828 results about "Metallic particle" patented technology

The invention discloses a conductive paste, a metallized substrate and a metallization process for manufacturing the metallized substrate, the conductive paste comprises metal particles, the particle size of the metal particles is 0.1-10 [mu] m, and the mass ratio of the metal particles is 80-98%; in the metallization process, a copper layer is arranged on the hole wall of a through hole or a blind hole of a substrate, then conductive slurry is filled in the hole with the copper layer, heating sintering treatment is carried out, and after heating sintering is carried out in an inert gas atmosphere at the temperature of less than or equal to 300 DEG C, metal particles can be fused to form a connection structure or a eutectic structure. A reinforcing layer can be formed between the nano metal particles and the copper layer, and the reinforcing layer is a metal bonding layer or an intermetallic compound layer. The metallization mode is suitable for a through hole or a blind hole of a glass / silicon / ceramic substrate with a high aspect ratio and a micro aperture, and the technical problems that complete filling is difficult to achieve and filling defects exist in an existing electroplating process, the electrical resistivity of conductive paste is high, and the interface bonding force is insufficient can be solved.

The invention discloses a solar cell and a photovoltaic module. The solar cell includes a semiconductor substrate having a first semiconductor layer on a first surface; the passivation layer at least covers one side, deviating from the semiconductor substrate, of the first semiconductor layer; a first seed layer electrically connected to the first semiconductor layer through the passivation layer; the first seed layer comprises a plurality of first metal particles and a plurality of second metal particles stacked on at least local surfaces of the first metal particles, the particle size of the first metal particles is a, the particle size of the second metal particles is b, and a-b is greater than or equal to 40nm and / or a is greater than or equal to 1.5 b. The surface roughness of the first seed layer can be increased, so that the specific surface area of the first seed layer is increased, more metal contact points exist between the first seed layer and the first grid line, more metal contact is formed, the contact resistance between the first seed layer and the first grid line is reduced, and the power generation efficiency of the battery is improved; meanwhile, the adhesive force of the first grid lines is improved, and the first grid lines can be prevented from falling off.

The invention relates to a liquid metal gel material, a preparation method thereof and a thermal interface material, and belongs to the field of thermal interface materials. Wherein the liquid metal gel material comprises a modified polyethylene film, and the modified polyethylene film comprises a polyethylene film and metal particles attached to at least part of the surface of the polyethylene film; the modified polyethylene film is at least partially filled with the liquid metal. The liquid metal gel material provided by the invention has the advantages of low thermal resistance, high thermal conductivity, excellent mechanical properties and high stability in a dynamic environment, and can meet the use requirements of high-end fields on thermal interface materials.

The invention discloses an impedance self-adaptive high-frequency probe, a probe card and a testing method, and belongs to the technical field of semiconductor high-frequency testing. When an existing high-frequency probe is used for a crimping test, a conductive probe body of the existing high-frequency probe generates mechanical deformation due to contact pressure, so that characteristic impedance is deviated, and uneven pressure in an array causes impedance dispersion. The problem is solved by coating the outer side of the conductive needle body with a composite material layer, the composite material layer is composed of an elastic insulating matrix and metal particles dispersed in the elastic insulating matrix, the metal particles have bimodal particle size distribution, and the total integral number is 30%-40%. When the probe is pressed, the composite material layer is subjected to reversible microscopic reconstruction, the effective dielectric constant of the composite material layer is increased along with the increase of the pressure, and the generated impedance change can counteract the impedance drop caused by the deformation of the conductive probe body, so that the self-adaptive stability of the characteristic impedance of the probe under the change of the pressure is realized. The impedance dispersion of the probe array can be remarkably reduced, the consistency and precision of high-frequency testing are improved, and the process compatibility is good.

Provided are methods, systems, and computer program products for lane keep tracking and / or localization of a vehicle using a radar to detect metallic particles in paint applied to lane markings or curb markings. An example method may include: causing a radar system of a vehicle to output radio waves; receiving a radar image from the radar system corresponding to returned radio waves; determining a portion of the radar image includes lane or curb markings, wherein the lane or curb markings are embedded with metallic particles; and determining a location of the vehicle based at least in part on the determined portion of the radar image that includes the lane or curb markings.

The invention discloses a test method for exploring the inhibition effect of a coating on GIL metal particles, and relates to the technical field of high-voltage transmission lines and insulation, the test is carried out in a GIL test platform, and the test method comprises the following steps: S1, selecting a coating material; s2, determining a film covering position; s3, selecting proper particles; s4, determining a particle placement position; s5, carrying out a pressurization test; and S6, observing the motion state of the particles under high voltage, recording the take-off voltage, the stop voltage and the distribution range of the particles, and analyzing the effect of the film on inhibiting the take-off of the particles. According to the test method for exploring the inhibition effect of the covering film on the GIL metal particles, the inhibition effect of the covering film on the metal particles in different shapes is observed and compared through tests, and a basis is provided for practical application of the covering film.

This invention relates to a defect-laden porous carbon support for a stable iron-based diatomic catalyst, its preparation method, and its application in air batteries, belonging to the field of catalyst preparation technology. The preparation method involves the following steps: ZIF-8 is subjected to high-temperature heat treatment under a nitrogen atmosphere, followed by rapid cooling under a liquid nitrogen atmosphere; then mixed with an iron metal source, and ethanol is added for defect backfilling. After stirring and drying, a second heating is performed to obtain the catalyst. This method can firmly and precisely anchor two metal atoms onto the carbon support, ensuring the formation of stable diatomic sites and their full exposure. This ensures that the active sites are in full contact with the substrate to exert their efficient catalytic effect, avoiding particle agglomeration that could lead to clusters or metal particle formation, causing some sites to be encapsulated and hindering their high activity. This method can be effectively applied in air batteries.

The invention discloses a coating method and a coating device for coating superfine powder. The coating method comprises the following steps: S1, conveying original powder into gas-powder mixing equipment through a mixing pipeline; s2, a feeding unit in the gas-powder mixing equipment is started, meanwhile, an electric arc heating device is started, and the to-be-coated metal material is instantly melted through the high temperature of an electric arc; s3, the molten metal material to be coated forms atomized mixed liquid in gas-powder mixing equipment, and the atomized mixed liquid is conveyed into a collecting unit through spray holes; and S4, in a collecting unit, enabling the metal particles to be coated in the atomized mixed liquid to form a coated powder air mass, forming a coating or powder through deposition, and finally cooling and separating to obtain the coated ultrafine powder material. By adopting the coating method and the coating device, different types of metal materials or ceramic powder can be prepared, and the prepared coated ultrafine powder particles are controllable in particle size and high in purity, so that the application range of the ultrafine powder can be expanded.

The invention relates to a secondary battery, a preparation method thereof and an electric device. The secondary battery comprises a negative electrode plate, the negative electrode plate comprises a negative electrode current collector and a negative electrode active layer laminated with at least one surface of the negative electrode current collector, the negative electrode active layer comprises a negative electrode active material and metal particles, and at least part of the metal particles have a porous structure; metal elements in the metal particles comprise at least one of IVA group metal elements and VA group metal elements. According to the embodiment of the invention, the metal particles are added into the negative electrode plate, the porous structures on the surfaces of the metal particles are relatively stable and not easy to collapse, stable transmission of active metal lithium ions can be facilitated, and meanwhile, the negative electrode plate is not easy to expand in volume in the cyclic charge-discharge process, so that the cycle performance of the battery is improved, and the service life of the battery is prolonged.

The invention relates to metal powder gas atomization manufacturing equipment and method capable of inhibiting satellite powder, the metal powder gas atomization manufacturing equipment comprises a metal smelting system, an atomization cavity and an atomization gas injection system, and the atomization gas injection system is used for atomizing molten metal in the atomization cavity and forming an atomization cone; the device further comprises an energizing electrode, an attraction electrode and a material suction device, one of the energizing electrode and the attraction electrode is connected with positive electricity, the other one of the energizing electrode and the attraction electrode is connected with negative electricity, and the energizing electrode is arranged on a path before molten metal generated by the metal smelting system enters the atomization cavity and used for adding charges to the molten metal and used for adding charges to the molten metal falling from the metal bar. The attraction electrode is arranged in the atomization cavity, located around the atomization cone and used for attracting the charged metal particles; the material suction device comprises a powder suction opening formed in the periphery of the atomization cone and a suction mechanism used for enabling the powder suction opening to generate negative pressure suction force.

To provide activated carbon capable of suppressing the occurrence of internal short circuits. [Solution] Powdered activated carbon, in which the number of metal particles having a short side length of 45 μm or more among the metal particles remaining on a sieve obtained by sieving the powdered activated carbon using a sieve with a mesh size of 32 μm conforming to JIS Z 8801 is 30% or less of the total number of metal particles remaining on the sieve.

The present invention relates to a precursor for the production of an alloy used as a catalyst. The precursor comprises a metallic substrate, a layered structure comprising binders, metallic particles, and at least one metal oxide, metal phosphide, and / or metal sulfide, wherein the layered structure is arranged on the metallic substrate.

A box body, a battery, and an electrical device, the box body comprising a main box body and a separator. Through holes are formed on the main box body, and the separator is arranged in the main box body and blocks the through holes. The separator is configured to be melted through when thermal runaway occurs in a battery cell. In the embodiments of the present application, the separator can block the through holes, such that the inside and outside of the main box body are not in communication, and impurities such as metal particles outside of the main box body cannot enter the main box body from the through holes, thereby reducing the probability of insulation failure caused by metal particles outside of the main box body entering the main box body.

A metal-semiconductor contact structure, a solar cell and a photovoltaic module are provided. The metal-semiconductor contact structure includes: a doped semiconductor layer; a metal electrode in contact with the doped semiconductor layer; a first conductive region provided at a contact interface between the doped semiconductor layer and the metal electrode, and including: a first conductive structure including a plurality of first metal particles distributed in the first conductive region, at least part of the first conductive structure contacting the doped semiconductor layer; and a second conductive structure, wherein the second conductive structure is radial, at least part of the second conductive structure is located on a surface of the first metal particles, and the second conductive structure has a radial direction towards the metal electrode; wherein the metal electrode, the first metal particles, and the second conductive structure all have a same metal element.

The invention relates to soft magnetic metal particles, soft magnetic metal powder, a magnetic core, a magnetic component, and an electronic device. The soft magnetic metal particle includes a metal particle and a film covering the metal particle. The coating film contains at least an oxide of X1, an oxide of X2, and Mg. And X1 is Fe, Co or Ni. And X2 is P, Si, B, Na, Al, Ca, Bi, Ba or Zn. The coating film includes a first coating portion in contact with the metal particles, and a second coating portion in contact with the first coating portion. The first coating portion is a portion in which the atomic concentration of X1 is equal to or greater than the atomic concentration of X2. The second coating portion is a portion in which the atomic concentration of X1 is lower than the atomic concentration of X2. The maximum point of the atomic concentration of Mg is included in the coating film, and [Mg] / [X1] is 0.05-2.00 (inclusive) where [Mg] is the atomic concentration of Mg at the maximum point and [X1] is the atomic concentration of X1 at the maximum point.

The invention relates to preparation of a lignin-based monatomic hard carbon material, the hard carbon material and a secondary battery, and belongs to the related technical field of secondary batteries. Lignin is dispersed in water, alkali liquor is added, then a mixed solution is added, and the mixed solution is a mixed solution of metal salt and a pore forming agent; then carrying out water bath reaction and aging, centrifuging, and discarding supernatant to obtain an intermediate; dispersing the intermediate in water, adding a metal atom anchoring agent, uniformly stirring, and freeze-drying; the mixed material is pre-carbonized in a nitrogen atmosphere, metal atoms are anchored, and pre-carbonized powder is obtained; the pre-carbonized powder is subjected to acid pickling to remove metal particles; and carbonizing the acid-washed powder to obtain the monatomic hard carbon material. According to the invention, addition of metal atoms is anchored by doping non-metallic elements, so that excessive removal of the metal atoms in the pickling process is prevented, disorder of the material is effectively improved, active sites of the material are increased, overall dynamics of the material is improved, and rate capability is enhanced.

The invention provides a conductive backboard, a preparation method thereof and a photovoltaic module. The conductive backboard comprises a supporting layer, a conductive layer and an insulating layer which are stacked in sequence, the conductive layer comprises a conductive circuit area, the conductive circuit area comprises a conductive material, and the conductive material is a conductive adhesive and / or a conductive coating; the conductive material comprises the following components in parts by weight: 20-40 parts of matrix resin, 50-80 parts of conductive filler and 5-10 parts of a curing agent, wherein the conductive filler is selected from any one or more of metal particles, metal oxide, a fiber material, a carbon-based material, a polythiophene polymer and a mica material with a metal layer on the surface. According to the conductive backboard, the composition of the conductive material in the conductive layer is optimized, so that the conductive layer has good ductility, is better matched with the thermal performance of a polymer and is better compounded with the supporting layer, and the conductive performance, the mechanical strength and the weather resistance of the conductive backboard are improved, so that the photoelectric conversion efficiency of a photovoltaic module is improved.

The invention relates to the technical field of lead-acid batteries and novel electrochemical energy storage materials, in particular to a graded porous carbon negative electrode material with nano-metal synergistic activity and application of the graded porous carbon negative electrode material in a long-life lead-carbon battery. The material takes hierarchical pore structure carbon as a matrix (which has micropores, mesopores and macropores at the same time, and the specific surface area reaches 1000m < 2 > / g), and is uniformly loaded with nano metal particles (such as Fe, Co, Sn and the like with the particle size of lt; and the content is 1%-10%). By optimizing the carbon pore structure and introducing the nano-metal, sulfation is remarkably inhibited, the capacitance effect is enhanced, and the hydrogen evolution reaction is reduced, so that the cycle life of the lead-acid battery is prolonged, and the charge-discharge performance of the lead-acid battery is improved. The preparation method is simple and controllable, is suitable for a lead-acid battery negative electrode additive, can be widely applied to the fields of start-stop batteries, energy storage systems and the like, and has important industrial application value.

The present invention relates to a method for electroless copper depositing onto a surface of a non-conductive or carbon-fibres containing substrate, the method comprising the steps: (I) activating the surface of a non-conductive or carbon-fibres containing substrate for electroless copper depositing, the activation method using an aqueous, palladium-free activation composition comprising (i) a first species of dissolved transition metal ions which are copper ions and additionally metal particles thereof which are copper particles, (ii) one or more than one complexing agent, and (iii) permanently or temporarily one or more than one reducing agent, and (II) an enhancer treatment of the activated surface of a non-conductive or carbon-fibres containing substrate, the enhancer treatment method using an alkaline aqueous enhancer composition comprising water and a formaldehyde compound; and (III) an electroless copper depositing of the enhanced surface of a non-conductive or carbon-fibres containing substrate, the electroless copper depositing method using an electroless copper metallizing solution and substrates, and method for subsequent metallization.

The invention discloses a control system and method for a precise automatic multi-axis numerical control electric spark forming machine, and relates to the technical field of electric spark forming machines, and the system comprises a motion control module which is used for controlling an electrode of the electric spark forming machine to execute an open circuit discharge interface detection process to determine an initial interface, and controlling the electrode to be located on the initial interface; the flushing control module is used for responding to the detected initial interface, controlling the working solution to flow at a first speed in a first time interval and flow at a second speed in a second time interval after the first time interval to flush metal particles generated by the metal material, the first speed is larger than the second speed, and the first speed is larger than the second speed. The working fluid flows at a second speed; and the discharge detection module is used for determining the initial interface as an open-circuit discharge interface if the discharge of the electrode is detected in the second time interval in response to the end of the first time interval. According to the invention, the accuracy of determining the open-circuit discharge interface is improved.

The invention provides a method for providing a composite object (400) comprising a 3D printed part (1) adhering to a metal part (420), wherein: the method comprises the step of providing the metal part (420) followed by a 3D printing stage comprising layer-wise depositing 3D printable material (201) by means of fused deposition modeling on the metal part (420), to provide the composite object (400); wherein the 3D printed part (1) comprises a layer (322) of 3D printed material (202); the 3D printing stage comprises guiding the 3D printable material (201) through a printer nozzle (502) at a nozzle temperature TN; during a first 3D printing stage of the 3D printing stage, wherein 3D printable material (201) is deposited on the metal part (420), the following applies: (i) the 3D printable material (201) comprises first 3D printable material (2011) comprising a thermoplastic material (401) and metal particles (410); wherein metal (411) of the metal particles (410) has a melting temperature TP, and (ii) TN>TP.

The solvated metal particle-coating system includes a metal additive and a polar outer-sphere electron transferring solvent. The metal additive is solvated in the polar outer-sphere electron transferring solvent. The polar outer-sphere electron transferring solvent may include liquid ammonia, methylamine, and / or hexamethylphosphoramide. The metal additive may include an alkali metal and / or an alkaline earth metal. The solvated metal additive within the polar outer-sphere electron transferring solvent may be used to coat a metal particle and / or a metalloid particle as a layer. As the polar outer-sphere electron transferring solvent evaporates, the solvated metal additive is coupled to the metal particle and / or the metalloid particle.

The application discloses a container ship valve body casting device with intelligent temperature control function and relates to the technical field of valve body casting devices. The container ship valve body casting device comprises a support, an electric sling, a moving beam, a pouring bag, a pouring table, a sliding frame and a hot-driven double-trip isolation curtain. The first and second limiters are alternately matched, so that the driving head reciprocates between the initial end and the end of the curved groove, and the cooling device is automatically started and stopped according to the pressure sensor signal, thereby realizing double-trip scraping of the isolation bevel and continuous collection of metal particles. The splashed metal liquid forms an oxide film in the air, the rough surface of the isolation bevel is bitten by the oxide film through surface depression, so that the splashed metal liquid can reliably adhere to the isolation bevel, thereby effectively reducing the risk of continuous splashing and diffusion. Part of the metal liquid adhering to the isolation bevel rolls downward along the bevel under the action of gravity and finally enters the collection groove, thereby realizing effective guidance and centralized collection of the splashed metal liquid.

The utility model discloses a device for classifying waste metal after fine crushing treatment, which comprises a base, a mounting frame and a conveying belt, and further comprises a material uniformizing mechanism and a magnetic separation mechanism which are positioned above the conveying belt, and a vibration material distributing mechanism fixed on the base, and the vibration material distributing mechanism comprises a plurality of material distributing grooves; the conveying belt is fixedly connected to the base through the conveying belt fixing frame, and the vibration distributing mechanism is located below a discharging port of the conveying belt. According to the whole structure of the device, efficient and automatic metal sorting is achieved through multiple screening, grading and stable design, and the sorting precision, stability and working efficiency of equipment are greatly improved; the problems that in the prior art, non-magnetic metal and metal particles with small density difference cannot be effectively separated through a single screening mode, and the screening precision is affected by metal particle accumulation are solved.

The invention discloses a solid electrolyte membrane, a preparation method and a solid-state battery. The solid-state electrolyte membrane comprises a first solid-state electrolyte layer, a second solid-state electrolyte layer and a third solid-state electrolyte layer which are stacked in the thickness direction; wherein the second solid electrolyte layer comprises metal particles, and a plurality of holes formed in the second solid electrolyte layer are filled with the metal particles. The metal particles are introduced into the solid-state electrolyte membrane to induce generation of lithium dendrites, so that the service life characteristic of the solid-state electrolyte membrane is improved.

The application discloses a kind of low pressure jet flow plasma enhanced chemical vapor deposition equipment and its production method, it is related to chemical vapor deposition field, including: plasma generator, cleavage cavity, growth cavity and recovery device connected in sequence, the plasma generator, cleavage cavity, growth cavity and recovery device inside form the channel of sequential communication;The growth cavity is used to transport metal particles inside;The outlet of the growth cavity is connected by transport pipeline and recovery device;The metal particles can pass through the channel between the growth cavity inner cavity and the inside of the transport pipeline under the action of gravity, into the recovery device inside.Adopting the present scheme, metal particle powder can directly pass through plasma to complete in-situ production reaction of solid film on the surface of metal particle, so that in-situ reaction time reaches millisecond order, compared with traditional PECVD equipment, reaction time is greatly shortened, thereby improving production / experiment efficiency.

The invention provides a moving trolley device for semiconductor appearance inspection and an operation method, and belongs to the technical field of semiconductor appearance inspection. Comprising a bottom frame, moving wheels and telescopic sleeves, the moving wheels are arranged at the bottom of the bottom frame, and the tops of the moving wheels are fixedly connected with the telescopic sleeves. By arranging the appearance residue detection module, when debris or metal particles or other sundries exist on the appearance surface of a semiconductor, the debris or metal particles or other sundries on the semiconductor can be directly sucked away by the appearance residue detection module according to the negative pressure suction principle; whether sundries exist on the appearance surface of the semiconductor or not can be judged by detecting the air inflow during air suction, and manual observation with human eyes is not needed in the whole process, so that the possibility of eyestrain caused by long-term observation with the eyes of workers is reduced to a certain extent; and the fatigue and the body discomfort of the worker caused by sitting beside the visual observation instrument for working for a long time are reduced to a certain extent.

A metal-resin composite that has a structure in which a plurality of metal particles are fixed to resin particles and, in the range of pH 3 to pH 10, the maximum value of the zeta potential is at least 5 mV and the minimum value is −5 mV or less. In this metal-resin composite, it is preferable that, in the range of pH 3 to pH 10, the difference between the maximum value and the minimum value of the zeta potential is at least 20 mV; and it is further preferable that the point of zero charge of the zeta potential is in the range of pH 3.5 to pH 9.0. This metal-resin composite can be used in immunoassays and in immunoassay reagents as a labeled substance by making antigens or antibodies adhere to the surface of the metal-resin composite.

The utility model provides a thin oil lubrication structure for a vibrator bearing of a vibrating screen, which comprises a bearing seat, a bearing body and a rotating shaft, and solves the problem that dust or metal particles enter an oil groove of the vibrator bearing and enter the bearing along with the use of lubricating oil in the process of introducing the lubricating oil in the original device, so that the lubricating effect is influenced. The problems that in the prior art, a connecting structure of an oil groove and a filter screen is loose, the filter screen is prone to falling off to be polluted by the external environment, connection is too tight, and the filter screen is not prone to being placed in the oil groove are solved. The magnetic suction pipe is conveniently installed in the supporting base, meanwhile, the filter pipe is fixed in the supporting base through the pressing strip, the filter pipe is installed in the supporting base, the filter pipe can filter lubricating oil, and the magnetic suction pipe is prevented from being polluted by the outside.

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.