12 results about "Sintered titanium" patented technology

This invention provides a method for measuring pulsed laser parameters based on titanium nanofilms, belonging to the field of pulsed laser parameter measurement methods. The method first prepares titanium nanoparticle ink; then, a titanium deposition layer is prepared by inkjet printing or spin coating; finally, the titanium deposition layer is placed within the laser scanning range, a single-point or line scanning mode is set, and images of the sintered titanium region are recorded. The corresponding laser parameters are obtained through image processing software analysis. This method can intuitively, conveniently, and cost-effectively obtain key pulsed laser parameters, and can accurately obtain parameters such as spot size and repetition frequency.

The application provides a powder sintered titanium diffusion layer and a preparation method and application thereof, and belongs to the technical field of regenerative fuel cells, and comprises the following steps: preparing a coating A and a coating B, coating the coating A on a substrate to obtain a green film, coating the coating B on the surface of the green film to obtain a composite green film, and performing pretreatment, degreasing and sintering on the composite green film to obtain a powder sintered titanium diffusion layer with a hydrophobic Ti6O surface. The application provides a powder sintered titanium diffusion layer and a preparation method and application thereof, and realizes simple preparation of a titanium-based diffusion layer with adjustable surface hydrophilicity and hydrophobicity.

The application provides a sintered titanium plate (1) for hydrogen production by electrolysis of water, comprising a support (2) for providing support for the sintered titanium plate, and a titanium layer (3), wherein a plurality of mesh holes (21) are arranged on the support (2) in a regular or irregular distribution; the titanium layer (3) is composed of titanium powder, and covers at least one side of the support (2) and is integrally formed with the support (2) to form a plate-shaped body; the thickness of the sintered titanium plate (1) is 0.01-0.05 mm through the combination of the support (2) and the titanium layer (3), and the sintered titanium plate (1) has good mechanical strength, water permeability and electrical conductivity.

The application relates to an equipment and process for sintering a titanium alloy based on a graphite vacuum sintering furnace, which comprises a furnace body, a graphite box arranged in the furnace body, a vacuum pumping device communicated with the graphite box, a heating device comprising a water-cooled medium-frequency induction coil assembly, a heat-conducting insulation assembly and an auxiliary temperature control assembly, the heat-conducting insulation assembly being connected with the water-cooled medium-frequency induction coil assembly and the auxiliary temperature control assembly and being arranged in heat conduction and insulation between the water-cooled medium-frequency induction coil assembly and the auxiliary temperature control assembly, the water-cooled medium-frequency induction coil assembly being arranged outside the graphite box and used for heating the graphite box, and the auxiliary temperature control assembly being used for heat exchange with the water-cooled medium-frequency induction coil assembly when the water-cooled medium-frequency induction coil assembly heats the graphite box, so as to assist in adjusting the temperature rise of the graphite box when the water-cooled medium-frequency induction coil assembly heats the graphite box. The application can make the adjustment process quickly respond in place and shorten the response time, and can also guarantee the adjustment accuracy in place and the precision of the adjustment process.

This invention discloses an infrared detection device and method for membrane electrode leakage. The device includes a leak detection base plate, a leak detection upper plate, an infrared camera assembly, and a four-column press. The upper surface of the leak detection base plate has a groove, within which a lower sintered titanium felt is embedded. The upper surface of the first sintered titanium felt is flush with the upper surface of the leak detection base plate, forming a flat support surface. A positioning assembly on the leak detection base plate passes through a positioning hole on the membrane electrode under test. A second sintered titanium felt and a titanium mesh are sequentially arranged above the membrane electrode under test. The leak detection upper plate is pressed onto the titanium mesh. An infrared camera captures the temperature distribution image of the upper surface of the membrane electrode under test, and the presence of a high-temperature region determines whether leakage has occurred. This invention achieves non-destructive testing consistent with the actual operating conditions of the membrane electrode, and has the advantages of high detection accuracy, high speed, no damage to the membrane electrode, simple structure, and low energy consumption.

A method (100) of obtaining a full-density sintered titanium component can include providing (110) a titanium component having a starting density of 92% or less. The titanium component can be heated to and held at a sintering temperature (120) under a sintering atmosphere containing hydrogen with a pressure during sintering less than 0.2 MPa. This can sinter (130) the titanium component to greater than 92% theoretical density forming a sintered component. The sintered component can be held (140) at a densification temperature while applying a gaseous pressure of 0.2 MPa to 100 MPa with a densification atmosphere, to hot isostatically press (HIP) the sintered component to full density having greater than 99.5% relative density to form the full-density sintered titanium component.

The invention relates to equipment and technology for sintering titanium alloy based on a graphite vacuum sintering furnace, and the equipment comprises a furnace body which is internally provided with a graphite box; the vacuumizing device is communicated with the graphite box; the heating device comprises a water-cooling medium-frequency induction coil assembly, a heat conduction and insulation assembly and an auxiliary temperature control assembly, and the heat conduction and insulation assembly is connected with the water-cooling medium-frequency induction coil assembly and the auxiliary temperature control assembly and is arranged between the water-cooling medium-frequency induction coil assembly and the auxiliary temperature control assembly in a heat conduction and insulation mode; the water-cooling medium-frequency induction coil assembly is arranged outside the graphite box and used for heating the graphite box, and the auxiliary temperature control assembly is used for exchanging heat with the water-cooling medium-frequency induction coil assembly when the graphite box is heated by the water-cooling medium-frequency induction coil assembly so as to assist in adjusting the temperature rise when the graphite box is heated by the water-cooling medium-frequency induction coil assembly. The adjusting process can be quickly responded in place, and the response time is shortened; meanwhile, accurate and in-place adjustment can be guaranteed, and the precision of the adjustment process is guaranteed.

This invention relates to a battery stack (2) comprising a plurality of individual cells (9, 10, 11, 12), each individual cell (9, 10, 11, 12) comprising: a membrane electrode system (3) having a cathode (6), an anode (4), and a membrane (5) located between the cathode and the anode; an anode gas diffusion layer (7) or a sintered titanium component, the anode gas diffusion layer being disposed on the exposed side of the anode (4) and having a first thickness gradient along the machine transverse (y); and a cathode gas diffusion layer (8) disposed on the exposed side of the cathode (6), the cathode gas diffusion layer having a second thickness gradient along the machine transverse (y), wherein: in a In a single cell (9, 10, 11, 12), the anode gas diffusion layer (7) and the cathode gas diffusion layer (8) are arranged relative to each other such that a first thickness gradient of the anode gas diffusion layer (7) and a second thickness gradient of the cathode gas diffusion layer (8) are opposite; or in two or more single cells (9, 10, 11, 12), each anode gas diffusion layer (7) is arranged relative to each other such that the total thickness gradient of these anode gas diffusion layers (7) is minimized and / or in two or more single cells (9, 10, 11, 12), each cathode gas diffusion layer (8) is arranged such that the total thickness gradient of these cathode gas diffusion layers (8) is minimized.

This utility model relates to the field of catering products technology and discloses a titanium enamel antibacterial cookware, including a tableware body. The tableware body has a titanium alloy base layer inside, and a sintered titanium enamel layer is provided on the inner surface of the titanium alloy base layer. Antibacterial particles are uniformly dispersed on the inner side of the sintered titanium enamel layer, and an outer ceramic layer is provided on the outer side of the titanium alloy base layer. The titanium alloy base layer provides a high-strength support skeleton, and the sintered titanium enamel layer on its surface forms a dense protective barrier. The antibacterial particles (nano-titanium dioxide and silver particles) embedded in this layer constitute the core antibacterial mechanism. When the tableware is exposed to natural light or artificial light, the antibacterial particles trigger a photocatalytic reaction, continuously releasing reactive oxygen free radicals and silver ions, directly destroying bacterial cell membranes and blocking DNA replication, achieving an ultra-high broad-spectrum antibacterial rate. This design breaks through the limitation of traditional coatings being easily worn off. The Mohs hardness of the sintered titanium enamel layer ensures that the antibacterial particles are firmly encapsulated. Even with long-term wear and tear, the inner particles can still slowly release antibacterial factors.

The utility model provides a composite sintered titanium plate and a water electrolysis hydrogen production electrolytic bath using the composite sintered titanium plate, and the composite sintered titanium plate comprises at least one layer of supporting net (10) which is of a preset net structure; the at least one layer of sintered titanium plate (11) is bonded with the at least one layer of supporting net (10) through a preset plate body structure; wherein the at least one layer of sintered titanium plate (11) and the at least one layer of supporting net (10) are integrally formed into a composite plate (1) with a preset thickness; according to the composite sintered titanium plate, the bonding face of the sintered titanium plate (11) and the supporting net (10) can be set to be in a specific shape, the sintered titanium plate (11) is pressed to be thin on the basis that higher sintering bonding strength is formed, and the water permeability or the water passing performance is improved.

The invention discloses a method for preparing a high-gloss titanium alloy, and belongs to the field of powder metallurgy. The preparation method comprises the following steps: firstly, taking Ti-6Al-4V and Ti-6Al-4V-0.5 Fe powder as raw materials, and carrying out pressing or injection molding to obtain a green body; then, the green body sample is subjected to degreasing and pressureless vacuum sintering to obtain a titanium alloy sintered sample, and the sintered sample is subjected to surface nitriding modification and precise polishing treatment; finally, the surface glossiness of the titanium alloy nitrided for 1 hour reaches 607 + / -5 Gu, the microhardness reaches 705 + / -88 HV1.0, and the roughness is lower than 0.041 [mu] m. By adding a trace amount of Fe element (0.5 wt.%) and liquid phase sintering to refine grains and reduce pores, nitriding treatment is performed after sintering to form an extremely thin and compact titanium nitride layer, and then multi-stage precision polishing is matched, so that the surface hardness is improved, the roughness is remarkably reduced, the glossiness is improved, and the method has the characteristics of simple process, economy, high efficiency, suitability for large scale and the like.

Disclosed is a method for producing titanium or a titanium alloy, with which titanium or a titanium alloy having an oxygen concentration of 0.15 mass% (1,500 mass ppm) or less is produced by melting, casting, or sintering titanium (Ti) or a titanium alloy using a container that contains a rare earth metal oxyhalide salt as a main component. With the method for producing titanium or a titanium alloy, titanium or a titanium alloy having a low oxygen concentration is produced by melting, casting, or sintering titanium or a titanium alloy using a container of a rare earth metal oxyhalide, to which a rare earth metal and a rare earth metal halide salt are added as auxiliary agents, so as to directly remove impurity oxygen in the titanium or the titanium alloy by utilizing a generation reaction of a rare earth metal oxyhalide salt.