8results about How to "Accelerated exclusion" patented technology

The utility model discloses an on-line closed sampling device for a High-K precursor material, which relates to the technical field of semiconductor materials, and comprises a main sampling pipeline, and further comprises a main sampling pipeline, a sampling bottle, a material collecting device, a material collecting device and a material collecting device, the nitrogen pipeline is connected with the main sampling pipeline through a nitrogen branch pipe; the vacuum pipeline is connected with the main sampling pipeline through a vacuum branch pipe; the plurality of valves are sequentially arranged according to numbers and are configured to realize vacuumizing, nitrogen replacement, material filling and sampling operations through the switch combination; according to the device disclosed by the utility model, a negative pressure sampling mode is combined with nitrogen replacement, so that air and moisture in a sampling container and a pipeline can be quickly removed before sampling, a sampling environment is ensured to meet the water-free and oxygen-free requirements, and a high-K precursor material is effectively prevented from going bad or causing safety accidents due to contact with the moisture and oxygen in the air.

This invention relates to a method for preparing modified fly ash, its products, and their applications. The preparation method includes: sequentially subjecting fly ash to a first grading and screening, magnetic separation, a second grading and screening, and ultrasonic modification to obtain the modified fly ash. The modified fly ash of this invention has a low heavy metal content, reducing pollution. This invention also provides a soil conditioner, which includes the modified fly ash. The mixing of modified fly ash with a saline-alkali soil mortar layer can completely disrupt the dense structure of the mortar layer, increase the soil's permeability and aeration, improve the downward migration channels of saline-alkali ions, and thus accelerate the removal of saline-alkali ions. This method utilizes a large amount of solid waste and achieves the improvement of saline-alkali soil, possessing significant economic and social value.

This invention relates to a method for preparing photocurable high thermal conductivity aluminum nitride ceramic irregular parts based on the synergistic regulation of residual carbon and yttrium fluoride, comprising the following steps: S1, preparing a photocurable resin system; S2, adding aluminum nitride powder, yttrium fluoride, and a dispersant to the photocurable resin system to obtain a composite ceramic slurry suitable for photocurable 3D printing; S3, curing layer by layer to obtain an aluminum nitride ceramic irregular part green body; S4, placing the ceramic green body obtained in step S3 in an atmosphere sintering furnace for two-step debinding; S5, taking a small sample of the debinded sample obtained in step S4 for residual carbon content calibration; S6, sintering to obtain the aluminum nitride ceramic irregular part. This invention precisely controls the residual carbon content after debinding by designing photocurable monomer combinations with specific functionalities, and simultaneously uses yttrium fluoride sintering aid to achieve a triple effect of densification, removal of lattice oxygen, and absence of liquid phase residue. The residual carbon regulation and the synergistic effect of the aid complement each other to jointly achieve the preparation of high thermal conductivity aluminum nitride ceramic irregular parts.

The utility model relates to the technical field of electric power engineering, in particular to an insulating operating rod with a cluster parachute protection function. The utility model relates to an insulating operating rod with a cluster parachute protection function, which comprises a first operating rod and a second operating rod, the top of the first operating rod is provided with an operating head, the middle part is provided with an insulating umbrella group, and the bottom is provided with a first detachable connection structure. A second detachable connecting structure is arranged at the top of the second operating rod, and a grip is arranged at the bottom of the second operating rod; the first operating rod and the second operating rod are detachably connected through the first detachable connecting structure and the second detachable connecting structure. According to the utility model, the insulating performance is obviously improved by arranging the insulating umbrella group, the use flexibility is enhanced by detachable connection, the operation head and the grip are matched to ensure accurate and stable operation and anti-skid insulation, and the main body of the rod body is made of epoxy glass fiber reinforced plastic to ensure firmness and durability; the whole device has outstanding advantages in the aspects of guaranteeing the safety of operators, improving the power operation efficiency, reducing the use cost and the like.

The utility model discloses an anti-skidding swimming pool ground mat which comprises a base plate layer, an anti-skidding layer is integrally formed on the base plate layer, drainage grooves are formed in the anti-skidding layer and are of a radioactive structure, and anti-skidding particles are densely distributed on the upper surface of the anti-skidding layer and used for improving the anti-skidding effect of the anti-skidding layer. The base plate layer is of a hexagonal honeycomb structure and is evenly distributed, the laying layer is arranged at the bottom of the base plate layer, and the multiple sets of anti-displacement suction cups are evenly distributed at the bottom of the laying layer and used for improving the fastening effect with the ground and preventing slipping. The utility model relates to the technical field of safety protection of swimming pools, and the ground mat for the swimming pools can provide good anti-skid performance and drainage performance and can provide stable support, so that the using effect is improved.

The application relates to a structure for preventing scrap accumulation of a numerical control rotary table, which comprises a sealing cover plate, a second sealing element and a sealing flange coaxially arranged; a gas cavity is enclosed between the sealing cover plate and the sealing flange. The application can reduce downtime cleaning time, improve machining efficiency, effectively reduce labor cost, and prolong the service life of the numerical control five-axis rotary table.

The utility model discloses a multifunctional pneumatic extinguisher which comprises a machine body, a using assembly is arranged on the machine body, the using assembly comprises a motor, an air pipe, a rotating blade, a water tank and a top handle, the motor is fixedly installed on the machine body, the air pipe is connected to one end of the machine body, the rotating blade is connected to the output end of the motor, and the water tank is connected to the top handle. The water tank is arranged at one end of the machine body, the top handle is arranged at the top of the machine body, an adjusting assembly is arranged on the water tank and comprises a water inlet pipe, a rotating ring and a rotating rod, the water inlet pipe is installed at the top of the water tank, the rotating ring is rotationally connected to the water inlet pipe, and the rotating rod is installed on the rotating ring; the technical problem that when a multifunctional pneumatic extinguisher mentioned in the background technology conducts fire extinguishing work, a fire source is usually extinguished through pure wind power is solved.

The invention provides a spatial query method and device for an object in a large-scale real-time combat scene, computing equipment and a computer readable storage medium. According to the method, a tight grid layer and a loose grid layer which are uniformly distributed are superposed in a game scene; and positioning the game object into the cells of the specific loose grid layer by using the mapping relationship between the world coordinates and the grid sizes. A mechanism combining coarse screening and accurate measurement is introduced into a specific query process, and most of objects irrelevant to the space are rapidly eliminated; and then, only carrying out accurate geometric collision or distance judgment on the screened candidate objects so as to eliminate misjudgment objects generated by grid boundary division. According to the scheme, the number of objects participating in accurate calculation is greatly reduced through coarse-grained screening of the grid layer, and in combination with an optimized index calculation mode, CPU resource consumption is effectively reduced, and the real-time performance and accuracy of spatial query are remarkably improved.