138 results about "Slurry coating" patented technology

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 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 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 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.

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.

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.

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.

The application discloses a secondary battery high-viscosity slurry coating method and device. The coating method is as follows: after the coating substrate sequentially passes through a slurry gap in a vacuum environment and a discharge gap for controlling the thickness of the coating slurry, the coating substrate is coated, and a uniform pole piece is obtained. The discharge gap is arranged on the basis of the slurry cavity. The coating device comprises a coating back roller, a coating member is arranged on the coating back roller, the coating member and the outer periphery of the coating back roller form a gap for coating the coating substrate, the coating member comprises a vacuum cavity and a slurry cavity which are communicated with the slurry gap for first coating the coating substrate, and a coating substrate leading-in mechanism is arranged at the end of the vacuum cavity away from the slurry cavity; a slurry inlet is arranged on the slurry cavity, and a casing at the end of the slurry cavity away from the vacuum cavity and the coating back roller form a discharge gap for re-coating. The device has the advantages of simple structure, convenient operation and the ability to effectively and uniformly coat high-viscosity slurry.

The utility model relates to a heating type automobile seat cushion, and belongs to the technical field of automobile seat cushions. The heating type automobile seat cushion comprises a seat cushion main body, a graphene cloth layer is arranged on the seat cushion main body, a resistance wire is woven in the graphene cloth layer, the resistance wire is connected with a wire harness, and the wire harness is connected with a power supply wire. According to the thermal type automobile seat cushion provided by the invention, the graphene slurry coating is configured, coating or printing of the graphene slurry coating is carried out on the non-woven fabric, and meanwhile, resistance wire weaving, cushion body forming and wire harness leading-out are carried out; the heating type automobile seat cushion has the graphene heating function, far infrared rays are generated, meanwhile, the advantage of resistance wire heating is completely reserved, the heating type automobile seat cushion becomes a far infrared graphene heating cushion with the physical therapy function, the function is reliable, and mass production can be rapidly achieved.

The invention discloses a low-cost solid electrolyte of a molecular sieve composite polymer binder as well as a preparation method and application of the low-cost solid electrolyte, and belongs to the technical field of electrochemistry and solid-state batteries. A low-cost solid electrolyte of a molecular sieve composite polymer binder is composed of molecular sieve powder and an ionic conductive polymer binder, and the molecular sieve powder comprises at least one of transferable lithium ions, sodium ions or potassium ions. The slurry coating film-forming technology adopted by the invention is highly compatible with the electrode coating process of the existing liquid lithium ion battery, a high-temperature sintering step does not need to be introduced, the existing battery production line equipment can be used for transformation and upgrading, and the industrialization threshold and the equipment investment of the solid-state battery are greatly reduced.

The invention relates to a novel two-color slurry coating machine for a non-coaxial three-way catalytic carrier, which comprises a rack, a lifting platform is arranged on the rack, a fixed base, a collecting cabin I, a vacuumizing mechanism I, a collecting cabin II and a vacuumizing mechanism are arranged on the lifting platform, and a placing cavity for placing a ceramic body is arranged on the fixed base; the second collecting cabin is provided with a collecting pipe, the collecting pipe extends into the first collecting cabin, and when the ceramic body is placed in the placing cavity, the collecting pipe is communicated with the second catalytic area; a mounting frame is arranged on the rack, a first pipe body is arranged on the mounting frame in the circumferential direction, a square partition plate is arranged in the first pipe body, and an inner cavity of the first pipe body is divided into a first cavity and a second cavity through the square partition plate. According to the invention, the coating operation of the two-color catalytic slurry of the novel three-way catalytic carrier can be realized.

The invention relates to the technical field of slurry spraying, in particular to a gypsum slurry uniform coating device which comprises a base, a conveying belt is fixedly connected to the interior of the base, a flattening roller is rotatably connected to one end of the base, lower surface protection paper is laid on the top of the conveying belt, and a slurry body is laid on the top of the lower surface protection paper. Upper surface protection paper is laid on the top of the slurry body, an arch frame I is fixedly connected to the top of the base, a shaft rod is rotatably connected to the interior of the arch frame I, and a slurry spray head is fixedly connected to the bottom of the shaft rod. A slurry nozzle is driven to swing back and forth to spray a slurry body towards the top of lower surface protection paper by taking a shaft rod as a fulcrum, and a material digging scraper is driven to move circularly along a rectangular track in the guide directions of a guide sliding rod I and a guide sliding rod II, so that the slurry body between the lower surface protection paper and the upper surface protection paper is dug; and the slurry bodies are accumulated to form wave crest circulating digging, so that the accumulation amount of the slurry bodies on one side of the flattening roller is reduced.

The utility model relates to the technical field of slurry spraying machines, and discloses an auxiliary device for feeding of a slurry spraying machine, which comprises a support frame, the outer wall of the support frame is fixedly connected with a fixed plate, the outer wall of the fixed plate is fixedly connected with a slurry spraying cylinder, the top of the slurry spraying cylinder is fixedly connected with a storage barrel through a pipeline, and the inner wall of the fixed plate is provided with a cleaning mechanism; the cleaning mechanism comprises a concave plate slidably connected to the inner wall of the fixed plate, a limiting assembly is arranged at the top of the fixed plate, a heating pipe is fixedly connected to the inner wall of the movable plate, a control panel is fixedly connected to the right side of the fixed plate, and a collecting mechanism is arranged on the inner wall of the movable plate. According to the slurry spraying device, when the slurry spraying cylinder needs to be cleaned, the concave plate is moved at the same time to drive the movable plate and the movable plate to move towards the middle, then the heating pipe is started to enable the temperature to rise to melt solidified slurry, manual cleaning is avoided, the time and labor are saved, and the inner wall of the spraying opening cannot be scratched.

The utility model discloses a slurry coating device for the photovoltaic industry. The slurry coating device comprises a slurry coating device body and a coating assembly. The slurry coating device body comprises a moving module and a silicon wafer carrier; the silicon wafer carrier is arranged on the moving module in a sliding mode through the coating assembly. The coating assembly comprises a pressurizing motor, a circulating pump, a pressurizing cavity, a pressurizing plunger, a filling port, an exhaust recycling port, a feeding pipe and a returning pipe. The pressurizing motor is slidably arranged on the moving module through a sliding plate; the circulating pump is fixedly arranged on the pressurizing motor through a bolt; the pressurizing cavity is fixedly arranged on the pressurizing motor; the plurality of pressurizing plungers are connected through a connecting plate; the filling port is connected with the circulating pump through a filling valve; the exhaust recovery port is connected with the circulating pump through an exhaust valve; the slurry coating device for the photovoltaic industry is simple and reasonable in structure and ingenious in design, grooves can be carved in the silicon wafer carrier through laser, the line width smaller than 20 micrometers can be achieved through laser groove carving, the limitation of the traditional screen printing line width is broken through, the using amount of slurry can be reduced, and cost can be reduced.

The invention discloses a modified lithium lanthanum zirconium oxide material, a preparation method thereof and a lithium battery diaphragm, and relates to the technical field of battery materials. The modified lithium lanthanum zirconium oxide material is obtained by reacting the lithium lanthanum zirconium oxide with the porous material to form the porous passivation layer and then coating the surface with the polymer, so that the high ionic conductivity performance of the lithium lanthanum zirconium oxide can be exerted, the generation of residual alkali can be effectively inhibited, and the modified lithium lanthanum zirconium oxide material can be used for aqueous slurry coating diaphragms, prolonging the cycle life of batteries and reducing the internal resistance.

This invention discloses a method for preparing recycled coarse aggregate concrete based on slurry coating, comprising: preparing cement, mixing water, water-reducing agent, recycled coarse aggregate, and fine aggregate according to the designed mix proportion of concrete; dividing the mixing water into first-stage mixing water and second-stage mixing water; mixing cement, water-reducing agent, and first-stage mixing water to obtain cement paste; mixing recycled coarse aggregate with cement paste to obtain slurry-coated recycled coarse aggregate; and mixing fine aggregate, second-stage mixing water, and slurry-coated recycled coarse aggregate to obtain recycled coarse aggregate concrete; wherein, the mass of the first-stage mixing water is determined according to the type of recycled coarse aggregate and its natural saturation based on a fitted model. This invention requires no pretreatment of the recycled coarse aggregate; the technical performance of recycled aggregate concrete can be significantly improved simply by changing the order of material addition during the concrete mixing process.

The utility model is suitable for the technical field of battery manufacturing, and provides a coating device and pole piece coating equipment, the coating device comprises a back roller and a coating die head, the coating die head comprises a first die head, a second die head and a third die head which are sequentially arranged in the first direction, the first die head comprises a first die lip, the second die head comprises a second die lip, and the third die head comprises a third die lip; the third die head comprises a third die lip, a first coating opening is formed between the first die lip and the second die lip, a second coating opening is formed between the second die lip and the third die lip, and the first coating opening and the second coating opening are configured to coat the surface of a base material with upper-layer slurry and lower-layer slurry respectively; in the first direction, the outer contour line, located at the second coating opening, of the third die lip is higher than the center line of the back roller. The tail end of the first die lip protrudes towards the side close to the back roller relative to the second die lip and the third die lip. According to the technical scheme provided by the embodiment of the invention, the uniformity of slurry coating in a coating process is improved.

The present invention relates to a slurry composition and a sodium battery electrode coating material comprising at least one electrode active material, at least one binder, at least one alkaline additive and optionally at least one conductive agent, the basic additive is selected from the group consisting of metal hydroxides, metal carbonates, metal bicarbonate, metal silicates, ammonia or ammonium hydroxide, metal amines, metal amides, metal hydrides, metal oxides, metal cyanides, or any combination thereof. The invention further relates to an electrode and a battery comprising said electrode active material or made from said slurry coating. The invention further relates to a method for manufacturing the slurry composition, the electrode coating material thereof, the electrode and the battery.

The application discloses a water-based lithium iron positive plate and a preparation method thereof. The positive plate is a water-based positive slurry, and comprises LFP, carbon nanotubes CNT, a conductive agent SP, a water-based binder, a dispersing agent and deionized water. The preparation method of the water-based lithium iron positive plate is started from aspects of a positive formula, coating parameters and process technology, and the like. By adding an NMP+PC (1:2) mixed solution in mixing, strictly controlling slurry viscosity, and low-speed stirring in a turnover tank, guarantee is provided for slurry coating. By controlling coating temperature, installing a humidifying device, and starting from a single side, and controlling workshop temperature and humidity, the water-based lithium iron positive plate is coated on a single side without edge curling, edge cracking, hardness and brittleness, and generation breakage. The water-based positive plate has solved the problem that the water-based positive plate cannot be mass-produced all the time, and a feasible preparation method of the water-based lithium iron positive plate is successfully developed. The prepared battery has similar performance to that of an oil-based lithium battery, is lower in cost, and is green and pollution-free.

This invention discloses a wear-resistant reinforcing layer on the surface of austenitic stainless steel and its preparation method. Using nanodiamond as a carbon source, it is generated in situ on the surface of an austenitic stainless steel substrate through slurry coating and vacuum heat treatment, forming a grain-refining region and creating a continuous gradient reinforcing layer between the nanodiamond and the substrate. This invention utilizes nanodiamond as a highly active carbon source, combined with the synergistic diffusion effect of a specific diffusion aid, to form a continuous grain-refining reinforcing layer on the surface of austenitic stainless steel, achieving a good gradient reinforcing layer with the substrate and significantly improving the overall mechanical properties of the austenitic stainless steel surface.

The invention discloses an yttrium oxide modified ZrC-SiC coating on the surface of a carbon / carbon composite material and a laser deposition method of the yttrium oxide modified ZrC-SiC coating. The method comprises the following steps: firstly, carrying out roughening treatment on the surface of the carbon / carbon composite material by adopting a sand blasting process; then, a Si-SiC transition layer is constructed on the surface of the base body through a slurry coating method, and the Si-SiC transition layer can reduce thermal shock damage in the laser machining process and can effectively coordinate the thermal expansion difference between a yttrium oxide modified ZrC-SiC coating system and the base body; and finally, the yttrium oxide modified ZrC-SiC outer coating is prepared on the surface of the SiC transition layer through the laser energy directional deposition technology, and yttrium oxide achieves performance jump through dual effects: Y < 3 + > stabilizes ZrO2 crystal lattices and inhibits high-temperature phase change peeling; and the Y-Si-O glass phase is dynamically sealed and filled, so that the self-repairing capability of the coating is synergistically improved. The method has the advantages of being high in controllability, short in preparation period, high in coating compactness, excellent in ablation resistance and the like through a synergistic mechanism of interface strengthening, thermal stress gradient coordination and component function compounding. The method has good development prospects and economic benefits.

The utility model relates to the technical field of coating machines, in particular to a teflon high-temperature cloth coating machine capable of enlarging the coating range. A first moving block is connected with the left end and the right end of an extrusion roller in a screwed mode through a shaft and a bearing respectively; first sliding grooves are formed in the left side and the right side of the rack correspondingly, and the first moving blocks are embedded in the first sliding grooves. The rotating motor is fixed to the first moving block on the left side. An output shaft of the rotating motor is connected with the first moving block on the left side. The first limiting rods are movably inserted into the first moving blocks on the left side and fixed to the first sliding grooves. The extrusion motor is fixed to an inner top plate of the first sliding groove in the right side. The limiting mechanism is arranged on the coating roller; the slurry mechanism is arranged on the front side of the coating roller; the thickness required by slurry coating can be adjusted according to actual conditions, and the coating range is widened; the coating range can be adjusted according to the width of cloth, and slurry is prevented from overflowing; and the cloth coating device can adapt to cloth with different thicknesses, cloth loosening during coating is avoided, and practicability is improved.

The invention discloses a wet preparation method of a microfiber Yangbuck composite material for waterproof and breathable shoes. The wet preparation method is characterized by comprising the following steps: step 1, preparing slurry; step 2, pretreating the base cloth; step 3, coating the slurry; step 4, wet solidification; step 5, water washing treatment; step 6, waterproof treatment; step 7, drying, foaming and shaping; and 8, cooling and rolling. According to the invention, a micron-sized porous structure is formed through a wet solidification process, and through cooperation with the synergistic effect of the pore-forming agent, the air permeability of the material is more than or equal to 500g / (m < 2 >. 24h), and meanwhile, the hydrostatic pressure is more than or equal to 30kPa, so that external moisture permeation is effectively blocked, moisture in shoes can be quickly discharged, and the core pain point that the traditional synthetic leather for shoes is waterproof and airtight or breathable and not waterproof is thoroughly solved.

The invention discloses a corrosion-resistant wear-resistant valve core and a processing technology thereof, and relates to the technical field of valve body processing, and the processing technology comprises the following steps: placing nickel-based alloy steel in a reaction container, and sequentially carrying out solution treatment, double-aging heat treatment and hot die forging processing molding to obtain a heat-treated valve core rough blank; carrying out pre-oxidation treatment on the heat-treated valve core, and then carrying out laser cladding on alloy powder on the surface of the valve core to obtain a valve core rough blank; and the valve element rough blank is sequentially subjected to milling, sand blasting treatment, coating slurry coating and curing, and the valve element is obtained.