48results about How to "Optimizing Control Parameters" patented technology

The application discloses an environmentally-friendly soft type yoga mat special silk-screen printing ink and a preparation method thereof, and belongs to the technical field of silk-screen printing inks. The ink comprises the following components in parts by weight: 30-50 parts of main body resin, 5-15 parts of environmentally-friendly pigment, 25-45 parts of environmentally-friendly composite solvent, 1-5 parts of adhesion promoter, 0.5-2 parts of rheological additive, 0.5-2 parts of scratch-resistant additive, and 2-8 parts of environmentally-friendly non-ortho phenyl plasticizer. The ink is extremely environmentally-friendly, meets international export standards, and is free of phthalate plasticizers, benzophenone solvents and heavy metal pigments in the whole process. Instead, the ink uses citric acid ester non-ortho phenyl plasticizers, benzene-free and ketone-free composite solvents and heavy metal-free organic pigments. The VOC content is far lower than the national limit value, the irritating odor is eliminated, and phthalate controlled substances are not detected. The ink meets the EU REACH regulation appendix XVII 51 / 52 and the EN71-3 toy safety standard, and completely solves the problem of limited export of traditional inks.

This invention provides a method for the artificial breeding of bullfrogs, including bullfrog selection, pairing, breeding, artificial spawning induction, artificial insemination, fertilized egg hatching, and tadpole rearing. This invention uses precise control of water temperature and quality in the breeding water to stimulate the gonadal development of the bullfrogs. It utilizes artificial spawning induction, insemination, fertilized egg hatching, and seedling rearing techniques to solve the problems of existing bullfrog germplasm degradation and difficulties in artificial breeding. By adding *Lactobacillus rhamnosus* to the feed, the mortality rate of bullfrogs is effectively reduced, the hatching rate of fertilized eggs is high, and the seedling growth rate is fast. This allows for a stable and continuous supply of high-quality bullfrog stock, meeting the effective demand for bullfrog seedlings throughout the year, and providing a technical foundation for the artificial breeding of bullfrogs.

The application discloses a kind of micro-fruit and vegetable fresh-keeping film preparation device and method, the device includes forming cylinder assembly, feeding coating component, dust generation and settlement component, air cooling device and film winding collection component;Forming cylinder assembly includes rotatable self-heating forming cylinder, feeding coating component is used to coat film-forming liquid on the left upper surface of self-heating forming cylinder, dust generation and settlement component is used to settle nano antibacterial catalyst dust on the film surface on self-heating forming cylinder;Air cooling device is used to cold blow setting on the film surface of the right lower part of self-heating forming cylinder, and film winding collection component is used to winding collection of the film formed.The device of the application utilizes the time window period of film not completely solidified to load nano catalytic functional powder, so that the powder is firmly attached to the film surface layer, the contact area of catalytic powder and oxygen is increased, the catalytic efficiency is improved, and the migration risk of catalytic powder is reduced.

The present application relates to the field of drilling engineering, and particularly relates to a kind of automatic spraying device and operating method of drill pipe thread grease, including self-locking screw lifting platform, rotating platform assembly, support assembly, telescopic rod assembly, spraying head and thread grease conveying pipe;Spraying head includes outer thread spraying assembly, push-pull cylinder A, piston rod A, push-pull cylinder B, piston rod B, inner thread spraying assembly and shell;The self-locking screw lifting platform realizes the lifting of spraying head;The rotating platform assembly realizes the rotation of spraying head;The telescopic rod assembly realizes the centring of spraying head;The spraying head is sprayed with thread grease to drill pipe joint.The beneficial effects of the present application are: automatic spraying thread grease is realized, intelligent drill pipe conductor ring is prevented from being contaminated, operation efficiency is improved and different specifications of drill pipe joint can be adapted.

The invention discloses ultra-microporous synergistic powder for tank mixing of pesticides as well as a preparation method and application of the ultra-microporous synergistic powder, and belongs to the technical field of functional auxiliary agents of the pesticides. The powder takes a natural porous material as a raw material, is prepared through raw material pretreatment, inert atmosphere high-temperature calcination activation, superfine grinding and homogeneous compounding, and contains 85-98% of superfine porous powder, 1-10% of a dispersing agent and 1-5% of a wetting penetrant. The key of application is that the barrel mixing sequence of diluting the pesticide and then adding the powder is adopted, the adding amount is 1%-5% of the total weight of the pesticide liquid, the powder can efficiently adsorb effective components of the pesticide, and the light stability and the lasting period of the pesticide are remarkably improved through the ultraviolet shielding effect and the adsorption-desorption slow release effect of the ultra-micropore structure. The product and the using method are specially designed for terminal users, operation is easy and convenient, and efficiency is remarkable.

The present application belongs to the technical field of material environmental adaptability testing, and particularly relates to a multi-field coupling environment simulation test device, which comprises a test box body, the test box body is divided into upper and lower installation spaces by a first partition plate; a sand blasting erosion assembly for simulating a sand blasting erosion environment, a saline-alkali corrosion assembly for simulating a saline-alkali corrosion environment and an ultraviolet aging assembly for simulating a sunlight ultraviolet environment are integrated in the installation spaces; the sand blasting erosion assembly is composed of a sand blasting head, a sand bin mechanism and a sand blasting pump; the sand bin mechanism comprises a sand bin, and a power vane driven by waste sand gravity is arranged on a waste sand falling path in the sand bin. The present application can realize integrated testing of three major environmental factors, ensure that the testing environment is highly consistent with the actual natural environment, improve testing efficiency and data reliability, and reduce equipment purchase and operation and maintenance costs.

This invention discloses a self-supporting, high-efficiency OER Mo / Ru-Ni / NF electrocatalyst and its preparation method, belonging to the field of electrocatalytic materials technology. Addressing the problems of insufficient exposure of active sites, poor conductivity, and high interfacial resistance due to the need for binders in existing catalysts, this invention uses nickel foam as a substrate and employs a two-step electrodeposition method combined with a calcination process to prepare a composite catalyst with a cauliflower-like porous structure. This material optimizes the electronic structure and oxygen intermediate adsorption energy by introducing strongly electron-deficient Mo centers to modify the Ru-Ni heterojunction interface; the unique self-supporting porous structure increases the active area, promoting mass transfer and electron transport. This catalyst requires no binder, exhibits low overpotential, a small Tafel slope, and excellent long-term stability, significantly improving the catalytic performance of the oxygen evolution reaction (OER) and making it suitable for high-efficiency water electrolysis for hydrogen production.

The application relates to a PID parameter optimization method for reducing motion control position deviation uncertainty, which comprises the following steps: firstly, determining the PID parameter optimization form and constraint conditions, and constructing an optimization objective function for the motion control position deviation uncertainty; secondly, establishing a Gaussian process regression proxy model between the PID parameters and the optimization objective function; thirdly, determining a next group of control parameters according to an expected enhancement acquisition function and measuring the corresponding optimization objective function value; finally, optimizing the PID parameters by using a double loop, wherein the inner loop uses randomly set initial control parameters to iteratively execute and obtain inner loop optimization control parameters, the outer loop is used for starting the inner loop optimization process multiple times, and finally, the final tuning parameter value is calculated by using non-convex scenario optimization; the selection of the optimization objective function of the application considers the average position deviation and the position deviation uncertainty, the optimization method adopts a double loop Bayesian optimization mode, and the method has the advantages of not being prone to local optimization and good consistency of optimization results under the action of uncertainty disturbance.

This invention discloses a coal gangue grouting and filling material with high rheological resistance and resistant to bleeding, its preparation method, and its application, relating to the field of mine filling material technology. The grouting and filling material, by mass percentage, comprises: 70%~75% coal gangue, 0.55%~2.3% composite rheology modifier, and the balance being water; wherein the composite rheology modifier includes an air-entraining agent and a dispersant, with a mass ratio of (90~99):(1~10); the air-entraining agent is a surface-active foaming material, and the dispersant is a phosphate additive. In its preparation, coal gangue is first mixed with water and stirred to obtain an initial slurry; then the air-entraining agent and dispersant are mixed to prepare the composite rheology modifier; finally, the composite rheology modifier is added to the initial slurry and stirred until homogeneous to obtain the grouting and filling material. This grouting and filling material uses coal gangue as the main raw material, has a simple preparation process, and possesses excellent fluidity, stability, and pumpability.

A slow-release composite fiber membrane for encapsulating passion fruit peel flavonoids by electrospinning and its preparation method are disclosed. The composite fiber membrane is prepared by coaxial electrospinning and consists of a core layer and a shell layer. The core layer is a carrier solution containing passion fruit peel flavonoids, and the shell layer is a biodegradable polymer solution. The composite fiber membrane has an encapsulation rate of ≥85% for passion fruit peel flavonoids and possesses antioxidant and slow-release properties. Chitosan, gelatin, zein, and β-cyclodextrin are used as spinning wall materials, and passion fruit peel flavonoids extracted by DES method are used as the functional core material. Efficient encapsulation, controlled release, and stabilization of flavonoids are achieved through coaxial electrospinning. This invention solves the problems of easy oxidation, photothermal instability, poor water solubility, and low bioavailability of flavonoids.

This invention belongs to the field of biological engineering technology, specifically relating to an MXene-based photothermal coupling composite film for bone repair and its preparation method; comprising MXene, type I collagen, and gelatin solution, obtained by sequential bridging and cross-linking with FeCl3 solution; wherein the mass ratio of MXene to type I collagen is (3-9):(1-7), and gelatin accounts for 3.6%-10.4% of the final composite material mass; the preparation method includes: ultrasonically dispersing MXene and mixing it with gelatin solution, then compounding it with type I collagen solution, vacuum filtering and drying to form a matrix film, and finally cross-linking it by impregnation with FeCl3 solution; this film has mechanical properties matching natural bone tissue, good biocompatibility, and high-efficiency photothermal conversion capability under near-infrared light irradiation, and is suitable for bone defect repair and photothermal synergistic therapy.

An integrated in-situ reaction and forming method for microwave-absorbing materials encapsulated in a microwave-transparent composite material is disclosed, relating to a method for preparing microwave-absorbing materials. The purpose of this invention is to solve the problems of existing methods in preparing microwave-absorbing composite structures, such as easy detachment of the microwave-absorbing functional layer, complex preparation processes, unstable bonding between the microwave-absorbing material and the composite matrix, and the inability to simultaneously meet the requirements of high temperature resistance, microwave transmission protection, microwave absorption attenuation, and structural load-bearing. The method includes: 1. Pretreatment of the substrate; 2. Preparation of a cobalt / manganese-ZIFs microwave-absorbing material precursor; 3. Laying up the microwave-absorbing material precursor; 4. Lamination and preform assembly; 5. Simultaneous in-situ reaction and isothermal hot pressing; 6. Cooling and demolding. This invention uses a high-temperature resistant microwave-transparent composite material thin plate as the outer substrate, enabling incident electromagnetic waves to pass through the substrate into the intermediate microwave-absorbing functional layer, while simultaneously providing protection and load-bearing for the microwave-absorbing layer, reducing problems such as microwave-absorbing powder shedding, moisture absorption, oxidation, and erosion wear.

The application discloses a nano-silicon dioxide doped PVDF-HFP radiation refrigeration packaging film and a preparation method thereof, and belongs to the technical field of flexible packaging materials and radiation refrigeration functional materials. The application is prepared by using polyvinylidene fluoride-hexafluoropropylene copolymer (PVDF-HFP) as a base body, using micrometer silicon dioxide (H-SiO2) covalently grafted and modified by hexadecyl trimethoxysilane as a functional filler, and through a solution blending-normal temperature volatilization induced phase separation one-step method. Through a specific modification system and process design, the application synchronously realizes the synergistic optimization of the thin film solar light reflection ability, the hydrophobic self-cleaning performance, the mechanical flexibility and the thermal stability. The preparation process of the application is green and simple, the raw material cost is low, and the application can be produced in a large scale and continuously. The prepared flexible film can be widely applied to fresh cold chain temperature control packaging, medicine constant temperature storage and transportation, and passive temperature control of outdoor products.

The invention relates to a preparation method of a high-stability chalcogenide modified Fe-N-C catalyst based on a confinement gas phase migration strategy, which comprises the following steps: S1, etching the Fe-N-C catalyst by using an etching gas decomposed from ammonium chloride at high temperature to obtain a defect-rich Fe-N-C catalyst; s2, the chalcogenide powder and the Fe-N-C catalyst rich in defects are mixed to be uniform, the mixture is placed in a vacuum and closed container, pyrolysis treatment is conducted at the temperature not lower than the temperature at which the chalcogenide powder is converted into chalcogenide steam, the chalcogenide modified Fe-N-C catalyst is obtained, and the chalcogenide powder is sulfur powder or selenium powder or tellurium powder. According to the method, a confinement gas phase migration strategy is adopted, a closed confinement reaction space is constructed, accurate preparation of the sulfur group modified Fe-N-C catalyst is achieved, and the problems that the stability of the Fe-N-C catalyst is insufficient and a volatile element doping process is difficult to control can be effectively solved.

The invention relates to the technical field of mineral extraction, particularly discloses a method for efficiently extracting barite single mineral in black mudstone rich in organic matters, and solves the technical problems that micron-sized barite in black mudstone cannot be efficiently extracted in the prior art, lattice destruction / isotope fractionation of barite is easily caused in the extraction process, the purity and the recovery rate are low and the like. The purity of the extracted barite single mineral is larger than or equal to 99%, the recovery rate of fine-fraction barite is larger than or equal to 90%, crystal lattices are complete and free of damage, isotope fractionation and component change are avoided, and the high-precision geochemical test requirement can be met; meanwhile, the method is suitable for various sedimentary rocks such as marine / continental black mudstone, shale and siliceous mudstone, and the applicability is wide.

The invention discloses a lithium-rich manganese-based positive electrode material compositely coated with an alpha-ZrP-conducting polymer, a preparation method of the lithium-rich manganese-based positive electrode material and application of a solid-state battery. According to the material, a bulk phase modified lithium-rich manganese-based material is used as a core, and a composite coating layer composed of a delaminated alpha-ZrP nanosheet and a conductive polymer is constructed on the surface of the lithium-rich manganese-based material. The composite coating layer can realize internal proton self-exchange response with the conductive polymer based on the solid acid characteristic of alpha-ZrP, and an overpass type rapid ion-electron dual-transmission channel is formed in the material body. Meanwhile, the coating layer is used as a compact physical and chemical barrier, and harmful side reactions between the positive electrode and the solid electrolyte are effectively blocked. When the prepared positive electrode material is applied to a solid-state battery, high first-circle coulombic efficiency and excellent cycling stability and rate capability are shown, and the two core problems of unstable interface and slow dynamics of a lithium-rich manganese-based material in the solid-state battery are effectively solved.

The invention discloses porous polycaprolactone microspheres for tissue filling and a preparation method of the porous polycaprolactone microspheres, and relates to the field of biomedical materials. The microsphere is composed of polycaprolactone, the diameter of the microsphere is 40-70 [mu] m, the dispersion coefficient of the microsphere is less than 5%, the porosity of the microsphere is 55-85%, and the surface of the microsphere is provided with a uniform open pore structure formed by tridecane. According to the preparation method, a microfluidic technology is adopted, a tridecane-containing polycaprolactone dichloromethane solution is taken as a dispersion phase, a polyvinyl alcohol aqueous solution is taken as a continuous phase, an oil-in-water emulsion is formed through microchannel shearing, and curing, washing and freeze-drying are performed to obtain the tridecane-containing polycaprolactone / polyvinyl alcohol composite material. The microspheres disclosed by the invention have excellent monodispersity and a porous structure, and can remarkably promote fibroblast proliferation and collagen secretion and induce moderate inflammatory response to activate tissue regeneration. The process is simple and controllable, and the obtained microspheres have injectability and a tissue repair promoting function and have application prospects in the field of soft tissue repair.

The invention provides a preparation process of a high-safety wearable flexible battery and an application of the high-safety wearable flexible battery in electronic equipment, a flexible positive electrode, a diaphragm, a modified gel electrolyte and a flexible negative electrode are laminated or wound in sequence and are loaded into a flexible battery shell, and the high-safety wearable flexible battery is prepared after packaging; the modified gel electrolyte comprises a blending matrix, a dynamic cross-linking agent, a nano filler, a lithium salt and a plasticizer, the blending matrix comprises a carboxylic acid betaine methacrylate-acrylamide copolymer and a polyvinylidene fluoride-perfluorohexyl ethyl acrylate copolymer, the dynamic cross-linking agent is guanidyl methacrylate, the nanofiller is povidone modified zirconium oxide, and the crosslinking agent is polydimethylsiloxane. The plasticizer is prepared from polyethylene glycol monomethyl ether and 1-butyl-3-methylimidazolium tetrafluoroborate. The modified gel electrolyte used in the invention has no liquid leakage risk, has lithium dendrite resistance, is stable at high temperature, has no combustion explosion hidden danger, and meets the wearable close-fitting use requirement.

According to the high-strength and high-plasticity FeNiAl eutectic high-entropy alloy and the preparation method thereof, through the collaborative design of B microalloying, homogenization, cross cold rolling deformation and medium-temperature heat treatment optimization, a fine and uniform eutectic lamellar structure and a high-density dislocation structure are formed in a plate, the brittleness brought by an as-cast coarse structure is effectively relieved, and the high-strength and high-plasticity FeNiAl eutectic high-entropy alloy is obtained. The tensile strength and the yield strength are remarkably improved, meanwhile, high ductility and fracture resistance are kept, and the performance anisotropy caused by the rolled texture is further weakened. The technological process is simple, parameters are easy to control, and the method is suitable for industrial amplification application and is suitable for high-temperature structural parts, molds, impact load components and other scenes with high requirements for comprehensive mechanical properties of materials.

The utility model provides a production system of a beam plate, which comprises a pre-processing area used for forming a steel bar frame of the beam plate; the beam plate pouring area is used for pouring concrete according to the steel bar frame to form a beam plate; the beam and slab curing area comprises a high-temperature steam curing area, a standard curing area and a tension grouting area.

This invention relates to the field of unmanned surface vessel (USV) technology, specifically to a USV control algorithm. Utilizing onboard sensors, the algorithm acquires real-time environmental information, establishes or updates the USV's environmental model, and employs an online learning algorithm to adjust the control strategy online. It monitors the USV's navigation status in real time and adjusts the controller's output based on deviations between feedback information and the desired state, enabling the USV to respond quickly to environmental changes and navigate stably. Multi-sensor information fusion technology is used to fuse information from different sensors, improving the accuracy and reliability of environmental perception. By fusing information from different sources, the USV's adaptability and robustness to complex environments are enhanced. Robust control strategies are employed in the control algorithm design, and the algorithm is verified and tested in a simulation environment. Through these steps, the USV can gradually adapt to new environments and improve control performance.

The application relates to the technical field of hydrogen production by water electrolysis of a proton exchange membrane, and discloses a preparation method of a multistage microstructure PEM water electrolysis hydrogen production membrane electrode, which comprises four core steps of micron-level array printing aluminum foil preparation, nanostructure framework construction, catalyst loading and hot-pressing transfer printing film formation. The micron-level grid printing structure is combined with a bismuth oxide nanostructure framework to form a multistage microstructure catalyst carrier, so that the specific surface area of the membrane electrode is greatly improved; the catalyst is loaded by adopting a magnetron sputtering method, the combination strength of the catalyst and the carrier is enhanced, the amount of noble metal is reduced, and meanwhile, the carrier and the proton exchange membrane are efficiently combined through a transfer printing process. The prepared membrane electrode has a voltage as low as 1.6-1.8 V under a current density of 1 A / cm, the specific surface area is 1.5-2 times that of a traditional ordered nanostructure membrane electrode, the catalyst utilization rate is higher than 95%, the voltage does not obviously increase after continuous work for 6000 hours, the preparation process is compatible with conventional equipment, and the industrialized mass production is feasible.

This application provides a silicon anode, its preparation method, and a sulfide solid-state battery, relating to the field of solid-state battery technology. A method for preparing a silicon anode involves mixing a silicon-based material, a conductive additive, a first polymer, and a first solvent to obtain an electrospinning precursor solution; electrospinning the precursor solution to form a fiber film on one side of a receiving substrate; sintering to obtain a silicon anode precursor; mixing a sulfide solid electrolyte, a second polymer, and a second solvent to obtain an electrolyte composite slurry; coating the slurry onto the surface of the silicon anode precursor to obtain a silicon anode; the total amount of the silicon-based material, conductive additive, and first polymer is 100%, with the silicon-based material comprising 60%–80%, the conductive additive 10%–20%, and the first polymer 10%–20%; the total amount of the sulfide solid electrolyte and the second polymer is 100%, with the sulfide solid electrolyte comprising 70%–90% and the second polymer 10%–30%. This application improves the ionic and electronic conductivity of the silicon anode and alleviates the volume expansion of the silicon anode.

The application relates to a screen surface determination method and device, equipment and a storage medium. The method comprises the following steps: periodically triggering a sampling operation according to a first preset time length during the process that a control sampling device moves above a target screen according to a current sampling route; in response to the triggering of each sampling operation, obtaining a target sampling position corresponding to each sampling operation on a target surface and a target sampling height corresponding to a vertical direction, the target sampling height being used for indicating the surface height of the target screen at the corresponding target sampling position, and the vertical direction being perpendicular to the target surface; and determining screen surface data corresponding to the target screen according to the target sampling position and the target sampling height corresponding to each sampling operation. The method can effectively avoid the deviation of a stylus caused by inaccurate surface data, and significantly improves the control accuracy of the stylus.

This invention discloses a method for preparing and applying a high-temperature stable resin-based friction material, relating to the field of automotive friction materials technology. The preparation method includes the following steps: mixing thermosetting resin binder, reinforcing fibers, metal fillers, friction modifiers, ceramic abrasives, and damping agents in a high-speed mixer to obtain a uniform mixture; placing the mixture in a mold and hot-pressing it to obtain friction material A; subjecting friction material A to post-curing heat treatment to completely cure the thermosetting resin binder to obtain friction material B; machining friction material B; and subjecting the machined friction material B to a high-temperature surface ablation treatment to obtain a high-temperature stable resin-based friction material. The friction material prepared by this invention has the following effects: significantly improved high-temperature stability, enhanced friction coefficient stability, significantly reduced wear on aluminum-ceramic brake discs, and excellent initial friction performance.

The invention discloses ultra-white quartz sand, raw materials for manufacturing the ultra-white quartz sand comprise quartz ore and a composite fluxing agent, raw materials for manufacturing the composite fluxing agent comprise sodium chloride powder and potassium chloride, the mass fraction of the quartz ore is 100 parts, and the mass fraction of the composite fluxing agent is 0.9-1.1 parts. The high-purity quartz ore and high-precision color sorting equipment are adopted, visible impurities and part of harmful impurities are preliminarily removed, a good foundation is laid for the subsequent process, the arranged composite pickling solution contains hydrochloric acid, concentrated sulfuric acid and oxalic acid, compared with a single pickling solution, different types of impurities can be removed in a targeted mode, and the production efficiency is improved. The removal rate of impurities such as iron and aluminum is obviously improved; and secondly, sodium chloride powder and potassium chloride are added as fluxing agents in the drying and calcining process, and two-stage calcining and inert gas protection are adopted, so that trace impurities can be further removed, the crystal structure of the quartz ore can be optimized, and the whiteness and purity of the product can be improved.

The invention discloses black phosphorus and saccharomycetes core-shell structure composite particles and application thereof as a water-based lubricating additive. After the black phosphorus-saccharomycetes core-shell structure composite particle powder prepared by the invention is stable, the aqueous dispersion of the black phosphorus-saccharomycetes core-shell structure composite particle powder has no macroscopic precipitate after standing for 60 days at room temperature, the stability is obviously superior to that of the reported black phosphorus-based dispersion, and the black phosphorus-saccharomycetes core-shell structure composite particle powder is suitable for long-term storage. Under the addition concentration of 0.5 wt%, the PB value of the water-based liquid can be remarkably increased, and the diameter and depth of a grinding crack can be greatly reduced. According to the present invention, the reproducible, non-toxic and easily-degradable yeast is adopted as the template, the deep eutectic solvent is adopted to replace the traditional N-methyl pyrrolidone and other toxic organic solvents to carry out black phosphorus stripping, the plant-derived genipin is adopted to replace the toxic chemical cross-linking agent, the used raw materials are green and environmentally friendly, the whole preparation process is performed at the normal temperature and the normal pressure, the energy consumption is low, and the safety is high. The preparation method disclosed by the invention has the advantages of clear steps, controllable parameters, easiness in large-scale production and extremely high industrial transformation potential.

The invention discloses a powerful external Chinese herbal medicine composition as well as a preparation method and application thereof, and belongs to the technical field of external Chinese herbal medicine preparations. The composition is formed by compounding active ingredients of traditional Chinese medicinal materials and a matrix of an external preparation, the formula compatibility is reasonable, medicinal materials such as oxalis corymbosa, herba violae, dandelion, paris polyphylla, radix tinosporae and pseudo-ginseng are selected, and the composition has the effects of clearing away heat and toxic materials, promoting blood circulation to remove blood stasis, relieving swelling and pain, removing slough and promoting tissue regeneration, and inhibiting bacteria and repairing. The process of water extraction, concentration, homogenization and sterile filling is adopted, operation is easy and convenient, the method is suitable for industrial production, and external dosage forms such as gel and cream can be prepared. The product has a good effect on diseases such as traumatic injuries, bruise and induration, burns and scalds, sores and ulcers, pyogenic infections and the like, the gel is refreshing and breathable, the gel is suitable for seepage wounds and used in summer, the cream is moist and slow-release, the cream is suitable for deep bruise and dry wounds and used in winter, the applicability is wide, the drug property is mild, and the good clinical practicability is achieved.

This invention relates to the technical field of temperature control in thin plate welding, and discloses a temperature gradient control system and method for thin plate welding. The control method, applied to a welding temperature gradient control device, specifically includes the following steps: S11: Obtaining the material, thickness, and geometric features of the target weld of the thin plate to be welded; loading a welding process parameter database based on the geometric features; the database includes recommended welding speeds, heat input power, and matching initial temperature gradient parameters for different plate thicknesses and materials. This invention achieves high-precision, real-time shaping of the spatial temperature gradient during thin plate welding by introducing independent closed-loop control of the core molten pool zone, heat-affected zone, and peripheral low-temperature zone, combined with dynamic fusion calibration of multi-source temperature data. Simultaneously, the feedforward-feedback composite control welding robot, deeply coupled with the welding path, can predictively adjust the temperature field, ensuring gradient stability throughout the entire welding path.