494 results about "Titanium metal" patented technology

The invention discloses a preparation method of a nano lanthanum hexaboride reinforced titanium-based composite material, which comprises the following steps: performing low-energy ball milling and high-energy ball milling on a pure titanium metal powder and / or titanium alloy powder base material and a nano lanthanum hexaboride powder reinforced phase to obtain composite powder; sintering in a rapid hot-pressing sintering furnace, and cooling to obtain a LaB6 / Ti-based sintered blank; and carrying out heat-preservation hot rolling in a vacuum heat treatment furnace. The invention further discloses the nanometer lanthanum hexaboride reinforced titanium-based composite material and application. The nanometer lanthanum hexaboride reinforced titanium-based composite material has excellent strength and ductility, the tensile strength reaches 1035 MPa, the percentage elongation after fracture is 5%-25%, and the strength is improved by 60% or above compared with that of pure titanium; the preparation method is short in process, high in efficiency, low in production cost, high in universality and suitable for various titanium or titanium alloy base materials, and the composite material has good application prospects in the fields of radar, aviation, aerospace, automobiles, electronic industry and biomedicine.

The invention relates to the technical field of metal composite materials, in particular to a titanium-aluminum-titanium layered metal composite plate and a machining method and application thereof. The titanium-aluminum-titanium layered metal composite plate comprises a metal composite plate body, wherein the metal composite plate body comprises a first titanium metal layer, an aluminum metal layer and a second titanium metal layer; a first interface transition layer is formed between the first titanium metal layer and the aluminum metal layer, and a second interface transition layer is formed between the second titanium metal layer and the aluminum metal layer; the thickness of the metal composite plate body ranges from 0.05 mm to 0.2 mm. The metal composite plate body is formed by pouring molten aluminum between two solid titanium sheets subjected to thinning treatment, and after solidification, diffusion heat treatment and rolling are sequentially carried out. The thickness can be controlled between 0.05 mm and 0.2 mm, the ultrathin thickness enables the composite board to have light weight, high flexibility and excellent mechanical performance, and the ultra-thin composite board is suitable for the field with strict requirements for weight and size. The metal composite plate not only has high strength and good conductivity, but also has excellent corrosion resistance.

A titanium non-stick pan including a pan body. A base material of the pan body being a metal composite plate with a multi-layer composite structure that includes a base metal layer and a titanium metal layer arranged in a stack. The base metal layer is bonded to the titanium metal layer by metallurgical bonding. The titanium metal layer forms a concave-convex structure of a uniform thickness. The concave-convex structure includes a plurality of interconnected concave-convex unit cells, each of which includes first convex parts and a concave part enclosed by the first convex parts. The concave part includes a second convex part disposed in the concave part. The second convex part has a top lower than each first convex part, and a surface of the titanium metal layer at the concave-convex structure forms an oxidation layer with a thickness between 8 μm and 40 μm.

The invention discloses a preparation method of a bionic cornea stroma lens for refractive correction, which comprises the following steps: solution preparation: dissolving type I collagen in an acetic acid solution, adding a film aid, fully stirring, and centrifugally defoaming to obtain a type I collagen composite solution; the I-type collagen composite solution is poured into an assembling groove, the curvature radius of titanium metal is set to be 6.8-8.0 mm, the titanium metal serves as a working electrode material, platinum metal serves as a counter electrode material, current parameters are set according to the needed thickness of the lens blank, the density is 3.50-6.50 mA / cm < 2 >, and the thickness of the lens blank is set to be 3.50-6.50 mA / cm < 2 >; a high-transparency cornea embryo material which is uniform in curvature in all directions and similar to human cornea fiber structure arrangement is formed after electrochemical assembly and cross-linking curing, accurate cutting machining is carried out through excimer laser, a concave / convex matrix lens with the needed correction degree is obtained, the correction precision is high after cornea interlayer implantation, and the correction precision is high. And meanwhile, the compound has excellent performance in the aspects of in-vivo stability and biological safety.

The invention belongs to the technical field of material preparation, and aims to solve the problem that the comprehensive performance of a material is affected by non-uniform microstructure of the material due to the fact that the distribution and grain size of each phase in a metal ceramic matrix are difficult to accurately control in the conventional preparation process of the metal ceramic material. Therefore, the invention provides the preparation method of the fiber-reinforced metal ceramic material, and the preparation method comprises the following steps: pretreating silicon carbide fibers; mixing and grinding the titanium metal powder and the silicon carbide ceramic powder according to a preset proportion; adding silicon carbide fiber particles and putting the mixture into an ultrasonic mixer; adding a dispersing agent and a binding agent and mixing again; sequentially carrying out cold isostatic pressing molding and hot pressing molding on the mixture; and sequentially carrying out pre-sintering, high-temperature sintering, cutting and surface treatment on the obtained green body. The strength, toughness, hardness, high temperature resistance, wear resistance and corrosion resistance of the prepared metal ceramic material are remarkably improved, the high-performance requirement of the aviation field can be better met, and powerful support is provided for the aviation industry.

The invention discloses a carbon nano tube reinforced tungsten carbide titanium metal ceramic material as well as a preparation method and application thereof, and belongs to the field of metal ceramic materials. According to the invention, a spark plasma coupling high-frequency induction sintering method is adopted, CNTs are uniformly dispersed in a material matrix through a method of dispersing CNTs through dry ball milling again, and the uniformly dispersed CNTs improve the discharge environment, reduce the sintering current and reduce the energy consumption under the spark plasma coupling high-frequency induction effect in the sintering process. The high-compactness, high-strength and high-wear-resistance (W, Ti) C-based metal ceramic material is prepared at the sintering temperature of 1350 DEG C by utilizing the ultrahigh conductive complementary effect of the (W, Ti) C metal ceramic material and the CNTs.

The invention relates to the technical field of metal surface treatment, in particular to a method for achieving titanium metal surface rapid boronizing through electric field induction nanometer assembly in molten salt, titanium dioxide powder, boron powder, inorganic salt and a nanometer particle wrapping agent are evenly mixed, and the molten salt containing nanometer TiB2 is obtained after heating reaction. Graphite and a titanium metal part are put into molten salt containing nano TiB2, the graphite serves as a positive electrode, the titanium metal part serves as a negative electrode, the surface area ratio of the positive electrode to the negative electrode is (3-10): 1, the nano TiB2 in the molten salt is assembled on the surface of the titanium metal part under the action of an electric field to form a boronizing layer, and the boronizing speed is 60-500 microns / h. Compared with an existing high-temperature boronizing technology with active boron atoms as a constituent unit, the high-temperature boronizing technology has the advantages that the boronizing speed can be remarkably increased, the high-temperature boronizing treatment time of titanium metal is shortened, energy is saved, cost is reduced, and meanwhile the negative influence of the high-temperature environment on the organization structure and the mechanical property of a titanium metal part is eliminated.

Surface-treated cutting blades are provided, comprising: (a) a metal cutting blade body; and (b) a self-assembled monolayer formed from an alkoxysilane and / or organophosphonic acid. The surface-treated cutting blades may further comprise one or more layers formed from chrome, tantalum, titanium, an aqueous solution of a metal salt, and / or an organometallic compound, applied between the cutting blade and the self-assembled monolayer. Also provided is a method of reducing deposition of a contaminant on a surface of metal cutting blade, comprising: (a) contacting the surface either directly or through an intermediate organometallic layer with a fluorinated material in a diluent; (b) forming a film on the surface; and (c) exposing the cutting blade to the contaminant.

The invention discloses a nano organic titanium polymer and titanium-based polymer alloy copolymer as well as a preparation method and application thereof, and belongs to the technical field of material application. According to the invention, the defects in the prior art are overcome, titanium metal fine powder and organic epoxy resin or other polymer resin are blended, a nanocrystallization process is carried out in a planetary ball-milling reaction kettle, and complete chain and bond breaking, graft bonding and hybrid polymerization processes are carried out through a mechanochemical reaction, so that the titanium metal fine powder is obtained. According to the present invention, the nanometer organic titanium polymer and the titanium-based polymer alloy copolymer with the titanium element as the matrix are synthesized, the nanometer organic titanium polymer and the titanium-based polymer alloy copolymer are adopted as the matrix film forming material to be applied to the coating material, and the coating material can be widely used in the industrial heavy corrosion prevention field.

The invention discloses a titanium metal welded pipe laser cutting device, and relates to the technical field of laser cutting, the titanium metal welded pipe laser cutting device comprises a processing table arranged on the ground; the supporting frame is fixedly mounted at the top of the machining table; the laser cutting equipment is arranged at the bottom of the supporting frame; the fixed seat is fixedly mounted at the top of the processing table; the electric push rod is fixedly mounted on the inner wall of the fixed seat; the rotating frame is rotationally mounted at the output end of the electric push rod; the driving clamping plate is mounted on the surface of the rotating frame in a sliding manner; the pulley yoke is fixedly mounted on the inner wall of the machining table; the titanium metal welded pipe is cut through the laser cutting equipment, the cutting position and the cutting angle can be freely adjusted through cooperation of the electric push rod and the rotating frame during cutting, and the cutting effect is improved.

The present application relates to the technical field of image processing, and particularly relates to an image enhancement method and system for titanium metal surface detection. The method comprises the following steps: converting a titanium metal surface image to be processed from an RGB space to an HSI space, obtaining a luminance component, decomposing an initial reflection component into a plurality of high-frequency sub-band coefficients and a low-frequency sub-band coefficient, determining anisotropy degrees of each pixel point, generating an anisotropy saliency map, enhancing the high-frequency sub-band coefficients corresponding to the pixels with anisotropy degrees higher than a preset threshold, otherwise, inhibiting, reconstructing an enhanced reflection component by using the adjusted high-frequency sub-band coefficients and the low-frequency sub-band coefficient without processing, obtaining an enhanced luminance component, converting the enhanced luminance component back to the RGB space, and outputting a final enhanced image. That is, the scheme of the present application can obtain an enhanced image with a clear defect contour, few artifacts and preserved original color information, greatly improving the accuracy and reliability of subsequent automatic defect recognition.

The invention relates to the technical field of batteries, and discloses a battery and a battery pack. The shell comprises a shell main body and a cover plate, at least one end of the shell main body is provided with an opening, the cover plate covers the opening and is electrically connected with the battery cell, the cover plate comprises a plurality of laminated plate bodies, the plate body far away from the battery cell is a first plate and the plate body close to the battery cell is a second plate along the lamination direction of the plurality of plate bodies, the first plate comprises a non-titanium metal element, and the second plate comprises a non-titanium metal element. The second plate comprises a titanium element, the conductivity of the metal element is larger than that of the titanium element, the ratio of the thickness d of the first plate to the thickness e of the second plate is a, the resistivity of the cover plate is b, the content of the titanium element in the second plate is c%, and the requirement that c * b / a is larger than or equal to 11 and smaller than or equal to 130 is met. By controlling the relationship among the content of titanium, the ratio of the thickness d of the first plate to the thickness e of the second plate and the resistivity of the cover plate, the over-current capability of the cover plate is improved, the resistance in the current transmission process is effectively reduced, and the temperature rise of the cover plate is prevented from being increased.

The utility model relates to the technical field of plasma cladding, and discloses surface treatment equipment for titanium metal processing of a composite stainless steel pot, which comprises a plasma cladding machine, a fixed block and a material, the fixed block is positioned on the front side of the plasma cladding machine, and the material is positioned on the top of the fixed block. The top of the material is horizontally aligned with the bottom of the output end of the plasma cladding machine; clamping mechanisms used in cooperation with materials are arranged on the left side and the right side of the top of the fixing block correspondingly. A transmission mechanism used in cooperation with the clamping mechanism is arranged in an inner cavity of the fixing block. An assembling mechanism used in cooperation with the fixing block is arranged on the front side of the plasma cladding machine. The problems that in the process that a plasma cladding machine is used for conducting titanium alloy powder cladding machining on the composite stainless steel pot, no assembly capable of assisting in limiting the composite stainless steel pot exists, so that a user needs to conduct manual supporting spraying, and the machining stability of the composite stainless steel pot is reduced are solved.

The invention provides a titanium molten salt electrolysis device design method based on numerical simulation guidance, and relates to the technical field of molten salt electrolysis device structure design. Aiming at the problems of unreasonable structural design, high energy consumption, low space utilization rate and the like of a kiloampere-level and above electrolysis device in the industrial process of preparing titanium metal through melting electrolysis, the method comprises the following steps: firstly, obtaining key electrolysis parameters through basic experiment research, and then applying the key electrolysis parameters to a numerical simulation model; modeling and multi-physics field coupling are carried out based on commercial simulation software, thermal field distribution of the electrolytic cell is simulated, and then the structural design and spatial layout of the electrolytic cell are optimized, so that self-heating design of efficient space utilization and efficient energy utilization of the electrolytic cell at the kiloampere level and above is achieved. The method is simple and easy to operate, environmentally friendly, high in economic applicability, low in cost, high in efficiency and beneficial to industrial large-scale production and popularization.

Provided is a dielectric thin film including a metal oxide. The metal oxide includes bismuth, sodium, barium, and titanium, at least a part of the metal oxide is a tetragonal crystal having a perovskite structure, and a (100) plane of at least a part of the tetragonal crystal is oriented in a normal direction of a surface of the dielectric thin film.

The invention relates to the technical field of titanium metal smelting, in particular to a precise sponge titanium distillation production process which comprises the following steps: after the sealing performance of an assembled reactor is qualified, heating the first to fourth areas of a distillation furnace to 1000-1050 DEG C; a vacuum unit composed of a roots pump and an oil diffusion pump is opened, the vacuum degree is accurately controlled in the 15th hour, the 30th hour, the 45th hour, the 60th hour, the 75th hour, the 90th hour and the 105th hour in the distillation process, the corresponding vacuum degree ranges are 3000-3500Pa, 1000-1200Pa, 400-450Pa, 50-80Pa, 30-50Pa, 10-15Pa and 3-7Pa in sequence, the vacuum degree is monitored 1h in advance in each stage, and the vacuum degree is maintained by adjusting the rotating speed through a variable frequency motor or starting a standby pump for combined air exhaust; after distillation is finished, an inert gas circulating cooling system is adopted for cooling, and the cooling rate is smaller than or equal to 10 DEG C / min. According to the process, the vacuum degree and the temperature are precisely regulated and controlled in stages, impurities in the sponge titanium can be effectively removed, the product purity is improved, meanwhile, it is guaranteed that the production process is stable and controllable, and the production efficiency and the product quality consistency are improved.

The invention discloses a preparation method of a high-hardness carbonized layer on a titanium metal surface, which comprises the following steps: step 1, selecting high-purity graphite as a carbon diffusion source, and selecting a high-strength titanium alloy as a matrix titanium alloy; 2, the high-strength titanium alloy is placed in a vacuum box to be dried after being cleaned, and a graphite block is tightly pressed on the surface of the high-strength titanium alloy to form a diffusion couple; 3, the upper end and the lower end of the diffusion couple are connected with a positive electrode and a negative electrode correspondingly, the diffusion couple is put into a vacuum box, interface atoms of the high-strength titanium alloy and graphite are mutually diffused under the action of an electric field, and a TiC wear-resisting layer is prepared on the surface of the high-strength titanium alloy; 4, the high-strength titanium alloy with the TiC wear-resistant layer on the surface is put into a vacuum heat treatment furnace to be subjected to low-temperature annealing treatment, and a high-hardness carbonized layer is prepared on the surface of the high-strength titanium alloy; the carbonization layer can improve the surface hardness of the titanium alloy and improve the strength and wear resistance of the titanium alloy.

The invention relates to the technical field of image processing, in particular to an image enhancement method and system for titanium metal surface detection. The method comprises the following steps: converting a to-be-processed titanium metal surface image from an RGB space to an HSI space, obtaining a brightness component of the to-be-processed titanium metal surface image, decomposing an initial reflection component into a plurality of high-frequency sub-band coefficients and a low-frequency sub-band coefficient, determining the anisotropy degree of each pixel point, and generating an anisotropy saliency map; and enhancing the high-frequency sub-band coefficient corresponding to the pixel of which the anisotropy degree is higher than a preset threshold value, otherwise, suppressing the high-frequency sub-band coefficient, reconstructing an enhanced reflection component and an enhanced brightness component by utilizing the adjusted high-frequency sub-band coefficient and the unprocessed low-frequency sub-band coefficient, converting the enhanced reflection component and the enhanced brightness component back to an RGB space, and outputting a final enhanced image. According to the scheme of the invention, the enhanced image with clear defect contour, few artifacts and reserved original color information can be obtained, and the accuracy and reliability of subsequent automatic defect identification are greatly improved.

The invention discloses a treatment method for improving binding force of metal and lacquer, which comprises the following steps: S1, coating primer on the surface of the metal, and curing to obtain a primer layer; the primer is prepared from the following components in parts by weight: 40 to 50 parts of Chinese lacquer, 10 to 15 parts of tung oil and 5 to 8 parts of lithopone; and S2, the primer layer is coated with lacquer, and a finish paint layer is obtained after curing. The invention further discloses the titanium metal / lacquer composite material obtained through the treatment method. According to the treatment method for improving the binding force of the metal and the lacquer, the stability after the metal and the lacquer are combined can be improved, and meanwhile the physical performance of the titanium metal and the attractiveness and protection performance of the lacquer are reserved.

The invention provides an oblique coil electromagnetic classificator for separating weak magnetic impurities from strong magnetic concentrate, which comprises a separation cylinder, an ore feeding device and a flushing device, an ore feeding pipe of the ore feeding device extends into the separation cylinder from the top end of the separation cylinder, the flushing device is arranged below the ore feeding pipe, and an oblique coil is arranged on the outer side of the separation cylinder, so that the weak magnetic impurities can be separated from the strong magnetic concentrate. Magnetic lines of force are obliquely distributed, magnetic linkages formed by magnetic particles are oblique, the whole magnetic linkages can be efficiently impacted in cooperation with vertical component force Fz of water flow of the flushing device, and scattering of magnetic aggregates is facilitated; the tail control flat coil and the concentrate gathering flat coil at the upper end and the lower end effectively control tailings and concentrates respectively, so that the separation efficiency of strong magnetic concentrates and weak magnetic impurities is improved, for example, in the iron-titanium separation operation of vanadium titano-magnetite ore dressing, ilmenite mixed into iron ore concentrates can be reduced, the grade of the iron ore concentrates can be improved, and titanium metal resources can be fully recycled.

The invention relates to a preparation method of trimethoxy pentamethyl cyclopentadienyl titanium, which comprises the following steps: (1) vacuumizing a reactor for replacement, detecting the content of moisture and oxygen in gas in a reaction kettle by an instrument, and stopping vacuum replacement when the content is lower than 50ppm; (2) pentamethyl cyclopentadienyl titanium trichloride, ammonia and a solvent are added into a reactor, methanol is dropwise added into the reactor, a crude product trimethoxy pentamethyl cyclopentadienyl titanium is obtained through a reaction, the reaction temperature ranges from-30 DEG C to 50 DEG C, and the pressure ranges from-0.05 MPa to 0.05 MPa; (3) filtering and desalting the crude product trimethoxy pentamethyl cyclopentadienyl titanium obtained in the step (2) in an inert environment; and (4) the filtrate obtained in the step (3) is refined, pure trimethoxy pentamethyl cyclopentadienyl titanium is obtained, and the metal purity reaches 5N. Methanol is used as a raw material, the synthesis route can be shortened, the cost is reduced, and meanwhile, the material is relatively safe.

The utility model discloses a titanium semi-solid thermoforming device which comprises an upper die, a lower die, an injection mechanism and a storage barrel, the lower die is fixed on a workbench, the upper die and the lower die are combined to form a cavity, one side of the lower die is provided with a connector connected with the injection mechanism, the connector is communicated with the cavity, and the storage barrel is connected with the injection mechanism. The injection mechanism comprises a connecting cylinder, an injection hammer head and an injection oil cylinder, the injection hammer head is telescopically connected into the connecting cylinder, the injection oil cylinder is arranged at one end of the connecting cylinder and connected with the injection hammer head, the other end of the connecting cylinder is connected with the connector, and the periphery of the storage cylinder is wrapped with a heating cover; the storage barrel is arranged at the upper end of the middle of the connecting barrel, a discharge port of the storage barrel is communicated with the interior of the connecting barrel, the vibrating mechanism is connected above the storage barrel in a lifting manner and comprises a vibrating motor and a vibrating bar, and a vibrating bar plumb bob is arranged above the storage barrel.

The embodiment of the invention provides a preparation method of a titanium foil strip with high elongation and good surface microcosmic quality. The preparation method comprises the steps that a sponge titanium raw material is smelted and machined through a primary electron beam cold hearth smelting furnace; the titanium metal plate blank is coated with an anti-oxidation coating to form an anti-oxidation coating; the titanium metal plate blank coated with the anti-oxidation coating is subjected to heating, heat preservation, hot rolling and continuous annealing shot blasting acid pickling treatment; the hot-rolled titanium coil is subjected to first-rolling-process cold rolling, and continuous annealing, shot blasting and acid pickling are conducted after cold rolling; carrying out multi-rolling-process cold rolling and semi-finished product annealing by adopting a cold rolling unit and an argon protection cover type furnace; carrying out finished product rolling on the annealed master tape by adopting a cold rolling unit; performing finished product heat treatment on the titanium strip by adopting an argon shield continuous annealing furnace; and straightening the annealed titanium strip by adopting a tension straightening machine. According to the embodiment of the invention, the titanium foil strip with high elongation and good surface microcosmic quality is obtained, and the prepared titanium foil strip is excellent in forming performance and surface microcosmic quality.

The application provides a steam heating cooking device with a titanium inner container and belongs to the technical field of daily necessities. The steam heating cooking device solves the technical problems of poor safety, complex structure and poor heat preservation effect in the prior art. The steam heating cooking device comprises a pot body, the pot body comprises an inner container made of titanium metal or titanium alloy, an outer shell one made of metal is arranged on the periphery of the inner container, and a vacuum cavity is arranged between the inner container and the outer shell one. The inner container made of titanium metal or titanium alloy can improve the cleanliness, avoid the penetration of harmful substances during cooking and improve the safety.

The invention discloses a dermatoglyph knurling roller and a processing technology thereof, and relates to the technical field of knurling rollers, in order to improve the wear resistance and corrosion resistance of the surface of the knurling roller, on the basis of a steel roller, the surface of the steel roller is coated with an anti-corrosion and wear-resistant metal powder coating through laser cladding, and a nano graphene material with a self-lubricating property is added into the steel roller, so that the anti-corrosion and wear-resistant metal powder coating is formed. After titanium dioxide is loaded on the surface of a nano graphene material and reduced, nano titanium metal particles are loaded on the surface of nano graphene, so that the bonding strength between the nano graphene and alloy powder after laser melting is improved, and the stripping phenomenon of a coating in the subsequent pressing process is avoided; therefore, on the basis of ensuring the overall strength of the steel roller, the wear resistance and corrosion resistance of the surface of the steel roller are improved, and the service life of the coating is effectively prolonged.

A titanium non-stick pan including a pan body. A base material of the pan body being a metal composite plate with a multi-layer composite structure that includes a base metal layer and a titanium metal layer arranged in a stack. The base metal layer is bonded to the titanium metal layer by metallurgical bonding. The titanium metal layer forms a concave-convex structure of a uniform thickness. The concave-convex structure includes a plurality of interconnected concave-convex unit cells, each of which includes first convex parts and a concave part enclosed by the first convex parts. The concave part includes a second convex part disposed in the concave part. The second convex part has a top lower than each first convex part, and a surface of the titanium metal layer at the concave-convex structure forms an oxidation layer with a thickness between 8 μm and 40 μm.

The utility model relates to a multi-angle heating scraping therapy plate which comprises a support, a control panel arranged in the support and a battery connected with the control panel, a control panel switch arranged on the control panel, a button arranged on the surface of the support and corresponding to the control switch, and a heating device arranged on the peripheral wall of the support and connected with the control panel for heating. The heating device is used for conducting scraping therapy after being heated, the heating device comprises a heating film connected with the control panel and a heating plate arranged outside the heating film, heat generated by heating of the heating film is transmitted to the heating plate so that the heating plate can be heated, and the heating plate conducts scraping therapy. The heating film is arranged on the whole circle of the peripheral wall of the support, the heating plate is arranged outside the heating film, heat is transmitted to the heating plate after the heating film is heated, then the heated heating plate conducts scraping therapy operation, the heating plate is made of titanium metal, the heat conduction performance is better, skin cannot be injured in the using process, using is more convenient, and meanwhile the heating plate is arranged on the whole circle, so that using is more convenient. And the device can be used at any angle and is higher in universality.

The present invention relates to the technical field of metal composite materials, and particularly relates to a titanium-aluminum-titanium laminated metal composite plate and its processing method and application. The titanium-aluminum-titanium laminated metal composite plate includes a metal composite plate body, and the metal composite plate body includes a first titanium metal layer, an aluminum metal layer, and a second titanium metal layer; a first interface transition layer is formed between the first titanium metal layer and the aluminum metal layer, and a second interface transition layer is formed between the second titanium metal layer and the aluminum metal layer; the thickness of the metal composite plate body is 0.05 - 0.2 mm. The metal composite plate body is formed by pouring molten aluminum liquid between two solid titanium sheets after thinning treatment, and after solidification, it is successively subjected to diffusion heat treatment and rolling. The thickness of the present invention can be controlled between 0.05 - 0.2 mm, and the ultra-thin thickness makes the composite plate have light weight, high flexibility and excellent mechanical properties, and is suitable for fields with strict requirements on weight and volume. This metal composite plate not only has high strength and good electrical conductivity, but also has excellent corrosion resistance.

The present invention belongs to the technical field of titanium metal processing waste acid treatment, and specifically relates to a method for regenerating titanium metal pickling waste liquid. The regeneration method comprises the following steps: adding a fluorosilicic acid solution to the titanium metal pickling waste liquid and mixing uniformly, then adding a potassium salt solution, stirring the reaction at room temperature, and centrifuging or filtering after the reaction is complete to separate the solid portion as a potassium fluorotitanate / potassium fluorosilicate complex; and the liquid portion as a regenerated titanium metal pickling liquid. The method of the present invention can significantly improve the titanium ion recovery rate without destroying the pickling liquid components. The titanium metal pickling waste liquid can be regenerated and reused, and has the advantages of good treatment effect and simple treatment process.

The invention discloses a metal-semiconductor direct current friction nanometer generator based on a depletion mode u-GaN / AlGaN / AlN / GaN high electron mobility transistor. The generator comprises a titanium (Ti) metal friction layer and a depletion mode GaN HEMT friction layer, and direct current is generated through the interface friction volt effect. The core of the invention lies in that high-concentration two-dimensional electron gas (2DEG) and surface state characteristics in the u-GaN / AlGaN / AlN / GaN heterojunction are utilized, and the friction volt effect is combined, so that efficient mechanical energy-electric energy conversion is realized. In the dynamic Schottky contact of the D-GaN HEMT and metal, unbalanced carriers in u-GaN Cap are excited by friction, electrons and holes are separated by a built-in electric field, surface state electrons of u-GaN Cap obtain friction energy to be transited to a conduction band, and a Schottky barrier is overcome to form current; in the sliding process, metal and a semiconductor interact to increase the surface state density, a large number of electrons are excited, chemical bonds are formed, two-dimensional electron gas is formed on an AlN / GaN interface and flows back under a reverse electric field, the electron concentration is maintained, current is continuously generated, and finally direct current is formed in an external circuit.