197 results about "Heat resistance" patented technology

The present application relates to the field of packaging substrate, particularly relates to a fine line packaging substrate and a manufacturing method thereof. The packaging substrate comprises a core board, the core board comprises a first surface and a second surface, the first surface of the core board is provided with a first circuit layer, the second surface of the core board is provided with a second circuit layer, the core board comprises a first metal column, the first metal column connects the first circuit layer and the second circuit layer, and the first metal column comprises a filler inside. The first surface of the first metal column protrudes from the first surface of the core board by a distance greater than the thickness of the first circuit layer; the second surface of the first metal column protrudes from the second surface of the core board by a distance greater than the thickness of the second circuit layer. Fine lines can be formed on the surface of the core board, the circuit layer has high precision, the thickness of the circuit layer can be accurately controlled, the side etching amount of the circuit is extremely small, and the yield of the substrate is good. The bonding force between the circuit layer and the core board is strong, which can effectively improve the heat resistance and mechanical stress of the whole substrate.

To provide a heat dissipation sheet that has low hardness and excellent heat resistance. [Solution] A heat dissipation sheet comprising polyurethane, a thermally conductive filler, and a carboxylic acid ester, wherein the content of polyurethane relative to the total mass of the heat dissipation sheet is greater than the content of carboxylic acid ester relative to the total mass of the heat dissipation sheet, and the content of thermally conductive filler is greater than 50% by volume relative to the total volume of the heat dissipation sheet.

The application discloses an improved semi-additive process based on customized ultra-thin copper foil flexible copper-clad plate and a fine circuit board, and belongs to the technical field of flexible printed circuit boards. The process adopts a customized ultra-thin copper foil FCCL substrate, and the circuit is prepared through substrate selection pretreatment, pattern size pre-compensation, laser drilling and black shadow process hole metallization, pattern transfer and selective electroplating thickening, film stripping and flash etching forming. The micro-etching amount is cooperatively controlled throughout the process, and combined with optimized plasma cleaning and high hole filling electroplating, the fine circuit production with a minimum line width and line spacing of 45 microns or less can be stably realized, and the highest fine circuit production can reach 25 / 25 microns. The application solves the problems of traditional process, such as large side etching, low precision, poor yield and the like, and the circuit board prepared has the advantages of excellent size stability, strong heat resistance and uniform micro-hole filling, is suitable for high-density interconnection and high-end consumer electronic demand, and has significant advantages of precision, yield and reliability compared with existing processes.

This invention relates to the field of composite current collector base film materials, and discloses a heat-resistant and aging-resistant composite current collector base film and its preparation process. It is prepared by melt extrusion and stretching of the following raw materials in parts by weight: 100 parts PET resin, 12-25 parts multi-component composite reinforcing filler, and 0.5-3 parts lubricant. The multi-component composite reinforcing filler is prepared through the following steps: S1, halloysite nanotubes are composited with aminated mesoporous alumina, modified, and then loaded with an antioxidant to obtain functionalized halloysite nanotube-alumina composite particles; S2, magnesium oxide is deposited on graphene oxide, and modified to obtain a modified graphene oxide-magnesium oxide composite; S3, after blending, polymer grafting is performed to obtain the multi-component composite reinforcing filler. This invention, through the multi-component composite reinforcing filler in PET resin, can comprehensively improve the heat resistance, aging resistance, and bonding strength between the base film and the metal layer of the PET resin-based composite current collector base film.

This invention relates to the field of aluminum alloy technology, specifically to a manufacturing process for a heat-resistant aluminum alloy. The aluminum alloy comprises the following raw materials: copper, silicon, magnesium, zinc, manganese, nickel, titanium, lithium, aluminum, and a heat-resistant filler. Alumina-coated porous silicon carbide nanosheets are prepared as the heat-resistant filler and added during the aluminum alloy manufacturing process. The porous structure of the silicon carbide nanosheets allows for a snap-fit ​​bond with the alumina film, ensuring good stability of the alumina film and preventing easy detachment. The good compatibility between the alumina film and the aluminum alloy matrix ensures a tight bond between the prepared heat-resistant filler and the aluminum alloy matrix, resulting in uniform dispersion within the matrix. The unique sheet-like structure of the heat-resistant filler forms a uniform heat-insulating layer within the aluminum alloy matrix, thus giving the prepared aluminum alloy excellent heat resistance.

The application discloses a kind of for tantalum niobium tailings in tin metal recovery's synergistic treatment system, specifically related to metallurgical solid waste resource utilization technical field, acoustic-electricity perception pre-agglomeration module exports pre-agglomeration probability index according to pre-agglomeration threshold value;Heat resistance chromatography module exports the temperature field and fluidized void fraction distribution of suspected agglomeration area;Inhibiting ingredient self-adapting module calculates inhibitor addition rate according to distribution;Wind material decoupling adjustment module exports decoupled wind speed and feed rate set value according to addition rate and bed pressure drop;Chain negative feedback blocking module detects pressure drop deviation to generate feedback correction, superimposed to wind speed set value and reversely adjust feed rate set value, while used to update pre-agglomeration threshold value;The application realizes the online identification of agglomeration precursor, accurate danger area precision inhibiting and the closed-loop cooperation of wind material decoupling, inhibits the nonlinear deterioration of coking loss flow, makes tin recovery rate keep stable when tailings fluctuation, and reduces inhibitor consumption and manual intervention.

The present application relates to the technical field of overhead conductor material for power transmission lines, and provides a simple aluminum-based energy-saving aluminum alloy monofilament, a preparation method and a power transmission conductor. The material takes industrial pure aluminum as a matrix, a small amount of Zr, B, Si elements and TiB2 particles are added, and a melt refining, ultrasonic purification, homogenization treatment, rolling and drawing and multi-stage aging process are combined to realize the synergistic regulation of the microstructure and precipitated phase of the aluminum alloy, reduce the content of impurity elements, and improve the electrical conductivity, strength and heat resistance. The prepared aluminum alloy monofilament has an electrical conductivity of 63.5%IACS at 20 DEG C, a tensile strength of about 150 MPa, and a maximum allowable continuous operating temperature of 150 DEG C, and has high electrical conductivity, high heat resistance and good mechanical properties. The technology reduces the alloying degree and cost through material simple design and multi-field synergistic purification process, is suitable for high-capacity and low-loss power transmission line conductor manufacturing, and has important significance for improving the transmission efficiency and reliability of the power grid.

The application provides a flame-retardant composite shielding material and a preparation method and application thereof, and belongs to the technical field of nuclear radiation shielding materials. The flame-retardant composite shielding material comprises the following components in parts by mass: 10-20 parts of high-density polyethylene, 68-81 parts of lead, 0.5-4 parts of boron carbide and 9-20 parts of a flame retardant. By adopting high-density polyethylene, lead, boron carbide and a flame retardant and controlling the mass fraction of each component, the heat resistance, flame retardance and shielding performance of the flame-retardant composite shielding material can be improved.

The present application relates to a communication device. A communication device having a common mode noise filter and improved heat resistance is provided. A communication device that performs data transmission based on a differential transmission method includes a first common mode noise filter including a first coil, a second coil, and a third coil; a communication control circuit that transmits and receives a signal through a first line connected to the first coil and a second line connected to the second coil; and at least one resistor disposed outside the first common mode noise filter, a first end of the resistor being connected to the third coil, and a second end of the resistor being grounded.

This invention discloses an epitaxial structure and its fabrication method. The epitaxial structure includes at least two stacked light-emitting units; each light-emitting unit includes a stacked N-type conductive layer, a light-emitting layer, and a P-type conductive layer; the light-emitting layer includes at least one layer unit structure; each layer unit structure includes at least two sequentially stacked quantum wells, each quantum well including a well layer and a barrier layer, and a first AlGaN layer and a second AlGaN layer disposed on both sides of the well layer, with the second AlGaN layer disposed between the well layer and the barrier layer. This improves the heat resistance of the light-emitting layer, reduces the impact of the subsequent growth process on the initially grown light-emitting units, and improves the quality of the epitaxial structure. When forming a full-color Micro-LED chip, the fabrication process can be simplified while ensuring the quality of the full-color Micro-LED chip, thus reducing the fabrication cost of the full-color Micro-LED chip.

This invention discloses an automated processing line for bending and forming aluminum alloy crash beams, comprising a feeding device and a bending and forming device. A feeding conveyor belt transports hollow aluminum alloy profiles through an open opening to a profile support in a heating chamber. Each set of heating resistance wires, driven by a corresponding resistance wire drive cylinder, is inserted into the hollow aluminum alloy profile to heat it. The transfer assembly transports the heated hollow aluminum alloy profile to the bending and forming device. The bending and forming device bends the hollow aluminum alloy profile into an aluminum alloy crash beam. The feeding device not only automatically feeds the profile to the bending and forming device but also efficiently preheats the hollow aluminum alloy profile, thereby improving its plasticity, significantly reducing the bending difficulty of the profile, improving processing accuracy, and ultimately greatly increasing the yield rate of the aluminum alloy crash beams.

This invention discloses a PP-based battery cell lead terminal material containing modified insulating and thermally conductive filler and its preparation method, relating to the field of polymer composite materials technology. The material comprises polypropylene, modified thermally conductive and insulating filler, thermal stabilizer, plasticizer, antioxidant, and lubricant. The modified thermally conductive and insulating filler consists of a point-sheet-wire synergistic thermally conductive framework composed of spherical α-alumina, hydroxylated hexagonal boron nitride nanosheets, and silicon nitride whiskers, sequentially forming a polydopamine anchoring layer, a magnesium-aluminum layered double hydroxide insulating locking layer, a polyphosphazene-siloxane-POSS composite shell, and a maleic anhydride-grafted polypropylene wax compatible coating layer. The resulting material possesses thermal conductivity, insulation, flame retardancy, heat resistance, mechanical stability, and processing performance, making it suitable for battery cell lead terminals and their surrounding insulating and thermally conductive structural components.

The objective is to provide a stretched film that has excellent water vapor barrier properties and heat resistance, as well as excellent transparency. [Solution] The stretched film has a density of 0.950 g / cm³. 3 The main component is polyethylene, and the water vapor transmission rate per 100 μm is 1.0 g / m². 2 The film has a minimum of 10 days, a haze of 20% or less, and a thermal shrinkage rate of 10% or less when heated at 100°C for 10 minutes in the MD (Metal Dynamics) of the film.

This invention discloses a simulated oxidation detection device and method for lead-acid battery casings, including a heating furnace, a beaker placed on the furnace, and an adjusting bracket placed on the side of the furnace. One end of the adjusting bracket extends above the beaker, and a temperature measuring element and a sample are connected to the adjusting bracket, with the temperature measuring element and the sample immersed in cooling water. During detection, the heating furnace is turned on, and cooling water from a workshop water bath is placed in the beaker, with the internal water temperature heated to a stable 40℃±1℃. Two prepared samples are taken: sample A is wrapped with a PE protective film, and sample B is without a film. They are connected to the bracket, with one end immersed in water, and continuously bathed for 24 hours. Finally, the two samples are compared with a control sample. Compared with existing technologies, this invention has a scientifically sound structure, is simple and convenient to operate, and can screen out batches of ABS granules with poor acid resistance and heat resistance at the material stage, preventing them from flowing into subsequent injection molding and battery assembly processes, thus eliminating the phenomenon of discoloration and mottling of the casing from the source.

This invention provides a coating slurry, a separator, a method for preparing the separator, and a battery. The separator includes a substrate and a coating layer disposed on at least one surface of the substrate. By weight, the coating layer includes 1.5–11.5 parts of a first binder, 1.5–25 parts of a second binder, and 50–95 parts of a ceramic material. The particle size of the second binder is 2.5–7.5 μm, and the ratio of the average particle size of the ceramic material to the average particle size of the second binder is 0.12–0.16. In this invention, the separator exhibits excellent heat resistance and adhesion; it also possesses good air permeability and ion conductivity.

This invention discloses a heat-resistant and flame-retardant multifunctional power cable and its manufacturing method. The power cable includes a cable core and a cable sheath wrapping the cable core, with ceramicized silicone foam filling the space between the cable core and the cable sheath. The cable sheath includes an insulating substrate layer, a flame-retardant heat dissipation layer disposed on its inner side, and a wear-resistant reinforcement layer disposed on its outer side. The inner and outer surfaces of the insulating substrate layer are respectively provided with multiple first connecting blocks and multiple second connecting blocks. Correspondingly, the inner surfaces of the flame-retardant heat dissipation layer and the wear-resistant reinforcement layer are respectively provided with first connecting slots and second connecting slots that fit into them. The multiple first connecting blocks and multiple second connecting blocks are staggered circumferentially along the insulating substrate layer. Compared with the prior art, the power cable provided by this invention, through innovative structural and material design, synergistically achieves multiple functions such as heat resistance and flame retardancy, high strength, wear resistance, bending resistance, and long lifespan.

This invention discloses a low-smoke halogen-free flame-retardant power cable, belonging to the technical field of flame-retardant power cables. The cable comprises a core, a wrapping layer, and a sheath layer. The sheath layer is made of the following raw materials in parts by weight: 70-80 parts thermoplastic polyurethane elastomer, 20-30 parts maleic anhydride-grafted POE, 15-20 parts inorganic flame retardant, 8-16 parts halogen-free flame retardant, 1-2 parts antioxidant, 0.5-1 part ultraviolet absorber, and 2-3 parts lubricant. The halogen-free flame retardant molecules contain phosphorus, silicon, nitrogen, Schiff bases, and oxazine ring structures, achieving a dual flame-retardant mechanism in both the condensed and gaseous phases through synergistic effects, significantly improving flame-retardant performance and inhibiting dripping. The cable of this invention has the advantages of low smoke, halogen-free, highly efficient flame retardancy, and good heat resistance, making it particularly suitable for power transmission scenarios with high safety and durability requirements, such as charging piles.

The application discloses a heat exchange structure, a heat exchange device and a thermosyphon radiator, and relates to the technical field of radiators. The heat exchange structure comprises a heat exchange cavity used for containing a heat exchange working medium. A plurality of tubular parts are arranged on a heated cavity wall of the heat exchange cavity close to a heat source. The tubular parts extend towards a side away from the heated cavity wall. The extension end of the tubular part is closed. The heated cavity wall is provided with an opening corresponding to the tubular part and communicating with the tubular cavity of the tubular part. The tubular part is provided with a fin. The plate surface of the fin is arranged along the extension direction of the tubular part. The application can increase the evaporation area of the heat exchange structure, so that the bubbles generated during evaporation and boiling are not additionally blocked by the fin, the heat transfer effect of the bubbles is improved, the heat resistance of the radiator is effectively avoided, the boiling efficiency of the working medium at different depths is improved, and the heat exchange efficiency of the heat exchanger is improved.

This application provides a method and system for early warning of overheating hazards in electrical equipment based on UAV multispectral imaging, belonging to the field of power equipment condition monitoring technology. This application first acquires ultraviolet photon and spatial point cloud data collected by a UAV. A three-dimensional model is constructed based on the point cloud, and electric field distribution information is obtained through finite element analysis. Combining photon data and electric field information, the discharge charge quantity and distribution are obtained through spatial inversion correction. Then, the discharge current density is calculated using an energy dissipation model, and the discharge heat power loss density is determined by combining the local electric field. Finally, the steady-state heat conduction equation is solved based on heat conduction parameters to calculate the temperature field distribution under thermal equilibrium. When the steady-state temperature exceeds the heat resistance threshold, an early warning message is generated. This application achieves early and accurate prediction and location of hidden overheating faults in electrical equipment caused by insulation degradation.

This utility model relates to the field of power cables, and more particularly to a copper-core cross-linked polyethylene insulated steel wire armored power cable for use in the petrochemical industry. It features a conductor made of high-purity oxygen-free copper wire of specific specifications, twisted in the same right-hand direction. The purity of the copper wire, the diameter of each wire, the number of strands, and the twisting pitch all meet specific requirements to ensure good conductivity and flexibility. The cross-linked polyethylene insulation layer tightly covers the conductor, with insulation thickness depending on the voltage and a moderate degree of cross-linking, providing excellent insulation and heat resistance. The steel wire armor layer is woven or wound into a double-layer structure using high-strength galvanized steel wire conforming to Q195 standards, with a coverage rate of not less than 80%, effectively enhancing mechanical protection. The inner sheath is made of polyvinyl chloride or polyethylene, and the outer sheath is made of oil-resistant, corrosion-resistant, and weather-resistant chlorosulfonated polyethylene or chlorinated polyethylene. Both layers have appropriate thicknesses; the inner sheath buffers and protects the insulation layer, while the outer sheath resists harsh environmental corrosion.

The application relates to a high-heat-resistance red light-emitting material and a preparation method and application thereof, and the chemical general formula of the material is CaLaTiTaO7: x Eu 3+ , and 0 < x <= 0.8; the material is synthesized by a high-temperature solid-phase method, CaCO3, La2O3, TiO2, Ta2O5 and Eu2O3 are weighed according to the stoichiometric ratio, are ground and are calcined, the sintered product is cooled and is finely ground to obtain the material; the CaLaTiTaO7 material is first selected as a matrix to synthesize a CaLaTiTaO7: x Eu 3+ series red fluorescent powder, under 393 nm near-ultraviolet light excitation, the material presents characteristic red light emission of Eu 3+ ions at 613 nm. The CLTT:0.6Eu 3+ / PDMS flexible composite thin film constructed by the material can maintain structural integrity and light emission stability in an acid-base environment, and an LED device prepared by using the material has good white light emission characteristics.

The utility model provides an integral forming inductance of impact resistance and heat resistance, include: split type magnetic core structure, sectional type winding subassembly, composite insulating layer, elastic buffer layer, metal alloy shell, heat conducting medium filling layer, positioning clamping groove, reinforcing flange, high temperature resistance pin, sealing colloid, stress dispersion groove, temperature response coating, split type magnetic core structure is by upper magnetic core body a, lower magnetic core body b and magnetic gap adjusting component c is composed, the upper magnetic core body a and lower magnetic core body b are engaged through mortise and tenon structure, magnetic gap adjusting component c is detachable ceramic sheet, elastic buffer layer is by silicon base elastomer and carbon fibre braided layer alternative superposition constitutes. The utility model discloses three big core technologies of split type magnetic core dynamic regulation, three -level buffer energy absorption, gradient heat conduction insulation, solves the pain point such as temperature rise runaway, mechanical failure, parameter solidification of traditional inductance under extreme environment, especially applicable to the field of harsh reliability requirement such as aerospace power supply, high orbit satellite load, new energy automobile electric drive system.

This utility model discloses a hot-fill bottle type capacity adjustment and negative pressure rapid venting design structure, relating to the field of blow molding technology. The structure includes a mold cavity with a groove on its inner wall; a negative pressure block is detachably installed within the groove; a gap for rapid venting is formed between the outer periphery of the negative pressure block and the side wall of the groove; and a replaceable capacity adjustment shim is provided between the bottom of the groove and the negative pressure block. During blow molding, air between the preform and the mold can be quickly expelled through the venting gap, ensuring the bottle material completely adheres to the mold, achieving uniform crystallization and improving the product's heat resistance. Simultaneously, by replacing capacity adjustment shims of different thicknesses, the axial position of the negative pressure block can be conveniently and precisely adjusted, thereby fine-tuning the final bottle capacity.

This utility model discloses a high-temperature resistant aluminum core conductor, including a protective structure. An outer sheath is installed inside the protective structure, and a high-temperature resistant structure is installed inside the outer sheath. The high-temperature resistant structure includes an insulating layer inside the outer sheath, an anti-tensile rope inside the insulating layer, a main body installed on one side of the anti-tensile rope, a heat-resistant aluminum alloy round wire installed on the outside of the main body, a steel core installed in the middle of the main body, and an annealed aluminum strip on the outer wall of the steel core. When the heat-resistant aluminum alloy round wire is wrapped around the main body, the heat-resistant aluminum alloy round wire has excellent heat resistance, forming a heat-resistant protective layer that effectively blocks the direct impact of external high temperatures on the aluminum main body. This helps maintain the stability and reliability of the main body in high-temperature environments, extending its service life. The anti-tensile rope outside the main body can absorb and disperse stress, preventing conductor damage or breakage.

An insulation member may include a silica insulation composite having excellent heat resistance. The silica insulation composite may include a substrate and a silica network structure, the silica network structure including a plurality of silica particles and one or more pores. A film may wrap the silica insulation composite. Even when sealed with a film, the insulation member may have minimized degradation in heat blocking performance.

The present disclosure relates to the technical field of semiconductor testing, and provides an in-situ measurement device of wafer processing equipment, a test system and a heat insulation box. The device comprises a body, a plurality of measurement elements, an antenna component and a measurement circuit assembly. The measurement circuit assembly is arranged in the heat insulation box, and the heat insulation box is fixedly arranged on the body. The heat insulation box comprises a shell, a plurality of heat insulation supports are arranged in the vacuum chamber to abut the inner walls of the shell on multiple sides, so as to define a heat insulation space in the vacuum chamber for accommodating the circuit component. A heat insulation shielding layer is arranged between the heat insulation supports and the heat insulation space. The heat insulation supports are supported on the inner walls of the shell and / or the heat insulation shielding layer through the protruding support portions on the surfaces. The heat insulation space is filled with a heat insulation filler. The signal processing component in the measurement circuit assembly is electrically connected with each measurement element and the antenna component, so as to obtain a measurement result and send it externally. Thus, the high-temperature heat resistance protection of the measurement circuit is realized, and a reliable and accurate high-temperature wafer in-situ temperature measurement device is realized.

This invention provides a method for preparing a mica insulating sheet for lithium-ion batteries without an aluminum metal layer, relating to the technical field of electrical insulation materials and insulating component molding / manufacturing processes. The method includes: S1. providing a sheet-like mica substrate and preparing an organosilicon resin bonding system for impregnation; simultaneously preparing a ceramic barrier slurry for surface layering, wherein the ceramic barrier slurry includes silica sol, zirconium oxide sol, and titanium dioxide. This method for preparing a mica insulating sheet for lithium-ion batteries without an aluminum metal layer utilizes a ceramic barrier system constructed from Si sol + Zr sol + titanium dioxide, avoiding the existing technology's reliance on an aluminum reflective layer in the process path. This allows the lithium-ion battery insulating material to meet heat resistance and insulation requirements while achieving aluminum-free insulation, improving its application compatibility between cells and between cells and the casing.

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.