40 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 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.

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 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.

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+).

The present invention provides a laminated film and packaging material that are highly recyclable and have good oxygen barrier properties because they do not use an anchor coat layer or adhesive, as well as a method for manufacturing a laminated film. [Solution] The laminated film 10 according to this embodiment comprises an olefin resin film 20 and a transparent vapor-deposited layer 40 laminated in direct contact with the olefin resin film 20. The olefin resin film 20 comprises at least a core layer 30 and a surface layer 31 in this order. The transparent vapor-deposited layer 40 and the surface layer 31 are adjacent to each other, and the surface layer 31 contains metal oxide particles 32, with a portion of the surface of the metal oxide particles 32 exposed from the surface layer 31.

The invention relates to the technical field of composite metal materials, in particular to a production device and a preparation method of a wear-resistant millimeter-scale particle-metal composite material. The invention provides a preparation method of a wear-resistant millimeter-scale particle-metal composite material, which comprises the following steps: S1, carrying out local area preheating on a plate made of a first metal material, and then heating and melting the area; and S2, the millimeter-level particles of the second material are loaded into a metal pipe made of the first metal material, the front end of the metal pipe is heated, so that the millimeter-level particles are molten and drop on a local area formed after the plate is heated and molten, then the area is leveled, and finally the wear-resistant millimeter-level particle-metal composite material is prepared. According to the preparation method provided by the invention, the millimeter-sized particles and the metal material can be well compounded, cracks are avoided, and the millimeter-sized particles are uniformly distributed in the metal substrate.

The application discloses a preparation method of a ceramic preform and the ceramic preform, and steps are as follows: at least two of Al2O3 powder, B4C powder and iron-based self-fluxing alloy powder are mixed to obtain uniformly mixed powder; the pretreated ceramic particles are placed on a laser cladding workbench, the mixed powder is synchronously sent into a molten pool, and the ceramic particles are metallized through laser cladding; the ceramic particles after laser cladding treatment are directly added into a mold without cooling, and then are placed into a device with heating and pressurizing functions together, are solidified after heating and pressurizing, are demolded, and the ceramic preform block is obtained; according to actual requirements of a workpiece, one or more ceramic preform blocks are fixedly placed in a casting cavity; then metal liquid is poured, and after cooling, the metal ceramic composite wear-resistant product is obtained after heat treatment and machining. The application realizes metallization of the ceramic particles itself, does not use a binder in the preparation process of the preform, does not additionally add active elements, is environment-friendly, and has a simple process.

The present invention relates to a hydrogen storage powder which comprises a particulate metal hydride that is capable of absorbing / releasing hydrogen, and a heat-generating substance that absorbs electromagnetic waves and generates heat, wherein the bulk density of the heat-generating substance is 0.57 g / cm3 or less.

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.

The present invention provides a method for producing spherical metal particles, the method comprising the steps of providing a particulate metal precursor comprising flake-like particles having a maximum dimension greater than 250 microns; grinding the particulate metal precursor by dry milling in an impact chamber, thereby producing a ground material comprising non-spherical ground particles; classifying the ground material to separate a fraction of the non-spherical ground particles from larger and / or smaller particles, wherein the classification occurs during and / or after grinding; and spheroidizing the separated non-spherical ground particles by dry milling in the impact chamber or in a separate impact chamber, thereby producing spherical metal particles, wherein each impact chamber comprises a rotor configured to rotate within the impact chamber, the rotor comprising a plurality of impact surfaces that strike the particles in the impact chamber as the rotor rotates during dry milling.

A method for removing Pb2 + ions from a fluid, such as a gastrointestinal tract fluid, is described. The method comprises contacting the gastrointestinal tract fluid with a particulate metal titanate ion exchanger represented by the empirical formula: AmTixMyOz wherein A is an exchangeable cation selected from the group consisting of potassium ions, sodium ions, lithium ions, calcium ions, magnesium ions, hydrogen hydrate ions, and 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 +). The particulate metal titanate ion exchangers of the present disclosure are synthesized in the presence of complexing agents including at least one polyhydroxy-containing complexing agent (MHCA) that promote metal transport and incorporation while conferring beneficial properties such as large aggregate sizes, exhibiting good particle size distribution, and large porosity.

The invention discloses a nano thorn with a high length-diameter ratio, a preparation method of the nano thorn and application of the nano thorn in an SERS (Surface Enhanced Raman Scattering) substrate. The preparation method comprises the following steps: preparing metal core-shell nanoparticles, and enabling a metal core and a metal shell layer of the metal core-shell nanoparticles to have lattice mismatch; mixing the metal core-shell nanoparticles with a solvent to form slurry; coating the slurry on the surface of a substrate; and carrying out annealing treatment, forming attachment sites on the metal shell by utilizing lattice mismatch between the metal core and the metal shell layer and mutual diffusion action of composition elements of the metal core and the metal shell layer, and carrying out outward single crystal growth on element atoms of the metal shell on the sites to form the nano thorn structure. The nano thorns are formed by high-temperature annealing of functionalized metal core-shell nanoparticles, a large number of nano thorn structures with high length-diameter ratios are densely or uniformly distributed on the surfaces of the core-shell nanoparticles after annealing, and a large number of tips with high electromagnetic gain characteristics can be provided as SERS'hot spots', so that trace detection of molecules and particulate matters is realized.

The application discloses a kind of multilayer nano activation material and its preparation method and in sterilization and deodorization application, belong to air purification material technical field, including structural reinforcement layer, catalytic oxidation layer, isolation layer, acid source layer;The structural reinforcement layer includes cystamine modified chondroitin sulfate and nanocellulose;The catalytic oxidation layer includes mesoporous silica loaded with sodium chlorite and metal-phenolic nano particles@metal-doped hollow mesoporous manganese dioxide;The isolation layer includes pullulan and hydrophobic nanosilica;The acid source layer includes citric acid microcapsule and sodium alginate.The material set catalytic degradation, intelligent sterilization, malodor decomposition multi-functional synergy integration, realize stable storage, intelligent trigger and efficient synergistic purification organic unity, can be widely applied to air purifier, washing and protection product, textile fiber, building paint, wall material and so on many kinds of scene.

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.

To provide a toner which can be fixed at a low temperature by containing a crystalline polyester-based resin in toner particles, has sufficient hot offset resistance, and can suppress the occurrence of fogging and the deterioration of the uniformity of image density over a long period of time.SOLUTION: The toner has toner particles containing an amorphous polyester-based resin, a crystalline polyester-based resin and wax. The toner particles include metal-oxide particles having a number-average particle size of 60nm or less. The metal oxide particles are surface-treated with a hydrophobizing agent containing a linear alkyl group having 6 or more carbon atoms. The content of the metal oxide particles in the toner particles is from 0.02% by weight to 2% by weight.SELECTED DRAWING: Figure 1

A safety device designed to be provided in or on a substrate or in or on one or more layers applied to the substrate, comprising: a. a surface relief structure and b. a coating, wherein i. the surface relief structure is filled with the coating to form a flat surface, and wherein the coating has a refractive index greater than the refractive index of the surface relief structure, or ii. the coating forms all or part of the surface relief structure, wherein the surface relief structure of the coating is filled with one or more transparent lacquer layers to form a flat surface, wherein, for each alternative, the coating comprises particles of at least one metal oxide dispersed in a transparent lacquer, wherein the coating comprises 1 to 60 wt.-% metal oxide comprises, wherein the particles have a primary crystallite size of 1 to 100 nm, and wherein the concentration of the particles in the coating is high enough to induce a refractive index shift, so that the optical effect of the surface relief structure remains essentially unaffected or is even enhanced.