108 results about "Particulate metal" patented technology

The invention relates to a workbench device and a machine tool. The workbench device comprises a base; the supporting part is arranged on the base, the supporting part is provided with a supporting surface, and the supporting surface is used for being in contact with a supported piece so as to support the supported piece; and at least one of the base and the supporting part is provided with the purging structure, and the purging structure is used for being communicated with an external air source so as to purge impurities on the supporting surface through the purging structure. By means of the technical scheme, the problems that in the related technology, dust particles, metal chippings and other impurities are gathered on the supporting face of the supporting part, abrasion of the supporting face is aggravated, the stability of positioning and supporting is reduced, and the machining quality of a workpiece is affected can be solved.

The invention provides a metal particle doped self-supporting carbon-based material as well as a preparation method and application thereof. The metal particles comprise metal elementary substance particles, and in the self-supporting carbon-based material doped with the metal particles, the loading capacity of the metal elementary substance particles is 15-55 wt%; the preparation method comprises the following steps: firstly, mixing a polymer, metal salt and a solvent, and preparing a carbon-based material precursor through electrostatic spinning; then sequentially carrying out pre-oxidation and calcination on the carbon-based material precursor; wherein the types of metal salts and the conditions of pre-oxidation and calcination are defined. According to the preparation method, by limiting the gas components in the calcination process and the temperature and time ranges in the pre-oxidation and calcination processes, the loading capacity of the metal elementary substance particles is remarkably improved, the precursor is fully carbonized to form the carbon fibers, and the prepared self-supporting carbon-based material is good in discharge capacity and cycle performance.

The wear-resistant iron-based welding wire comprises an outer skin and a powder core, the outer skin is made of stainless steel, and the powder core comprises metal nitride, cemented carbide particles, metal powder, a deoxidizing agent and other powder. The metal nitride is adopted in the powder core of the welding wire to provide nitrogen, the phase of a welding layer is stabilized to be austenite, nickel is replaced, and the welding layer of the welding wire has the non-magnetic characteristic and meanwhile has high abrasion resistance during welding.

The invention belongs to the technical field of fuel cells, and particularly relates to a high-durability alloy catalyst and a preparation method and application thereof. The prepared high-durability alloy catalyst comprises a metal monatomic carrier Q-N-C and PtM alloy nanoparticles loaded on the metal monatomic carrier Q-N-C, the metal monatomic carrier Q-N-C is composed of a nitrogen-doped carbon carrier N-C and a metal monatomic Q loaded on the nitrogen-doped carbon carrier N-C, and the PtM alloy nanoparticles are composed of Pt salt and M metal salt; the related preparation method can effectively adjust the interaction between the carrier and the alloy, has high durability, and can solve the problem that the second phase metal in the alloy catalyst is easy to dissolve out by using the monatomic catalyst as the carrier of the catalyst and using the carrier as a receiver for receiving the dissolution of the second phase of the alloy catalyst. Meanwhile, excellent electrochemical performance and relatively high stability are realized.

The invention relates to the field of preparation and photocatalysis application of composite catalysts, in particular to a composite catalyst with a carbon nitride wire mesh wound with metal oxide and a preparation method and application of the composite catalyst. Modifying the metal oxide nanoparticles; preparation of a composite catalyst: respectively dispersing melamine, cyanuric acid and the modified metal oxide nanoparticles in a specified mass ratio in deionized water, stirring for specified time A, adding a cyanuric acid aqueous dispersion solution into the melamine aqueous dispersion solution to obtain a mixed solution, stirring for specified time B at normal temperature, then heating and stirring for specified time C, filtering, washing and drying to obtain the composite catalyst. And raising the temperature of the metal oxide dispersion liquid to the same temperature, adding the mixed liquid, stirring for a specified time D, then carrying out a hydrothermal reaction, after the reaction is finished, standing and cooling, cleaning and drying a precipitate obtained in a container, raising the temperature of the dried precipitate in nitrogen, calcining, and cooling to obtain the composite photocatalyst with the carbon nitride wire mesh wound with the metal oxide.

The invention discloses a preparation method of a metal brazed ceramic wear-resistant part, and mainly solves the technical problems that the precision of a product is poor due to the fact that an existing ceramic wear-resistant part is easy to deform in the manufacturing process, and the qualified rate of a finished product is low due to the fact that a green body of a ceramic accessory with a large size or a complex shape is easy to deform or the interior of the ceramic accessory cracks in the sintering process. The preparation method comprises the steps that a forming cavity is manufactured according to the shape and size of the wear-resisting part; building a corresponding production system; a gold-porcelain mixture is prepared, and the gold-porcelain mixture comprises gold-porcelain particles, metal particles and melt injection metal according to the volume ratio of 4.5-7: 0-2: 3-4.5; and manufacturing the wear-resistant part and performing post-treatment to obtain the metal brazed ceramic wear-resistant part. According to the wear-resistant part prepared by the method, the wear resistance of the wear-resistant part can be remarkably improved, and meanwhile, the production efficiency is also optimized.

The invention belongs to the technical field of sewage treatment, and particularly relates to polyaluminum chloride flocculation and clarification equipment for sewage treatment, the polyaluminum chloride flocculation and clarification equipment for sewage treatment comprises a rack and a self-flowing wheel assembly, the rack is provided with a slow flow cavity, a first separation cavity, a second separation cavity, a crushing cavity, a dissolved air cavity and an air flotation cavity, a first water taking pipe and a first flocculation pipe are arranged above the first separation cavity, the second separation cavity is connected with the first water taking pipe, a second water taking pipe and a second flocculation pipe are arranged on the second separation cavity, the crushing cavity is connected with the first flocculation pipe, and a self-flowing wheel assembly and a three-flocculation pipe are arranged on the crushing cavity. The air dissolving cavity is connected with a second water taking pipe, the air floatation cavity is connected with a second flocculation pipe and a fourth flocculation pipe, and through the synergistic effect of ultrasonic breaking and microbubbles, impurities are stripped from floc, meanwhile, microbubble air dissolving water is sprayed to the surface of the depolymerized floc, inorganic particles, metal precipitates and other impurities are efficiently dissociated, and meanwhile the floc stably floats upwards.

The invention discloses a composite precursor and a preparation method thereof, a positive electrode material and a battery. Wherein the composite precursor is formed by compounding nanocrystallized metal oxide particles, metal hydroxides and additives, and has high sintering activity. In the sintering process, a full-area liquid phase environment formed by melting the additive can promote lithium ion diffusion, so that the sintering time is remarkably shortened; meanwhile, as the metal hydroxide has a layered structure similar to that of the target positive electrode material, the metal hydroxide can be used as a crystal nucleus to induce formation of the layered single-crystal positive electrode material, and the obtained single-crystal positive electrode material shows excellent electrochemical performance. In addition, the composite precursor is high in tap density, the calcining bowl loading amount is greatly increased, and the production cost is remarkably reduced.

The utility model discloses a plastic particle metal impurity filtering device which comprises a base and a filtering barrel fixedly arranged at the top of the base, a feeding hopper is installed at the top of the filtering barrel, a discharging pipe is installed at the bottom of the filtering barrel, a rotating shaft is rotationally arranged in the filtering barrel, and a discharging pipe is installed at the bottom of the rotating shaft. The outer wall of the rotating shaft is fixedly sleeved with a spiral separation auger, and the two ends of the rotating shaft both penetrate through and extend to the outside of the filtering barrel. Plastic particles are turned and stirred to do irregular movement under the action of a feeding hopper, a spiral separation auger, a push plate and an air pump, so that the plastic particles are separated from metal impurities, the metal impurities separated from the plastic particles are adsorbed away by a metal adsorption plate, and finally a drawer is pulled out. And the electric sliding rail drives the electric sliding block to drive the connecting rod, so that the metal impurities adsorbed on the metal adsorption plate are cleaned by the scraping plate and fall into the collecting box for subsequent treatment, and the filtered metal impurities are conveniently cleaned and collected.

The invention discloses a lithium-containing composite precursor and a preparation method thereof, a positive electrode material and a battery. The lithium-containing composite precursor is formed by compounding nanocrystallized metal oxide particles, metal hydroxide particles, a lithium salt and an additive, the sintering activity is high, the nanocrystallized metal oxide particles are in close contact with the lithium salt during sintering, the diffusion distance of lithium is short, a liquid phase environment can be provided after the additive is molten, diffusion of lithium is promoted, the sintering time is short, and the lithium-containing composite precursor is prepared. The metal hydroxide has a layered structure similar to that of the target positive electrode material and can be used as a crystal nucleus to promote formation of the layered-structure single crystal positive electrode material, and the sintered single crystal lithium ion positive electrode material has excellent electrical performance; meanwhile, the composite precursor is large in bowl loading amount and low in production cost.

The present invention provides: a composite metal magnetic body and an inductor, in each of which the filling rate of metal magnetic particles is improved by making the Vickers hardness thereof smaller than ever before; and a method for manufacturing the composite metal magnetic body and a method for manufacturing the inductor. A composite metal magnetic body CP according to the present disclosure is obtained by combining a plurality of metal magnetic powders MP each having a metal magnetic particle DP that contains Fe and a passivation element that is more easily oxidized than Cr and an oxide film OL that covers the metal magnetic particle DP via the oxide film OL, wherein the Vickers hardness of the metal magnetic particle DP is 67 HV to 191 HV inclusive.

The invention belongs to the technical field of water purification filtering materials, and particularly relates to a degerming carbon rod as well as a preparation method and application thereof. The degerming carbon rod comprises first active carbon particles, second active carbon particles, a metal oxide, a polyethylene binder and a bacteriostatic agent. The ratio of the D50 particle size of the first activated carbon particles to the D50 particle size of the second activated carbon particles is (1.2-3.0): 1; the ratio of the D50 particle size of the second active carbon particles to the D50 particle size of the metal oxide is (1.2-5.0): 1; the D50 particle size of the metal oxide is 20-50 [mu] m; and the content of the metal oxide in the degerming carbon rod is 4-8wt%. The key point of the invention is to regulate and control the D50 particle size proportion and mass ratio of the first activated carbon particles, the second activated carbon particles and the metal oxide, so that the obtained carbon rod not only has low pressure drop and high flow rate, but also has high filtration precision, high sterilization rate and high disinfection byproduct removal rate.

The utility model relates to the technical field of aluminum alloy production, and discloses an iron sorting device for aluminum alloy production, which comprises a separation box, a vibration screening module and a powder magnetic separation module. A hopper-shaped material guide opening is formed in the top of the separation box, a first-stage pore plate is obliquely installed in the separation box, a vibration mechanism drives a cam to rotate through a stepping motor, horizontal reciprocating motion is converted into high-frequency vertical vibration of the first-stage pore plate through linkage of a sliding rod, a spherical hinge and a spring, and screening and grading of large-particle metal, small-particle metal and powder are achieved. Large particles enter the drawer through the coarse material outlet, and powder falls into the fine material drawer. The powder sorting module adopts multiple sets of double-coil electromagnets inclining by 30-45 degrees, pulse current is introduced to form a gradient magnetic field to adsorb iron powder, meanwhile, an air feeder and an induced draft fan cooperatively generate horizontal airflow, and aluminum powder is driven to enter a filter drum to be separated. The device solves the problems that traditional equipment is mixed in size and low in powder separation efficiency through vibration screening, magnetic separation and air separation.

To provide a contact material having sufficient abrasion resistance while suppressing a production cost, and suppressing occurrence of a coarse crack.SOLUTION: A contact material comprises: a conductive substrate; a silver layer covering at least a part of the surface of the conductive substrate; and a particle-containing metal layer covering at least a part of the surface of the silver layer. The silver layer has the thickness of 1.0 μm or greater. The particle-containing metal layer includes a parent phase made of a metallic material and particles dispersed in the parent phase.SELECTED DRAWING: Figure 1

The present invention provides a borate and metal boride composite coated positive electrode material and a preparation method thereof, belonging to the technical field of sodium ion batteries. The present invention directly mixes positive electrode particles, metal boride and non-metallic boron source to obtain a coated mixture and then calcines it in stages. The first stage of calcination: boric acid or boron oxide has a low melting point and has good fluidity after melting at low temperature, so that the metal boride can be evenly distributed on the surface of the positive electrode particles; the second stage of calcination: high temperature promotes the reaction wettability of the metal boride and the surface of the layered oxide positive electrode material, ensuring the close bonding and complete coverage of the coating layer, and slowing down the side reaction between the positive electrode material and the electrolyte. The preparation process of the present invention is simple, does not use dangerous boron hydride compounds, is simple and safe to operate, is low in cost, and is easy to mass produce. The sodium ion battery obtained by using the positive electrode material prepared by the present invention has a high specific capacity and excellent cycle performance.

Provided is a laminated coil component having excellent withstand voltage characteristics and small variation in inductance. A magnetic body layer (4a) of a magnetic element body located between coil conductor layers (5) adjacent in the stacking direction of the coil conductor layers (5) contains metal magnetic particles (4alpha), the average particle diameter of the metal magnetic particles (4alpha) is 0.3-2.5 [mu] m, and the volume fraction of the metal magnetic particles (4alpha) is 60-82%. The average circularity of the metal magnetic particles (4 [alpha] 1) located in a predetermined region including the boundary between the coil conductor layer and the magnetic material layer is 0.80 or more.

The utility model is applicable to the technical field of metal manufacturing, and provides a dust collector for metal manufacturing, including a dust box, the dust box is used to remove dust generated in the metal manufacturing process; a mounting plate fixedly installed in the dust box; a plurality of filter bags mounted on the mounting plate, the filter bags are used to filter dust generated in the metal manufacturing process; a dust removal mechanism mounted on the dust box, the dust removal mechanism is used to process dust generated in the metal manufacturing process; an air intake pipe fixedly installed on the dust box, the air intake pipe is provided with a processing box. The dust collector for metal manufacturing provided by this scheme can well remove dust generated in the metal manufacturing process, and can filter large particles of metal in the dust, thereby reducing the processing burden of subsequent filter bags, improving the overall dust removal effect, and facilitating the subsequent processing of large particles of metal impurities.

A production method for a treatment solution for forming an insulating coating. The method includes mixing a solution A containing, on a PO43− basis, 0.20 mol / L or more and 10 mol / L or less of at least one of (i) phosphoric acid and (ii) a phosphate salt, and containing, on a metal basis, less than 0.50 mol / L of one or more particulate metal compounds, and a solution B containing, on a metal basis, 0.50 mol / L or more and 20.0 mol / L or less of the one or more particulate metal compounds, and containing, on a PO43− basis, less than 0.20 mol / L of at least one of (i) phosphoric acid and (ii) a phosphate salt, and stirring with a turbine stator-type high-speed stirrer such that a peripheral speed of a turbine reaches 10 m / s or more within 60 seconds after starting the mixing of the solution A and the solution B.

A heat transfer assembly utilizes a thermal interface material in a thermal dissipation pathway between a heat-generating component and a heat dissipater. The thermal interface material is disposed in a gap along the thermal dissipation pathway between a first surface and a second surface, wherein the gap has a mean gap width. The thermal interface material includes a matrix material and a particulated metal filler dispersed in the metal matrix, wherein the particulated metal filler has a melting point temperature of between 0° C. and 100° C., and a mean particle size that is equal to or greater than the mean gap width of the gap.

The present invention relates to an anti-corrosion composition for coating metal parts based on particulate metal in aqueous dispersion comprising a mixture of monomers comprising silane, at least one silicate and at least one titanate.

An object of the present invention is to provide a treatment liquid for manufacturing a semiconductor, a pattern forming method using the same, and a method of manufacturing an electronic device using the same. The treatment liquid for manufacturing a semiconductor comprising: one kind or two or more kinds of metal atoms selected from Cu, Fe, and Zn, wherein a total content of particulate metal including at least one kind of the metal atoms is 0.01 to 100 mass ppt with respect to a total mass of the treatment liquid for manufacturing a semiconductor.

The invention relates to a particle combustion monitoring technology, and aims to provide a system and a method for observing a single-particle metal combustion process in a limited combustion mode. According to the system, a vertical hollow alundum tube is arranged in a settling combustion furnace, and a vertical opening is formed in the side face of a furnace body and penetrates into an inner cavity of the alundum tube; the hollow quartz glass tube vertically penetrates into the alundum tube, and the two air inlet tubes are respectively connected to the hollow quartz glass tube and the alundum tube from the upper ends; a high-speed camera is arranged on the outer side of the quartz glass window at the opening of the furnace body and is focused on the center line of the quartz glass tube; an electric heating element and a thermal insulation material are arranged on the periphery of the alundum tube. According to the invention, the vertical quartz glass tube is utilized to enable the metal fuel particles to settle and fall in a limited area in the ignition combustion process, and the motion trail can be always kept at the focal length position of the high-speed camera, so that a high-definition single particle combustion whole-process image is obtained; the alundum tube is used, so that the temperature can be quickly increased, and the temperature can be stably adjusted on the premise that the temperature is kept uniform.

The invention belongs to the field of catalysts, and particularly relates to a monolithic carbon monoxide catalyst as well as a preparation method and application thereof. The monolithic carbon monoxide catalyst comprises a carrier and metal catalytic particles loaded on the surface of the carrier, and the loading capacity of the metal catalytic particles is 90kg / m < 3 >-150kg / m < 3 >. The integral carbon monoxide catalyst is relatively high in sulfur resistance and water resistance, so that the catalyst is high in catalytic stability in sintering flue gas purification. The loading capacity of the metal catalytic particles in the integral carbon monoxide catalyst is 90-150kg / m < 3 >, so that the integral carbon monoxide catalyst has high adsorption capacity on carbon monoxide and is not easy to agglomerate in the catalysis process. Aiming at complex sintering flue gas conditions, synergistic combination of vanadium group elements, chromium group elements, precious metal elements and the like is achieved by adding the auxiliaries, and meanwhile precious metal is promoted to be highly dispersed to the nanometer size, so that the precious metal nanometer catalyst is formed. The catalyst produced by the method not only has high loading strength and excellent catalytic efficiency, but also can keep excellent catalytic performance in a sintering flue gas environment in which various complex components such as water, sulfur, nitrate, ammonium and dust exist. The water-resistant sulfur-resistant rubber has the characteristics of excellent water resistance and sulfur resistance.

Provided are systems and methods for synthesis of metastable intermolecular composites, specifically energetic nanocomposites. The method may include dispersing a reductive fuel within a first aqueous solution and combining the reductive fuel solution with a second aqueous solution comprising a metal oxide and base to create a reductive fuel-metal oxide / base solution. The reductive fuel-metal oxide / base solution is mixed and solid material is filtered and collected from the mixture. The solid material is heated to obtain reductive fuel-metal oxide energetic nanocomposites. The ratio of base to metal oxide can be varied to achieve different structures of including core-shell or well-mixed nanocomposites. The reductive fuel may be aluminum nanoparticles, the metal oxide may be copper oxide, and the base may be ammonia. The method can be used for mass production of energetic nanocomposites and the structure of the energetic nanocomposites can be varied to tune the energetic performance of the energetic nanocomposites.

A magnetic layer of a magnetic element body is between coil conductor layers in close proximity to each other along a lamination direction of the coil conductor layers. The magnetic layer includes metal magnetic particles. The metal magnetic particles have an average particle size of 0.3 μm or more and 2.5 μm or less. The metal magnetic particles provide a fill factor of 60% or more and 82% or less. The metal magnetic particles in a predetermined region, which contains a boundary between one of the coil conductor layers and the magnetic layer, have an average circularity of 0.80 or more.

An object of the present invention is to provide a method of manufacturing a semiconductor device. The method of manufacturing a semiconductor device includes a lithography step, an etching step, and an ion implantation step, wherein at least one of a treatment liquid for manufacturing a semiconductor device used at the end of each step or before moving to the next step includes one kind or two or more kinds of metal atoms selected from Cu, Fe, and Zn, and wherein a total content of particulate metal comprising at least one kind of the metal atoms is 0.01 to 100 mass ppt with respect to a total mass of the treatment liquid for manufacturing a semiconductor.

The invention discloses metal particles, a metal grid touch film, a touch screen, a preparation method of the metal particles and a preparation method of the metal grid touch film. The metal particle is used for the metal grid touch film, and the metal particle comprises a metal simple substance and an outer coating layer coated on the outer wall of the metal simple substance, so that the environmental adaptability of the metal particle is improved. In this way, the environmental adaptability of the metal particles, the metal grid touch film and the touch screen can be improved.

The application discloses a preparation method of a wear-resistant and corrosion-resistant composite coating on a titanium alloy surface. The titanium alloy substrate is subjected to laser fusion treatment to prepare laser fusion TiN, and particle reinforced metal-based powder is used to prepare a particle reinforced metal cladding layer on the titanium alloy surface through laser cladding. The reinforcing particles are cBN, TiN, TiB2 or CrB2 particles, and the metal base is a high-entropy alloy of NiCr, CoCr, CoCrFeNiTi or AlCrFeNiTi. In the wear-resistant and corrosion-resistant composite coating prepared on the titanium alloy surface, the heat stress in the cladding layer during the subsequent laser cladding process is relieved, the forming quality of the cladding layer is excellent, and the composite coating has excellent wear resistance. The wear loss is 2.02*10 ‑8 g / N*m, which is only 6.2% of the substrate wear loss. The substrate surface is subjected to laser fusion treatment, and the negative influence of the composite coating on the tensile strength and thermal stress zone of the substrate is effectively relieved.

The present invention relates to a non-aqueous based composition for dispersing metal oxide particles. The non-aqueous based composition comprises a dispersion medium comprising an ester having a branched or unsaturated alkyl chain, preferably synthesized from 100% bio-based carbon, and a polyester dispersant comprising terminal carboxylic acid functional groups. The ester dispersion medium includes a liquid ester selected from the group consisting of Formulae (I), (II), (III) and combinations thereof. The present invention also relates to a non-aqueous based dispersion comprising the above non-aqueous based composition and metal oxide particles dispersed therein. The metal oxide particles may include zinc oxide, titanium oxide, or a combination thereof. Formulations using the compositions and dispersions and methods of making the same are also disclosed.

The utility model relates to a protection structure of a PPU mechanical arm, which comprises a fixing plate and a protective cover, the protective cover is installed in front of the fixing plate, a protective cavity is formed in the space between the protective cover and the fixing plate, a track plate, a cycloidal gear, a limiting plate, an inductor assembly and a guide rail of the PPU mechanical arm are located in the protective cavity, and main parts of the PPU mechanical arm are located in the protective cavity. The protective cover prevents external foreign matters such as dust particles, metal, sundries and the like from entering the protective cavity to damage parts and affect normal work of the PPU manipulator, and meanwhile prevents the parts from hurting people during movement.