysis rate is reduced, the effective effect is prolonged, and doped sodium hypophosphite fills lattice defects through rare earth ions, so that the fluctuation range of the reduction rate is reduced.

The invention provides a silicon-based negative electrode material with a three-layer structure and a preparation method thereof, the three-layer structure is composed of a core layer, a middle buffer layer and an outer layer, the core layer is silicon nanoparticles, the middle buffer layer is formed by compounding silicon nitride and titanium nitride, and the outer layer is a conductive carbon protection layer. The preparation method comprises the following steps: S1, uniformly mixing silicon powder, titanium hydride powder and a carbon source to obtain a mixture; s2, heating the mixture obtained in the step S1 in an inert atmosphere to obtain titanium disilicide; s3, calcining the titanium disilicide product obtained in S2 in an ammonia or nitrogen atmosphere to obtain a compound of silicon nitride and titanium nitride; and S4, carrying out carbonization treatment on the product obtained in S3 to obtain the silicon-based negative electrode material with a three-layer structure.

The application belongs to the technical field of solar cells, and particularly relates to a solar cell with a titanium layer and a metal wire current lead-out structure and a manufacturing method thereof, and comprises the following steps: S1, providing a cell piece comprising a semiconductor region and a conductive film layer arranged outside the semiconductor region, and providing a polymer film with a plurality of parallel metal wires arranged on the surface; S2, printing titanium hydride paste outside the semiconductor region and the conductive film layer of the cell piece, and then performing heating to make the titanium hydride paste semi-solidified or physically gelled; S3, parallelly adhering the metal wires of the polymer film to the titanium hydride paste and contact connecting; and S4, then performing heat treatment. The application can form a current lead-out structure with a titanium layer and a metal wire as an electrode to replace fine grids and cancel main grids, and does not need to use silver paste material electrodes; meanwhile, the application has better conductivity and stability, and can effectively improve the conversion efficiency and reliability of the cell.

The invention relates to the technical field of superhard material tools, and discloses a diamond saw blade for cutting granite and a preparation process of the diamond saw blade for cutting granite, the matrix raw materials of the diamond saw blade for cutting granite comprise reduced iron powder, carbonyl nickel powder, reduced cobalt powder, water atomized Cu-Sn pre-alloy powder, Cu-P pre-alloy powder, titanium hydride powder and boron carbide powder. The preparation process comprises the steps of ingredient mixing, cold press molding and step-by-step temperature control hot press sintering, and coordination of exhaust and densification is achieved by accurately controlling the temperature and pressure of solid degassing, liquid-phase relay and in-situ reaction stages. According to the method, the gradient of melting points of the Cu-P and Cu-Sn pre-alloy is utilized to construct a stepped liquid phase, so that the foaming problem caused by conflict between titanium hydride exhaust and liquid phase hole sealing is solved; and the formula does not contain aluminum, strength attenuation caused by hydrolysis of aluminum carbide is eliminated, the density of the saw blade is remarkably improved, the diamond holding force is remarkably improved, and the service life of the saw blade under the wet cutting working condition is remarkably prolonged.

The invention relates to the field of electronic material manufacturing, in particular to electronic paste for an AMB ceramic copper-clad plate, a preparation method of the electronic paste and the AMB ceramic copper-clad plate. The electronic paste comprises a mixture of a solvent, resin and metal powder; wherein the resin comprises at least two kinds of ethyl cellulose of which the viscosity difference is not less than 50 mPa.s; the metal powder comprises silver-copper powder subjected to heat treatment and a mixture of titanium hydride powder with the nanoscale particle size and titanium hydride powder with the micron particle size. By adopting the blending design of ethyl cellulose with specific viscosity difference, the thixotropy and leveling property of the slurry are remarkably improved, so that a printing film layer is more uniform and flat, the problem of degreasing concentration easily generated by a traditional single resin system is effectively avoided, meanwhile, the internal stress is eliminated through the heat treatment process of the silver-copper powder, and the printing quality is improved. And in combination with the optimal proportion of the multi-particle-size titanium hydride, uniform distribution and controllable reaction of active elements are realized, so that the risk of cavity formation in the sintering process is greatly reduced.

The present application relates to the technical field of aluminum alloy composite material, and particularly relates to a wear-resistant aluminum alloy composite material and a preparation method thereof, which comprises the following raw materials in parts by weight: 75-85 parts of aluminum alloy powder, 5-10 parts of ternary reinforcing phase, 3-8 parts of multifunctional nano reinforcing phase, 1-3 parts of titanium dihydride powder and 0.5-1 part of stearic acid; the ternary reinforcing phase is prepared from graphene oxide, carbon nanotube and the like; the multifunctional nano reinforcing phase is prepared from nano cerium oxide and boron nitride nanosheet; and the aluminum alloy composite material is prepared through combination of various preparation processes; the wear-resistant aluminum alloy composite material has high strength, high elongation at break and high wear resistance, and is suitable for fields of aerospace, automobile industry and electronic devices.

This application relates to the field of diamond tool manufacturing technology, and discloses a heat-fatigue-resistant ceramic tile diamond saw blade and its preparation process. The heat-fatigue-resistant ceramic tile diamond saw blade includes a base steel disc and a diamond cutting head welded to its outer edge. The cutting head is made of a mixture comprising: a base matrix powder consisting of 40-50 parts of pre-alloyed copper-nickel alloy powder, 25-35 parts of elemental iron powder, 8-12 parts of elemental cobalt powder, and 13-17 parts of elemental tin powder; 5-10% Invar alloy powder, 1-3% elemental molybdenum powder, and 0.5-1.0% titanium hydride powder added according to the total weight of the base powder; and uncoated single-crystal diamond particles accounting for 15-25% of the total volume of the sintered cutting head. This invention uses a technical solution of pre-alloyed copper-nickel alloy powder combined with Invar alloy powder to adjust the matrix expansion rate, achieving the technical effect of reducing the alternating stress at the interface between diamond and metal binder.

The invention belongs to the field of hydrogen storage materials, and provides a hydride hydrogen storage material and a preparation method thereof. According to the preparation method, a block material is prepared through discharge plasma sintering forming by adopting a multi-level collaborative design of a reactive composite hydride phase formed by magnesium hydride and lithium borohydride, an ordered mesoporous carbon and hexagonal boron nitride composite carrier structure, an atomic layer deposition oxide coating layer, a niobium pentoxide and titanium hydride catalyst and a heat-conducting outer coating; the comprehensive performance that the reversible hydrogen storage mass fraction is 5.5-7.0 wt%, the capacity retention ratio after 50 times of circulation is larger than or equal to 90%, and the temperature gradient in the block is smaller than or equal to 10 DEG C / cm is achieved, and the multiple contradictions between the high hydrogen storage capacity and the block mechanical strength, between the oxide coating layer stability and the hydrogen diffusion rate and between the heat conduction uniformity and the structural integrity are solved. The method has a wide application value in a solid hydrogen storage system.

The application provides a preparation method and application of a 3D printing photocatalyst, and belongs to the technical field of photocatalysts. Zero-valent bismuth, zero-valent titanium, a Lewis acid titanium salt and titanium hydride are used as raw materials, the raw materials are placed in a planetary ball mill and are fully mixed, the mixed material is printed into a precursor by using an SLM 3D printer, and the precursor is calcined in a tube furnace to obtain the photocatalyst. According to the method, the synergistic modification among multiple components is realized, and the prepared bismuth-based photocatalyst is endowed with high catalytic activity and high stability.

The invention relates to the technical field of foamed aluminum foaming, in particular to a foamed aluminum foaming production process based on electrified production equipment, which comprises the following steps: smelting, tackifying, stirring and foaming, cooling and demolding. According to the invention, the nano aluminum oxide has high hardness and high thermal stability, and can become reinforced mass points of a foamed aluminum pore wall framework after being uniformly dispersed in molten aluminum, so that the compressive strength and the deformation resistance of the foamed aluminum are remarkably improved after the molten aluminum is cooled and molded, and organic functional groups are introduced into the surface of the modified foamed aluminum; weak chemical bond combination with metal bonds on the surface of molten aluminum can be formed, particle aggregation is broken, and uniform dispersion in the molten aluminum is achieved. After the tackifier is grafted and modified by maleic anhydride, carboxyl is introduced into a polyvinyl alcohol molecular chain to form a coordinate bond with Al < 3 + > in molten aluminum, so that the interfacial tension is reduced, the thermal decomposition temperature is increased, and the interaction between the tackifier and the molten aluminum is enhanced; the modified foaming agent can avoid the situation that titanium hydride reacts with oxygen to generate titanium oxide without foaming capacity, and the utilization rate of the foaming agent is reduced.

The application belongs to the technical field of hydrogenated pre-alloy powder preparation, and particularly relates to a short-process method for preparing low-gap-impurity hydrogenated pre-alloy powder, which comprises the following steps: S1: mixing hydrogenated titanium powder, alloy powder and / or ceramic powder according to a preset ratio to obtain mixed powder; S2: adding ammonium bicarbonate particles to the mixed powder and uniformly mixing; S3: performing die pressing or cold isostatic pressing on the composite powder obtained in step S2 to obtain a powder compact; S4: performing vacuum sintering on the powder compact at a temperature increasing rate of 5-20 DEG C / min, keeping at 100-150 DEG C for 0.5-1 h, keeping at 1200-1400 DEG C for 2-4 h, and cooling in the furnace; S5: when the furnace temperature drops to 500-700 DEG C, high-purity hydrogen is introduced into the furnace and kept for 1-2 h, and the furnace is cooled to room temperature; and S6: mechanically crushing the obtained hydrogenated pre-alloy block under argon protection and performing screening to obtain hydrogenated pre-alloy powder with a required particle size. The application greatly shortens the process window temperature and time of hydrogenation and reduces the difficulty of mechanical crushing.

The application discloses a modified aluminum alloy for network connection fittings and a preparation method thereof. The modified aluminum alloy is prepared from the following raw materials in mass fraction: 95.7-99.2% of aluminum alloy powder, 0.5-2% of titanium hydride powder, 0.2-2% of rare earth metal powder and 0.1-0.3% of carbon fiber coated with a SiC coating on the surface by PVD. The preparation method comprises the following steps: mixing the aluminum alloy powder, the titanium hydride powder and the rare earth metal powder to obtain a mixture, ball-milling the mixture under the protection of inert gas, drying the mixture, mixing the mixture with the carbon fiber coated with the SiC coating on the surface by PVD under the protection of an argon atmosphere to obtain a secondary mixture, and sintering and hot forging the secondary mixture to obtain the modified aluminum alloy for network connection fittings. The modified aluminum alloy for network connection fittings has excellent tensile strength and toughness, and no obvious intergranular corrosion, and can be well applied to network connection fittings.

The present application relates to the field of powder metallurgy, and specifically provides a vacuum environment treatment method for powder hot isostatic pressing titanium alloy.The treatment method comprises: S100, under the protection of inert atmosphere, mixing and treating titanium or titanium alloy matrix powder with hydrogenated powder to obtain mixed powder, filling the mixed powder in a container, and performing controllable dehydrogenation treatment on the container; S200, under the condition of no air exposure, placing the container treated in S100 into a hot isostatic pressing furnace, and performing hot isostatic pressing treatment to obtain a rough part; S300, performing vacuum dehydrogenation annealing treatment on the rough part to obtain the powder hot isostatic pressing titanium alloy.By introducing titanium hydride as an endogenous hydrogen source in the powder, and combining with the segmented controllable dehydrogenation, the stage pressurized hot isostatic pressing and the subsequent vacuum dehydrogenation annealing treatment, the present application can effectively improve the alloy density and microstructure uniformity, reduce internal porosity and inclusions, and thus improve the ductility and fatigue performance of the material.

The application relates to the field of ceramic materials, in particular to a ceramic material for a fuse and a preparation method thereof, wherein the ceramic material is made of an alumina / graphene composite powder, titanium hydride and a sintering aid; the ceramic material prepared by the application has excellent mechanical properties and can meet the use requirements of the fuse.

The invention provides a preparation method for rapidly preparing low-oxygen-content titanium hydride powder, and relates to the technical field of metal chemical engineering, the method sequentially comprises the following steps: SP1 raw material preparation: crushing and screening titanium or titanium alloy cast ingots, residual materials or cuttings to obtain granular raw materials; sp2 vacuum rolling desorption drying is conducted, and treatment is conducted for 1-2 h at the temperature of 120-180 DEG C and the vacuum degree smaller than or equal to 10 Pa; sp3 is subjected to vacuum preheating activation to 300-450 DEG C and stays for 5-30 min; the method comprises the following steps: carrying out primary enhanced hydrogenation on Sp4, and under the conditions of 500-650 DEG C and 10-100 kPa, spraying or permeating hydrogen downwards through a distributed hydrogen supply structure, so that the hydrogen and settled particles are in parallel flow or counter flow contact to generate a hydrogenation product; sp5 dehydrogenation-deoxidation coupling is carried out, vacuum dehydrogenation is carried out at the temperature of 700-850 DEG C and the pressure of 0.1-50 Pa, and magnesium steam / calcium steam is introduced for steam deoxidation; carrying out secondary hydrogenation and phase determination on Sp6; and after cooling to be less than or equal to 150 DEG C, cyclone separation and closed filtration are performed, and a finished product is collected. According to the method, the hydrogenation end point can be judged, deoxidation is stable, continuous closed production is achieved, and low-oxygen powder is obtained.

The invention discloses a method for rapidly preparing silver-copper-titanium foil strip brazing filler metal, and belongs to the technical field of active brazing filler metal. The preparation method comprises the following steps: (1) uniformly mixing silver-copper alloy powder and titanium powder or titanium hydride powder, pressing into a block blank, and sintering to obtain a silver-copper-titanium block blank or a silver-copper titanium hydride block blank; (2) the block blank is subjected to multi-group cold rolling and intermediate annealing circulation treatment till the thickness meets the requirement, and plate strip brazing filler metal is obtained; and (3) carrying out vacuum annealing and cold rolling on the plate strip brazing filler metal to obtain the finished product silver-copper-titanium foil strip brazing filler metal. The preparation method is optimally designed, generation of copper-titanium compounds is effectively inhibited, the types and forms of the copper-titanium compounds are regulated and controlled, the machinability and activity of the brazing filler metal are guaranteed, the preparation period of the brazing filler metal is remarkably shortened, and high-efficiency and high-quality preparation of the foil strip brazing filler metal with the high titanium content is achieved.

The invention belongs to the technical field of solar cells, and particularly relates to a solar cell with a titanium layer and metal wire current lead-out structure and manufacturing thereof.The manufacturing method comprises the steps that S1, a cell piece comprising a semiconductor area and a conductive film layer arranged outside the semiconductor area is provided, and a polymer film with a plurality of metal wires arranged in parallel on the surface is provided; s2, titanium hydride slurry is printed outside the semiconductor region and the conductive film layer of the battery piece, and then heating is carried out to enable the titanium hydride slurry to be semi-cured or physically gelated; s3, metal wires of the polymer film are attached to the titanium hydride slurry in parallel and are in contact connection with the titanium hydride slurry; and S4, then carrying out heat treatment. A current lead-out structure with a titanium layer and a metal wire can be formed to serve as an electrode to replace a fine grid, a main grid is omitted, and a silver paste material electrode does not need to be adopted; meanwhile, the conductive performance and the stability are better, and the conversion efficiency and the reliability of the battery can be effectively improved.

A method for preparing an in-situ filled metal tube with aluminum foam belongs to the field of porous metal materials technology. This invention involves treating a foaming agent under a protective atmosphere, preparing an alloy, adding the foaming agent, casting a foamed preform, surface treatment, induction heating for foaming, and cooling to prepare the aluminum foam-filled metal tube component. During the preparation process, the foaming agent, titanium hydride, is treated at a high temperature above 600°C under a protective atmosphere. Then, an aluminum alloy is used to prepare the melt, which is melted using molten salt brazing flux before reaching the melting temperature of the preform, removing the oxide film from the preform and the inner wall of the thin-walled tube. Finally, induction heating is used to rapidly raise the temperature of the preform to the melting and foaming temperature, ensuring a tight bond between the preform and the thin-walled tube and preventing further oxidation. The method provided by this invention has a simple preparation process, produces uniformly porous aluminum foam, and enables a tight bond between the aluminum foam and the metal tube.