14results about How to "Complete shape" patented technology

The utility model relates to a bulk material sample forming combined die, and belongs to the technical field of quality inspection in the metallurgical industry. Comprising a cylindrical female die with a hollow inner cavity, a pressing head is inserted into the inner cavity of the female die from the inlet end of the female die, and the outlet end of the female die is detachably connected with a die cushion; chamfered edges are respectively arranged at two ends of the inner wall of the female die; after pressing is completed, the die cushion is replaced with a demolding device, the demolding device is of a cylindrical structure with a hollow inner cavity, and after replacement, the demolding device is communicated with the inner cavity of the female die; the die cushion comprises a base and a protruding part which are connected with each other, and the protruding part is inserted into an inner cavity of the female die. The pressure head comprises a chassis and a cylinder which are connected with each other; the cylinder is inserted into the inner cavity of the female die; lubricating layers are arranged on the inner wall of the female die, the outer wall of the protruding part and the outer wall of the cylinder. According to the utility model, the bulk material is pressed into a large sample block by utilizing the plasticity, high elongation rate and percentage reduction of area of the bulk material, so that a sample preparation component sample can be conveniently drilled, and specific component analysis can be carried out.

The application discloses a method for accurately analyzing high-temperature change of niobium compound in steel, which comprises the following steps: (1) fixing a metallographic sample on a clamp; (2) polishing and cleaning the surface of the metallographic sample; (3) observing the metallographic sample by using a metallographic microscope, finding characteristic niobium compound, marking the outer edge of the characteristic niobium compound by using a microhardness tester, and then accurately measuring the size of the marked niobium compound under a scanning electron microscope and accurately determining the composition of the marked niobium compound by using an energy spectrometer; (4) heat treating the metallographic sample to obtain a heat-treated sample; (5) removing the surface oxide of the heat-treated sample and then corroding the surface of the heat-treated sample; and (6) observing the change of the marked niobium compound after heat treatment under a scanning electron microscope and determining the composition of the marked niobium compound by using an energy spectrometer. The method has the characteristics of low detection cost, rapidness, simplicity, accuracy and the like.

The present disclosure relates to a kind of metal organic framework adsorption material and its preparation method and use, the method comprises: S1, the suspension of containing metal organic framework raw material is carried out ultraviolet irradiation treatment, obtain the light product;S2, the light product is carried out solid-liquid separation, obtain the solid product;Wherein, the wavelength of ultraviolet irradiation treatment is 200-400nm.The method provided in the present disclosure can efficiently and accurately regulate defect concentration, the crystal structure and morphology of the material prepared are intact, and have more active sites.The metal organic framework adsorption material provided in the present disclosure has excellent adsorption performance when used for adsorbing antibiotics.

The present application relates to a kind of dry equipment and drying method of handle mushroom, dry equipment includes conveying belt, the perforation for stem insertion from top to bottom is equipped on conveying belt;Drying cabinet can be passed through conveying belt, and the drying cabinet is sequentially divided into first chamber, second chamber and third chamber along the conveying direction of conveying belt, the top of the first chamber is equipped with first spraying device and first microwave drying device, the first spraying device is located in the upstream of first microwave drying device, hot air drying device is equipped in the second chamber, the top of the third chamber is equipped with second spraying device and second microwave drying device, the second spraying device is located in the upstream of second microwave drying device, and the effect of drying is good, and energy consumption is low.

The application belongs to the technical field of electrical insulation materials and nanocomposite material preparation, and discloses a method for preparing aramid composite insulation film by sorting long halloysite nanotubes. In the method, the halloysite nanotube raw material is sorted by natural settlement in water to obtain long halloysite nanotubes, which are then compounded with aramid nanofibers, and the composite insulation film with a dense staggered layered structure is prepared through spray film forming, solvent replacement and heat pressing densification treatment. The obtained film has excellent mechanical properties, insulation properties and high-temperature stability, and is resistant to acid, alkali, salt and organic solvent corrosion, and has good moisture-proof characteristics after hydrophobic modification. The sorting process is green and environmentally friendly, does not require organic additives, has excellent comprehensive performance, and is suitable for high-end insulation fields such as dry-type transformers, new energy motors and aviation electrical appliances.

The application provides popcorn and a preparation method thereof, and relates to the technical field of popcorn. The popcorn is prepared from pretreated corn kernels, oil and fat components and composite sugar powder. The composite sugar powder comprises isomaltulose, trehalose, allulose, natural inulin and licorice extract powder. The pretreated corn kernels are prepared from corn kernels, stevioside and glucose-based stevioside. The popcorn provided by the application can meet the characteristics of not being sticky, having a crisp taste and not being collapsed in shape. By compounding multiple functional sugar and natural extracts, the technical problems of being sticky, not having a crisp taste and having inconsistent sweet taste distribution in traditional popcorn are solved.

This invention provides a method for preparing WC-Co cemented carbide based on electron beam selective melting, belonging to the field of cemented carbide additive manufacturing technology. The method includes: 1) mixing tungsten carbide powder and cobalt powder; 2) modeling the component to be printed; 3) setting substrate preheating parameters; 4) setting contour scanning parameters; 5) setting part scanning parameters; 6) setting the part scanning strategy; 7) loading the mixed powder into the hopper of an electron beam selective melting device, leveling the substrate, and evacuating the vacuum; 8) cyclically stacking the powder according to steps 2) to 6) to obtain the WC-Co cemented carbide. The microstructure of this cemented carbide shows that the average size of the WC grains is 50-60 μm, and the Co phase is uniformly distributed between the WC hard phases. Room temperature tribological tests show that the cemented carbide has a friction coefficient of 0.55–0.65 at room temperature, exhibiting excellent room temperature wear resistance, making it suitable for cutting tools, molds, mechanical parts, etc., where room temperature tribological performance is required.

This application relates to the technical field of silicon wafer processing, specifically disclosing a pre-cleaning method for high-efficiency gettering in crystalline silicon heterojunction solar cells. This method includes steps such as pre-cleaning with a mixed acid solution, texturing, post-cleaning with a mixed acid solution and hydrofluoric acid, followed by phosphorus diffusion gettering treatment of the resulting silicon wafer. The mixed acid solution can micro-etch the silicon wafer surface to remove metallic impurities. During the micro-etching texturing process, the silicon wafer surface develops a pyramidal morphology, increasing the specific surface area and thus expanding the gettering area. Simultaneously, because the texturing process uses micro-etching to preserve the mechanically damaged areas on the silicon wafer surface, the combination of texturing and the mechanically damaged areas creates dual gettering centers in the subsequent gettering process. Even if the back side of the silicon wafer is not subjected to phosphorus diffusion gettering, the presence of the mechanically damaged areas on the back side can still achieve a good gettering effect, thereby enabling gettering on both the diffused surface and the non-diffused back side of the silicon wafer, improving the gettering efficiency.

The application discloses a kind of PdO-SnO2-SiO2 / SiO2 Self-supporting flexible gas-permeable nanofiber membrane gas sensor and preparation method thereof.Si electrospinning fiber is prepared by single needle head electrospinning method first, then Si electrospinning fiber and Pd-Sn electrospinning fiber interwoven fiber membrane is prepared on it by double needle head electrospinning method, then PdO-SnO2-SiO2 / SiO2 Flexible gas-permeable nanofiber membrane is obtained by heat treatment, finally electrode is prepared on its surface to obtain gas sensor.SiO2 Nanofiber in the sensor of the application has good flexibility, as a framework material to ensure the flexibility of the fiber membrane;Interwoven fiber membrane can effectively prevent SiO2 Nanofiber and PdO-SnO2 Nanofiber from separating, and has good gas permeability;At the same time, the fiber membrane is all inorganic material, which can maintain the original shape at high temperature, has good high temperature resistance and gas sensitivity.The sensor of the application has simple preparation process, stable performance, wide range of use, low cost, and has broad application prospect.

The utility model relates to a paper cup, in particular to a heat insulation paper cup with a heat insulation groove, which comprises a cup body, a cup bottom and a cup sleeve, the cup sleeve is sleeved outside the cup body, the cup bottom is connected to the bottom of the cup body, and an upper port of the cup body is provided with an outwards-turned rolling opening. A plurality of grooves are formed in the outer wall of the cup body and / or the inner wall of the cup sleeve at intervals, the grooves are point-shaped connecting lines or strip-shaped, an upper end opening of the cup sleeve is located below the rolling opening, the inner wall of the cup sleeve is attached to the outer wall of the cup body at the rolling opening, the grooves are pressed out through an indentation mold, the falling risk does not exist, and the structure is more reliable. The inner wall of the cup sleeve is attached to the outer wall of the cup body, the rolling opening shields the upper end opening of the cup sleeve, the appearance is complete, foreign matter is prevented from entering the cup, the grooves form a plurality of heat insulation cavities, air flowing is limited, convection heat dissipation is reduced, and the heat insulation effect is improved.

The application discloses a vertical variable-temperature pressure-difference quantitative puffed nut kernel crisp processing method and a puffing equipment, and relates to the field of food processing and treatment. The method comprises the following steps: after the nut kernel raw material is cleaned and soaked, standing and draining; the pretreated nut kernel is loaded into a hanging basket in a vertical puffing tank, steam is introduced into the vertical puffing tank, the nut kernel is subjected to steaming treatment, the vertical puffing tank is heated, the water in the nut kernel is vaporized, the pressure in the tank is increased and the tank is kept warm; the pressure relief valve between the vertical puffing tank and the vacuum tank is quickly opened, the pressure in the vertical puffing tank is instantaneously reduced, the water in the nut kernel is flash evaporated, the volume of the nut kernel is expanded, and a honeycomb structure is formed; the nut kernel is continuously heated and dehydrated under vacuum until the water content of the nut kernel is reduced; heating is stopped, and the nut kernel is cooled to room temperature; and the micro-puffed crisp nut kernel is obtained. Through the above steps, the quality problems of the existing nut kernel, such as hard taste, easy oxidation, great loss of nutrients, short shelf life and serious homogenization after high-temperature roasting and frying processing, can be solved.

This invention relates to the field of metallographic specimen technology, and more particularly to a portable metallographic specimen mounting machine, comprising a housing, a mounting cylinder fixedly connected to the housing, a lower mold slidably connected inside the mounting cylinder, a detachably threaded cap connected to the mounting cylinder, a temperature control module and an exhaust module disposed on the mounting cylinder, an upper mold slidably connected to the mounting cylinder and sealed to the cap, a first driving member fixedly connected inside the cap, and an elastic pressing member fixedly connected to the telescopic end of the first driving member and slidably connected to the upper mold and sealed to the upper mold. This invention uses the elastic pressing member to press and fix the metallographic specimen throughout the mounting process, thereby ensuring the stability of the metallographic specimen during mounting, improving the positional accuracy and process reliability of the mounting, and simultaneously absorbing the force between the metallographic specimen and the pressing post, reducing the probability of specimen breakage and deformation, and ensuring the morphology of the metallographic specimen.

A temperature-sensitive, environmentally friendly antifouling agent microsphere coating material, its preparation method, and its application are disclosed. The method includes: (1) mixing β-glycerophosphate sodium solution, chitosan solution, isothiazolinone xylene solution, emulsifier, and cosolvent to prepare an intermediate product; (2) mixing dimethyl silicone oil, water, water-in-oil surfactant, oil-in-water surfactant, and the intermediate product from step (1); (3) adding a crosslinking agent to step (2), heating for crosslinking, and preparing the microsphere coating material. The microsphere coating material prepared by the method of the present invention consists of spherical particles with uniform particle size controlled below 500 μm; the addition of the temperature-sensitive material β-glycerophosphate sodium gives the microsphere coating material temperature-sensitive responsiveness; the method of the present invention can stably prepare O / W / O emulsions with good reproducibility.

This invention proposes a training-free image harmonization and completion method, relating to the field of computer vision technology. The method involves acquiring a masked input image, a corresponding completion mask, and text prompts; inputting the input image, completion mask, and text prompts into a pre-trained stable diffusion model; dividing the self-attention map based on the completion mask into interactions within the masked region, interactions within the unmasked region, and interactions between the masked and unmasked regions; selectively weighting the interactions between the masked and unmasked regions to generate a reweighted self-attention map; adjusting the keys and values ​​in the self-attention mechanism to introduce style features from the unmasked region into the masked region, ensuring style consistency between the masked and unmasked regions; and completing the image completion based on the reweighted self-attention map and style harmony optimization, outputting a harmonized completed image.