12results about How to "Realize active regulation" patented technology

The application provides a design method of an adaptive milling cutter with adjustable curvature, and relates to the technical field of cutter design and manufacturing. The application defines a cutter radius and a fillet radius, constructs a transition curve from a peripheral edge part to an end edge bottom part through a Bezier curve, establishes a cutter rectangular coordinate system, determines a Bezier curve parameter equation based on control point coordinates, calculates a curvature and a change rate, and then finds a control parameter combination that makes a target function value maximum by discretizing the control point coordinates, calculating the target function value and optimizing and solving, so as to realize accurate regulation and control of the cutter curvature, optimize a blade edge geometric shape, and improve the adaptability and cutting performance of the cutter under complex machining conditions.

This invention provides an ion-doped calcium oxalate thermochemical heat storage material and its preparation method, the chemical formula of which is Ca. 1‑ x M x C2O4·H2O, where M is a dopant ion and x is the mole fraction of the dopant ion; M includes Mg 2+ Co 2+ Zn 2+ 、Sr 2+ One or more of the following. This invention regulates the lattice parameters, local coordination environment, defect state, and microstructure of calcium oxalate by doping with ions. While maintaining the original reversibility and cycle stability of the calcium oxalate system, it further optimizes its dehydration thermal storage temperature range, thermal response boundary, structural evolution behavior, and application compatibility materials, thereby improving the thermochemical thermal storage performance of calcium oxalate from the internal structural level.

This invention belongs to the field of optoelectronic technology, specifically relating to a method for fabricating a controllable crystallization micron-scale perovskite light-emitting device based on solution pretreatment. The method includes the following steps: Step 1: Obtaining a patterned microporous substrate; Step 2: Pre-wetting and seed layer construction; Step 3: Deposition of the main perovskite layer; Step 4: Slow-release controllable crystallization; The spin-coated wet film is placed in a vapor atmosphere of a good solvent for treatment, followed by thermal annealing to form a perovskite thin film within the patterned micropores; Step 5: Fabrication of a controllable crystallization micron-scale perovskite light-emitting device based on solution pretreatment. This invention, using pre-wetting, seed guidance, slow-release crystallization, and vapor annealing on a patterned microporous substrate, achieves precise control over the entire process of film nucleation and growth kinetics within the confined space of the micropores, thereby achieving high-quality, uniform fabrication of perovskite thin films within micron-scale micropores, and ultimately obtaining a high-performance, highly uniform microarray perovskite light-emitting device.

This invention relates to the field of polymer compound technology, specifically to an antibacterial food-grade plastic product for sealing and preservation and its preparation method, comprising an outer support layer and an inner antibacterial layer. The outer support layer is prepared by melt blending raw materials such as PBAT, PLA, and modified nano-calcium carbonate, wherein the mass ratio of PBAT to PLA is 90-100:10-20. The inner antibacterial layer is composed of nano-chitosan, tea polyphenols, essential oil microcapsules, glycerol, and agarose, composited on the surface of the outer support layer. The essential oil microcapsules have a core-shell structure, loading plant essential oils onto mesoporous silica as a carrier, and are coated with calcium alginate on the outer layer. The antibacterial food-grade plastic product prepared by this invention possesses long-lasting antibacterial properties, excellent mechanical properties, and heat-sealing strength, and has broad application prospects in the food packaging field.

The application is suitable for the field of heparin sodium crude product production, and provides a continuous drying and smashing integrated machine for heparin sodium crude product production, which comprises a secondary drying and smashing box, a drying and smashing cylinder assembly is arranged in the secondary drying and smashing box, the drying and smashing cylinder assembly is used for receiving heparin sodium wet solid introduced by a primary drying and smashing box; the drying and smashing cylinder assembly comprises a feeding pipe, a power shaft and a drying and smashing cylinder structure; the drying and smashing cylinder structure comprises a drying and smashing outer cylinder and at least two drying and smashing inner cylinders which are sequentially sleeved; the feeding pipe is communicated to the innermost drying and smashing inner cylinder of the at least two drying and smashing inner cylinders through a hose; the power shaft is used for synchronously driving the drying and smashing outer cylinder and the drying and smashing inner cylinders to rotate; the heparin sodium wet solid can be fully guaranteed to be in full contact with the heating body of the cylinder mesh in the sequentially graded smashing process, which is beneficial to linkage and cooperation of the two processes of drying and smashing, and reduces equipment investment cost and maintenance cost.

The utility model relates to the technical field of precision mould cooling, and disclose a kind of precision mould cooling device, including support block, firm crosspiece, lower mould and upper mould, the inside of support block is equipped with the installation cavity for storing coolant, sliding vertical pole is sealingly slidably installed in installation cavity, the top of sliding vertical pole passes through lower mould and is connected at the bottom of upper mould, water inlet pipe is fixedly installed on the left and right ends above the rear side inner wall of installation cavity respectively, the export end of two water inlet pipes is fixedly installed with micro circulating pump respectively, the other end of two micro circulating pumps is fixedly installed with electromagnetic flow regulating valve respectively, water outlet pipe is fixedly installed on the left and right ends below the rear side inner wall of installation cavity respectively, the export end of two water outlet pipes is fixedly installed with micro radiator respectively, extruding plate is fixedly installed on the bottom of sliding vertical pole, two water inlet pipes are all located above extruding plate, two water outlet pipes are all located below extruding plate.The utility model improves cooling effect.

This invention belongs to the technical field of additive manufacturing technology and discloses an in-situ oxygen-controlled composite scraper and a laser selective melting device equipped with the in-situ oxygen-controlled composite scraper. The bottom of the composite scraper includes a second scraper (16), an air jet unit, and a first scraper (18) arranged sequentially along the powder spreading direction. It has an internal gas storage chamber (15) and a powder drop chamber (19). The first scraper is used to evenly spread the powder raw material to form an initial powder layer. The air jet unit performs in-situ oxidation treatment on the surface of the initial powder layer by spraying oxygen-containing gas. The second scraper is used to level and compact the powder layer after the in-situ oxidation treatment. This invention improves the composition and structure of the composite scraper and utilizes the overall cooperation of the first scraper, the air jet unit, and the second scraper to generate a synergistic mechanism of powder spreading, in-situ oxidation, and secondary compaction, breaking through the process limitation that it is difficult to construct oxide dispersion-strengthened structures in-situ during additive manufacturing.

The application relates to a distributed photovoltaic output control method, device, equipment, medium and program product. The method comprises the following steps: collecting the running state data of a current time window of a transformer area and a distributed photovoltaic access point; calculating a transformer area safety budget value in a next time window; performing consistency constraint processing on the transformer area safety budget value to obtain a final safety budget value; obtaining a final predicted safety margin of a preset future time range according to a historical running state data sequence; determining a safety control parameter according to the relationship between the final predicted safety margin and a preset safety margin threshold; and generating a control instruction according to a preset safety budget allocation rule, the final safety budget value, the safety control parameter and the final predicted safety margin, and instructing a transformer area side terminal to control the output of a distributed photovoltaic unit in the transformer area based on the control instruction. The method can control the output of the distributed photovoltaic unit in a timely manner.

The utility model discloses a kind of water cooling liquid circulation mechanisms for pipe turning equipment, it is related to machining cooling technical field, including coolant storage tank, delivery pump and temperature regulating device, further including the shunt pipe being communicated with the delivery pump export;The end of the shunt pipe is equipped with multiple nozzles, and each nozzle is connected with shunt pipe by independent flow regulating valve;The valve core of the flow regulating valve is driven by stepper motor, and stepper motor receives signal from controller to adjust valve core opening degree;The liquid outlet direction of the nozzle is towards the working area of turning tool.The utility model provides a kind of water cooling liquid circulation mechanisms for pipe turning equipment, by flow regulating valve and stepper motor, and stepper motor adjusts valve core opening degree according to the signal of controller, to realize the accurate control of coolant flow;This design is suitable for the cooling demand under different working conditions, avoids the fluctuation of cooling effect due to unstable flow.

This invention relates to the field of insulator optimization technology, specifically providing an insulator optimization method based on dielectric constant gradient modulation of the spatial electric field. The method includes: establishing a geometric model of the GIS equipment's cavity, central conductor, grounding tank, and insulator working together in a two-dimensional axisymmetric coordinate system; constructing a gradient power function of the dielectric constant varying radially based on the insulator's geometric and material parameters; defining the electric field calculation region; solving the electric field equations using this function and preset boundary conditions to obtain potential and electric field intensity distribution data; optimizing the dielectric constant gradient parameters with electric field coverage and average tangential field strength as dual optimization objectives and maximum field strength along the surface as a constraint, thus completing the insulator optimization. This invention provides an insulator optimization method based on dielectric constant gradient modulation of the spatial electric field, which solves the problem that insulator optimization methods fail to actively modulate the spatial electric field, making it difficult to fundamentally eliminate insulation faults caused by metal particles.

This invention discloses a sintering control process for improving the lead and cadmium leaching rate of ceramic glazes, relating to the field of daily-use ceramic manufacturing technology. The process includes: determining the characteristic dielectric frequency of the glaze to be fired at its critical melting temperature, where the characteristic dielectric frequency corresponds to the frequency of synergistic polarization between lead or cadmium ions and glass network forging ions; heating the product to the critical melting temperature and holding it at that temperature, applying an intermittent pulsed electric field with a frequency equal to the characteristic dielectric frequency; after stopping the electric field, subjecting the glaze melt to temperature cycling treatment, applying periodic temperature fluctuations at a reference temperature; and after the last half-cycle of cooling, rapidly cooling through the glass transition temperature zone, followed by slow cooling to room temperature. This invention, through the synergistic control of characteristic frequency electric field writing, temperature cycling screening, and gradient rapid freezing, significantly reduces the lead and cadmium leaching rate of the glaze surface without changing the glaze formulation, increasing the maximum firing temperature, or extending the production cycle.

This invention discloses a high-carbon, low-silicon, shrinkage-resistant ductile iron. The chemical composition of the ductile iron, by weight percentage, is: C: 3.9%-3.95%, Si: 1.9%-2.1%, Mn: 0.5%-0.6%, P < 0.04%, S ≤ 0.02%, residual Mg: 0.04%-0.06%, residual RE < 0.03%, with the balance being Fe and unavoidable impurities. This invention, through high-carbon, low-silicon composition design and controlling the carbon-silicon ratio ≥ 1.85, significantly reduces the amount of primary graphite precipitation from the conventional 15%-20% to 3%-5%, achieving active control of the graphitization expansion sequence, delaying graphitization expansion to the later stage of solidification, and effectively improving the self-feeding effect.