13 results about "Micro explosion" patented technology

The utility model discloses a waterless cleaning system for locomotive accessories, which comprises a cleaning room, a turnover device, a dry ice making device, a dry ice spraying device, a mobile robot and an oil mist purifying device, and the turnover device is used for fixing and turning over the locomotive accessories to be cleaned; the dry ice spraying device is used for mixing granular dry ice and compressed air and spraying the mixture to the locomotive accessories to be cleaned so as to clean the locomotive accessories. The mobile robot is used for clamping and moving the dry ice spraying device so that the dry ice spraying device can conduct multi-angle cleaning on the locomotive accessories. A dry ice cleaning technology is adopted, granular dry ice and compressed air are mixed to generate high-speed airflow for cleaning, the dry ice is converted into a gas state from a solid state, micro-explosive impact force is directly generated, and dirt on the surfaces of locomotive accessories is crushed and removed. In the cleaning process, dry ice is instantly sublimated into gaseous carbon dioxide to be volatilized into the air, no residual matter exists, and secondary pollution cannot be generated.

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.

The invention relates to electrostatic chuck cleaning equipment which comprises a preheating platform, a dry ice generation module, a gas-solid mixing acceleration device and an ionized gas generation device. Wherein the dry ice generation module is used for solidifying liquid COs into dry ice particles; an included angle of 10-45 degrees is formed between a spraying shaft of the gas-solid mixing acceleration device and the plane of the electrostatic chuck, and the mixture of the dry ice particles and the compressed air is accelerated to supersonic speed; a spraying shaft of the ionized gas generating device is parallel to the plane of the electrostatic chuck, the high-frequency and high-voltage electrode ionizes high-purity argon, and the output ion density is larger than or equal to 10 ions / cm. The invention further provides a cleaning method of the electrostatic chuck cleaning equipment, particles on the surface of an electrostatic chuck are cleaned and removed through the synergistic effect of combination of dry ice particle micro-explosion shock waves and particle charges neutralized by ionization argon flow, and the electrostatic chuck cleaning equipment has the beneficial effects that the removal rate is high, the flatness of the surface after cleaning is good, and the failure rate of repeated use is low.

The invention discloses a protective garment special for underground high-temperature operation and a using method thereof, and belongs to the technical field of protective garments for underground high-temperature environment operation. The protective garment comprises a protective garment body, the protective garment body is of an up-down connected structure, a plurality of miniature anti-explosion refrigerating machines and a plurality of miniature anti-explosion exhaust fans are arranged on the back face of the upper garment portion of the protective garment body, and a gear adjusting controller is arranged on the front face of the upper garment portion of the protective garment body. The gear adjusting controller is electrically connected with all the micro anti-explosion refrigerating machines and all the micro anti-explosion exhaust fans. A worker can utilize the gear adjusting controller to adjust the operation gears of the micro anti-explosion refrigerating machine and the micro anti-explosion exhaust fan according to the self-body feeling condition, so that air circulation in the protective clothing is ensured, cooling is achieved, the symptoms such as dysphoria and dizziness caused by body temperature rise of the worker are avoided, and the safety of the worker is improved. And life health of underground high-temperature operating personnel can be ensured, and safe production can be realized.

The invention belongs to the technical field of inorganic nano materials, and particularly relates to a large-scale preparation method of a Ti3AlC2-based MXene nano roll. The method comprises the following steps: by taking bottom mud obtained after etching two-dimensional Ti3AlC2 by HF as a raw material, stirring for hydrolysis reaction under the dispersion of a solvent system to form a precursor; adding ammonia water into the precursor, and carrying out dehydration condensation to form an MXene / SiO2 composite material; hF is added into the MXene / SiO2 composite material, ultrasonic treatment is carried out, so that an MXene sheet layer is curled, and the Ti3AlC2-based MXene nanometer roll is obtained. Through the innovative process of weakening interlayer acting force through SiO2 intercalation and directionally driving curling through HF micro-explosion, the core problems that interlayer stripping is difficult, the structure is uncontrollable and oxidation stability is poor in MXene nano-roll preparation are solved, and meanwhile the method has the advantages of being high in yield, low in energy consumption and environmentally friendly.

The invention relates to the technical field of chemical fiber, in particular to microcapsule-doped chemical fiber spinning fiber and a preparation method thereof.The preparation method of the microcapsule-doped chemical fiber spinning fiber comprises the following steps that flame-retardant microcapsules and dried polyester chips are mixed, spinning, cooling curing and monofilament bundling are conducted through a single-screw melt spinning machine, and the microcapsule-doped chemical fiber spinning fiber is obtained. Oiling and drafting to obtain the microcapsule doped chemical fiber spinning fiber. The flame-retardant microcapsules are added, ammonium polyphosphate in the core material is used as a gas source or an acid source during combustion, chitosan is used as a carbon source, and an amino zirconium organic framework is used as a catalytic charring agent to synergistically form a compact and stable expanded carbon layer, so that the heat insulation and oxygen insulation effects are improved, and the flame retardance of the fiber is improved; the micro gas contained in the microcapsule or the pressure generated by vaporization of the core material can be expanded in the screw extrusion filament outlet process, micro explosion is formed in the filament outlet process, a microporous filament structure is formed, the soft, light, breathable and high-hygroscopicity effects are achieved, and good application prospects are achieved.