6results about How to "Various sizes" patented technology

The invention discloses an electrocatalytic reduction membrane for high-selectivity electrocatalytic low-concentration nitrate water reductive denitrification and a preparation method of the electrocatalytic reduction membrane, and belongs to the technical field of water treatment. The method solves the problems that the removal efficiency of the low-concentration nitrate polluted water body is insufficient by adopting a conventional water treatment process, and the cost is high, the economical efficiency is poor and the environment is not protected when ammonia is directly recovered by adopting an electrocatalytic reduction method. The preparation method comprises the following steps: performing high-temperature pyrolysis on a copper-doped ZIF-8 material to obtain a Cu-CN / CB catalyst, mixing the Cu-CN / CB catalyst with PVDF and acidified CNT, and performing suction filtration to form the electrocatalytic reduction membrane. Carbon black is used as a core to grow copper-doped ZIF-8, the catalyst is obtained after carbonization, metal on the catalyst is uniformly distributed, catalytic sites are dense, and a conductive network is constructed by CNT; and by taking the reduction membrane as a cathode, optimizing the mass transfer efficiency of the catalyst and nitrate in a low-concentration nitrate water body through the CNT-Cu-CN / CB network, and fully completing nitrate adsorption-catalytic degradation in a confinement space.

This utility model relates to the field of building engineering technology and discloses a rapid assembly guide device for prefabricated components. It includes a connecting plate, to which multiple telescopic rods are fixedly connected. A connecting plate is fixedly connected to the outside of each telescopic rod, and a support plate is fixedly connected to the outside of each connecting plate. A driving mechanism is fixedly connected to the outside of the support plate. A guide post is fixedly connected to the bottom of the connecting plate, and a positioning mechanism is fixedly connected to the outside of each guide post. The driving mechanism includes a cylinder, to which a connecting block is fixedly connected. Multiple follower plates are fixedly connected to the outside of the connecting block. In this utility model, the cylinder drives the connecting block, causing the follower plates to move an L-shaped plate, which in turn causes the connecting plate to move a drive plate, which in turn causes the connecting rods to move a fixed plate. This allows the device to adapt to the assembly of different sized panels, improving its versatility.

The utility model belongs to the technical field of smelting, and discloses a copper-tin heterogenous solid waste recovery smelting device which comprises a supporting box, one end of the supporting box is fixedly connected with a power motor, the output end of the power motor is fixedly connected with a first rotating shaft, and the inner surface of the supporting box is fixedly connected with a supporting frame. A first protecting sleeve is fixedly connected to the top end of the supporting frame, one end of a first rotating shaft penetrates through the first protecting sleeve and is fixedly connected with a first bevel gear, a second bevel gear is connected to the outer surface of the first bevel gear in an engaged mode, a second rotating shaft fixedly sleeves the inner surface of the second bevel gear, and the bottom end of the second rotating shaft is rotationally connected with the supporting frame. By arranging the power motor, the pre-treatment effect of waste materials before smelting is greatly improved, a high-quality raw material basis is provided for the subsequent smelting procedure, and the efficiency and quality of the whole recycling and smelting process are remarkably improved.

This invention discloses a method for detecting the appearance of planar objects. First, a set of detection parameters, including imaging parameters, acquisition strategies, and threshold rules, is obtained based on the object information. Then, camera imaging calibration and pixel-to-actual-size ratio calibration are performed, establishing a coordinate mapping between pixels and the stage. Initial images are acquired to obtain object pose parameters and perform rotational alignment. Multi-view or rotational scanning is performed for synchronous image acquisition according to the imaging parameters and acquisition strategy. Image quality is evaluated frame by frame; if unqualified, parameters are adjusted and images are re-acquired. For qualified images, illumination normalization and standardization preprocessing are performed to extract the final region of interest, generate defect candidate regions, and extract grayscale, shape, and texture features for identification and classification. The defect category, confidence level, and actual size are output. Finally, a qualified or unqualified result is determined based on preset threshold rules. This invention eliminates misjudgments caused by low-quality images at the source, significantly enhances detection robustness, and has good adaptability to various objects.

The present application relates to the technical field of insulation film, especially to the field of IPC G03F, more particularly to a preparation method of a photosensitive integrated circuit stacked insulation film. The present application is based on the actual market demand, and scientifically designs the formula of the stacked insulation film material by combining basic research with industrial development, so as to realize the manufacturing of the fine line laminated adhesive film with low thermal expansion coefficient, high frequency low dielectric, low loss, high bonding force. The material has good performance in insulation, mechanics, heat conduction and the like, and does not depend on the expensive precision drilling equipment imported, and these performances enable it to replace ABF in the electronic field such as microchip integrated insulation technology, and have wide application prospect.

The application provides a TiAl alloy rich in large-size alpha2 phase twins, in particular, second-type twins, which contains 34-36 at.% of Al, 7-8 at.% of Nb, and the balance of Ti and inevitable impurities. The application also provides a method for preparing the TiAl alloy rich in large-size alpha2 phase second-type twins, which comprises the following steps: melting the alloy by a vacuum arc furnace to obtain a cast ingot, carrying out homogenization treatment at 1200 DEG C for 9-12 hours, and then quenching after being kept at 900-1000 DEG C for 3-6 hours to obtain the TiAl alloy rich in large-size alpha2 phase second-type twins. A large number of second-type twins with large size can be generated in the alloy, which provides suitable research materials for the research on deformation twins, solves the problem that the deformation twins are difficult to be characterized and researched, and provides a basis for further strengthening of the alloy performance.