11results about How to "Efficient mass production" patented technology

This invention discloses a positive-film all-silicon nitride passivated TOPCon solar cell and its fabrication method, belonging to the field of solar cell technology. The cell includes a back metal electrode, a back silicon nitride passivation layer, an n-type monocrystalline silicon substrate, a silicon dioxide tunneling oxide layer, and an n-type monocrystalline silicon substrate stacked sequentially from bottom to top. + A heavily doped polycrystalline silicon layer, a positive silicon nitride passivation antireflection layer, and a front surface selective electrode; this application uses a positive silicon nitride passivation antireflection layer instead of the traditional Al2O3 / SiN. x The stacked layers achieve strong field-effect passivation through high fixed negative charge, reducing dangling bonds on the silicon surface and lowering the surface recombination rate; the positive silicon nitride passivation antireflection layer is SiN. x Dense films can reduce interface defects, allowing the dark saturation current density of the battery to drop to 10–15 fA / cm². 2 the following.

The invention belongs to the technical field of MEMS lead packaging, and relates to a high-efficiency and high-strength lead method for a high-temperature MEMS device, which comprises the following steps of: S1, coating a layer of conductive paste on a lead area of the high-temperature MEMS device with a prepared sensitive layer and to be subjected to lead, and sintering and curing; and S2, pressing and welding a wire into the sintered and cured conductive slurry to serve as a lead. According to the method, the high temperature resistance of the MEMS device is remarkably improved through an innovative strategy of firstly leading wires and then integrally packaging, the advantages of welding and slurry sintering are combined, and the strength and reliability of the leading wires are enhanced through accurate silver slurry printing and sintering processes and accurate pressure welding of pressure welding equipment; the lead method not only ensures the stability and reliability of the device in a severe environment, but also improves the electrical performance of the device, and provides powerful support for wide application of the high-temperature MEMS device.

The application provides an acoustic material, a manufacturing method thereof, a loudspeaker and electronic equipment, wherein the acoustic material is formed by interweaving hydrophilic fibers with each other, has a three-dimensional network structure inside, and has porous powder materials attached to the surfaces of the hydrophilic fibers through a precipitation aid, the hydrophilic fibers include hydrophilic natural fibers and / or hydrophilic modified chemical synthetic fibers. The acoustic material has high efficient acoustic performance, and the acoustic performance of the porous powder material with the acoustic enhancement function per unit mass is better than that of commonly used acoustic enhancement particles on the market. The acoustic material also has stable acoustic performance, and after high-temperature and high-humidity storage according to the technical content recorded in 7.8.4 of the group standard 'Porous sound-absorbing particles for micro loudspeakers' (standard number: T / CECA 78-2022), the acoustic performance of the acoustic material has no loss.

The invention discloses a hot pressing device for garment fiber fabric production, and relates to the technical field of garment production. Comprising a hot-pressing adjusting frame, hot-pressing units, a chain conveyor and shaping units, each hot-pressing unit comprises a shell, a cover plate and a shaping module, a plurality of conveying chain plates are arranged on the chain conveyor, each conveying chain plate is fixedly provided with the corresponding shaping unit, the structures of the shaping units are the same as those of the hot-pressing units, and the shaping units and the hot-pressing units are matched with each other for hot-pressing shaping. According to the invention, the distribution and interval of the hot-pressing areas can be quickly adjusted, so that the hot-pressing of the wrinkles of the whole fabric can meet the customization requirement of a specific area, efficient batch production can be realized in continuous conveying, and the forming width of the wrinkles can be accurately adjusted according to a specific product design scheme and process standard.

This disclosure relates to a method for preparing N-(fluorosulfonyl)dimethylamine, the method comprising the following steps: (1) adding SO2Cl2 and Me2NH to a reactor, and reacting fully to obtain an intermediate product ClSO2NMe2; (2) adding a fluorine source to the intermediate product ClSO2NMe2 obtained in step (1), and reacting fully to obtain a reaction product containing N-(fluorosulfonyl)dimethylamine; and (3) separating N-(fluorosulfonyl)dimethylamine from the reaction product obtained in step (2). This method improves production efficiency and product yield, effectively controls the reaction process, and reduces reaction costs.

The utility model relates to an oil bottle tray for an oil bottle filling assembly line, which comprises a fixed bottom plate, a positioning plate arranged above the bottom plate in parallel through a side plate and a connecting block fixed at the bottom of the fixed bottom plate, and a connecting structure connected with a conveying belt of the assembly line is arranged on the bottom surface of the connecting block. A plurality of bottle holes are formed in the positioning plate at equal intervals, a bottle bottom positioning block is arranged on the bottom plate below the bottle holes, and a bottle bottom positioning groove is formed in the bottle bottom positioning block. According to the oil bottle tray for the oil bottle filling assembly line, the problem that in the prior art, the conveying efficiency is low is solved, the overall operation performance and the product quality of the production line are improved, and the oil bottle tray has important practical value and wide application prospects for the modernized and efficient filling production line.

The utility model provides a special tool for hoisting a piston head, which comprises a first arc-shaped hoop and a second arc-shaped hoop which are arranged in pairs, first lug plates are symmetrically arranged at the opening end of the first arc-shaped hoop, and second lug plates are symmetrically arranged at the opening end of the second arc-shaped hoop; the first arc-shaped hoop and the second arc-shaped hoop are clamped outside the piston head and are fixedly connected through a bolt assembly; a first hoisting rod is fixed on the outer wall of the arc-shaped middle part of the first arc-shaped hoop, and a second hoisting rod is fixed on the outer wall of the arc-shaped middle part of the second arc-shaped hoop. The hoisting tool is suitable for accurate and safe hoisting in the surfacing process of the corrosion-resistant nickel-chromium alloy material of the piston head of the large-cylinder-diameter diesel engine by adopting a welding robot, so that high-efficiency batch production is facilitated; and the piston head can be conveniently and safely lifted by a lifting worker, and the piston head is prevented from falling off in the process of using a magnet to lift due to overhigh surfacing temperature.

This invention discloses a composite ultrathin lithium foil, its preparation method, and its applications. It is formed by combining high-oxidation-degree graphene, carbon nanotubes, and molten lithium metal, followed by cooling and rolling. The oxygen-containing functional groups on the graphene react with lithium to form lithiophilic sites. The carbon nanotubes are treated with silicon and zinc acetate to enhance their lithiophilicity, allowing them to be uniformly dispersed in the molten lithium. After cooling, the composite ultrathin lithium foil is rolled using a roller mill. The composite ultrathin lithium foil provided by this invention has high tensile strength and Young's modulus due to the network structure formed by graphene and carbon nanotubes, facilitating large-scale processing and application. Coating it onto the surface of the negative electrode of a lithium-ion battery can pre-lithiate the electrode material, thereby effectively improving the initial coulombic efficiency of the lithium-ion battery. The capacity corresponding to the lithium foil can be controlled by changing the content of graphene and carbon nanotubes to achieve precise pre-lithiation, further improving the performance of lithium-ion batteries to meet the requirements of energy storage applications.

The utility model discloses a novel plastic clamping seat which comprises a clamping seat main body, an end plate and a group of side clamping parts which are integrated, the clamping seat main body and the end plate are connected through the group of side clamping parts, and the outer sides of the side clamping parts are provided with positioning clamps used for being clamped on automobile parts for fixing. The end plate and the clamping base body are provided with corresponding fixing holes used for being matched with a bolt structure. The novel plastic clamping seat is reasonable in structural design, the clamping seat is completely made of plastic parts, does not comprise metal parts, can be formed through integral injection molding, and is simple and convenient in forming process, efficient in batch production and relatively low in cost; during assembly and fixation, the side clamping parts deform and expand outwards, and fixation is more reliable.

The application relates to a three-axis gyroscope, in particular to a novel three-axis silicon micro gyroscope. The application solves the problems of low measuring precision and high production cost of the existing three-axis gyroscope. The novel three-axis silicon micro gyroscope comprises a glass substrate, a resonator part and an electrode part; the resonator part comprises a cylindrical center anchor point, four groups of square anchor points A and four square anchor points B; the cylindrical center anchor point, the four groups of square anchor points A and the four square anchor points B are all bonded to the upper surface of the glass substrate; the electrode part comprises four pairs of arc-shaped electrodes A, four arc-shaped electrodes B, four pairs of arc-shaped electrodes C, four arc-shaped electrodes D and four rectangular electrodes; the four pairs of arc-shaped electrodes A, the four arc-shaped electrodes B, the four pairs of arc-shaped electrodes C and the four arc-shaped electrodes D are all bonded to the upper surface of the glass substrate; and the four rectangular electrodes are all sputtered on the upper surface of the glass substrate. The application is suitable for high-precision and high-tech fields such as military navigation and deep space exploration.

This application belongs to the field of high-purity quartz glass preparation technology, and more specifically, relates to a method for preparing a low-hydroxyl synthetic quartz glass masterbatch. This application employs a six-stage integrated composite process, including a powder pre-shrinking homogenization stage, a low-temperature gradient pre-fabrication stage, a medium-temperature gradient equalization and calibration stage, a medium- and high-temperature gradient convergence and cancellation stage, a post-treatment stage, and a final high-temperature transparent sintering stage. Through thermal shrinkage homogenization combined with subsequent chlorine gradient pre-fabrication, equalization, and cancellation in a multi-step manner, the optical defects caused by the chlorine gradient in existing synthetic quartz glass masterbatches are solved, achieving the preparation of a low-hydroxyl, highly uniform, and highly dense transparent synthetic quartz glass masterbatch.