12 results about "Titanium fiber" patented technology

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 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 discloses a hybrid fiber polyurea composite flexible anti-puncture material and a preparation method thereof, a titanium fiber felt and an aramid fiber felt are superposed to form a fiber reinforcement, the fiber reinforcement is placed in a vacuum bag film system, and then a polyurea resin system is introduced through vacuum negative pressure for curing molding, and the invention relates to the technical field of composite materials. According to the hybrid fiber polyurea composite flexible anti-puncture material and the preparation method thereof, the polyurea, titanium fiber felt and aramid fiber felt hybrid composite material is adopted, materials with different characteristics are systematically integrated, and the multi-stage and synergistic protection effect is achieved. The titanium fiber felt has excellent rigidity and can make contact with the thorns at the first time on the surface of the protective layer, the concentrated stress of the thorns is effectively passivated and dispersed, and the thorns are prevented from easily penetrating through fiber gaps. When being subjected to high-speed impact, a polyurea molecular chain generates violent friction and internal friction, and a large amount of impact kinetic energy is converted into heat energy. When the stabbing device tries to penetrate, the polyurea layer can wrap the stabbing tip like viscous plasticine, and the stabbing tip is grabbed.

The utility model discloses a titanium fiber continuous cleaning device which comprises conveying belt frames, a conveying belt is fixedly connected between the conveying belt frames on the two sides, a fixing plate is fixedly connected to the upper portions of the conveying belt frames, a water inlet pipe is fixedly connected to the interior of the fixing plate, and two sets of water distribution pipes are fixedly connected to the interior of the water inlet pipe. An adjusting pipe is rotationally connected between the water distribution pipes on the two sides, a plurality of sets of nozzles are fixedly connected to the lower portion of the adjusting pipe, second fixing pieces are fixedly connected to the two sides of the adjusting pipe, first fixing pieces are fixedly connected to the outer sides of the water distribution pipes, and the first fixing piece on one side is fixedly connected with a first spring; the first spring is arranged on the outer side of the water distribution pipe in a sleeving mode, a gear ring is fixedly connected to one side of the second fixing piece on the other side, a tooth groove matched with the gear ring is formed in one side of the first fixing piece, the surface of the titanium fiber felt can be cleaned in a spray washing mode, the cleaning angle can be adjusted, and therefore the titanium fiber felt cleaning device can adapt to different environmental conditions and cleaning requirements.

The application relates to the technical field of fabrics, and discloses a moisture-absorbing, sweat-releasing and antibacterial titanium fiber fabric and a preparation method thereof. The 2,4-bis(N,N-dihydroxyethylamino)-6-[N-(3-aminopropyl)methyl acrylamide]-1,3,5-homotriazine is used to graft modify the polyamide fiber fabric, the hydrophilic amide bond, imino and a large number of hydroxyl groups are grafted to the fabric surface, the hydrophilicity and the moisture regain of the fabric are significantly improved, and the moisture-absorbing and sweat-releasing performance of the fabric is improved. Meanwhile, the limiting oxygen index and the flame-retardant performance are improved. A large number of hydroxyl groups on the surface of the polyamide fabric can interact with the hydroxyl groups on the surface of the titanium dioxide precursor generated by hydrolysis of tetrabutyl titanate, the generated nanometer titanium dioxide can be uniformly loaded on the fabric surface, more photocatalytic antibacterial sites are exposed, and the antibacterial performance of the fabric is significantly improved.

The utility model discloses a titanium fiber waste recovery processing device which comprises a base, the upper surface of the base is fixedly connected with an extrusion box, a first hydraulic cylinder is fixedly installed on the side face of the extrusion box, the output end of the first hydraulic cylinder is fixedly connected with a push plate, an extrusion plate is arranged in the extrusion box, a sliding groove is formed in the side face of the extrusion plate, and a sliding block is arranged in the sliding groove. The upper surface of the base is fixedly connected with a second hydraulic cylinder, the output end of the second hydraulic cylinder is fixedly connected with a lifting plate, the lifting plate is hinged to one end of the connecting plate, a motor is fixedly installed at the bottom of the base, and the output end of the motor is fixedly connected with the threaded rod. The connecting plate drives the sliding block to move in the sliding groove, the push plate is made to conduct extrusion, titanium waste machining at multiple stations is achieved, the titanium waste recycling efficiency is improved, the use cost and the labor cost of the whole device are saved, the ejector plate moves upwards, the formed titanium waste is ejected out, and the machining efficiency is improved. The problem that titanium waste is difficult to take out after the push plate is formed is solved.

The application relates to a preparation method of titanium felt toughened boron carbide ceramics and belongs to the technical field of composite materials. Firstly, boron carbide ceramic powder is pre-ground and pre-mixed, different particle size sintered two phases are crushed and uniformly mixed, Al powder is added in a small number of times and a large amount for pre-mixing, and mixed powder with good sphericity and solid rate is obtained through spray granulation; secondly, a titanium fiber felt pretreatment process is carried out, titanium fiber felt cutting is carried out by using a modified tooling, a cold pressing device or an upper-middle-lower three-layer ceramic green body is used, and a more dense and closely fitted titanium fiber felt-boron carbide (Al)-titanium fiber felt-boron carbide (Al)-titanium fiber felt sintering structure is obtained through cold isostatic pressing; thereby, a high-strength cold blank is obtained, a sintering process is set through different reaction stages, and finally, high-toughness high-strength boron carbide-based ceramics are obtained. After final sintering, the average hardness of the titanium felt toughened boron carbide ceramics is above 49 Gpa, the fracture toughness can reach 8.5 MPa.m 1 / 2 The above, the bending strength can reach above 580 MPa.

The invention provides a titanium diffusion layer with a hierarchical pore structure and gradient interface design and a preparation method thereof, and the preparation method comprises the following steps: respectively carrying out non-woven laying on drawn titanium fibers with different wire diameters, and then carrying out pre-pressing treatment to obtain a single-layer fiber felt; respectively carrying out vacuum sintering on the single-layer fiber felts to obtain single-layer fiber felts; the single-layer fiber felts are sequentially stacked according to the sequence that the diameters of the drawn titanium fibers increase from small to large, the stacked multi-layer fiber felts are subjected to secondary pre-pressing treatment, and a fiber multi-layer body is obtained; and the fiber multilayer body is subjected to secondary vacuum sintering and then cooled, and the titanium diffusion layer is obtained. The prepared titanium diffusion layer is used for a PEM hydrogen production system to solve the problems that in the prior art, a single hole structure is limited, interface bonding is poor, and mass and heat transfer is uneven, so that the overall reaction efficiency of the system is improved, the interface contact resistance is reduced, and the durability and stability of the diffusion layer are enhanced.

The utility model relates to the technical field of chromatographic column tubes, and discloses a liquid chromatographic column tube suitable for blood sample introduction, which comprises a column tube body, porous titanium sieve plates are arranged at two ends of the column tube body, threads are arranged at two ends of the column tube body, the average aperture of each porous titanium sieve plate is 20-50 microns, the porous titanium sieve plates are made of titanium, and the diameter of each porous titanium sieve plate is 20-50 microns. The porous titanium sieve plate is a porous structure wafer formed by sintering titanium powder or titanium fibers at high temperature, the outer wall of the porous titanium sieve plate is wrapped with the annular polyether-ether-ketone, and the outer wall of the annular polyether-ether-ketone is round. According to the utility model, adsorption of protein and the like in a blood sample is reduced through biological inertness of a titanium material so as to reduce the blocking risk, and the porous structure of the titanium sieve plate and the straight-through round holes in the column tube synergistically optimize the flow of the blood sample and a mobile phase; a stable environment and guarantee are provided for separating the blood sample in the column according to the action difference of each component and a stationary phase and analyzing and acquiring component information through a detector.

The sweater comprises a sweater body and sleeves, the sweater body comprises a front part and a rear part, the front part and the rear part are connected in a sewing mode, the sleeves are symmetrically arranged on the two sides of the sweater body, and the fixed ends of the sleeves are connected with the front part and the rear part in a sewing mode. The front part, the rear part and the sleeves are all formed by weaving titanium fiber yarn and cotton yarn through a sesame bottom jacquard weaving method, the titanium fiber yarn forms a first pattern area of the surface layer of the sweater, and the cotton yarn forms a second pattern area of the surface layer; the sweater suit comprises the sweater, and the sweater absorbs moisture, is breathable, good in wearing comfort, easy to clean and good in sunscreen and antibacterial effects.

The invention discloses an airborne radioactive Po-210 purification device, which is used for being arranged in a purification system for covering gas containing Po-210 species, and comprises a Po-210 aerosol purification module and a Po-210 steam purification module which are sequentially arranged along an airflow direction, the metal fiber felt is made of metal fibers, and the metal fibers are selected from at least one of stainless steel fibers, nickel fibers, copper fibers, iron fibers and titanium fibers; the surface of the metal fiber is loaded with a first active material having a strong chemical adsorption effect on Po-containing species, and the Po-210 steam purification module comprises a porous carrier and a second active material loaded on the surface of the porous carrier, covering gas containing Po-210 species sequentially flows through the Po-210 aerosol purification module and the Po-210 steam purification module, so that the Po-210 aerosol and the Po-210 steam are respectively filtered, captured and chemically adsorbed, and the airborne radioactive Po-210 is purified.