71 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 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 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 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.

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.

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.

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 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.

This invention discloses a method for preparing metal-brazed ceramic wear-resistant parts, mainly addressing the technical problems of poor precision in existing ceramic wear-resistant parts due to easy deformation during manufacturing, and low yield rates due to deformation or internal cracking of the green body during sintering of large or complex-shaped ceramic parts. The preparation method includes: fabricating a molding cavity according to the shape and size of the wear-resistant part; constructing a corresponding production system; preparing a metal-ceramic mixture, wherein the mixture comprises metal-ceramic particles, metal particles, and molten metal in a volume ratio of 4.5–7:0–2:3–4.5; fabricating the wear-resistant part and post-processing, thereby obtaining the metal-brazed ceramic wear-resistant part. The wear-resistant part prepared using this method can significantly improve its wear resistance and also optimize production efficiency.

This invention provides an organic solvent-based coating composition for coating the surface of a metal substrate to increase the coefficient of friction of the surface. [Solution] The present disclosure relates to an organic solvent-based coating composition for coating the surface of a metal substrate to increase the coefficient of friction of the surface of the metal substrate, comprising: (i) at least one organic solvent; (ii) at least one particulate metal provided as metal flakes and having a diameter in the range of 1 μm to 100 μm; (iii) at least one metal carbide in a total concentration in the range of 0.1% to 5% by weight based on the total weight of the coating composition; and (iv) at least one binder.

Provided is a manufacturing method for an electronic material manufacturing liquid capable of efficiently manufacturing an electronic material manufacturing liquid that is high quality even in the formation of ultra-fine patterns (e.g., 10 nm nodes or less), a pattern forming method and a semiconductor device manufacturing method using the manufacturing method, an electronic material manufacturing liquid that is high quality even in the formation of ultra-fine patterns, and a container, and particularly provided is a quality inspection method in the formation of ultra-fine patterns. In the manufacturing method for an electronic material manufacturing liquid, a method for reducing the amount of particulate metals in the liquid is selected based on the concentration of particulate metals containing iron atoms, the concentration of particulate metals containing copper atoms, and the concentration of particulate metals containing zinc atoms measured by SPICP-MS in the liquid, and at least one of the concentration of particulate metals containing iron atoms, the concentration of particulate metals containing copper atoms, and the concentration of particulate metals containing zinc atoms is reduced using the selected method for reducing the amount.

A wear-resistant iron-based welding wire, comprising a sheath and a flux core, wherein the sheath is made of stainless steel, and the flux core comprises metal nitrides, hard carbide particles, metal powder and deoxidizer powder.

The invention belongs to the technical field of tire noise reduction materials, and particularly discloses a heat-resistant tire silencing sponge which comprises a composite sound absorption matrix, closed-cell metal foam particles, a reinforcing admixture, an interface modifier, an antioxidant and a heat stabilizer. The composite sound absorption matrix comprises porous polyurethane foam particles, metal modified phenolic polyol and a thermoplastic elastomer. Through 120 DEG C * 1000 h high-temperature aging and tire working condition composite verification, the tensile strength retention rate reaches 86.3-89.4%, the thermal deformation rate is only 0.9-1.5%, the retention rate after working conditions is greater than or equal to 83%, and no bonding failure exists. By means of component collaborative design, the thermal durability of the tire mute sponge is improved, the service life of the tire mute sponge is prolonged, the replacement frequency is reduced, differential requirements of long-distance high-temperature service vehicles and heavy-load vehicles can be accurately met, and the high-temperature service bottleneck of traditional tire mute sponge products is broken through.

The invention relates to the technical field of OLED screen production, in particular to efficient air purifying and filtering equipment for an OLED production workshop, a layered filtering assembly is located on one side of a dust-free workshop and comprises a shell, a basic filtering part and an auxiliary filtering part, the basic filtering part and the auxiliary filtering part are located in the shell, and the basic filtering part comprises a primary filtering module, a medium-efficiency filtering module and a ULPA ultra-efficient filtering module; the auxiliary filtering part comprises a metal ion adsorption module and a VOCs degradation module, the metal ion adsorption module is filled with a modified mesoporous material, and an ultraviolet light catalysis assembly and an activated carbon composite layer are arranged in the VOCs degradation module; an air supply mechanism of the circulation assembly is located at the top of the production workshop, an air return mechanism is located in the side wall, the production workshop comprises a passageway and a plurality of dust-free rooms, and first electromagnetic valves are arranged between a main air supply pipe and air supply modules; second electromagnetic valves are arranged between the main air return pipe and the air return modules. According to the invention, the harsh purification requirements of OLED workshops on particles, metal ions and VOCs are met, the product yield is remarkably improved, and the operation and maintenance cost and energy consumption are greatly reduced at the same time.

The application discloses a kind of crushing and screening integrated equipment of medical waste with needle, including crushing module, crushing module, conveying and sorting module, crushing module includes crushing upper seat, crushing lower seat and main cone, the bottom of crushing upper seat is inwardly provided with crushing working cavity, main cone is driven by crushing drive source and eccentric rotation is intermittently changed the width of crushing passage, and plastic particles are extruded and impacted to be crushed, needle mixed on plastic particles falls off, conveying and sorting module includes vibration conveying module and sorting module, vibration conveying module drives plastic particles, metal strip object synchronous forward vibration translation, so that plastic particles fall into plastic output section through particle passage, and strip-shaped metal passes through needle discharge hole from the lower part of sorting seat and is discharged.Compared with prior art, the beneficial effects are as follows: the main cone is eccentrically rotated to perform secondary crushing on the plastic particles, the sorting module is designed according to the outer contour characteristics of the material, and the technical effect of sorting during the forward conveying of the material is realized.

To provide an image forming device that suppresses occurrence of a color stripe that occurs when an image of low image density is formed under a hot and humid environment after repeatedly forming images of high image density.SOLUTION: Provided is an image forming device in which a collected toner having been collected by a cleaning blade contains a toner particle and a titanate metal particle, and the grain size distribution curve of the titanate metal particle satisfies a formula (1). Formula (1): 1.4≤(2b) / (a+b)≤1.95. (In formula (1), a represents a width on a smaller diameter side than a perpendicular at a 50% height of maximum peak height when the perpendicular is lowered from the maximum peak of the grain size distribution curve, and b represents width on a larger diameter side than the perpendicular at a 50% height of maximum peak height when the perpendicular is lowered from the maximum peak of the grain size distribution curve.)SELECTED DRAWING: Figure 1

The application discloses a wear-resistant iron-based welding wire, which comprises an outer skin and a powder core. The outer skin is made of stainless steel, and the powder core comprises metal nitride, hard carbide particles, metal powder and deoxidizing agent powder. The application uses metal nitride to provide nitrogen in the powder core of the welding wire, so that the welding layer is stable in austenite phase, and the use of nickel is replaced. The welding layer of the welding wire has the characteristics of non-magnetism and high wear resistance when welding.

The utility model relates to the technical field of electroplating bath waste liquid treatment, in particular to an electroplating bath waste liquid recycling pretreatment device which comprises a recycling main box, the left side of the recycling main box is fixedly connected with a side box, the top of the side box is provided with a pre-filtering square box, and the left side of the pre-filtering square box is communicated with a liquid inlet pipe. According to the electroplating bath waste liquid recycling and reusing pretreatment device, through the arrangement of the side square box, the pre-filtering square box, the first filter screen, the second filter screen, the third filter screen and the fourth filter screen, the electroplating bath waste liquid recycling and reusing pretreatment device can be conveniently used for recycling and reusing electroplating waste liquid before recycling and treating the electroplating waste liquid; under the connecting action of the side square box and the pre-filtering square box, impurities such as particles, metal and suspended solids in the electroplating waste liquid are filtered and intercepted through a multi-stage pretreatment structure, and the situation that the interior of the water pump body is prone to pollution and a port is prone to being blocked due to long-time frequent direct conveying of the impurities is avoided.

The water-in-oil emulsion cosmetic of the present invention contains (A) an amphiphilic substance and (B) a hydrophobically treated particulate metal oxide formed by hydrophobicating a monoalkyl phosphate ester. The (A) amphiphilic substance contains one or more epoxide derivatives selected from the group consisting of epoxide derivatives represented by the following general formulas (1) and (2). (In the general formula (1), AO represents an oxoalkylene group with 3 to 4 carbon atoms, EO represents an oxovinyl group, R...) 1 and R 2 Each independently represents a hydrocarbon group or hydrogen atom with 1 to 4 carbon atoms, where m and n are integers satisfying 1 ≤ m ≤ 70 and 1 ≤ n ≤ 70. (In the general formula (2), R 3 R 4 and R 5 Each of the elements is independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, A is an alkylene group having 2 to 4 carbon atoms, and p and q are independently integers from 1 to 50. The polymer represented by the general formula (2) has a number-average molecular weight of 10,000 or less and an IOB value of 0.4 to 1.8.

A container for storing a chemical fluid for manufacturing an electronic material, in which after an inspection solution charges the container and stored at 25° C. for 30 days, a sum of a concentration of particulate metal including an iron atom, a concentration of particulate metal including a copper atom, and a concentration of particulate metal including a zinc atom which are measured by a Single Particle ICP-MASS method in the inspection solution is 100 ppt or less.

The utility model relates to the technical field of composite material production, in particular to a wear-resistant millimeter particle-metal composite material production device. The production device comprises an XY tool platform, a bar feeding device, a base material local preheating device, a base material local melting device, a bar melting device and a leveling device. The XY tool platform drives the plate to move according to a preset track; the base material local preheating device is used for locally preheating the plate; the base material local melting device is arranged at the downstream of the movement track of the plate and is used for heating and melting the upper surface of the plate; the bar melting device is located on the downstream of the base material local melting device and used for heating the front end of the metal pipe to enable the metal pipe to be molten and drop on the upper surface of the plate, and the bar feeding device is located above the bar melting device and used for feeding the metal pipe with millimeter-level particles; and the leveling device is positioned at the downstream of the bar feeding device. The production device can promote tight combination of millimeter-level particles and metal, a compact and uniform composite layer is formed, and the wear resistance of the metal material is improved.

Provided is a cosmetic composition with excellent storage stability, feel during use and ultraviolet light blocking effects, in which an inorganic ultraviolet light blocking agent comprising a hydrophobic fine particulate metal oxide, e.g., hydrophobic fine particulate zinc oxide can be uniformly and stably dispersed in an aqueous phase, and in which a reduction in viscosity of a formulation is suppressed even when the structure of the hydrophobic fine particulate metal oxide is dispersed in the aqueous phase. The cosmetic composition comprises (A) a carboxylic acid modified silicone having a specific structure, (B) a water-soluble thickening agent, (C) a basic compound, and (D) a hydrophobic fine particulate metal oxide. The cosmetic composition is useful as a sunscreen cosmetic composition.

Methods of treating lead poisoning are described. The methods involve administering to a patient in need thereof a therapeutically effective dose of a pharmaceutical composition comprising a particulate metal titanate ion exchanger having an empirical formula on an anhydrous basis of: AmTixMyOz where A is an exchangeable cation selected from the group consisting of potassium ion, sodium ion, lithium ion, calcium ion, magnesium ion, hydronium ion or mixtures thereof, and M is optionally at least one framework metal selected from niobium (5+), zirconium (4+), tin (4+), iron (3+), iron (2+), cobalt (2+), and manganese (2+).