26results about How to "Reduce repair" patented technology

The invention discloses a nanometer silicon filled microcrystalline graphite negative electrode material and a preparation method and application thereof. The preparation method of the nano-silicon filled microcrystalline graphite negative electrode material comprises the following steps: by taking microcrystalline graphite as a base material, depositing silane between sheet layers of the microcrystalline graphite by adopting a gradient heating method to obtain a nano-silicon filled microcrystalline graphite composite material; and finally, forming the nano-silicon filled microcrystalline graphite negative electrode material with a porous structure on the surface of the nano-silicon filled microcrystalline graphite composite material through carbon source coating carbonization. According to the nano-silicon-filled microcrystalline graphite negative electrode material with the core-shell structure provided by the invention, an inner core is a silicon-graphite composite material formed by nano-silicon-filled microcrystalline graphite, nano-silicon particles are filled in the surfaces and gaps of crystalline grains of the microcrystalline graphite, volume expansion of the nano-silicon in the charging and discharging process is inhibited by a microcrystalline graphite matrix material, and particularly, the volume expansion of the nano-silicon in the charging and discharging process is inhibited by the microcrystalline graphite matrix material. And due to different structural orientations of the microcrystalline graphite, the stress effect can be counteracted, and the volume expansion of the material is further inhibited.

The invention discloses a preparation method of a zinc-dihydromyricetin nano-enzyme and application of the zinc-dihydromyricetin nano-enzyme in preparation of drugs for promoting healing of diabetic wounds, and the zinc-dihydromyricetin metal polyphenol nano-enzyme (Zn-DHM) is obtained by coordinating a metal element zinc (Zn) and a natural product dihydromyricetin (DHM) through a one-step method by taking PVP as a surfactant. The Zn-DHM nano-enzyme prepared by the invention has antioxidant property and cell proliferation and migration promoting ability, and can maintain metabolism and immune homeostasis of diabetic wounds, so that the Zn-DHM nano-enzyme can accelerate early healing of the diabetic wounds.

The invention discloses an impact type rotating wheel welding structure based on robot welding and a using method of the impact type rotating wheel welding structure, and relates to the technical field of production and manufacturing of impact type rotating wheels, in particular to the impact type rotating wheel welding structure based on robot welding and the using method of the impact type rotating wheel welding structure. The root water buckets are arranged on the rotating wheel center body, and the external water buckets are arranged on the root water buckets; a butt welding groove is formed in the connecting face of the external water bucket and the root water bucket, and the welding groove is arranged to be a multi-section linear groove. The method has the advantages that the gradual change positions are designed into a plurality of fixed-angle positions, and the robot is adopted for multi-layer and multi-pass welding. A complex space gradient welding position is optimized into a plurality of fixed-angle welding positions, and parameter self-adaption in the robot welding process is simplified, so that robot welding is achieved, the welding quality of the impact type rotating wheel is guaranteed, and the cavitation erosion resistance of the rotating wheel is improved.

The invention relates to the technical field of silicon-based anode materials, in particular to a method for reducing structural deformation and damage in the circulation process of a silicon-based anode. The preparation method comprises the following steps: adopting Ti < 3 > C < 2 > T < x > MXeneamp; the SGC composite material is used as a silicon-based anode active material; the Ti < 3 > C < 2 > T < x > M < X > eneamp; the preparation method of the SGC composite material comprises the following steps: (1) dispersing nano silicon into phenolic resin, then enabling the nano silicon and graphene oxide to be adsorbed and self-assembled to form gel by utilizing a surface charge adsorption effect, and then performing freeze drying, grinding, carbonization treatment and CVD treatment to obtain the SGC composite material; (2) the surface of the SGC composite material is coated with the Ti < 3 > C < 2 > T < x > MXene nanosheets in a vacuum suction filtration mode, and Ti < 3 > C < 2 > T < x > MXene amp is obtained; the invention discloses an SGC composite material.

The invention discloses a SiOX / microcrystalline graphite negative electrode material and a preparation method and application thereof. Relates to the technical field of lithium battery cathode materials. The preparation method comprises the following steps: by taking microcrystalline graphite as a base material, growing nano silicon oxide particles in situ on the surface of the microcrystalline graphite and in gaps of sheet layers by adopting a hydrothermal reaction method to form a SiOX / microcrystalline graphite composite material, and coating the surface of the SiOX / microcrystalline graphite composite material with a carbon coating layer with a complete carbon layer structure, and finally, the SiOX / microcrystalline graphite negative electrode material with the core-shell structure is formed. By adopting the technical scheme, the stress effect caused by silicon volume expansion in the charging and discharging process is counteracted and inhibited by utilizing the disordered layer structure characteristic that the structure orientation of fine scales of the microcrystalline graphite is different; meanwhile, the nano SiOX particles are filled in the gaps of the microcrystalline graphite flake layer, and the fine flake graphite constructs a three-dimensional conductive network structure, so that the problem of poor conductivity of the SiOX particles is solved.

The invention discloses a SiO X / Microcrystalline graphite negative electrode material and its preparation method and application; relates to the technical field of lithium battery negative electrode materials. The preparation method comprises using microcrystalline graphite as a matrix material, using a hydrothermal reaction method to in-situ grow nano silicon oxide particles on the surface of microcrystalline graphite and in the gaps between the sheets to form SiO X / microcrystalline graphite composites, and in the SiO X The surface of the microcrystalline graphite composite material is coated with a carbon coating layer with a complete carbon layer structure, and finally a SiO X / Microcrystalline graphite negative electrode material. The technical solution of the present invention uses the structure of microcrystalline graphite flakes with different structural orientations to offset and suppress the stress caused by silicon volume expansion during the charging and discharging process; at the same time, nano-SiO X The particles are filled in the gaps of the microcrystalline graphite flake layers, and the fine flake graphite builds a three-dimensional conductive network structure, improving the SiO X The problem of poor electrical conductivity of particles.

The present invention discloses a fine risk assessment method for coupling environmental equity and effective dose, comprising the following steps: step one, obtaining the concentration of pollutants in soil; step two, constructing a conceptual model of the site; step three, identifying key exposure pathways: taking the highest detected concentration of the pollutants of concern in the soil as the exposure concentration, preliminarily calculating the proportion of the health risks of the pollutants of concern under different exposure pathways to the total health risks of the pollutants of concern under all exposure pathways, and identifying the exposure pathway with the highest proportion as the key exposure pathway; step four, calculating the health risk value of the pollutants of concern in the soil: step five, calculating the acceptable risk level under the key exposure pathways of the pollutants of concern; step six, assessing the health risks of the pollutants of concern in the soil. Under the primary goal of ensuring the safe use of construction land, this method takes into account the principle of environmental equity, further reduces the uncertainty and conservatism of the assessment results, reduces unnecessary repairs, and achieves source reduction and carbon reduction.

The invention discloses a cutting blade service life testing device with a dust removal function, and relates to the technical field of cutting equipment.The cutting blade service life testing device comprises a machine body, a material storage box, a cutting machine, a cutting blade and a metal bar, the material storage box is placed on one side of the machine body, the cutting blade is fixedly connected to the bottom end of the cutting machine, the cutting machine is arranged in the machine body, and the metal bar is arranged in the machine body. Through the design of the service life testing assembly, the service life of the cutting blade can be effectively tested; through pressure value feedback of the pressure sensor on the S-shaped piece, the service life of the cutting blade can be indirectly known, the cutting quality is improved, and the flatness of a cutting surface is guaranteed; the service life of the cutting blade is tested by monitoring the counter-acting force borne by the cutting blade, and the abrasion condition of the cutting blade can be found in time; when the counter-acting force is too large, it is indicated that the cutting blade is seriously abraded at the moment, the cutting blade is replaced or maintained in time, the cutting blade which is excessively abraded is prevented from being used for cutting, and therefore the flatness of the cutting face is guaranteed.

This invention discloses a panoramic image stitching and restoration system and method based on feature matching, relating to the field of image processing technology. The system includes capturing images and collecting image capture information; numbering the images based on the collected image capture information; matching feature points of two adjacent numbered images to obtain image feature information; mapping the image numbers and image feature information to a Cartesian coordinate system in stages; setting a triple planning mechanism based on the staged mapping information; planning the image stitching order based on the triple planning mechanism; performing image stitching processing according to the planned image stitching order; and performing restoration processing on the stitched panoramic image. This achieves automated planning of the optimal image stitching order, reduces the accumulation of image stitching errors, and minimizes the impact of poor image stitching quality on subsequent image restoration effects.

The invention discloses an energy brick for energy supplementation in the lactation period of sows, and belongs to the technical field of energy supplements. The energy brick comprises the following components: grease, carbohydrate, a protein raw material, amino acid, an element supplement, vitamins and an additive. The energy brick for supplementing energy in the lactation period of the sows does not contain antibiotics and chemical synthetic drugs, does not cause adverse effects on growth of the sows, and does not indirectly affect human health; the energy brick for supplementing energy in the lactation period of the sows is formed in a brick form, so that the energy brick is convenient to store and transport, the sows mainly eat food in a licking mode, the feeding speed of the sows can be slowed down, the feeding frequency is reduced, and meanwhile, continuous supply of energy can be effectively guaranteed.

The invention relates to the technical field of nursing materials, and discloses eye washing liquid for relieving eye fatigue and a preparation method thereof.The eye washing liquid is prepared from trehalose, taurine, sodium gualenate, sodium hyaluronate, ergothioneine, vitamin B12, vitamin B6, xanthophyll, mint, a humectant, a bacteriostatic agent, a chelating agent, a pH regulator and deionized water. Through the synergistic effect of the first synergistic composition and the second synergistic composition, retina cell injury induced by blue light can be effectively repaired, the repairing effect is superior to that of simple addition of a single component, blue light oxidative injury is repaired through a multi-target synergistic mechanism, a three-layer structure of a tear film lipid layer, a water layer and a mucoprotein layer can be reconstructed, and the repairing effect is good. According to the present invention, the tearable film stability is significantly improved, the excellent protection and repair effect is provided, the compatibility of the components is good, the product stability is high, and the multiple effects of ocular surface cleaning, asthenopia relieving, conjunctival congestion reducing and blue light oxidation damage preventing are provided.

The invention relates to the field of building waterproof engineering, and discloses a composite waterproof material construction preparation process which comprises the following steps: S1, cleaning and treating a base surface to ensure that the base surface is dry and flat; s2, mixing the capillary crystalline waterproof coating with the cement mortar in proportion; s3, uniformly coating a base surface with the mixed capillary crystalline waterproof coating and cement mortar; s4, immediately paving a wet paving waterproof coiled material on the coated base surface; s5, the laid waterproof coiled material is compacted, and it is ensured that the waterproof coiled material is completely attached to the base plane; s6, seams and detail positions of the coiled material are sealed; and S7, initial maintenance is conducted. According to the method, the waterproof construction steps are simplified, the working procedures of multiple stages are integrated, for example, laying of the waterproof coating and laying of the coiled material are completed in continuous operation, and the construction time is effectively shortened. In addition, the accurate metering and mixing method is used, so that the preparation time of the materials is shortened, and the overall construction speed and efficiency are improved.

The invention discloses an anti-flying dust collection box for household dust removal equipment, and relates to the technical field of dust collection, the anti-flying dust collection box comprises a collection box body, multiple treatment mechanisms are arranged in the collection box body and on one side of the collection box body, and the multiple treatment mechanisms are used for limiting flying of dust in the collection box body; the collecting box body can be arranged in a limiting mode, the inner wall of the collecting box body can be automatically cleaned in the limiting process, the multi-processing mechanism can further smear an anti-static coating after cleaning and automatically dry the anti-static coating after smearing, and through mutual cooperation of an arc-shaped spraying block, a compression plate, a removing plate, a drying plate and a protection plate, the anti-static coating can be automatically removed, and the anti-static effect is improved. Dust can be prevented from flying during dust collection, the inner wall of the collection box body is cleaned, automatic drying is performed after cleaning, cleanliness of the inner wall of the collection box body is ensured, dust particles can become heavy by spraying water mist through an arc-shaped spraying block, the suspension capacity of dust in air is reduced, and the dust collection effect is improved. Therefore, dust is prevented from flying in the collecting box body.

The invention discloses a traditional Chinese medicine preparation composition based on cell repair and a preparation method thereof, and belongs to the field of biological medicine. The traditional Chinese medicine preparation composition is prepared from honey, astragalus membranaceus, lithospermum erythrorhizon, angelica sinensis, pogonatherum cnidii, herba epimedii, cynomorium songaricum, shaved cinnamon bark, freshwater sponge, camphor, cordyceps sinensis, saussurea involucrata, ginseng, rhodiola rosea, elecampane and rhizoma cimicifugae, and the preparation method comprises the steps of raw material preparation, coarse grinding, mixing, extraction, filtration, concentration, drying, fine grinding, preparation forming and other process treatment. The traditional Chinese medicine preparation can effectively resist skin aging, improve the skin quality, enable the skin to recover elasticity and luster, give full play to the effects of nourishing, oxidation resistance, blood circulation promotion and cell repair of traditional Chinese medicinal materials, deeply nourish the skin and achieve the effect of delaying senescence. The preparation method is simple and easy to implement and low in cost, and has a good application prospect.

The utility model discloses a subway direct current traction power supply equipment protection insulating terrace structure relates to subway power supply safety technical field, including insulating terrace surface, the surface of insulating terrace surface is coated with epoxy resin, and the bottom of insulating terrace surface is provided with bakelite insulating plate, and the below of bakelite insulating plate is sequentially provided with moisture-proof board and water passing board, the water passing board is located the below of moisture-proof board, and the bottom of water passing board is installed with frame board. The utility model discloses, when using, the bottom of bakelite insulating plate is provided with high temperature resistance layer and heat insulating layer, and high temperature resistance layer can make insulating board still keep good insulating property during high temperature use, and the setting of heat insulating layer insulates the heat above insulating board, prevents the moisture below moisture-proof board from heat influence equipment normal resistance electricity, and heat insulating layer can also prevent the equipment below moisture-proof board from rusting and rotting, prolongs the service life of equipment, reduces the possible of equipment repair.

The invention discloses a low-failure-rate cooling-water machine and a cooling-water machine early warning control system, and relates to the technical field of cooling-water machines, and the low-failure-rate cooling-water machine comprises a shell, a moisture absorption mechanism and a dehumidification mechanism; a first filter screen is mounted on the shell; the moisture absorption mechanism comprises an air guide frame, a driving shaft, a driving synchronous wheel, a synchronous belt, a driven synchronous wheel, a driven shaft, a silk screen box and a driving assembly, the silk screen box is made of a metal wire mesh, so that spherical calcium chloride in the silk screen box can be in contact with air, and the air filtered by the first filter screen is in contact with the spherical calcium chloride when penetrating through the air guide frame; moisture in the air is absorbed through the spherical calcium chloride and is prevented from entering the shell, so that the phenomenon that the water chiller breaks down due to the fact that the humidity is too large is avoided, the probability that the water chiller breaks down is reduced, and normal operation of the water chiller is guaranteed.

The present invention discloses a method for solving the problem of oil leakage during development of large-aperture plugging holes, comprising the following steps: preparing a production board, wherein the production board is provided with large holes with an aperture of ≥0.6 mm; performing a resin plugging operation on the non-windowed surface corresponding to the large hole in the production board to fill the large hole with resin ink, and the plugging depth does not exceed half of the depth of the large hole; pre-baking the production board to initially solidify the resin ink in the large hole; exposing both sides of the production board by using an exposure film, wherein the exposure film is provided with a light-transmitting point with an aperture larger than the large hole at the corresponding large hole to expose and solidify the ink in the large hole; performing development and baking treatments on the production board in sequence to completely solidify the resin ink in the large hole. In the method of the present invention, large-aperture plugging holes are treated separately, and the ink in the hole is solidified before development, thereby solving the problem of oil leakage on the pad during development.

The invention relates to the field of laser cladding surface strengthening and remanufacturing, and discloses a spheroidal graphite cast iron surface high-wear-resistance Fe-based fine-grain laser cladding layer and a preparation method thereof.The cladding layer is prepared on the surface of a spheroidal graphite cast iron base material through a laser cladding method, and cladding alloy powder is composed of reduced iron powder and ferrovanadium powder which are different in particle size according to a certain proportion; and the high-wear-resistance Fe-based fine-grain laser cladding layer on the surface of the nodular cast iron is prepared. The alloy powder for laser cladding is only composed of reduced iron powder and ferrovanadium powder, the formula is simple, manufacturing is easy, a large amount of in-situ self-generated VC is successfully obtained through reverse transition of graphite in a nodular cast iron base material, and a cladding layer is composed of martensite, a large amount of eutectic structures distributed between crystals and the in-situ self-generated VC. The surface hardness and wear resistance of the nodular cast iron base material can be greatly improved under the condition that the simple alloy powder is adopted, and the cost for repairing or modifying the surface defects of the iron casting is low.

The invention provides recombinant humanized collagen as well as an expression system and application thereof, and belongs to the technical field of active raw material development. The problems that in the prior art, an eukaryotic expression system is low in production efficiency, high in cost and insufficient in biological activity are solved, efficient secretion and soluble expression of the IV type collagen recombinant protein are achieved through the prokaryotic host cell, the production efficiency is remarkably improved, the cost is remarkably reduced, the prepared recombinant protein can effectively inhibit tyrosinase activity, and the recombinant protein can be used for preparing the recombinant protein. The composition provided by the invention can promote HSF cell growth, proliferation, differentiation and migration, improves the content of type I collagen, has obvious whitening, repairing and anti-wrinkle effects, and provides a new efficient active component for food, medicine and cosmetic industries.

This utility model relates to a stroller controller with a timed shutdown function, comprising a housing and a circuit board. The circuit board is installed inside the housing, and multiple buttons are located on the top of the housing. The circuit board includes a main control MCU module, a power supply module, a power switch and drive module, a button backlight display module, and a lighting control module. The main control MCU module is electrically connected to the power supply module, the power switch and drive module, the button backlight control module, and the lighting control module. The power supply module provides power to the circuit board. The power switch and drive module controls the stroller's power on / off and the stroller motor's movement. When the stroller remains inactive for the designated shutdown time, the main control MCU module sends a command to the power switch and drive module, which then shuts off the stroller. This effectively reduces the risk of spontaneous combustion, improves safety, significantly extends battery life, avoids damage from over-discharge, reduces the number of battery charging cycles, and improves energy efficiency.

The present invention discloses an erosion-resistant sealing structure of a regulating valve, characterized in that it comprises a valve body, a valve seat, a valve core, and a sleeve matched with the valve core, wherein a flow channel for medium to pass through is provided in the valve body, wherein the flow channel comprises an inflow section, a buffer section, a valve cavity section, and an outflow section, wherein the cross-sectional area of ​​the buffer section is larger than the cross-sectional areas of the inflow section, the valve cavity section, and the outflow section, wherein a valve seat is provided at the outlet of the valve cavity section, wherein the sleeve is provided in the buffer section, wherein the valve core is provided in the valve cavity section and the sleeve, wherein the bottom end of the valve core is located at the outlet of the valve cavity section, wherein the bottom end of the valve core and the outlet of the valve cavity section are contacted with the valve seat through the bottom end of the valve core to form a sealing surface, wherein an axial protrusion structure is provided at the bottom end of the valve core, wherein the axial protrusion structure protrudes from the bottom end of the valve core and is located in the valve seat and matches the valve seat. The present invention can effectively reduce the direct erosion effect of the medium on the sealing surface of the valve core, protect the integrity of the sealing surface of the valve core, and extend the service life of the valve core.

The invention discloses a manufacturing method of a medical transparent dressing, and relates to the technical field of medical instruments. S1, raw material preparation; s2, coating with an adhesive; s3, laser drilling is carried out; s4, hot-pressing and compounding; s5, surface modification; the laser drilling method comprises the following steps: 1, preparing materials; 2, equipment debugging; 3, programming and punching; and 4, processing after punching. The laser-beam drilling machine is used for manufacturing tiny holes in the adhesive layer of the medical transparent dressing to increase the permeation path of water vapor, the moisture permeability of the dressing is improved, the moisture permeability is remarkably improved on the premise that the strength and the stickiness of the dressing are guaranteed, the skin around a wound can be better breathed and moisturized, wound healing is promoted, and the wound healing rate is increased. No mechanical stress is applied to the material, deformation and damage of the material are avoided, the original performance and integrity of the medical acrylate adhesive layer can be kept, the consistency and stability of the dressing are guaranteed by accurately controlling the hole diameter and the hole distance, and the discomfort of a patient using the dressing is relieved.

The invention provides an electrolyte, a battery, an energy storage device and an energy storage system. The electrolyte provided by the embodiment of the invention comprises a pyridine additive and an isothiocyanate additive. When the electrolyte provided by the embodiment of the invention is applied to the battery, the battery can have relatively good high-temperature cycle performance.

The invention discloses efficient soft and smooth liquid foundation and a preparation method thereof. Comprising the following components in parts by weight: 10 to 30 parts of base oil, 5 to 15 parts of hydrated silicon, 1 to 10 parts of silicon dioxide, 0.1 to 1 part of tea tree essential oil, 1 to 5 parts of amino acid compound, 1 to 5 parts of marine collagen, 0.1 to 1 part of selenium yeast extract, 0.1 to 1 part of vitamin E, 0.5 to 5 parts of hyaluronic acid, 0.1 to 2 parts of salicylic acid, 0.1 to 3 parts of green tea extract, 0.1 to 3 parts of aloe extract, 1 to 5 parts of silica gel and 0.1 to 2 parts of pearl. 1-5 parts of animal cutin powder, 0.1-1 part of an antioxidant, 0.1-2 parts of a natural astringent, 2-10 parts of an emulsifier and the balance of deionized water; according to the efficient soft and smooth liquid foundation and the preparation method thereof, light components which do not block pores are selected, the moisturizing component is added to improve the moisturizing degree of the liquid foundation and reduce irritation to dry skin, and the animal cutin powder is added to improve lubricity and softness, so that the liquid foundation is soft and smooth in texture.

The invention belongs to the technical field of track engineering construction, and particularly relates to a ballast line pushing method track laying auxiliary construction device. Comprising rotating wheels, wheel shafts and steel rail supporting seats. The two rotating wheels support the wheel shaft; two steel rail supporting seats are hung below the wheel shaft; supporting legs extending outwards are arranged on the rotating wheels; the steel rail supporting seat comprises a seat body and two steel rail clamping blocks, and the two steel rail clamping blocks are assembled on the seat body in a face-to-face and sliding mode. When the two steel rail clamping blocks are close to each other, a clamping jaw formed by the two steel rail clamping blocks clamps a rail head of a steel rail; when the two steel rail clamping blocks are far away from each other, the rail head of the steel rail is released; a supporting mechanism is connected between the steel rail clamping block and the steel rail supporting base and used for limiting sliding of the steel rail clamping block. Compared with a traditional pushing method, the current situation that a large number of operators need to pull and guide the steel rail through a crowbar at the rail head end is ended, the construction problem that a large number of under-rail rubber mats can be knocked off when the steel rail is pulled and guided forwards is solved, and the construction quality of the pushing method is greatly improved.