8 results about "Micro explosion" patented technology

This invention relates to an atomic-level manufacturing method and apparatus for two-dimensional metal oxide nanosheets based on controllable micro-explosion, belonging to the field of functional nanomaterials and atomic-level precision manufacturing technology. This invention uses transition metal energetic complexes and energetic oxygen compounds as metal-oxygen integrated precursors. Under the constraint of an array-type nano-confined microcavity, controllable micro-explosions are synchronously triggered by nanosecond lasers to achieve nanosecond-level stoichiometric precision in the directional self-assembly of two-dimensional metal oxide nanosheets. The preparation cycle of this invention is reduced to less than 10 minutes, and the overall energy consumption is less than 1% of that of the traditional hydrothermal method. The product has excellent specific surface area, photocatalytic and cycling performance, and is 100% compatible with existing mass production lines. It is suitable for large-scale manufacturing in fields such as photocatalysis, energy storage, gas sensors, and environmental governance.

The application discloses a laser-dry ice jet combined rock breaking device and method, which comprises two mechanical arms (102, 103) and laser cutting heads (203) and dry ice jet spray guns (302) arranged on the two mechanical arms (102, 103) respectively. In the rock breaking operation, the two mechanical arms (102, 103) drive the laser cutting heads (203) and the dry ice jet spray guns (302) to break rocks in front and back respectively. The application utilizes dry ice and laser to break rocks, and greatly improves the rock breaking capacity. First, the laser breaks rocks through the thermal cracking principle, and at the same time, the temperature of the rocks is raised. Then, the dry ice jet impacts the heated area. On the one hand, the impact force contained in the dry ice jet itself can cause the rock mass to break and can also take away the molten rock. On the other hand, the dry ice contacts the high-temperature rock, rapidly sublimates, causes local rapid cooling, and the rock mass is damaged due to the uneven heating and inconsistent shrinkage. When the dry ice sublimates, its volume expands by more than 800 times, and the "micro-explosion" effect further breaks the rock.

The application relates to a two-dimensional van der Waals heterojunction one-step synchronous manufacturing method and device based on controllable micro-explosion, and belongs to the technical field of two-dimensional heterojunction devices and atomic-level precision manufacturing. The application adopts layered nanometer limited microcavities and multi-channel layered liquid injection technology, prepares corresponding material-energy integrated precursors for each layer of the heterojunction, synchronously triggers controllable micro-explosion through nanosecond laser, and realizes in-situ formation of the two-dimensional van der Waals heterojunction with no defects and clean interfaces between layers in one step, and the complex process of traditional layer-by-layer growth + transfer is completely abandoned. The application compresses the heterojunction preparation cycle from tens of hours to within 10 minutes, the interface flatness is Ra<0.3nm, 100% compatible with existing semiconductor production lines, and is suitable for large-scale manufacturing in the fields of advanced logic chips, quantum devices, radio frequency devices and the like.

The application belongs to the field of forging devices, in particular to a power fitting forming and machining forging device, which comprises a forging equipment; the top end of the forging equipment is provided with a bearing seat through bolt installation, the top end of the bearing seat is provided with a forging lower die, the front end of the forging lower die is provided with a front positioning block, the rear end of the front positioning block is fixedly connected with a front plug-in block, the front plug-in block is inserted into the inside of a front plug-in groove, both sides of the inner wall of the bearing seat are fixedly connected with sliding rails, the sliding rails are slidingly connected in the inside of sliding grooves, the sliding grooves are opened on both sides of the forging lower die, the rear side of the inner wall of the bearing seat is fixedly connected with a rear plug-in block, and the rear plug-in block is inserted into the inside of a rear plug-in groove; the spraying assembly realizes the function that liquid is sprayed from the nozzle to the outside of the workpiece in the process of the forging machine pressing forging, the liquid instantaneously vaporizes when contacting the hot workpiece embryo, the volume rapidly expands, local micro-explosion and shock wave are generated, the scale on the outside of the workpiece is rapidly cooled and shrunk to produce the effect of explosion and collapse.

The present application relates to a kind of hexagonal boron nitride atomic level manufacturing method and device based on controllable micro-explosion, belong to two-dimensional material and atomic level precision manufacturing technical field.The present application uses boron-nitrogen energetic compound as boron-nitrogen-energy integration precursor, under the restraint of array type nanometer limited microcavity, by nanosecond pulse quasi-molecular laser synchronous triggering controllable micro-explosion, combined with boron nitride metasomasis growth template and directional uniform electric field, realize nanosecond boron-nitrogen atom directional self-assembly, prepare high-quality single-layer / few-layer hexagonal boron nitride;And by millisecond laser annealing and high-purity nitrogen gas passivation repair lattice defect.The present application compresses the preparation cycle of single-chip 8 inch wafer hexagonal boron nitride to 10 minutes, and the comprehensive energy consumption is only 1% below traditional CVD process, can accurately control layer number and defect density, 100% compatible with existing semiconductor production line, suitable for the large-scale manufacturing of third-generation semiconductor devices, radio frequency devices, flexible electronics and other fields.

The application relates to a kind of fluorine-free green atomic level manufacturing method and device based on controllable micro-explosion MXenes, belong to two-dimensional energy storage material and atomic level precision manufacturing technical field.The application uses transition metal energetic complex and energetic carbon source compound as metal carbon-energy integrated precursor, under the restraint of array type nano-limit microcavity, realizes the directional self-assembly of nanosecond-level fluorine-free MXenes by synchronously triggering controllable micro-explosion through nanosecond laser, combined with directional template and uniform electric field, completely gives up traditional fluoride etching process.The preparation cycle of the application is compressed to 10 minutes or less, the comprehensive energy consumption is only 1% or less of the traditional process, the product is fluorine-free residue, the conductivity is greater than or equal to 10000S / m, 100% compatible with existing mass production line, suitable for large-scale manufacturing in the fields of supercapacitor, lithium ion battery, electromagnetic shielding and the like.

The application discloses a kind of core-shell structure manganese-based nano thermite and its preparation method, belong to energetic material technical field.The thermite is with micron aluminum powder as core, polyvinylidene fluoride and nanometer manganese oxide composite as shell layer, form dense spherical microstructure.Its preparation method includes: polyvinylidene fluoride is dissolved in solvent, micron aluminum powder and manganese oxide are added and are dispersed into precursor liquid by ultrasonic, by adjusting voltage, receiving distance and other parameters, using electrostatic spraying technology, core-shell structure microspheres are prepared by one-step method.The application effectively solves the agglomeration problem of nanometer manganese oxide using electrostatic spraying process, realizes the uniform coating of components in micron scale;Polyvinylidene fluoride shell layer serves as buffer and isolation layer, significantly reduces the mechanical sensitivity of material, greatly improves safety;At the same time, the structure effectively inhibits the micro-explosion and splashing phenomenon in the combustion process, realizes the stability, continuity and completeness of reaction.

This invention relates to an atomic-level manufacturing method and apparatus for two-dimensional transition metal chalcogenides based on controllable micro-explosions, belonging to the field of two-dimensional semiconductor materials and atomic-level precision manufacturing technology. This invention uses energetic transition metal complexes and energetic chalcogenides as integrated metal-energy precursors. Under the constraint of an array-type nano-confined microcavity, controllable micro-explosions are synchronously triggered by nanosecond lasers. Combined with directional templates and a uniform electric field, nanosecond-level stoichiometric precision is achieved in the directional self-assembly of two-dimensional transition metal chalcogenides. This invention compresses the fabrication cycle of a single 8-inch wafer to less than 10 minutes, with overall energy consumption less than 1% of traditional CVD processes. It allows for precise control of the number of layers and crystal orientation, and the carrier mobility of the prepared material is 100% compatible with existing semiconductor production lines, making it suitable for large-scale manufacturing in fields such as advanced logic chips, photodetectors, and energy storage devices.