20results about How to "Improve coating uniformity" patented technology

The application relates to the field of semiconductor process equipment, in particular to a device for large-capacity liquid medicine storage of semiconductor equipment and a liquid medicine supply system. The device comprises a liquid storage tank provided with a liquid storage cavity, the upper portion of the liquid storage cavity is provided with a cleaning cavity in fluid communication with the liquid storage cavity; the internal volume of the cleaning cavity is smaller than that of the liquid storage cavity; a liquid inlet pipe is arranged to introduce liquid medicine into the liquid storage cavity of the liquid storage tank from the outside; a liquid outlet pipe is arranged at the bottom of the liquid storage cavity and connects the liquid storage cavity of the liquid storage tank to a liquid source; a waste pipe is arranged at the top of the cleaning cavity to discharge the liquid medicine bubbles in the cleaning cavity; and a vent pipe is arranged to connect the cleaning cavity of the liquid storage tank with the outside to keep the air pressure in the cleaning cavity of the liquid storage tank consistent with the ambient air pressure. The application improves the separation efficiency of large-capacity liquid medicine and gas, reduces the probability of generating bubbles in the liquid medicine, improves the uniformity of wafer surface coating, and can meet the high-integration equipment layout.

The invention relates to a silicon-based negative electrode material based on metal oxide coating and preparation and application thereof, and a preparation method of the material comprises the following steps: S1, putting a silicon-based material into a solvent for ultrasonic dispersion to obtain a uniform suspension; s2, adding a metal oxide precursor into the suspension obtained in S1, and carrying out hydrolysis or condensation reaction to generate a continuous metal oxide coating layer on the surface of the silicon-based material in situ; and S3, after the reaction is finished, centrifugally separating, washing and drying the obtained product to obtain the silicon-based negative electrode material, namely a target product. Compared with the prior art, the method provided by the invention is simple in process, low in cost and good in repeatability, and the obtained coated silicon material has excellent structural stability and electrochemical performance and has a wide application prospect in high-energy-density lithium ion batteries and all-solid-state batteries.

The invention discloses plasma vacuum coating equipment for particle coating treatment, which comprises a vacuum cavity, a process gas transmission and distribution system, a particle bearing and fluidizing device, a magnetron sputtering cathode and an electromagnetic coil, a separator is arranged in the vacuum cavity, and the separator defines a vacuum coating area in the vacuum cavity; the particle bearing and fluidizing device comprises a bearing disc with a porous structure, and the bearing disc is communicated with the process gas transmission and distribution system; the magnetron sputtering cathode is arranged above the vacuum coating area; and the electromagnetic coil is arranged outside the isolation piece in a surrounding mode in the circumferential direction. According to the invention, the process gas necessary for coating can be utilized to raise the particles to be coated and enable the particles to suspend in the vacuum coating area, and the process gas continuously blows and stirs the particles in the sputter coating process, so that the coating uniformity of the particles can be improved.

The utility model discloses a vacuum sputtering device for efficiently and uniformly depositing a copper film, which relates to the technical field of film plating machines and comprises a master console, an electronic control device arranged in the master console, a film plating box arranged in the middle of the top surface of the master console, a box door hinged to the front end surface of the film plating box, a film plating mechanism arranged in the film plating box, and a connecting structure arranged between the film plating box and the box door. The coating mechanism comprises an adjusting assembly, an anode assembly, a cathode assembly and a magnetic control assembly; according to the utility model, through the matching of the adjusting assembly and the cathode assembly, the distance between the electrodes can be freely adjusted, so that the coating uniformity is ensured, the coating uniformity is improved, and the uniform coating capability is realized; through cooperation of the cathode assembly and the magnetic control assembly, the sputtering direction of the plasma can be restrained to the maximum degree, so that the coating efficiency is improved, and the efficient coating capacity is achieved; and finally, the problem of low coating quality caused by improper electrode distance or serious plasma dissipation during coating of the existing equipment is solved.

This invention discloses a multi-level carbon-coated ternary composite material and its preparation method, comprising the following steps: S1: Nanoscale wet grinding of single-crystal NCM and expanded graphite, allowing NCM to be inserted between the expanded graphite layers, followed by drying to obtain mixture 1; S2: Mixing mixture 1 from S1 with medium-temperature pitch to obtain mixture 2; S3: Low-temperature sintering of mixture 2 obtained in S2, followed by crushing to obtain the multi-level carbon-coated ternary composite material. This invention embeds single-crystal NCM into the expanded graphite layers through grinding, improving the electronic conductivity of NCM and enhancing rate performance. The expanded graphite adapts to the volume expansion of single-crystal NCM during charge and discharge, maintaining close contact between materials, thereby improving cycle life. The secondary coating of the material with low-softening-point medium-temperature pitch further reduces the contact area between single-crystal NCM and the electrolyte, improving cycle stability. The medium-temperature pitch can complete carbonization at a lower temperature, avoiding the collapse of the NCM structure during high-temperature carbonization.

The utility model belongs to the technical field of cable production, and discloses a high-voltage cable graphite coating device which comprises a base. Two charging barrel units which are coaxially placed are fixed on the base, the charging barrel units are horizontally placed, and cavities for storing graphite slurry are formed in the charging barrel units; vertically upward grouting pipes are fixed to the tops of the charging barrel units, storage barrels for storing graphite slurry are fixed to the upper ends of the two grouting pipes, cavities in the charging barrel units are in through connection with the interiors of the storage barrels through the grouting pipes, and stirring mechanisms for stirring the graphite slurry are arranged in the storage barrels; through the arrangement of the two grouting pipes, graphite slurry in the material storage barrel continuously flows into the two charging barrel units, so that the graphite slurry in the two charging barrel units is always in a full state, the requirement of frequent shutdown for slurry supplementation is reduced, meanwhile, the phenomenon that the peripheral wall of the upper end of a cable is missed to be coated due to insufficient slurry is effectively avoided, and the service life of the cable is prolonged. And the uniformity and integrity of the graphite coating are ensured.

This invention relates to the use of a PET double-sided copper foil composite material in the fabrication of 224Gbps or 448Gbps high-speed communication cables. The PET double-sided copper foil composite material comprises a PET base film and a first copper foil layer and a second copper foil layer respectively disposed on both sides of the PET base film. This type of composite material was originally used as a conductive current collector in batteries; this invention adapts it for the field of high-speed communication cables, allowing it to serve as a covering layer, shielding layer, conductive connection layer, or grounding connection layer in 224G or 448G high-speed communication cables. A continuous shielding and grounding path is formed through overlaps, exposed copper foil connection areas, drain lines, grounding conductors, connection terminals, or shielding shells to improve electromagnetic shielding continuity, reduce crosstalk and external electromagnetic interference, and improve impedance stability, insertion loss stability, and shielding reliability after bending. This application differs from its use as a carrier of active materials for battery electrodes and as a current collector for battery charging and discharging; it addresses the issues of shielding, covering, conductive connection, and signal integrity in high-speed signal transmission environments.

The utility model discloses a surface anticorrosive coating coating device for processing an iron outfitting piece, which relates to the technical field of iron outfitting piece processing equipment and comprises a dip dyeing box, an auxiliary box, a placing box and a connecting hole. According to the dip dyeing device, the auxiliary box and the placing box are moved upwards, the iron outfitting piece to be coated is placed in the placing box, then the auxiliary box and the placing box are adjusted to move downwards, the auxiliary box and the placing box drive the iron outfitting piece to enter anti-corrosion paint in the dip dyeing box, meanwhile, the placing box rotates, and the iron outfitting piece is placed in the dip dyeing box. The steel outfitting piece is in rotary contact with the anticorrosive paint, so that the coating uniformity of the anticorrosive paint on the surface of the steel outfitting piece can be effectively improved; after anti-corrosion coating is completed, the adjustable auxiliary box and the placement box move upwards, the placement box moves out of the anti-corrosion coating while rotating, the throwing effect on the redundant anti-corrosion coating is better, the anti-corrosion coating can be effectively saved, and the production cost is reduced; and the placing box can drive the iron outfitting piece to move to the top of the dip dyeing box, so that the iron outfitting piece in the placing box is more convenient to take.

The application discloses a battery piece coating device. The device comprises a coating workbench, a hollow area matched with the size of the battery piece is arranged on the coating workbench; a battery piece bearing platform matched with the size of the hollow area and capable of being embedded into the hollow area is used for bearing the battery piece; a coating assembly is used for performing the operation of coating the photosensitive glue on the battery piece; a driving assembly is connected with the battery piece bearing platform and used for moving the battery piece bearing platform to a preset coating position of the hollow area to bear the battery piece to be coated and moving the battery piece bearing platform to a discharging position of the battery piece after the coating of the battery piece is completed. The battery piece coating device provided by the application does not need to perform vacuum adsorption on the battery piece during coating, thereby avoiding the problem that the thickness of the photosensitive glue coated on the adsorption position and the non-adsorption position is different due to the vacuum adsorption of the battery piece, and the coating uniformity of the battery piece is improved.

This utility model discloses a circular multi-chamber continuous coating device. The vacuum chamber contains circularly distributed workpiece entry / exit stations and multiple coating stations. A workpiece transmission mechanism connects the workpiece entry / exit stations to each coating station. Each coating station is equipped with a dual-axis moving magnetron sputtering target, which includes a target material, a magnetic field assembly, a translation mechanism, and a rotation mechanism. The target material is positioned above the coating station, and the magnetic field assembly is positioned above the target material. The magnetic field assembly is equipped with the translation and rotation mechanisms. This circular multi-chamber continuous coating device, by setting workpiece entry / exit stations and multiple coating stations within a circular vacuum chamber, can achieve multi-layer coating of workpieces. Simultaneously, by setting a target material with both rotating and translating magnetic fields at each coating station, it changes the traditional coating process where the magnetic field is stationary or can only move in one direction. This effectively improves the uniformity of workpiece coating while reducing target material consumption and avoiding significant waste of target material.

The utility model discloses photovoltaic module pressure type coating equipment, which relates to the technical field of photovoltaic panel coating, and comprises X-axis linear modules, Y-axis linear modules, Z-axis linear modules, pressure sensors, a coating roller and an injection pump, the two X-axis linear modules are arranged in parallel at intervals, two ends of a Y-axis guide rail are fixedly connected with two X-axis guide rail sliding blocks respectively, and the Z-axis linear modules are fixedly connected with the Z-axis guide rail sliding blocks respectively. The Z-axis guide rail is fixed on the Y-axis sliding block, the Z-axis sliding block is fixedly provided with the mounting bracket, the coating roller is rotationally connected to the coating bracket, the axis of the coating roller is parallel to the XY plane, the upper end of the coating bracket is connected with the mounting bracket through the pressure sensor, the injection pump is mounted on the mounting bracket, the inlet end of the injection pump is connected with the feeding container, and the outlet end of the injection pump is connected with the distributing pipe. The material distribution pipe is arranged above the coating roller and used for evenly distributing materials to the coating roller. According to the utility model, the coating uniformity can be improved, the power generation efficiency and the service life of the photovoltaic module can be ensured, the labor cost can be reduced, and the coating efficiency can be improved.

The application discloses a kind of lithium salt / organic phosphorus compound double-shell coated graphite materials and preparation method.It presents core-shell structure, the core of composite material is artificial graphite, shell is inorganic lithium salt layer and organic phosphorus compound layer in turn from inside to outside.Lithium salt is deposited on the surface of artificial graphite by electrochemical deposition after adding oxidized artificial graphite into inorganic lithium salt, filtration, carbonization, and inorganic lithium salt coated artificial graphite material is obtained;After adding into organic phosphorus salt compound, it is uniformly dispersed, spray drying, and lithium salt / organic phosphorus compound double-shell coated artificial graphite composite material is obtained.The composite material uses inorganic lithium salt coating to reduce material surface defects, can prevent solvent co-embedding, improve the first efficiency of material, prolong cycle life;And outer layer is coated with organic phosphorus compound, when battery appears thermal runaway, impedance increases, prevents thermal runaway, and improves safety performance.

The utility model belongs to fruit stalk mildewproof technical field provides fruit stalk mildewproof coating drying integration device, including support frame, the inner wall fixed connection of support frame has the coating box, the inner wall fixed connection of coating box has water level sensor, still includes: coating mechanism, coating mechanism includes fixedly connected on the motor of support frame side wall, the output fixed connection of motor has the conveying roller, the outer wall of conveying roller is equipped with the conveyer belt, and the outer wall of conveyer belt is equipped with the mounting hole. The utility model discloses when the coating and drying treatment of fruit stalk are all completed, and the carrying plate continues to run to the discharge station with the conveyer belt. At this moment, the conveyer belt drives the U-shaped slide rod and the carrying plate to overturn, and in the carrying plate overturning process, the fruits and vegetables are separated from the placing notch due to the action of gravity, and the automatic unloading operation is completed, which not only effectively avoids manual intervention, but also improves the automation level of the equipment.

This disclosure provides a silicon-carbon anode sheet, its preparation method, and a soft-pack lithium battery. The preparation method of the silicon-carbon anode sheet involves: dissolving water-soluble conductive polyaniline in an organic solvent, mixing it with CMC adhesive, and then mixing it with silicon-carbon slurry and a multifunctional organophosphonic acid crosslinking agent (mixing temperature: 15℃-25℃) to obtain an anode slurry; coating the anode slurry onto a negative current collector to obtain a silicon-carbon anode sheet semi-finished product; and sequentially subjecting the silicon-carbon anode sheet semi-finished product to pre-baking (90℃-120℃) and vacuum drying (70℃-90℃, time: 2h-5h) to obtain the silicon-carbon anode sheet. This method, by adding multifunctional organophosphonic acid crosslinking agents and water-soluble conductive polyaniline, facilitates the formation of a three-dimensional conductive suppression network with high conductivity, uniform and continuous conductivity, strong toughness and strong self-healing ability. This enhances the constraint on the negative electrode slurry, reduces the volume expansion rate to <15%, inhibits silicon-carbon cracking, and improves the self-healing ability of the three-dimensional conductive suppression network, thus broadening the application of high-capacity silicon-carbon negative electrode sheets in soft-pack lithium batteries.

The invention provides equipment for surface treatment of electronic glass fibers and a treatment process. The equipment comprises a coating roller, the surface of the coating roller is provided with concave-convex structures which are distributed in a regular array mode, at least one dimension of each concave-convex structure is in the nanometer dimension to the micrometer dimension, and the concave-convex structures are configured to improve the spreading uniformity of an impregnating compound on the surface of the fiber when the electronic glass fiber is coated by the coating roller. According to the equipment and the process, the surface treatment quality and the production efficiency of the electronic glass fibers are improved, and the production cost is reduced.

A kind of hollow toughened glass coating equipment, realize glass double side coating at the same time, avoid coating layer to be destroyed in the process of transfer, improve coating uniformity. Between left roller group and right roller group, there is smearing mechanism, smearing mechanism is connected with linear drive mechanism installed below middle roller group, middle roller group and left roller group and middle roller group and left roller group are equipped with two suction cup fixing assemblies, smearing mechanism includes upper and lower spaced upper paint box and lower paint box, one upper mounting plate is fixed on the both sides of upper paint box, upper drive mechanism is arranged on one end of upper paint roller and upper feed roller, one lower mounting plate is fixed on the both sides of lower paint box. Realize double side synchronous coating, improve production efficiency, avoid coating layer to be destroyed, improve coating quality, by setting middle roller group that can be up and down and suction cup fixing assembly around, glass is lifted by suction cup fixing assembly after coating is completed, can realize repeated coating.

This invention proposes an electrode, a battery, and a mechanical device. The electrode includes a current collector, with an active material layer on at least one side. Strip-shaped conductive fibers are distributed on the surface of at least one side of the current collector, and these fibers are distributed within the active material layer. This invention utilizes the distributed strip-shaped conductive fibers within the active material layer, where the fibers are tightly bonded to the current collector, forming a three-dimensional conductive network. The active material and the conductive network form a continuous electron channel, achieving efficient electron transfer, improving the battery's charge / discharge rate, and reducing heat generation.

The utility model discloses a kind of glass substrate surface treatment liquid medicine automatic coating devices, relate to glass processing technical field.The utility model includes cleaning mechanism, the rear side of liquid tank left wall is fixed with motor, motor's power output shaft is fixed with rotating roller, rotating roller's outside is fixed with bristle, the front of rotating roller is equipped with with the fixed gas outlet box of liquid tank;The upper portion of conveyor is equipped with liquid distribution box, coating assembly includes rotating tube, the lower end of rotating tube is fixed with hollow disc, the lower side of hollow disc is equipped with a plurality of installation box in circular array, the upper wall of installation box is fixed with the connecting pipe fixed with hollow disc, the lower side in installation box inside is fixed with coating brush by bolt.The utility model makes bristle rotate to clean conveying belt by motor, avoid sundries to influence subsequent glass substrate conveying, and by conveying pump work, liquid medicine drenches coating brush, utilize coating brush rotation to coat the surface of glass substrate, improve coating uniformity, also avoid liquid medicine splashing.

The utility model provides coating equipment, relates to the field of processing of semiconductors or photovoltaic materials, and solves the technical problem of non-uniform coating caused by non-uniform distribution of process gas due to a spraying structure of traditional coating equipment. The coating equipment comprises a vacuum cavity; a driving assembly; the spraying block is arranged at the top of the vacuum cavity and is in transmission connection with the second end of the driving assembly, and the spraying block is provided with a first air inlet end and a second air inlet end which are opposite to each other; the two or more air inlet pipes respectively penetrate through the two or more second through holes and are respectively communicated to the first air inlet end and the second air inlet end; the two or more corrugated pipe assemblies are arranged on the two or more air inlet pipes in a sleeving mode respectively. The spraying block is driven by the driving assembly to move in the second horizontal direction, and the gas outlet position of the process gas in the vacuum chamber can be dynamically adjusted, so that the concentration of the process gas at different positions in the vacuum chamber can be flexibly adjusted, and the coating uniformity of sheet materials at different positions is improved.

This invention relates to the field of vacuum coating technology, specifically to a band saw blade coating device and its coating process. The device includes a vacuum coating chamber, a drive mechanism with its output end located within the vacuum coating chamber, and several linkage mechanisms. A support frame, connected to the drive mechanism, is installed within the vacuum coating chamber. The support frame includes a rotatable central column. Each linkage mechanism includes a horizontal shaft rotatably connected to the central column. An inclined shaft, forming an angle with the horizontal shaft's length direction, is mounted on the inclined shaft. A rotating bearing is sleeved on the inclined shaft, and a clamping mechanism for holding the band saw blade roll is sleeved on the rotating bearing. Within the vacuum coating chamber, the band saw blade roll can not only revolve but also change its lateral and vertical angles, allowing the saw teeth to face the target material at more angles. This effectively overcomes the shadow effect caused by the existing technology's limited revolving and rotating capabilities, which results in coating blind spots and uneven film thickness on the saw tooth side. This improves the coating uniformity of all parts of the saw tooth side, especially the front tooth side.