112 results about "Metallic alloy" patented technology

The invention discloses a self-cleaning device for a ballast water pipeline of a tropical scientific investigation ship, the self-cleaning device comprises the ballast water pipeline, a double-rod fixing device, rotation dampers, a screw rod and a rotary scraper, the screw rod is fixed and welded on the inner wall of the ballast water pipeline by the double-rod fixing device, the rotary scraper is fixed on the screw rod through thread engagement and limited by the rotation dampers on the two sides, and the rotary scraper is fixed on the ballast water pipeline. A silicon nitride ceramic shaft seal is arranged at the penetrating connector of the screw and the double-rod fixing device, the rotary scraper body is made of a metal alloy matrix, and the surface of the rotary scraper body is coated with an Al2O3-TiO2 coating. The invention further discloses a working principle of the self-cleaning device for the ballast water pipeline of the tropical scientific investigation ship. Aiming at the special requirements of the operation area of the tropical scientific investigation ship, the rotary scraper is driven by the kinetic energy of ballast water flow, a quickly growing biological membrane is efficiently removed through the centrifugal stripping and shearing stripping effects of the fluid, pollution of chemical cleaning to sensitive ecology such as coral reefs is avoided, and the pipeline blockage risk and the maintenance cost are reduced.

A method for fabricating a metal-infiltrated ceramic matrix composite, comprises: providing a ceramic fiber preform comprising a fiber tow; depositing an interface coating material around the fiber tow to form an interface coating therearound, and form an interfaced coated ceramic preform containing the interface coated fiber tows; depositing a silicon carbide layer around the interface coated fiber tow; depositing a reaction-barrier coating around the interface coated, silicon carbide coated fiber tow of the interface coated, silicon carbide coated ceramic preform; infiltrating the interface coated, silicon carbide coated ceramic preform with a slurry comprising a carbon source; drying the slurry infiltrated interface coated, silicon carbide coated ceramic preform; and infiltrating the dried slurry infiltrated interface coated, silicon carbide coated ceramic preform with a molten ternary metal alloy, a molten ternary metalloid alloy, a molten ternary metal alloy comprising boron as a constituent, a molten ternary metalloid alloy comprising boron as a constituent, a ternary metal melt, a ternary metalloid melt, a ternary metal melt comprising boron as a constituent, or a ternary metalloid melt comprising boron as a constituent, combinations comprising at least one of the foregoing; to form a melt-infiltrated ceramic matrix composite.

The present disclosure relates to a fabrication and evaluation process for testing new metallic alloy chemistries and compositions for laser powder bed fusion (L-PBF). The new methodology is efficient and effective for new compositions with a minimal investment of generating large quantities of powder feedstock for required in conventional AM processing. The method allows for subsurface melting of the new alloy composition by varying the depth of penetration by a control of the input power level, power deposition rate, and rastering scan strategy. Post-mortem analysis of the subsurface microstructure permits an analysis of the durability and suitability of the new metallic alloy for this manufacturing mode. The method utilizes available infrastructure, technology, and characterization techniques.

A fishing attractant for use in combination with a sonar tracking device includes an outer surface that is at least partially coated with a composition that enhances tracking of the fishing attractant by the sonar tracking device. The composition includes at least one metal or metal alloy that reflects a sonar beam transmitted by the sonar tracking device.

The utility model belongs to the technical field of heat dissipation devices for casting parts made of metal alloy materials, and particularly discloses a heat dissipation device for manufacturing casting parts made of non-ferrous metal alloy materials, which comprises a processing tank, one side of the processing tank is fixedly connected with a second connecting pipe, and one side of the second connecting pipe is provided with a first connecting pipe. A cooling box is fixedly mounted at the bottom of the treatment tank; the filtering and cooling mechanism used for filtering and cooling hot air is arranged on one side of the second connecting pipe, and the filtering and cooling mechanism comprises a cooling pipe fixedly installed between the first connecting pipe and the second connecting pipe; heat generated by the non-ferrous metal alloy material casting manufacturing equipment can enter the first connecting pipe, the heat flows around during cooling through the cooling assembly, the time for the heat to pass through the cooling assembly is prolonged, the cooling effect of the cooling assembly during use is improved, and when the heat enters through the filter assembly, the cooling effect of the cooling assembly is improved. And carried dust can be filtered.

The invention relates to an overmolding method for producing a component (1) having a decoration (2), also referred to as an overmolded part, said decoration (2) being made of an at least partially amorphous metal alloy (8), said method comprising the following steps: providing a blank (3) having at least one through-hole (4) which opens into the overmolded part (2) to be produced, said blank (3) being made of a first material having a low thermal diffusion coefficient or being at least partially plated with a layer made of said first material; providing an injection mould (6); positioning the blank (3) inside the injection mould (6); the liquid metal alloy (8) is injected through the through hole (4), and the through hole is communicated into the cavity of the injection mold (6) and / or the cavity of the blank (3); the blank (3) with the overmolded part (2) is demolded in order to obtain the component (1).

A method of preparing a mixture of a metal or metal alloy and (NbxTi1-x)C (where 0<x≤1) in which (NbxTi1-x)C in particulate form (either with or without metal powder) is formed into a preform and then if necessary added to the metal. The resulting (NbxTi1-x)C / metal mixture can then be heated to a temperature below the melting point of the (NbxTi1-x)C and optionally dispersed in liquid metal and / or casted and cooled to produce a solid product with improved physical properties.

The invention relates to a bimetallic alloy nano-enzyme for treating multi-drug-resistant bacterial infection as well as a preparation method and application thereof, and belongs to the field of biomedical nano-materials. The problems that in the prior art, the catalytic activity of metal and metal-based nano enzyme is limited, the bactericidal effect is poor due to poor targeting performance, the bactericidal effect in vivo (especially deep drug-resistant bacteria) is poor, and biocompatibility is poor are solved. The invention relates to a bimetallic alloy nano-enzyme for treating multidrug-resistant bacterial infection, which is mainly composed of two metal elements of Pt and Ru, and the atomic ratio of Pt / Ru is 90 / 10-70 / 30. The bimetallic alloy nano-enzyme disclosed by the invention has efficient biological catalytic activity, has a very good treatment effect on deep drug-resistant bacterial infection under ultrasonic activation, shows remarkable antibacterial, anti-biofilm and anti-inflammatory multiple effects, and is good in biocompatibility.

A light-weight composite bushing suitable for automobile sliding bearing and a preparation method thereof, the composite bushing is made of a composite material, the composite material comprises a base material layer, a self-lubricating layer, and a metal mesh, the base material layer comprises a metal layer and a plated film layer, raw materials of the plated film layer are plated on the metal layer by hot dipping, raw materials of the self-lubricating layer comprise PTFE and metal alloy particles, the melting point of the metal alloy particles is less than the sintering temperature of the PTFE, the metal mesh comprises a plurality of array type arranged mesh holes, the mesh holes are composed of a first mesh hole part and a second mesh hole part, the cross-sectional shape of the first and second mesh hole parts is conical. The light-weight composite bushing provided by the present application adds trace elements Si, Ti, Ca and B in addition to Al, Mg and Zn in the raw materials of the plating solution, so that the plated film layer basically does not produce cracks during flanging, and the service life of the entire bushing is improved.

The invention discloses a heat reflection thermal insulation fabric and a preparation method thereof. A heat reflection heat preservation fabric comprises a fabric layer provided with a first surface; the at least one metal alloy layer is stacked on the first surface of the fabric layer; wherein the chemical formula of the metal alloy layer is shown as CuaAlbNicAgdTieMf, M is one or more of Au, Fe, Co, Cr, Mg, Zn, Sn and In, subscripts a, b, c, d, e and f are atomic percentage contents of corresponding elements respectively, and a is larger than or equal to 0 and smaller than or equal to 0.43, b is larger than or equal to 0 and smaller than or equal to 0.81, c is larger than or equal to 0 and smaller than or equal to 0.35, d is larger than or equal to 0 and smaller than or equal to 0.66, e is larger than or equal to 0 and smaller than or equal to 0.54, f is larger than or equal to 0 and smaller than or equal to 0.84, and a + b + c + d + e + f = 1. According to the heat reflection heat preservation fabric, the metal alloy layer is arranged on the first surface of the fabric layer in the stacked mode, so that the fabric has good abrasion resistance and washing resistance in the using process, the service life of the fabric is prolonged, and the heat preservation performance of the fabric is effectively improved.

The invention discloses a carbon-coated heterojunction difunctional electrocatalyst which is formed by a heterostructure formed by a metal organic framework derived carbon-coated nickel-based bimetallic alloy and an oxide, the metal organic framework derived carbon-coated nickel-based bimetallic alloy is of a nano structure, and the oxide is also of a nano structure. The two are stacked to form a 3D nanosheet composite structure and are loaded on the carrier; wherein the carbon-coated nickel-based bimetallic alloy is used as an active phase. According to the preparation method, an electrocatalyst with a heterostructure is grown on a soaking nickel carrier by adopting a hydrothermal method, the effective area of reaction is greatly increased due to the morphology of a nanosheet structure, and meanwhile, a graphite phase carbon layer derived from a metal organic framework is generated on the outer layer of the nickel-based alloy, so that the inherent defects of the alloy are overcome, and the conductivity of the material is improved.

The invention discloses a method for recovering metal by reducing deep-sea polymetallic oxidized ore through high-temperature hydrogen plasma, which comprises the following steps: dehydrating and drying the deep-sea polymetallic oxidized ore collected at the seabed, then adjusting the binary alkalinity of the deep-sea polymetallic oxidized ore to 0.15-0.20 (the binary alkalinity represents the mass ratio of CaO to SiO2), and smelting by using a hydrogen plasma electric arc furnace, and after smelting is finished, a melt is poured out, smelting slag and smelting alloy are separated, and nickel-copper-cobalt-iron smelting alloy and manganese-rich slag are collected. And finally, the high-value alloy and the manganese-rich slag are obtained in one step through separation of the slag and the metal alloy.

The utility model relates to a suspension paint spraying technical field especially relates to a suspension device for nonferrous alloy paint spraying, its technical scheme: including conveying track, suspension piece and paint spraying box upper end transmission part, the suspension piece is composed of central rotating lever, rotating sleeve, bottom plate and hook, the rotating sleeve rotationally connects in the outside of central rotating lever, the bottom plate upper end central position is fixedly connected with the bottom of central rotating lever, the equidistant rotating connection has the rotating seat on the bottom plate, the hook upper end is fixed in the rotating seat bottom, the conveying chain is installed in the conveying track, the equidistant fixed connection rod has in the conveying chain, the stable plate is installed between the bottom of connection rod and the upper end of central rotating lever, the paint spraying box upper end transmission part includes fixed side plate. The utility model can utilize the transmission between the gear when the hook passes through from the paint spraying box, makes the hook carry out circumferential rotation and rotation, and need not additional output power, can better realize the purpose that the surface is even sprayed.

A fluid composition including a mixed metal oxide viscosifier, a clay viscosifier, and solid eutectic metal alloy particles. A method 100 including pumping a drilling fluid downhole in a wellbore. The drilling fluid includes water, a mixed metal oxide viscosifier, a clay viscosifier, and solid eutectic metal alloy particles. The method 100 further including allowing the drilling fluid to reach a target zone with elevated permeability and forming a filter cake containing solid eutectic metal alloy particles in the target zone. The method 100 including heating the filter cake to a temperature greater than the melting temperature of the eutectic metal alloy particles, allowing the particles to melt and become liquid eutectic metal alloy particles. The method 100 including discontinuing heating and allowing the filter cake to cool to a temperature lower than the melting temperature of the solid eutectic metal alloy particles to produce a strengthened filter cake.

The invention discloses a plating material for surface metallization of a ceramic material, the ceramic material and a preparation method of the ceramic material. The plating material for metallizing the surface of the ceramic material comprises a metal alloy and a mixed salt in a weight ratio of 1: (1-10), wherein the metal alloy comprises, by weight, 10%-99% of active metal elements, 0%-85% of iron elements and 1%-5% of other elements, and the active metal elements comprise one or more of transition metal of titanium, molybdenum, vanadium, niobium, tungsten or rare earth neodymium; the mixed salt comprises two or three of alkali metal salt, alkaline earth metal salt and villiaumite; the plating material for metallization of the surface of the ceramic material is used for forming a metal layer on the surface of ceramic by utilizing ionization deposition of high-temperature molten salt on metal alloy. The plating material for ceramic material surface metallization can be used for plating micron-scale transition metal layers such as titanium, molybdenum, vanadium, niobium, tungsten, rare earth neodymium and the like on the ceramic surface, the aim of low-cost metallization of the ceramic surface is achieved, and the wettability and interface bonding strength of ceramic metal are improved.

A spinner for use in manufacturing glass fibers includes a body having an upper wall with an opening therethrough, a lower wall, and a side wall extending between the upper wall and the lower wall. The side wall comprises a plurality of orifices, and the body comprises a metal alloy material and is formed using a localized welding method, such as a directed energy deposition (DED) method.

An optical heater 100 converts optical power into thermal energy and includes a housing 130, an associated optical cable 110, 112 and a fastener 133 to attach the optical heater to a chamber 310. In use, the chamber receives a substance to be heated. The optical cable is designed to receive light from an optical source, and the optical source may be a passive source such as a sun light collector, or an active source such as a lamp. The optical heater and associated chamber may be part of a heating system with a boiler 300 in which cold water is received at an inlet 320, heated by the optical heater and hot water is delivered via an outlet 330. The optical heater may include a heating target 120 and the target may function as a dispersive lens that allows the collected optical energy to be dispersed to the material to be heated, or the target may heat up and dissipate the heat by conduction and convection. The housing may be made of at least two parts, and a first part 131 may be made of a metal or a metal alloy material, such as brass, and a second portion 132 may be made of a transparent material such as glass or plastics.

The utility model belongs to the technical field of nonferrous metal processing, and particularly relates to a dust treatment device for nonferrous metal alloy material production and manufacturing, which comprises a treatment box, a dust suction pump fixedly mounted at one end of the treatment box, a first dust collection box arranged in the treatment box, and a second dust collection box arranged in the treatment box, a first sealing plate is arranged at one end of the first dust collection box, a dustproof net frame is arranged in the treatment box, and a dust falling spraying mechanism is arranged on the treatment box. The partition plate, the first settling chamber, the second settling chamber, the first collecting box and the second collecting box are arranged in the treatment box and used in cooperation, introduced dust can be conveniently settled, collected and treated, the dust removal effect is conveniently improved, the water tank, the water pump, the water guide pipe, the splitter plate and the spray heads are arranged and used in cooperation, and the dust removal effect is improved. And dust in the second settling chamber can be conveniently sprayed, settled and dedusted, so that the dust removal effect is further improved, and better work and use are facilitated.

The invention discloses an aluminum-based multi-layer composite material and a preparation method thereof, and relates to an aluminum-based composite material which is characterized in that molten aluminum liquid and a metal simple substance plate or a metal alloy plate are subjected to single-side or double-side solid-liquid casting rolling compounding to form an aluminum-based composite plate; and then the molten aluminum liquid serves as an intermediate, the aluminum-based composite board and a metal simple substance board or a metal alloy board or the aluminum-based composite board are subjected to double-face solid-liquid cast-rolling compounding, and the aluminum-based multi-layer composite board is obtained after one-time or multiple-time repeating. According to the technical scheme, the molten aluminum liquid serves as an intermediate medium, and multi-layer metallurgical bonding of dissimilar metal materials is achieved through the solid-liquid cast rolling technology. The high diffusivity and wettability of molten aluminum serve as the core, under the conditions that the melting point of a base material is higher than that of aluminum, and the contact angle is smaller than 90 degrees, metal elementary substances or alloy or composite boards are stacked layer by layer through a continuous cast-rolling technology, and an alternately-distributed metal-aluminum-metal multi-layer structure is formed.

The utility model relates to the technical field of production and manufacturing of non-ferrous metal alloy materials, in particular to a dust treatment device for production and manufacturing of non-ferrous metal alloy materials, which comprises a device body, the device body is provided with a connecting mechanism, and the connecting mechanism comprises a connecting assembly arranged on the outer wall of the device body. A scraping assembly is arranged on the upper section of the device body, and a screening assembly is arranged on the lower section of the device body. The screening assembly of the device is unique in design, the screening plate is driven by the connecting sliding sleeve to reciprocate up and down, dust in production of non-ferrous metal alloy materials can be efficiently screened through cooperation with the scraping plate at the bottom, the screening precision and efficiency are improved, the scraping plate can scrape off materials left on the screening plate in time when the screening plate moves, and the screening efficiency is improved. And meanwhile, the inner wall of the device can be ensured to be clean, the service life of the device is prolonged, and the maintenance cost is reduced.

The system of the invention comprises a first flexible sheet (1) which is made of at least one of the group consisting of an electromagnetic metal, a ferromagnetic metal alloy, or a first permanent magnetic component and a front face configured for writing or for the fixing of printed texts or images on physical medium and coated with a layer of coating composition. The first flexible sheet (1) is connected to a second flexible sheet (2), which is made of a material selected from at least one of the group consisting of a cork, an elastomer, a plastic and composites thereof.The system can be rolled and unrolled without ruptures or loss of contact quality between the first flexible sheet (1) and the second flexible sheet (2) and provides comfortable writing for the user due to the buffering of the second flexible sheet (2).

The strain gauge includes: a flexible substrate; a functional layer formed on one surface of the substrate and made of a metal, an alloy, or a metal compound; and a resistor formed on one surface of the functional layer and made of a material containing at least one of chromium and nickel.

A method for case-hardening a group IV metal or a group IV metal alloy, and a component hardened by this method are provided. [Solution] The method comprises the steps of: preparing a workpiece of a group IV metal or a group IV metal alloy, wherein the workpiece is in its final shape; nitriding the workpiece in a nitriding atmosphere containing NH as the nitride species at a first temperature of 450°C to 750°C for a nitriding time of at least 16 hours to form a hydrogen-containing diffusion zone; and a second temperature up to 750°C and up to 10 -4 The method includes removing hydrogen from a hydrogen-containing diffusion zone over a hydrogen removal time of at least 4 hours at a partial pressure of H2 in mbar to form a hydrogen-deficient diffusion zone. This method and its components are useful for implants, particularly dental implants.

The invention discloses an alloy and ceramic composite coating and a preparation method thereof. The preparation method comprises the following steps: adding raw materials including chromium sulfate, sodium tungstate, sodium molybdate, nickel sulfate, sodium sulfate, sodium citrate, boric acid and ceramic powder into a solvent to prepare an electroplating solution; after the surface of a base material is subjected to mechanical polishing, alkali washing oil removal, acid pickling activation and nickel pre-plating, the base material serves as a cathode and an anode electrode to be put into electroplating liquid together, a direct-current power source is adopted for electroplating, the electroplating voltage is selected to range from 10 V to 12 V, the current density is selected to range from 12 A / dm to 20 A / dm, electroplating deposition is conducted for 30 min to 70 min, and the alloy and ceramic composite coating is obtained. According to the preparation method disclosed by the invention, various metal alloys are electroplated on the surface of the diamond cutter by adjusting the electroplating potentials according to different electroplating potentials of different metals, so that the hardness, wear resistance and high-temperature stability of the diamond cutter are remarkably enhanced.

The application discloses a method for recovering metals from deep-sea polymetallic nodule by high-temperature hydrogen plasma reduction, and comprises the following steps: dehydrating and drying the deep-sea polymetallic nodule collected from the seabed, and then adjusting the binary alkalinity of the deep-sea polymetallic nodule to 0.15-0.20, wherein the binary alkalinity is expressed as the mass ratio of CaO to SiO2; smelting the deep-sea polymetallic nodule by using a hydrogen plasma arc furnace; pouring out the melt after the smelting is completed; separating the smelting slag and the smelting alloy; and collecting the nickel-copper-cobalt-iron smelting alloy and the manganese-rich slag. Finally, the high-value alloy and the manganese-rich slag are obtained in one step through the separation of the slag and the metal alloy.

This invention relates to the field of valuable metal recovery technology, and particularly to a method for recovering valuable metals from cyanide-extracted gold-bearing carbon sludge. The steps are as follows: S1, mix carbon sludge, lime, quartz, and borax evenly, and put them into a smelting device. Place an extractant on top of the mixture and perform high-temperature smelting. After cooling, separate the slag and copper-iron alloy; S2, add the copper-iron alloy obtained in S1 to the extractant and put it into the smelting device for high-temperature melting and extraction. After extraction, cool until the iron phase precipitates. Before the extractant solidifies, remove the iron-rich phase and allow the remaining molten metal to continue cooling; S3, perform vacuum distillation on the valuable metal alloy obtained in S2. After cooling, remove the volatile extractant and the gold-silver-copper alloy. The method for recovering valuable metals from cyanide-extracted gold-bearing carbon sludge provided by this invention can simply and efficiently recover valuable metals from carbon sludge and has good application value.

X-ray fluorescence spectrometry for characterizing the microstructure of a metallic alloy and detecting chemical segregations. One aspect of the invention relates to a method for determining at least one microstructural property of a metallic alloy on the surface of a part made from said metallic alloy.

An yttrium-containing structure comprises: (a) a substrate layer comprising a metal alloy, a ceramic material, a ceramic composite, or a combination thereof; (b) a bond-coat layer disposed on the substrate layer, or on an optional interlayer that is on the substrate layer, wherein the bond-coat layer comprises yttrium and a noble metal selected from the group consisting of platinum, iridium, rhenium, ruthenium, rhodium, osmium, and / or palladium; (c) a thermally grown oxide layer disposed on the bond-coat layer, wherein the thermally grown oxide layer comprises yttrium oxide; and (d) optionally, a top-coat layer disposed on the thermally grown oxide layer, wherein the top-coat layer comprises a metal oxide, a metal pyrochlore, or a metal silicate. Yttrium may be replaced with lutetium, in which the bond-coat layer comprises lutetium and a noble metal (e.g., Pt or Ir). A mixture of yttrium and lutetium may also be employed.

Method for producing an article (10, 10a) subject to wear comprising a main body (11) provided with a metal matrix (Ml) and, in correspondence with at least one zone (15) thereof to be reinforced, at least one reinforcing insert (12); the method provides a first step of producing at least one pre-insert (14), comprising reinforcing ceramic material (13) in a non-metal matrix (M2), and a second step of producing the at least one reinforcing insert (12) by replacing the non-metal matrix (M2) with the metal matrix (Ml) in the pre-insert (14), so that the at least one reinforcing insert (12) is embedded in the metal matrix (Ml); this metal matrix (Ml) is made with a metal alloy at least partly comprising steel containing carbon by mass percentage lower than 0.5% and chromium by mass percentage lower than 3%.

The invention discloses a light-absorbing black film as well as a preparation method and application thereof, relates to the technical field of optical films, and solves the problem that the light-absorbing performance and the material strength of an existing light-absorbing material are difficult to consider at the same time. Comprising a substrate, a metal layer, a first absorption layer and a second absorption layer, the substrate is made of metal, alloy or optical glass; the metal layer is made of a Ti and Cr alloy material; the first absorption layer is an alternate laminated layer of a metal material and an oxide material; the metal material is a Ti and Cr alloy material; the second absorption layer comprises a metal layer with a superlattice structure and an oxide material; the superlattice structure comprises nanoscale Ti / Cr metal laminated layers which are periodically alternated, and each group of laminated layers comprises a Ti layer with a nanometer thickness and a Cr layer with a nanometer thickness. According to the invention, the ultra-wide spectrum high absorption characteristic is maintained, the excellent mechanical property and process compatibility are realized, and an ideal light absorption solution is provided for a high-performance optical system.