225 results about "Titanium coating" patented technology

The present invention discloses composite cold spraying and vacuum sintering process for preparing porous titanium coating. Mixed titanium-magnesium powder is first sprayed onto the roughened titanium or titanium alloy substrate to form composite titanium-magnesium coating, which is then sintered at high vacuum and high temperature to obtain porous titanium coating. Thus produced porous titanium coating has no oxide, thickness greater than 0.5 mm, opened and communicated pore structure, pores of 30-200 microns, porosity of 30-65 %, and metallurgical combination with the substrate with combination strength higher than 60MPa and elastic modulus adjustable in 30-50 GPa. The present invention is suitable for making bearing hard tissue implant, such as artificial joint, artificial bone, artificial tooth root, etc. with improved long term stability.

The invention discloses a titanium-coated aluminium laminated composite plate used for an insoluble anode in electrolysis process and a preparation method thereof, belonging to the technical field of wet-process metallurgy. The preparation method comprises the following steps of: adopting one or more of techniques of electric arc spraying, spray deposition, composite rolling, melt plating and thelike to coat an aluminium layer on the single surface of the surfaces of the titanium plate, obtaining two titanium/aluminium composite plates which are then prepared into the titanium-coated aluminium laminated composite electrode material which takes aluminium as an inner core (for improving the electric conductivity of the electrode) and is coated by titanium at the outer layer. The prepared titanium-coated aluminium laminated composite plate has the advantages of excellent interface coherency, good electric conductivity, good corrosion resistance, low cost and the like, a coating titaniumanode prepared by adopting the laminated composite plate as a substrate leads the internal resistance of inert electrode to be reduced, the current distribution to be even and the electrolytic productpurity to be improved, thus achieving the effects of saving energy and reducing consumption; and the bath voltage is reduced by 10 to 30 percent compared with that of the pure titanium coating anode.

This invention is that a kind of multi-functional green nanometer two of environmental protection is oxidized Titanium coating and method of preparing, this coating can not merely be solved now. There is coating that is able to bear staining difference, is able to bear waiting difference, not the skills, such as environmental protection, etc. Skill question, it is clean to give the coating at the same time, disinfect and disinfect, Purify new functions, such as air, etc., it is the green environmental protection of more than one kind of kinetic energy Coating. Coating this by titanium white powder, exceed detailed silicic acid aluminium, nanometer Oxidize the titanium and disperse the liquid two times, the calcium carbonate of light quality, the calcium carbonate of heavy quality, Silicon lime powder, lithopone, talc powder, dispersant is moist. It is the dispersant, thickener, disappear and steep and pharmaceutical, become membrane auxiliary, flow flat pharmaceuticla, water, the cream base material, etc. make up, it is simple to prepare the craft. The cost performance is high, have very good economic benefits and social result Benefit.

A coated polycrystalline cubic boron nitride cutting insert useful in a cutting tool for removing material from a workpiece, and a method for making the same. The cutting insert including a polycrystalline cubic boron nitride substrate with a rake surface and at least one flank surface, and a cutting edge formed at the juncture between the rake surface and the flank surface. A wear-resistant coating scheme is on the polycrystalline cubic boron nitride substrate. The wear-resistant coating scheme includes the following coating layers. An inner coating layer region is on at least some of the rake surface and at least some of the flank surface of the polycrystalline cubic boron nitride substrate. An alumina-containing coating layer region, which has at least one exposed alumina coating layer, is on the inner coating layer region. The exposed alumina coating layer exhibiting a post-blasted stress condition with stress ranging between about 50 MPa (tensile stress) and about −2 GPa (compressive stress) as measured by XRD using the Psi tilt method and the (024) reflection of alumina. The exposed coating layer is the result of wet blasting an outer titanium-containing coating layer from the surface of the alumina-containing coating layer region.

The invention is concerned with antibiotic resistance biological activity coating and its produce method. It adopts NaOH solution and supersaturated calcium phosphate solution with Ag+ to dispose the titanium coating, makes the coating with biological activity and antibiotic resistance capability. The titanium coating with Ag+ ion is 0.01 to 0.1 mm. Dispose titanium powder on the metal basal body (for example, titanium alloy) which having been cleaned and disposed with sand blasting through vacuum plasm sprying technology with favourable technology parameters. Dip the prepared titanium coating into 3 to 10 mol NaOH solution and keep warm for 12 to 48 hours under 20 to 80 degree, take out and ultrasonic clean with deionized water for 2 to 6 times and each time is 3 to 10 minutes, dry for 12 to 48 hours with 20 to 80 degree. Dip the dried titanium coating into supersaturated calcium phosphate solution with Ag+ and keep warm for 12 to 48 hours with 20 to 37 degree and dry for 2 to 6 hours with 100 to 150 degree. The titanium coating has nice antibiotic resistance performance without obvious cytotoxicity.

The invention discloses a slurry electrolysis method applied to leach molybdenum and rhenium from molybdenum ore concentrate. The method comprises the following steps: molybdenum ore concentrate containing rhenium is put into an electrolysis bath, wherein, water is added in the electrolysis bath to keep the mass rate of liquid to solid in the range of 10-20: 1, and a mechanical stirring device is used for stirring the slurry obtained so as to cause the slurry to be in suspension status; sodium chloride is added into the electrolysis bath as an electrolyte, appropriate quantity of dextrin with the mass percentage concentration of 0.1 percent is added and sodium carbonate is added to control pH value of the slurry in electrolysis process at 8 to 10; after slurry mixing, a titanium plate of ruthenium-iridium-titanium coating is used as an anode, a pure titanium plate is used as a cathode, direct current is provided to carry out slurry electrolysis, simultaneously stirring is carried out, and the molybdenum and the rhenium are leached from the molybdenum ore concentrate after electrolysis. The method has the advantages of moderate reaction conditions, simple technology, high leaching rate of the molybdenum and the rhenium, and no pollution, wherein, the leaching rate of the molybdenum is not less than 99 percent, the leaching rate of the rhenium is not less than 95 percent, and the electrolysis current efficiency is not less than 92 percent, thereby being capable of effectively recycling the rhenium from the molybdenum ore concentrate and improving the utilization rate of molybdenum resource.

The invention discloses a silicon/silicon oxide-titanium dioxide-carbon core-shell structure composite particle, and belongs to the field of lithium ion battery negative electrode materials. The composite particle is of a compact three-layer structure and comprises a core, a middle layer and an outer layer, wherein the core contains silicon or an oxide thereof, the middle layer contains titanium dioxide TiO2, and the outer layer is a carbon-containing C layer. In addition, the invention also provides a preparation method of the composite particle, comprising a titanium coating step and a carbon coating step, wherein the titanium coating step and the carbon coating step are both completed in a fluidized bed reactor. The core-shell structure composite particle prepared by the preparation method disclosed by the invention is high in specific capacity and has excellent cycling stability and rate capability.

The invention relates to an electro-winning method of cupric nitrate solution. The invention relates to an electro-winning method by which the cupric nitrate solution produced by the wet-process metallurgy of precious metal is directly electrolyzed to reclaim the copper and nitric acid. The method adopts a titanium coating electrode plate as the anode and adopts stainless steel as the cathode to electrolyze the cupric nitrate solution in an electrolytic tank directly. During the electrolytic process, the cupric nitrate electrolytic solution is led into a blowing tank and the flow forms a circulation; air or nitrogen is blown into the cupric nitrate solution in the blowing tank to remove the nitrogen dioxide gas in the solution. The cupric nitrate electrolytic solution is led into a vacuum separation chamber and the flow forms a circulation; the pressure is reduced to separate the nitric acid in the solution to keep the nitric acid concentration of the electrolytic solution between 40g/L to 80g/L. The electro-winning method can efficiently solve the problem of corrosivity of the nitric acid during the process of nitric acid system electro-winning, thereby achieving the purpose of protecting the anode and preventing the cathode from back-dissolving; therefore, the direct electro-winning of the cupric nitrate can be carried out continuously.

The invention discloses lithium ionic sieve adsorbent with the self-cleaning function and preparation method and application thereof. The preparation method includes the steps of 1), under nitrogen atmosphere, dissolving titanium containing organic matters in organic solvent, adding a manganese lithium ionic sieve adsorbent powder, and performing stirring and ball milling to obtain suspension liquid; 2), drying the suspension liquid to obtain the powder, grinding and calcining the powder to obtain the adsorbent powder coated with the nano titanium-containing oxide; 3), blending the adsorbent powder coated with the nano titanium-coating oxide and the polymer containing solvent, and dropwise adding the mixture into water to obtain the millimeter-scale spherical adsorbent uniform in size. The lithium ionic sieve with the self-cleaning function is prepared by coating the surface of the manganese lithium ionic sieve adsorbent with the titanium-coating oxide, super-hydrophilic properities of the titanium-containing oxide are utilized, impurities or organic matters possibly adhered to the surface of the adsorbent in the actual environment of brine during adsorption can be washed out, stability of the adsorbent is improved, and service life of the adsorbent is prolonged.

The invention discloses a preparation method of a ZTA particle-reinforced steel matrix composite broken wall based on chemical method activating treatment. The preparation method comprises the following steps: 1) ZTA particles are subjected to high temperature salt bath plating, and uniform titanium coatings are obtained on the surfaces of the ZTA particles; 2) nickel layers are formed at the peripheries of the titanium coatings; 3) the ZTA particles after plating are sintered, the ZTA particles are connected mutually to form a pore-shaped prefabricated body; and 4) the prefabricated body is fixed to a moulded end face or working face, then steel matrix material molten metal is cast by adopting a cast-infiltration technology, and after cooling, the ZTA particle-reinforced steel matrix composite broken wall is obtained. Active elements introduced in the preparation method can improve the interface boding property between the ZTA particles and metal, mechanical bonding between the ZTA particles and metal is changed to metallurgical bonding, and a macro bonding situation is shown in figure 1. The preparation method can improve the wear resistance of a composite, and ensures that the service life of the ZTA particle-reinforced steel matrix composite broken wall is long.

This invention relates to a spraying gas protection device of multi-hole Ti coating atmosphere plasma and its method. Said device is composed of a base with a hole at the center, a hollow tube connected with the base, a protecting gas inlet mouthpiece designed on the hollow tube, a protection gas distribution chamber, a jet exhaust of the protection gas and a powder mouthpiece. Said device is connected with the nozzle on an ordinary atmosphere plasma spraying device to spray Ti coating to meet the needs of using different sizes of Ti powder as the raw material to be immersed in alcohol and mixed evenly with supersonic waver to be dried and manufactured to Ti coating with optimized spraying parameters under the protection cover of an inert gas formed in this device.

The invention relates to a coating method of a super-hard antifriction abrasion-resistance composite film layer on the surface of titanium alloy and a titanium alloy material. A magnetron sputtering method is adopted, a titanium film, a carbonitride titanium film and a diamond-like film are sequentially deposited on the surface of the titanium alloy, and a Ti/TiCN/DLC composite film layer is established, wherein the titanium film serves as a metal bonding layer, the carbonitride titanium film serves as a bearing layer, and the diamond-like film serves as a surface antifriction abrasion-resistant layer. Compared with the prior art, the coating method of the super-hard antifriction abrasion-resistance composite film layer on the surface of the titanium alloy and the titanium alloy material effectively overcome the defects that a single-layer diamond-like film is poor in bonding force, and the antifriction effect of a carbonitride titanium coating is not remarkable. The method is simple in technique and can be widely applied to antifriction, abrasion resistance and reinforcement of the surface of the titanium alloy.

The invention discloses a surface treatment process for forming alloy by carrying out titanium-coating and titanizing to a metal surface. The surface treatment process comprises the following steps: a, adding metal magnesium, granular titanium sponges and metal devices needing surface treatment into a container, and sealing the container; b, heating up the container, and carrying out degassing treatment in the container at the temperature of 140-310 DEG C; c, continuously heating up the container, and ventilating titanium tetrachloride to the container during a heat-up process, and maintaining the pressure in the container at 0.02-0.04 MPa; and keeping the temperature constant for 9-11 hours when the temperature is raised to 990-1010 DEG C; and d, taking out and cooling the metal devices from the container. The surface treatment process disclosed by the invention is simple, scientific and reasonable; the effect for forming the alloy by titanium-coating and titanizing is excellent; and the surface treatment process has a good popularization and application value.

The invention relates to a method for spraying a titanium coating on a substrate. The method is characterized by comprising the following steps: performing substrate pre-processing to clear away oil and dust on the surface of the substrate; performing one-time or repeated spraying to prepare the titanium coating on the surface of the substrate. The titanium coating is sprayed by adopting a supersonic plasma coating method, and can be sprayed on the substrates such as steel, aluminum and aluminum alloy. Through the adoption of the titanium coating spraying technology, original titanium equipment can be made of steel, aluminum and aluminum alloy, and then is sprayed with a titanium coating, so that the titanium equipment has excellent corrosion resistance, and meanwhile, the manufacturing cost of the titanium equipment is reduced.

The invention discloses a titanium heat exchanger for an air conditioner, and a processing method thereof. The titanium heat exchanger comprises a heat exchange pipe and cooling fins. The surface of each cooling fin is provided with a TiO2-containing titanium coating, the titanium coating contains CuO and Ag2O, the mass percentage of CuO is 10%-15%, and the mass percentage of Ag2O is 10%-15%. When the light is sufficient, the titanium coating of the heat exchanger is decomposed under the photochemical catalysis of the ultraviolet light, and various organics attached on the titanium oxide surface are removed. When the light is insufficient, titanium oxide also can make the internal electrons excited to generate hydroxyl atomic groups and hydrogen peroxide under the action of nano silver and nano copper, so as to decompose the organics. Therefore the heat exchanger has long-term and stable effect of anti-bacterial and mildew-removal.

The invention discloses a heat-pump water heater titanium evaporator and a manufacturing method thereof. The heat-pump water heater titanium evaporator comprises evaporation pipes and fins, wherein titanium coatings are coated on the fins, each titanium coating is mainly composed of nanometer titanium dioxide, nanometer silver nitrate, polymeric dispersants and adhesives, and the nanometer titanium dioxide is processed through surface organic and inorganic compound film wrapping. Due to the facts that the titanium coating is mainly composed of anatase nanometer titanium dioxide, and the nanometer titanium dioxide is processed through surface organic and inorganic compound film wrapping, various organics attached to the surfaces of the coatings can be dissolved and removed, and therefore a heat exchanger has long-term stable antibiosis and mildew removing effects, and the problem that in an existing heat-pump water heater, heat exchanging property is affected by dust and bacterium which are easily generated on the fins of the evaporator is solved.

The present invention relates to an open-typed porous titanium coating method, which acquires the biological activity on the implant surface. The present invention is applicable for the biological fixing-typed implants in the orthopedics and dentistry, which can improve the bone growth effect of the implant and the Osseo integration strength. The method is that the titanium ball in accordance with the implanting requirements is arranged on the implant surface after cleaning the implant material. The processed implant material is transported to the vacuum furnace, which is vacuum pumped till above 10^-2 Pa before heating and sintering. The sintering method is as following. The room temperature is heated to the sintering temperature of 1,000 DEG C to 1,600 DEG C at the speed of 1 DEG C per minute to 100 DEG C per minute. The temperature is maintained for 0 hour to 10 hours. The temperature reduces from the sintering temperature to the room temperature at the speed of 0.1 DEG C per minute to 100 DEG C per minute. The implant material with the sintering titanium coating is taken out and put into the alkali solution with the concentration from 0.1N to 10N, before heating till 40 DEG C to 100 DEG C. The implant material is soaked for 0.5 hours to 100 hours before cleaning by the distilled water and the medical alcohol. The last step is packaging.

The invention discloses a method of preparing a titanium coating through atmosphere supersonic plasma spraying based on gas protection. The method comprises the following steps of: step one. cleaning and roughening the surface of a base material; step two. feeding Ti powder into a supersonic plasma spraying gun, feeding an Ar gas serving as a protecting gas into a protecting gas hole of a radial protecting gas positive pole nozzle or an axial protecting gas positive pole nozzle, wherein the flow rate of Ar is 100-190L/min, and the amount of the fed powder is 15-50g/min; and step three. maintaining a spraying distance at 60-90mm, and spraying the surface of the base material. The method has the beneficial effects that the content of oxide and nitride in the coating can be reduced; the high-purity Ti coating can be obtained; and the corrosion resistance of the coating is improved.

The invention provides a preparation method of an in situ coating modified NCA cathode material. The method includes the steps of: 1. dissolving a titanium source in anhydrous ethanol to prepare a titanium coating solution; 2. adding a Ni0.80Co0.15Al0.05(OH)2 precursor, a lithium source and a complexing agent into the titanium coating solution, and performing heating stirring at 60-80DEG C to obtain a sol; 3. carrying out drying, grinding and sieving on the sol in order, placing the obtained powder mixture in a resistance furnace to perform sintering at 800-900DEG C for 10-20h, and conducting cooling to obtain a sintered material; and 4. crushing and sieving the sintered material so as to obtain a NCA cathode material coated with Li4Ti5O12 on the surface. The coated material prepared by the method provided by the invention is a lithium-containing compound, adopts Li4Ti5O12 as the coating layer, and can greatly improve the cycle performance under the premise of not significantly affecting the capacity of the NCA cathode material.

A new titanium-based implant is disclosed, which is formed by a titanium coating manufactured with biomaterials with applications in osseous implantology. The nanotopographical characteristics of these implants inhibit bacterial adhesion and the formation of a bacterial biofilm on the surface, whilst simultaneously presenting suitable properties for the adhesion, stretching and proliferation of bone-forming cells. Moreover, the invention comprises a method for manufacturing the implant by means of oblique-incidence techniques and the use thereof in osseous implantology.

The invention provides a method for preparing a multidimensional photocatalytic material, comprising the following steps of: (1) preparing a titanium coating material; and (2) preparing a titanium dioxide photocatalytic film on the surface of the titanium coating. The titanium coating material is prepared through any one or the combination of chemical plating, electroplating, magnetron sputtering or plasma smelting coating. The method has the main advantages that: (1) the photocatalytic property is high. to the specific, as the whole surface is completely covered by TiO2. anatase and rutile are evenly inlaid together to play a part in photocatalysis. and therefore, the photocatalytic performance of the material is greatly improved, which is generally 3-20 times of that of the traditional material; (2) the stability is good, to be specific, in the use process, the inactivation of the photocatalyst is not easy to occur, and the photocatalyst is easy to regenerate and can be used a plurality of times; (3) the bonding force is powerful, to be specific, the layers of films penetrate through each other and are pinned one another, so that the problem that the traditional material is easy to fall off is avoided; and (4) the corrosion resistance is good, to be specific, as a substrate foam material is completely covered by the titanium metal and the corrosion resistance of titanium is excellent, the corrosion resistance of the material is improved by 3-10 times.

The present invention relates to an activation method for the generation of apatite on the surface of a titanium coating. The chemical processing method of the surface of the titanium coating includes the following four steps: alkali solution soaking, deionized water soaking, heat processing and pre-calcification in supersaturated calcium phosphate solution. The vacuum plasma spraying method is adopted to deposit titanium powder on a washed and sandblasted metallic substrate in order to form the titanium coating, and the metallic substrate adopts titanium alloy, CoCrMo alloy or stainless steel. A simulated body fluid soaking experiment shows that the coating modified by the method has excellent bioactivity, and in the simulated body fluid, an apatite layer can be rapidly induced to form on the surface of the titanium coating in one day.