12results about How to "Change distribution" patented technology

This invention provides a lightweight wear-resistant steel alloyed with Nb, V, and Ti, its preparation method, and its applications, belonging to the technical field of lightweight wear-resistant steel. The lightweight wear-resistant steel of this invention, by mass percentage, comprises: Mn 23.0–26.0%, Al 7.5–8.3%, C 1.12–1.25%, Si 0.20–0.25%, Nb 0.05–0.20%, Ti 0.05–0.15%, V 0.05–0.10%, P ≤ 0.03%, S ≤ 0.01%, and the balance Fe. Experimental results show that the lightweight wear-resistant steel provided by this invention has a density ≤ 7.01 g / cm³. 3 Yield strength is 565–654 MPa, tensile strength is 901–985 MPa, elongation is 50.3–58.7%, and KV at -40℃. 2 The impact energy is 97-134J, and the wear resistance is improved by more than 30% with high impact energy.

The application discloses a creep-resistant die-casting rare earth magnesium alloy with high strength and high fluidity, and a preparation method and application thereof. The application belongs to the field of die-casting magnesium alloys. The magnesium alloy comprises, in percentage by mass, Al: 4.8-7.2%, La: 3.0-4.2%, Sm: 1.2-2.0%, Y: 0.4-1.2%, Mn: 0.1-0.6%, Te: 0.01-0.1%, Bi: 0.01-0.5%, and the balance of Mg and inevitable impurity elements. The application significantly refines the structure of the magnesium alloy by optimizing the alloy composition, changes the composition, distribution and morphology of intermetallic compounds in the alloy, simultaneously generates Al-Te phases stable at high temperatures, improves the mechanical properties and creep resistance of the magnesium alloy, and further improves the die-casting fluidity of the magnesium alloy, so as to meet the requirements of large-scale integrated design automobile parts.

The present application belongs to the technical field of turnover steel dam gate, and particularly relates to a turnover steel dam gate, which aims to solve the technical problem that when a relatively high water surge impacts on the gate, the impact force will directly act on the dam body, which is easy to cause damage to the dam body, and comprises a steel dam gate assembly, a hydraulic cylinder assembly, a buffer connecting assembly and a displacement adjusting assembly, the steel dam gate is connected with the hydraulic cylinder assembly, the hydraulic cylinder assembly is connected with the buffer connecting assembly, the buffer connecting assembly is connected with the displacement adjusting assembly, and the displacement adjusting assembly is connected with the steel dam gate assembly; in order to reduce the effect of the water surge on the concrete base, when the water surge impacts on the steel dam gate, the force is then transmitted to the concrete base through the hydraulic cylinder assembly, the absorption of the force is then realized through the inner end buffer spring between the hinged sliding block and the extruded sliding block, the impact force on the concrete base is then reduced, and the protection of the concrete base is then realized.

The application relates to the technical field of battery materials, and discloses a sodium-philic carbon-based material, a negative-electrode-free current collector, a preparation method of the sodium-philic carbon-based material and a sodium metal battery. The preparation method of the sodium-philic carbon-based material comprises the following steps: providing a mixed solution, wherein the mixed solution comprises carbon source powder, an iron source and a solvent; fully reacting the mixed solution in a protective atmosphere at 160-240 DEG C; obtaining a carbon-loaded sodium-philic material after solid-liquid separation; fully calcining the carbon-loaded sodium-philic material in an inert atmosphere at 700-900 DEG C to obtain a porous sodium-philic precursor; and treating the porous sodium-philic precursor in a reaction gas atmosphere at 400-700 DEG C for 1-3 hours to obtain the sodium-philic carbon-based material. The reaction gas atmosphere is an ammonia gas and inert gas mixed atmosphere or an ammonia gas atmosphere. The material is coated on the surface of the negative-electrode-free sodium metal battery current collector, and can enhance the electrochemical performance of the battery.

The application provides a transistor interface state model optimization method, a computing device and a storage medium. The method comprises the following steps: constructing a transistor interface state model; if the defect type is an acceptor type defect; calculating the ionized acceptor type interface state defect concentration according to an acceptor type ionization probability model; adding the acceptor type interface state defect concentration to a Poisson equation to obtain an acceptor type Poisson equation; replacing the Poisson equation with the acceptor type Poisson equation to obtain an acceptor type transistor interface state optimization model; if the defect type is a donor type defect; calculating the ionized donor type interface state defect concentration according to a donor type ionization probability model; adding the donor type interface state defect concentration to the Poisson equation to obtain a donor type Poisson equation; replacing the Poisson equation with the donor type Poisson equation to obtain a donor type transistor interface state optimization model. The beneficial effect of the scheme is that the transistor interface state model is optimized, and the base current simulation result obtained by using the optimization model is more accurate.

The utility model discloses a solid particle flow control device and a heater. The flow control device (100) comprises: a valve body (10) having a feed channel (12) and a discharge channel (13), where the feed channel (12) is a downward channel for causing solid particles to flow downward into the valve body (10) under the action of gravity; the discharging channel (13) is located on the lower portion of the valve body (10) and used for guiding solid particles entering the valve body (10) through the feeding channel (12) to flow out of the valve body (10) downwards under the action of gravity. And the valve core (20) is fixed on the valve body (10) through a valve seat (30), is in transmission connection with a driving mechanism, and comprises an end part (21) of which the cross sectional area is gradually changed, and when the valve core (20) is driven, the end part (21) does linear motion in and out of the discharging channel (13) so as to change the depth of entering the discharging channel (13), and meanwhile, the end part (21) rotates automatically so as to stir the solid particles, so that the flow of the solid particles flowing out of the valve body (10) is changed.

The application discloses a kind of experimental apparatus of synthesizing different component natural gas hydrate, it is related to natural gas hydrate synthesis technical field, it includes: hydrate generation unit, separable material adding unit, ball valve pressure maintaining unit and control and detection unit, hydrate generation unit includes hydrate generation bucket, the hydrate generation bucket is used to reaction generation with metal tracer particle hydrate;Separable material adding unit is used to add metal tracer particle in hydrate reaction process;Ball valve pressure maintaining unit is arranged between the material adding unit and the hydrate generation unit, for controlling the intercommunication and closure of both;Control and detection unit is used to control motor in the material adding unit moves according to instruction, and is used to receive, process and show the data of various sensors of the hydrate generation unit.The application can be synthesized while hydrate, can be added according to research needs even or layer by layer suitable metal tracer particle.

The invention belongs to the field of soil pollution treatment, and relates to a method for jointly relieving toxicity of microplastics to a soil-plant system based on a nitrification inhibitor-carbon nanomaterial. The method comprises the following steps: applying a nitrification inhibitor and a carbon nanomaterial to plant planting soil; the nitrification inhibitor is DMPP, and the carbon nanomaterial is one or more of a multi-walled carbon nanotube and a nanodiamond. The method can technically slow down microplastic pollution, improve soil health and guarantee quality safety of agricultural products.

This invention relates to a six-degree-of-freedom (6DOF) measurement system and method. The 6DOF measurement system includes a camera, a prism, and a target; the optical axis of the prism is coaxial with the line of sight of the camera; the target is mounted on the target and positioned within the combined field of view of the camera and prism; the target includes a mounting base and a main shaft mounted on the mounting base, with a fixing plate on the main shaft; an annular sleeve is fixedly connected to the fixing plate, and a motor is mounted outside the annular sleeve; the main shaft of the motor passes through the annular sleeve and is connected to a transmission component, which has rollers connected to a slider. Driven by the motor, the slider can slide radially from the center to the edge of the annular sleeve via the rollers; a main marker is mounted on the top of the main shaft, and an auxiliary marker is mounted on the top of the slider. Compared with the prior art, this invention can achieve six-degree-of-freedom pose measurement of a target under uncalibrated conditions, improving the adaptability of the measurement system.

The application provides a high-toughness ferrite-pearlite type non-quenched and tempered steel and a manufacturing method thereof, and the composition of the steel is as follows: C 0.35-0.42%, Si 0.35-0.45%, Mn 1.25-1.65%, P ≤0.010%, S 0.025-0.050%, Cr 0.10-0.30%, Nb 0.02-0.05%, Mo 0.010-0.050%, Ni 0.10-0.25%, Al 0.025-0.045%, V 0.10-0.30%, Cu ≤0.10%, Ti 0.010-0.040%, [N] 120-160ppm, [H] ≤1.0ppm, T.O ≤10ppm; the rest is Fe and inevitable impurity elements; the steel is combined with a controlled rolling and controlled cooling process, the ferrite content is increased, the strength and toughness are improved, the strength and toughness are matched, and the cutting performance is improved.

The application relates to a magnetic conversion type flexible temporary fastener which comprises a shell, a switch assembly, a magnetic control assembly and a clamping assembly; the magnetic conversion type flexible temporary fastener introduces a magnetic control assembly, the relative movement of a magnet and a shielding frame changes the spatial magnetic field generated by the magnet, so that the magnetic control assembly generates magnetic attraction to an abutting table, and then a top rod can be firmly inserted into a pawl to maintain the fastening effect on an aircraft panel wall, which is favorable for simplifying the assembly process and improving the stability and safety of aircraft assembly; the magnetic focusing effect of a magnetic conductive cover can further change the distribution of the spatial magnetic field, so as to accurately control the magnetic attraction of the magnetic control assembly to the abutting table; the temporary fastener has a clever structure design, stable clamping state and simple assembly.

The application discloses a display panel and a display device. The display panel comprises a first substrate, a pixel layer and a second substrate which are sequentially stacked, and a plurality of pixel units are arranged in the pixel layer. The pixel unit comprises an isolation wall, a first electrode, a second electrode and a stretchable capsule. The stretchable capsule is filled with a second solution. The second solution contains a colorant and an ion intercalation material. By accurately controlling the voltage and current applied by the electrode, the degree of electrochemical reaction can be adjusted, and the dynamic regulation of the expansion and contraction state of the stretchable capsule can be realized. Since the colorant cannot pass through the capsule wall of the stretchable capsule, the volume change of the stretchable capsule can directly change the distribution of the colorant, so as to change the optical reflectivity or color display effect of the pixel unit. By adjusting the expansion degree of the stretchable capsule, the space proportion of the colorant in the accommodation cavity can be accurately controlled, and the fine regulation of the gray scale level can be realized, so that the pixel unit presents multiple gray scales.