154 results about "Metallic particle" patented technology

The application discloses a kind of high-conductivity cable overhead line manufacturing method, including S1, substrate preparation treatment;S2, single wire drawing forming;S3, axial groove structure processing;S4, conductor annealing treatment;S5, conductive layer coating treatment;S6, multi-wire stranding forming.A kind of high-conductivity cable overhead line includes, conductor, conductive layer, insulating layer, shielding layer and outer sheath;The outer surface of the conductor is provided with multiple axial grooves along its axial direction.The application is coated by conductive layer, multiple circular pores in the interior of metal particles enable binder to enter particle, form mechanical interlocking structure, enhance the binding force between metal particles and binder, which makes the conductive layer not easy to fall off from the surface of the conductor after solidification, even if subjected to slight mechanical friction or vibration, conductive layer can still keep intact, in addition, circular pore structure makes metal particles form more compact accumulation inside conductive layer, reduce the gap inside conductive layer, improve the overall structural stability of conductive layer.

This utility model relates to a magnetic impurity removal and feeding device for a grain mill, which effectively solves the problems of difficult cleaning of magnetic impurity removal devices and easy re-mixing of metal impurities. The technical solution includes a feeding pipe, inside which is installed a magnetic impurity removal component. The magnetic impurity removal component includes an inner cylinder and an outer cylinder, with the outer cylinder coaxially sleeved outside the inner cylinder. Several sets of magnetic units are axially evenly distributed on the outer wall of the inner cylinder. Each set of magnetic units includes several bar magnets evenly distributed around the circumference, and the number of bar magnets in each set of magnetic units increases from top to bottom. This utility model, through the setting of magnetic force difference and the flushing of grain particles, causes metal particles to gradually collect at the lower end face of the outer cylinder, which not only prevents metal impurities from being flushed back into the grain, but also makes it easier to clean them when they are collected in one place.

Methods are provided for cleaning a substrate. An exemplary method includes irradiating a pathogenic formation on a surface of the substrate with radiation in a wavelength range of 350 nm to 800 nm, wherein the substrate includes metal particles on the surface of the substrate, and wherein a highest temperature of the metal particles during the irradiation is less than or equal to 45° C.; and delaminating the pathogenic formation from the substrate.

This invention relates to the preparation technology of two-dimensional material composites, specifically a method for coating two-dimensional materials onto the surface of non-metallic particles based on a high-temperature growth process. This method is suitable for the large-scale preparation of continuously coated non-metallic particulate materials. The invention employs a three-step method to form continuously coated two-dimensional materials on the surface of non-metallic particles: First, a continuous metal catalyst coating layer with a nanometer-thickness is formed on the surface of the non-metallic particles; then, the coated non-metallic particles are mixed with micron-sized powder of the same metal catalyst composition; next, a continuously coated two-dimensional material film is grown on the surface of the non-metallic particles using a high-temperature catalytic reaction; finally, the metal catalyst is removed, yielding the two-dimensional coated non-metallic particulate material. This invention can achieve the formation of two-dimensional material coating layers on the surface of a large number of non-metallic particles. The two-dimensional materials exhibit continuous, non-overlapping microstructures, high coating rates, and high crystallinity. Furthermore, this method is easily scalable.

There is provided a method for decreasing leakage of matter from an object to a surrounding, said object being coated with a coating at least partially applied on the object, said coating comprising an at least partially covering layer comprising silver, said object optionally comprising area(s) without said layer, said coating comprising metal particles applied on the layer and optionally on areas without said layer, said metal particles comprising palladium and at least one metal selected from the group consisting of gold, ruthenium, rhodium, osmium, iridium, niobium, neodymium and platinum and wherein the amount of the metal particles is in the interval 0.01-8 μg / cm . Advantages include that leakage of matter such as latex allergens of metal ions can be reduced while the coating is both biocompatible and antimicrobial. Further, the blood clotting can be reduced.

This invention provides a multilayer electronic component having external electrodes that solves problems related to resistance to external impacts, bending strength, and plating defects at corners. [Solution] The external electrodes 131 and 132 of the stacked electronic component include conductive resin layers 131b and 132b containing metal particles and resin rs, the metal particles include spherical particles sp and plate-like particles fp, the cross-sections of the external electrodes in the first direction X and second direction Y include a lower region located at the bottom of the first direction and an upper region located at the top, and the conductive resin layer has a higher area ratio of spherical particles to metal particles in the upper region than in the lower region.

The application discloses a high-purity electronic-grade hydrogen bromide metal ion impurity control device and a control method. The device comprises an adsorption column, a bag-type dust collector and a rectifying tower. First impurity removal mechanisms are arranged at the upper end of the adsorption column and the top of the rectifying tower to remove gas-phase metal impurities. Second impurity removal mechanisms are arranged at the tower kettle of the rectifying tower to remove liquid-phase metal impurities. The bag-type dust collector comprises a flow channel, a keel frame and dust removal bags. Third impurity removal mechanisms are arranged on the flow channel. The dust collector device of metal ions is added to the existing process system, and the structure is designed to realize solid-liquid separation of liquid to intercept metal particles. The structures of the adsorption equipment and the rectifying equipment are designed to remove gas-phase metal impurities and liquid-phase metal impurities, thereby increasing the removal efficiency and effect of metal particles.

A compound contains a metal powder, and a resin composition. The metal powder is a soft magnetic material. The resin composition contains a thermosetting resin. The compound powder contains a plurality of large particles with a particle diameter of greater than 500 μm. A content of the large particles in the compound powder is 40% by mass or more and 100% by mass or less. At least a part of the plurality of large particles includes at least one metal particle constituting the metal powder, and the resin composition covering the metal particle.

A carrierless bimetallic particulate material comprising elemental metallic silver and elemental metallic ruthenium having an average particle size (d50) in the range of 1 to 100 μm, preferably 1 to 20 μm and comprising a silver: ruthenium weight ratio in the range of 1 to 2000 parts by weight of silver: 1 part by weight of ruthenium.

This invention provides a composite metal powder, its preparation method, and its applications. The composite metal powder comprises metal particles and one or more metal wires bonded to the metal particles. The diameter of the metal particles is smaller than the length of the metal wires but larger than the diameter of the metal wires. The composite metal powder of this invention has a spiky, spherical structure with low loose and tap density. When made into powder metallurgy products, it can significantly improve porosity and reduce shrinkage while effectively ensuring the thermal conductivity and mechanical properties of the powder metallurgy products. It also makes the pore size distribution in the powder metallurgy products more uniform and controllable. It is particularly suitable for preparing capillary structures with high reliability, high permeability, and large capillary pull, and has broad application prospects in fields such as heat dissipation devices.

This invention provides a method for forming an interlayer dielectric layer, comprising: forming a plurality of metal wires laid on a first interlayer dielectric layer, with gaps between adjacent metal wires; forming a second interlayer dielectric layer, the second interlayer dielectric layer filling the gaps between the metal wires, and forming dielectric tip on the top surface of the metal wires; forming a tetraethyl orthosilicate protective layer, the tetraethyl orthosilicate protective layer covering the second interlayer dielectric layer and the top edge of the metal wires not covered by the second interlayer dielectric layer; etching back a portion of the tetraethyl orthosilicate protective layer and a portion of the second interlayer dielectric layer to remove the dielectric tip; forming a tetraethyl orthosilicate material layer covering the tetraethyl orthosilicate protective layer and the second interlayer dielectric layer, and grinding the surface of the tetraethyl orthosilicate material layer to make the surface flush. The second interlayer dielectric layer protects the metal wires from being bombarded and sputtered metal particles, reducing the probability of metal particles causing interconnection between metal wires.

Provided are zeolite which, even in a severe thermal environment, maintains the hydrocarbon adsorbency and has increased catalytic reactivity and improved heat resistance, a production method thereof, a hydrocarbon adsorbent and an exhaust gas purifying catalyst. The zeolite is a zeolite having large pores with 12-member rings in a framework structure and encapsulating metal-containing particles. The metal contained in the metal-containing particles preferably contains at least one of metals selected from the group consisting of Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Sn, Zr, Rh, Ru, Pd, Pt, Ag, Ir, Au, Nb and Mo.

Embodiments of the present application provide a case (10), a battery (1100), and an electrical device, the case (10) including a case body (100) having a communication hole (101) and a partition member (200) installed in the case body (100) and sealing the communication hole (101), wherein the partition member (200) is configured to melt and fall out in the event of thermal runaway in the battery cell (20), and in embodiments of the present application, the partition member (200) does not allow communication between the inside and outside of the case body (100). The communication holes (101) can be sealed in such a way that impurities such as metal particles from outside the case body (100) cannot enter the case body (100) through the communication holes (101). This reduces the probability of insulation failure caused by metal particles from outside the case body (100) entering the case body (100), and the partition member (200) can melt down due to the heat from thermal runaway, allowing the heat to be released in a timely manner, thereby reducing the risk of heat concentration causing combustion or explosion.

The application relates to the technical field of optical processing, and provides a zinc selenide aspheric lens and a numerical control polishing process thereof, which is carried out by using a numerical control polishing machine, comprises main steps of rough polishing, fine polishing, finishing and the like, and process parameters are adjusted according to the characteristics of zinc selenide, so that the zinc selenide aspheric lens with a diameter of less than 320 mm can be polished, the global surface type PV of the zinc selenide aspheric lens is controlled to be less than 0.3 microns by means of the numerical control polishing machine, white zinc metal particles generated due to heating of the lens surface in the polishing process are avoided, the surface smoothness of the finished product reaches 60 / 40, and the laser level is reached. The application also has reference significance for polishing the surface of zinc selenide with a diameter of more than 320 mm.

A magnetic core containing specific particles is provided. The magnetic core has a surface portion having a small distance from an outermost surface of the magnetic core and a central portion having a large distance from the outermost surface of the magnetic core. The specific particles have an oxide phase having a specific thickness, and the specific particles contained in the surface portion and the specific particles contained in the central portion have a specific relationship in thickness of the oxide phase. Alternatively, the magnetic core contains soft magnetic metal particles. The soft magnetic metal particles have an oxide phase on a surface. A relationship between a maximum thickness portion of the oxide phase and an anti-maximum thickness portion is in a specific relationship.

The present application relates to the technical field of functional composite materials, and particularly relates to a shielding and heat dissipating material containing graphene and a production method thereof, which comprises a polymer matrix, graphene dispersed in the polymer matrix and optional metal micro / nano particles, the graphene and the metal micro / nano particles are mutually overlapped in the matrix to form a three-dimensional continuous network structure. The present application builds an interconnected three-dimensional network in the material interior through the synergistic effect of functionalized graphene and metal particles, and the network can be used as a channel for fast migration of electrons to realize electromagnetic shielding and can be used as a high-speed path for phonon transmission to realize efficient heat diffusion.

The application provides a semiconductor device and a forming method, which comprises the following steps: providing a semiconductor substrate, the semiconductor substrate is provided with a first interlayer dielectric layer; forming a plurality of metal lines on the first interlayer dielectric layer, the metal lines are laid on the first interlayer dielectric layer, and gaps are formed between adjacent metal lines, the metal lines comprise a bottom titanium metal layer, an aluminum metal layer and a top titanium metal layer which are stacked in sequence; forming a dielectric antireflection layer on the top titanium metal layer, the dielectric antireflection layer covers part of the top titanium metal layer and exposes edges of the top titanium metal layer; forming a silicon nitride protective layer on the dielectric antireflection layer and the edges of the top titanium metal layer, the silicon nitride protective layer covers at least the top surface and the sidewall of the top titanium metal layer, and the silicon nitride protective layer on the adjacent metal lines has gaps; and depositing an oxide on the silicon nitride protective layer to form a second interlayer dielectric layer, the interlayer dielectric layer fills the gaps. The application reduces the probability of metal particles leading to interconnection between the metal lines.

This invention discloses a photothermal synergistic phase change composite thin film based on a heterostructure and its preparation method, belonging to the technical field of nanomaterials and composite phase change materials. The composite thin film includes a heterostructured photothermal carrier film and a phase change material confined and loaded thereon. The heterostructured photothermal carrier film uses manganese oxide coated with a carbon layer as a framework, with heterostructured functional units composed of metal particles constructed in situ on its surface. Sodium manganate, as a precursor film for the heterostructure construction, is modified with a metal-organic coordination structure and derivatized in an inert atmosphere to form a heterostructure interface on its surface where the carbon layer and metal particles are coupled in situ, further confining and loading the phase change material. The carbon layer and metal particles form a tightly contacted interface structure on the manganese oxide surface, which enhances light absorption and regulates heat conduction behavior under illumination, thereby achieving efficient conversion of light energy into heat energy and synergistically completing the storage and release of heat energy with the phase change material. This invention effectively improves the photothermal conversion efficiency and thermal energy utilization performance of composite films by constructing a heterogeneous structure interface coupling carbon layers and metal particles. The resulting composite film has rapid heating, stable heat storage and good cycle stability, and has good application prospects in the fields of solar thermal storage and thermal management.

Provided is a conductive paste in which voids, cracks, and the like are less likely to occur.　This conductive paste contains metal particles and a solvent. The metal particles contain first nanoparticles having an average particle diameter of 80-500 nm. When thermogravimetric analysis is performed in a nitrogen atmosphere at a temperature warming speed of 10°C / minute from 25°C or lower, items [1] and [2] are satisfied. [1] The residual weight ratio at 120°C is 98% or more [2] The weight reduction ratio Δ 120°C-160°C from 120°C to 160°C is 2.0-5.0%

This invention belongs to the field of battery technology. It provides a pre-lithiation separator, its preparation method, and its applications. The pre-lithiation separator includes a separator substrate with a coating. The coating includes a lithiophilic material, a reinforcing material, and a binder. The lithiophilic material includes at least one of copper oxide particles, graphene, silver particles, or gold particles. The reinforcing material includes inorganic non-metallic particles. A lithium metal layer is disposed on the side of the coating away from the separator substrate. The lithiophilic material has a strong affinity for lithium, promoting uniform lithium deposition and enhancing the binding between the separator and lithium. The reinforcing material enhances the heat resistance and mechanical properties of the separator, resisting damage to the separator during the preparation of the lithium metal layer. By setting this specific coating, the lithium uniformity of the pre-lithiation separator can be fundamentally improved, thereby enhancing the mechanical properties and heat resistance of the pre-lithiation separator, which is beneficial for further improving battery performance.

The present invention relates to the fields of chemistry, nanotechnology and materials engineering, and discloses a polymer composite comprising at least one polymer matrix and at least one filler consisting of metal particles. The invention also discloses a method for modulating the properties of a polymer matrix comprising incorporating a filler consisting of metal particles into the polymer matrix. One of the advantages offered by the invention is that of extending the service life of polymers or restoring the properties of a recycled polymer to a state comparable to that of virgin polymer; furthermore, it improves the material's efficiency and cost-effectiveness, resulting in gains in hydrophobicity, weather and UV resistance, and mechanical, thermal and physicochemical properties, thereby expanding its applicability and added value. The invention also describes use of the aforementioned polymer composite and the use of metal particles to restore the properties of a recycled polymer matrix to the virgin state thereof.

Embodiments of the present application provide a box body (10), a battery (1100), and an electrical device, the box body (10) comprising a main box body (100) and a separator (200). Through holes (101) are formed on the main box body (100), and the separator (200) is arranged in the main box body (100) and blocks the through holes (101). The separator (200) is configured to be melted through when thermal runaway occurs in a battery cell (20). In the embodiments of the present application, the separator (200) can block the through holes (101), such that the inside and outside of the main box body (100) are not in communication, and impurities such as metal particles outside of the main box body (100) cannot enter the main box body (100) from the through holes (101), thereby reducing the probability of insulation failure caused by metal particles outside of the main box body (100) entering the main box body (100). Moreover, the separator (200) can be melted though by heat generated by thermal runaway to promptly discharge heat, reducing the hidden danger of combustion or explosion caused by the occurrence of heat accumulation.

The present application relates to the technical field of molecular sieve, and discloses a titanium silicalite molecular sieve and a preparation method thereof, the preparation method comprising the following steps: (1) performing first contact of an aqueous solution containing a silicon source, a titanium source and an alkali source with a solution containing a metal salt; wherein the metal salt comprises a Group VIII and / or Group IB metal salt; (2) performing second contact of the solution obtained through the first contact with a dispersion liquid containing metal particles; wherein the metal particles comprise Group VIII and / or Group IB metal particles; (3) sequentially performing hydrothermal crystallization, solid-liquid separation and calcination on the solution obtained through the second contact. The method of the present application can improve the crystallinity of the titanium silicalite molecular sieve, and can make the doped metal elements enter the framework of the titanium silicalite molecular sieve, thereby avoiding the problem that the doped elements are prone to falling off and improving the catalytic performance of the titanium silicalite molecular sieve.

This invention discloses a green recycling and precious metal extraction method for lead-free printed circuit boards, belonging to the field of precious metal extraction technology. The method involves first freezing the circuit board with liquid nitrogen, then crushing and air-separating it under an alternating magnetic field. The remaining particles are then soaked in a composite organic acid solution, treated with a combination of ultrasound and microwave, rinsed, and floated. The metal particles are dissolved in a mixture of nitric acid and hydrogen peroxide, and a composite precipitant is added to precipitate the precious metals. The precipitate is reduced with hydrogen to obtain crude precious metals, which are then electrolytically refined. After refining, a composite anti-oxidation film is deposited. Finally, wastewater and waste gas are treated using a combination of methods for environmental protection, achieving green recycling and efficient extraction of precious metals. The optimized coordination of each step in this invention improves the metal recovery rate and purity, resulting in refined precious metals with a purity exceeding 99.95% and an antioxidant capacity increased by 30%-50%. The environmentally friendly treatment effectively reduces pollution and can be used in high-end industries, offering both economic and environmental benefits.

The present invention provides a metal fine particle-containing glass from which it is possible to obtain a high quality glass in which unnecessary coloring and defects which occur during manufacturing when being subjected to an oxidation treatment are suppressed. A metal fine particle-containing glass according to the present invention contains metal fine particles. The number densities of the metal fine particles for respective particle sizes in an arbitrary cross-section are: 0-1000 particles / mm2 for particles having a diameter greater than 1 µm but not greater than 5 µm; 0-30 particles / mm2 for particles having a diameter greater than 5 µm but not greater than 10 µm; 0-5 particles / mm2 for particles having a diameter greater than 10 µm but not greater than 100 µm; and 0-0.5 particles / mm2 for particles having a diameter greater than 100 µm but not greater than 500 µm. Particles having a diameter greater than 500 µm are substantially not contained. The proportion of area occupied by the metal fine particles in an arbitrary cross-section is 0-0.15% with respect to the total area.

The application discloses a preparation method of a copper-based powder metallurgy composite brake pad and belongs to the technical field of brake disc preparation.The polyethylene glycol, lithium functional group and organic copper complex component in the lithium-based dispersant can improve the surface energy of metal particles, so that the metal particles can be better dispersed in a liquid; this helps to ensure that the metal particles can be uniformly dispersed in the whole working environment and is favorable for adjusting the particle size of the material; the metal particles are stabilized, so that the metal particles are prevented from being gathered into large particles again and the processing and use performances are affected; the copper-based powder metallurgy composite brake pad prepared by the application has low abrasion and good comprehensive performance, and is widely applied in the fields of high-speed trains, airplanes and the like.

A stator core configured to have a plurality of teeth each including a peripheral surface and a first end surface, wherein each of the plurality of teeth is formed of a dust core, the dust core includes a plurality of coated particles, and each of the plurality of coated particles includes a metallic particle and an electrically insulating coating, and wherein each of the first end surfaces has first regions formed of cross sections of the metallic particles and second regions formed of the electrically insulating coatings between the first regions, each of the peripheral surfaces is made of an oxide containing a constituent element of the soft magnetic material, an average thickness of the oxide in each of the peripheral surfaces is 10 μm or less, and a difference between a maximum value and a minimum value of a first heights is 0.02 mm or less.

This utility model relates to the field of insulation board processing technology, and discloses a waste environmental protection processing device, including a box body. A feeding hopper is fixedly connected to the top of the box body, and a crushing component is installed on the inner wall of the feeding hopper. A hose is fixedly connected to the bottom of the feeding hopper, and a discharge pipe is fixedly connected to the bottom of the hose. A support plate is fixedly connected to the front of the box body, and a movable toothed plate is slidably connected to the top of the support plate. The movable toothed plate is connected to the discharge pipe via a swinging component. A slider is slidably connected to the inner wall of the front of the box body, and a second motor is fixedly connected to the front of the slider. The second motor is connected to an electromagnet via a moving component. In this utility model, by ensuring that the material falls evenly into the collection box below, material accumulation is avoided, creating favorable conditions for the subsequent electromagnet to attract metal particles. Furthermore, by moving the electromagnet back and forth, the metal particles in the material are adsorbed, allowing the metal particles to be recycled and conserving resources.