227 results about "Slurry coating" patented technology

The invention discloses an integrated preparation method of a SiC-based composite material environment barrier coating in the technical field of aviation thermal structure materials, which comprises the following steps: cleaning a substrate, carrying out vacuum impregnation of phenolic resin and curing, coating Si slurry to form a bonding layer, coating rare earth silicate slurry to form a barrier layer, and drying to obtain the SiC-based composite material environment barrier coating. And finally carrying out high-temperature heat treatment in an inert atmosphere. According to the method, through an integrated slurry coating and gradient curing process, the performance of a base body is protected, and meanwhile efficient preparation of the coating is achieved; by adopting an integrated slurry coating and gradient curing technology and combining with an optimized medium-temperature sintering process, the matrix performance is effectively protected while the compactness of the coating is ensured, the bonding strength and interface stability of the coating are improved through the design of the phenolic resin transition layer and the silicon bonding layer in cooperation with the rare earth silicate barrier layer, and the bonding strength of the coating is improved. And the coating shows excellent protection performance in a high-temperature corrosion environment.

The utility model belongs to the technical field of electrode printing, and discloses a full-opening steel plate for printing and printing equipment. The full-opening steel plate for printing comprises a first metal layer and a second metal layer, and the first metal layer is provided with a printing opening in the first direction; the second metal layer is stacked on one side of the first metal layer, a slurry penetrating opening is formed in the second metal layer in the first direction and penetrates from the slurry coating face to the printing opening, a plurality of connecting parts are arranged in the slurry penetrating opening at intervals in the first direction, the connecting parts are partially hollowed out, and the connecting parts and the first metal layer are arranged at intervals; and a slurry storage cavity is formed between the connecting part and the first metal layer. According to the full-opening steel plate for printing, the locally-hollowed-out connecting part and the slurry storage cavity are used for storing slurry together, so that sufficient slurry is supplied to the printing opening, the situation that gaps are generated in the positions, corresponding to the connecting part, of the fine grids due to insufficient slurry supply is prevented, the printing height of the welding area is effectively controlled, and the printing quality of a battery piece is improved.

The utility model provides a coating system for lithium battery slurry. The lithium battery slurry coating system comprises a slurry storage part, a slurry temporary storage part, a coating die head and at least one power component, the lithium battery slurry coating system further comprises a material conveying pipeline, a material supplementing pipeline and a material mixing pipeline. The lithium battery slurry coating system has a material supplementing state in which the slurry storage part conveys the slurry to the slurry buffer part through the material supplementing pipeline, a coating state in which the slurry buffer part conveys the slurry to the coating die head through the material conveying pipeline, and a material mixing state in which the slurry circularly flows in the slurry storage part, the material supplementing pipeline, the slurry buffer part, the material mixing pipeline and the slurry storage part in sequence. According to the technical scheme provided by the utility model, the problem in the prior art that the coating system for the lithium battery slurry is relatively long in coating and coating adjustment time is solved.

The invention discloses an optical paste film and a preparation method thereof, and relates to the technical field of optical functional materials. The optical slurry film is prepared by taking a polyethylene glycol terephthalate film as a base material and coating an optical slurry coating, the optical slurry coating is prepared from the following raw materials in parts by weight: 12 to 16 parts of nano silicon dioxide, 22 to 28 parts of acetone and butanone mixed solvent, 7 to 9 parts of modified titanium dioxide, 4 to 6 parts of nano zirconium oxide, 30 to 35 parts of modified epoxy resin, 18 to 22 parts of butyl acrylate, 4 to 6 parts of dioctyl sebacate, 2.5 to 3.5 parts of silane coupling agent KH-570, 1 to 1.5 parts of organic silicon flatting agent and 0.6 to 1 part of organic silicon defoaming agent. 1.2-1.8 parts of an antioxidant 1010, 3-4 parts of a photoinitiator 184 and 6-8 parts of bis (4-tert-butylphenyl) iodine hexafluorophosphate; the polyethylene glycol terephthalate film pretreatment material comprises absolute ethyl alcohol and deionized water. The raw materials are scientifically proportioned, the titanium dioxide and the epoxy resin are clearly modified, the preparation process is complete, and the finished product is high in light transmittance, good in weather resistance, adaptive to the requirements of the optical field and high in practicability.

The invention relates to the technical field of solar cells, in particular to a preparation method for fission of a line mark substrate into a multi-stage control tower nanometer suede, which comprises the following steps of: S1, processing a silicon wafer to obtain a double-sided polished flat surface; s2, forming an oxide layer on the polished surface; s3, impurity removal treatment; and S4, small suede etching is carried out after the nano mask particles are attached. According to the invention, the non-trace substrate is realized, the silicon oxide layer is formed on the silicon by spraying ozone, and the problem of non-uniform phosphorus slurry coating of the double-sided polished silicon wafer is solved.

The embodiment of the invention provides equipment and a method for preparing a silver-carbon negative electrode plate, the silver-carbon negative electrode plate and a solid-state battery. The preparation equipment of the silver-carbon negative electrode plate comprises an unwinding device, a negative electrode slurry coating device, a spraying device and a first drying oven. Wherein the unwinding device is used for conveying a negative electrode current collector to the negative electrode slurry coating device. The negative electrode slurry coating device is used for coating the surfaces of the two sides of the negative electrode current collector with negative electrode slurry containing carbon elements and drying the negative electrode slurry to obtain an intermediate pole piece; and the spraying device is used for spraying a silver-containing solution on the surfaces of the two sides of the middle pole piece to obtain a negative pole roll. And the first drying oven is used for drying the negative electrode roll to obtain the silver-carbon negative electrode plate. The silver-carbon negative electrode plate prepared by the preparation equipment is relatively low in energy consumption and cost and relatively high in efficiency.

The application discloses a kind of lithium battery water system negative electrode coating drying system, including tunnel type oven box, spraying device, adjustable air nozzle and detection device, tunnel type oven box left and right sides are respectively symmetrically opened with feed inlet and discharge port, water system negative electrode is driven and set between feed inlet and discharge port, two groups of mounting plates are fixedly installed in the inside of tunnel type oven box on the upper and lower sides of water system negative electrode, a plurality of air inlets are equidistantly opened on two groups of mounting plates, adjustable air nozzle is installed in the outside of each air inlet, detection device includes at least four groups of temperature and humidity sensors, temperature and humidity sensors are installed between adjustable air nozzle at intervals, spraying device is installed on the upper and lower places of tunnel type oven box at feed inlet place.The advantage of the present application is that water can be sprayed on the surface of the foil of the water system negative electrode before slurry coating, which replaces the slurry through the oven first to increase the humidity in the tunnel type oven, so that the humidity and temperature in the oven quickly reach the working state, avoiding the subsequent dry cracking.

The invention discloses a battery pole piece, a preparation method thereof and an all-solid-state lithium ion battery. The battery pole piece comprises a current collector and positive electrode slurry coatings coated on two sides of the current collector, and a solid electrolyte membrane which is cured through in-situ printing based on a 3D printing technology is arranged in the middle of the positive electrode slurry coatings. Insulating ceramic adhesive coatings which are cured through in-situ printing based on a 3D printing technology are arranged on the areas, close to the peripheral edge, of the positive electrode slurry coating and the areas, close to the positive electrode slurry coating, of the two sides of the tab. According to the battery pole piece formed through 3D printing, the short-circuit rate of an all-solid-state lithium ion battery can be effectively reduced, and the energy density and the rate capability of the all-solid-state lithium ion battery can be improved; the problem of short circuit or insulation reduction caused by the ultrathin solid electrolyte and burrs on the edge of the pole piece can be prevented, and the consistency, the stability and the safety of the battery are improved.

A high-compaction-resistant nano carbon-coated aluminum current collector, relating to the technical field of current collectors of batteries.The nano carbon-coated aluminum current collector comprises an aluminum current collector and mesh-shaped conductive layers respectively coated on the upper and lower surfaces of the aluminum current collector, wherein the mesh-shaped conductive layers each are formed by slurry coating and baking, and a slurry comprises a conductive material, a binder, nanocellulose, a cross-linking agent, a solvent, and a wetting agent. Through the design of a slurry formulation and an aluminum current collector coating, a layer of mesh-shaped structure is formed in a nano conductive coating, such that the effect of conductive particles on pinholes of an aluminum current collector is reduced, and a nano carbon-coated aluminum current collector can withstand higher compaction density of active materials, thereby reducing the frequency of aluminum foil breakage, improving the energy density of a battery.

The invention discloses an electric arc additive manufacturing method of a TaC particle reinforced TC4 titanium-based composite material and application of the electric arc additive manufacturing method, and belongs to the technical field of metal-based composite material additive manufacturing. According to the method, TC4 titanium alloy serves as a base body, TaC particles serve as a reinforcement phase, interlayer slurry coating and a cold metal transition electric arc additive process are combined, and uniform dispersion and effective reinforcement of the TaC particles in the base body are achieved through accurate raw material proportioning, slurry system optimization and process parameter regulation and control. When the adding amount of TaC is 5 wt.%, the tensile strength of the composite material reaches 1024 MPa, the ductility is 8.2%, the average hardness is 351 HV0.5, the wear rate is 27.3 mg / g, and the comprehensive mechanical performance is optimal; when the addition amount is 7.5 wt.%, the average hardness is improved to 386 HV0.5, the wear rate is reduced to 20.7 mg / g, but the tensile property is reduced, so that the high-wear-resistance composite material is more suitable for high-wear-resistance scenes. The problems of TaC particle agglomeration, poor interface bonding and unbalanced toughness are solved, the process is simple, convenient and efficient, the cost is controllable, and the method is suitable for large-scale manufacturing of high-performance structural parts in the fields of aerospace, national defense equipment and the like.

This utility model discloses a device for preparing a gas diffusion electrode, comprising: a bottom support plate and a diffusion electrode carrier limiting groove, wherein the diffusion electrode carrier limiting groove is disposed on the upper end of the bottom support plate; and a roller baffle disposed on the outer side of the upper end of the bottom support plate. This device for preparing a gas diffusion electrode uses a handle to move the front and rear slurry coating rollers on the roller movement track groove, making the coating process more controllable. Different specifications of the structure can be selected according to usage needs, facilitating large-scale use. By pulling the movement of the front and rear slurry coating rollers and connecting the pump connecting hose to the slurry output connector, controllable and uniform preparation of the electrode catalyst is achieved, providing a simple and effective method and equipment for large-scale mass production.

The application discloses a shell slurry performance online quantitative evaluation system and method based on wax mold surface modification, and the system comprises a multi-state wetting wax mold preparation module, an automatic coating and multi-parameter rheological observation module and a precise wax residue analysis module which are sequentially connected and cooperatively work; the multi-state wetting wax mold preparation module selectively manufactures patterned areas with different hydrophilic and hydrophobic characteristics including hydrophilic, hydrophobic and super-hydrophobic on the surface of a standard test wax mold by controlling ultraviolet laser processing parameters; the automatic coating and multi-parameter rheological observation module is used for automatically completing slurry coating and quantifying the leveling behavior of the slurry based on machine vision; the precise wax residue analysis module adopts laser-induced breakdown spectroscopy technology and is used for quantitatively detecting the wax residue on the inner surface of the shell after dewaxing. The application also discloses an online quantitative evaluation method, which can provide direct and reliable data support for optimizing the slurry formula and the shell preparation process, thereby realizing automatic, high-precision and low-cost online quality control and reducing the casting scrap rate from the source.

The present invention relates to a low-metal antenna and its design method. A carbon powder slurry is applied to the surface of an antenna element to form a carbon powder slurry coating. The antenna element is a semiconductor radiating element. The disclosed antenna proposes a typical alternative material for manufacturing radar antennas, which can reduce the metal content of the radar antenna in a composite mine detector system, thereby effectively reducing the radar antenna's impact on the primary field of the electromagnetic induction module, improving system sensitivity and dynamic range, and achieving beneficial effects in electrical performance, quality, and cost.

The invention discloses a low-fat flour-coated minced fillet product suitable for air fryer heating and a processing method thereof.The processing method comprises the following steps of minced fillet unfreezing, minced fillet chopping, mixing and seasoning, shaping, water retention and brittleness increasing treatment, flour coating, slurry coating, freezing and packaging.The low-fat flour-coated minced fillet product suitable for air fryer heating and the processing method thereof are low in oil content and free of peculiar smell, and the processing method of the low-fat flour-coated minced fillet product suitable for air fryer heating is suitable for air fryer heating. The product has distinct taste gradation, is convenient and fast to eat, and has a good application prospect.

The present invention provides a method for coating a safety layer slurry on a battery positive electrode sheet and a battery positive electrode sheet. The method for coating a safety layer slurry on a battery positive electrode sheet includes preparing a safety layer slurry, extrusion coating, and baking. The safety layer slurry preparation comprises uniformly mixing a safety solute and a binder, gradually adding a solvent in two or more portions and stirring at high and low speeds to achieve a solution with a solid content of 3-8% and a viscosity of 50-200 cP. The extrusion coating utilizes a multi-layer extrusion die, wherein an active material layer slurry is coated between a foil to be coated and the safety layer slurry, the distance between the coating die and the active material layer is 50-130 μm, and the thickness of a gasket at the safety layer slurry outlet is 0.1-0.3 mm. The present invention improves the solid content and viscosity of the safety layer slurry, the coating die gap, and the thickness of the gasket, so that the safety layer coated by this method can have a thin thickness and good safety without affecting the energy density of the electrode sheet.

The application provides a coating die, comprising a discharge cavity, the discharge cavity having a first inlet and a second inlet arranged oppositely, and a discharge outlet; the feeding direction of the discharge cavity and the discharging direction have an included angle; the slurry leaves the coating die from the discharge outlet. Wherein, the feeding direction is the direction of the slurry flowing into the discharge cavity from the first inlet and the second inlet; the discharging direction is the direction of the slurry flowing out from the discharge outlet. In the above technical solution, since the first inlet and the second inlet are arranged oppositely, and the feeding direction and the discharging direction have an included angle, the slurry entering from the first inlet and the second inlet will meet and collide to offset part of the kinetic energy, and then turn to leave the die from the discharge outlet. Since the kinetic energy of the slurry is consumed inside the die, the impact on the proton membrane is smaller during the process of the slurry coating on the surface of the proton membrane, and the thickness unevenness of the coated slurry on the length of the discharge outlet can be effectively reduced.

This utility model discloses a PCCP pipe winding and slurry impregnation device, belonging to the field of PCCP pipe production technology. It includes a tank, a stirrer, and a slurry coating rack. An opening is provided at the top of the tank, and the stirrer is installed at the bottom. The slurry coating rack is mounted on the tank and has several pulley sets, each including at least one pulley. At least one pulley set is located at the bottom of the tank. The winding wire passes through several pulleys and is wound onto the rotating PCCP pipe wall through the opening. This invention solves the technical problems of uneven slurry application on the steel wire surface, high labor costs, and high energy consumption in the traditional winding and slurry coating process, which relies on manual spraying using a mud pump.

The electrode slurry coating system according to the present invention includes a supply pipe that serves as a transfer path for electrode slurry from a supply tank to a coating die, a mass flow meter installed on the route of the supply pipe to measure the flow rate and density of the electrode slurry transferred through the supply pipe, and a control unit that calculates a predicted loading amount of electrode slurry based on measurement information measured by the mass flow meter and controls the calculated predicted loading amount of electrode slurry to satisfy a loading amount management range.

This invention provides a method for preparing a zinc anode protective coating based on a dual-gradient zinc-affinity-conductivity structure. First, polymer-derived carbon fibers and silver-coated carbon fibers are prepared, and silver-coated carbon fiber slurries and polymer-derived carbon fiber slurries are formed respectively. These are then sequentially coated onto a zinc sheet using a stepwise slurry coating method to obtain a CF / Ag-CF@Zn electrode. This CF / Ag-CF@Zn electrode forms a dual-gradient protective coating with a top layer of polymer-derived carbon fibers and a bottom layer of silver-coated carbon fibers. By relying on the inherent zinc affinity-conductivity difference of the materials, it can directionally guide the internal ion-electron flow to achieve a safe bottom zinc deposition mode, thereby avoiding unfavorable top zinc dendrite growth. This achieves a highly reversible and stable zinc anode, providing a more competitive approach for rationally designing zinc anode coatings to construct ultra-stable aqueous zinc batteries.

A coating apparatus (10) and a coating system. The coating apparatus (10) comprises a coating die head (100) and a slurry supply source (200), wherein a first discharge port (111) and a second discharge port (112) adjacent to each other are formed on the coating die head (100); the slurry supply source (200) is connected to the coating die head (100); and slurry provided by the slurry supply source (200) is coated on a main body area (21) of an electrode sheet (20) via the first discharge port (111), and is coated on a thinned area (22) of the electrode sheet (20) via the second discharge port (112). The coating apparatus and system improve the work efficiency of slurry coating, and increase the yield rate of finished electrode sheets.

A method of making a solid-state electrode sheet is provided. The method includes mixing precursors capable of chemically reacting to form a target solid-state electrolyte (SSE) together with one or more of a binder, an electrode active material, and a conductive carbon in a solvent to form a coating slurry. The precursors a undergoes a chemical reaction in the solvent to form the target SSE. The coating slurry is applied onto a current collector. The solvent is evaporated from the coating slurry on the current collector, thereby producing a solid-state electrode sheet having a target SSE. The precursors may be lithium sulfide (Li2S) and phosphorus pentasulfide (P2S5) reacting in a tetrahydrofuran (THF) solvent to produce a sulfide-base SSE such as Li3PS4.

This invention provides an electrode plate for electro-deintercalation and extraction of lithium, its preparation method, and its application. The electrode plate comprises a porous current collector and slurry coatings on both sides of the porous current collector. The slurry coatings on both sides of the porous current collector are connected through the pores of the current collector, and the slurry coatings include a structural agent. The electrode plate of this invention, by embedding the slurry coating containing the structural agent into the current collector, forms an extremely robust three-dimensional conductive mesh structure electrode plate with line contact, which improves both the electrode plate's erosion resistance and its conductivity and lithium extraction capability.

This invention relates to the technical field of textile packaging products, and in particular to a composite textile packaging bag and a composite process, comprising the following steps: S1, slurry preparation and homogenization: a bio-based polymer, plasticizer, modified nanofiller and solvent are mixed in proportion and placed in a stirring device for mixing and stirring to form a homogeneous functional composite slurry; S2, substrate pretreatment: a biodegradable textile substrate is provided and its surface is activated; S3, slurry coating; S4, gradient curing and composite: the substrate coated with slurry is sequentially passed through a first heating zone, a second heating zone and a third heating zone with gradient temperatures for stepwise drying, cross-linking curing and cooling, so that the functional composite slurry forms a dense barrier layer on the surface of the substrate, thereby obtaining the multifunctional biodegradable composite material; the substrate and slurry components used are biodegradable, improving environmental friendliness.

The invention belongs to the technical field of batteries, and particularly relates to a positive pole piece and a preparation method and application thereof. The positive pole piece comprises a current collector, and a first positive slurry coating and a second positive slurry coating which are sequentially coated on the current collector, and the second positive electrode slurry coating comprises the following raw materials: an oxide solid electrolyte, a polyphosphazene compound, a second binder and a second solvent. The positive pole piece has the beneficial effects that the positive pole piece can effectively prevent heat diffusion in the battery, can avoid thermal runaway of the battery, and effectively improves the safety performance of the battery under the condition of not influencing the performance of the battery.

The invention relates to a coating method of a powerful anti-glare sugar-coated tablet. The coating method comprises the following steps: coating an isolating layer; coating a mixed slurry layer; coating a sugar coating layer; according to the preparation method disclosed by the invention, a novel mixed slurry coating method is adopted, the simple syrup and the talcum powder are prepared into mixed slurry, and the mixed slurry is uniformly dripped in a production process by using an automatic dripping method of a coating gun, so that the non-uniformity of manually scattering the talcum powder is reduced, the production operation is simple and convenient, the coating difficulty is reduced, and the operation error rate is reduced; the quality risk of an intermediate product is reduced, dust flying and pollution to the production environment in the production process are avoided, and the weight increment of the coating is reduced. According to the method, the use amount of talcum powder is only 1 / 2 of that of a traditional method, and the rejection rate of cut pieces is reduced to 2%-3% from 4%-5% of that of the original method.

The invention provides a lithium ion battery pole piece coating slurry preparation and coating method, and belongs to the field of lithium batteries. The preparation method comprises the following steps: firstly preparing a three-dimensional porous pole piece substrate, then preparing uniformly dispersed slurry, finally obtaining a coating which is good in combination, uniform in thickness and excellent in cycle performance through multiple times of adsorption-drying, and completing slurry coating of the pole piece. The invention overcomes the problems of poor uniformity and combinability of slurry preparation and coating and poor battery performance in the existing pole piece coating, and can be used for slurry coating treatment of high-performance lithium ion battery pole pieces.

This invention provides a multilayer coated low-temperature carbon capture material, its preparation method, and its application. The preparation method employs a four-layer sandwich multilayer coating process: a mixed slurry-alumina slurry-mixed slurry-alumina slurry. A mixed slurry coating (active layer), an alumina slurry coating (bonding transition layer), a mixed slurry (active layer), and an alumina slurry (protective layer) are sequentially formed on the surface of a porous honeycomb carrier. The transition layer and protective layer formed by the alumina slurry enhance the bonding strength between the active ingredient (potassium carbonate) and the carrier, while preventing the active ingredient from directly contacting external moisture, reducing potassium carbonate shedding during cycling, and ensuring stable carbon capture performance during multiple adsorption-desorption cycles. The multilayer thin-coating method ensures the effective loading of the active ingredient and avoids cracking and peeling caused by excessive internal stress in thick coatings, thus improving the overall stability of the coating.

An edge glue coating extrusion die, the present application relates to battery processing production technology field, especially relates to functional slurry coating and insulating slurry coating for lithium battery extrusion die. By main film coating mechanism, edge glue coating mechanism and feed adjusting mechanism, main film coating mechanism and edge glue coating mechanism are independently arranged, and are embedded with each other, the glue amount of main film coating mechanism is adjusted in real time dynamically through feed adjusting mechanism, and the edge glue coating mechanism can switch the edge glue coating type at any time, which can greatly improve the efficiency in production, and can meet higher production speed, higher product requirement. The present application has the following advantages: 1) two functional slurries and insulating slurries can be coated simultaneously; 2) the different discharge opening ends arranged at equal intervals are alternately arranged, which can meet the material coating of all products with different coating widths; 3) the glue amount of main film coating is controllable.

A multifunctional vermicelli production line, arranged sequentially according to the material conveying direction, includes a dry powder quantitative conveying device, a powder-liquid quantitative dispensing device, a powder mixing device, a raw vermicelli dough conveyor, a drum powder conveyor, a dough dough cooking machine, a cooked dough dough conveyor, a dough dough extruder, a vermicelli conveyor, a vermicelli pelletizer, a high-pressure extrusion machine, a vermicelli stabilizer, an anhydrous ambient temperature loosening machine, a vermicelli cooking machine, a moisturizing jelly machine, a vermicelli stretching machine, a cutting and boxing machine, a vermicelli block shaping machine, a dryer, an air cooler, and packaging equipment. The powder mixing device includes a pulping machine, a slurry coating machine, and a powder mixing machine. The powder-liquid quantitative dispensing device conveys dry powder to a quantitative storage tank and quantitatively supplies water to the pulping machine. The quantitative storage tank quantitatively conveys dry powder to the powder mixing machine. The pulping machine conveys slurry to the slurry coating machine, which then coats the dry powder in the powder mixing machine with the slurry, forming raw vermicelli dough within the powder mixing machine. By adding a pulping machine and a slurry coating machine to the production line, this invention can adapt to producing vermicelli from various raw material dry powders containing different dietary fibers.

The utility model provides a wax mould surface slurry coating device, which belongs to the technical field of investment casting, and aims to solve the problems that the thickness of a shell is not uniform due to the fact that a part of the position of a wax mould is possibly thinner during coating, and sand blasting needs to be matched in the slurry coating process, and the movement of the wax mould is time-consuming and troublesome due to back-and-forth control. The transverse moving mechanism is fixedly connected with the slurry dip dyeing pool and the quartz sand spraying box; the top of the rotary supporting mechanism is fixedly connected with the transverse moving mechanism. The swing angle control mechanism is mounted in the rotary supporting mechanism; the wax mold can be fixed at any angle, slurry coating of the wax mold is facilitated, and time is saved; and the slurry coating effect and the slurry coating uniformity can be improved through rotation of the wax mold, and sand blasting is facilitated.