6results about How to "Compressible" patented technology

The invention belongs to the field of air electrode materials, and discloses a self-supporting multifunctional catalytic fabric electrode and preparation and application thereof. According to the invention, a metal organic framework is grown in situ on an acid-treated and modified graphite felt substrate through a simple room-temperature self-assembly method, so that the semi-coated nano-particle metal with uniform adsorption and multiple active sites is obtained. Dicyandiamide (DCD) is used as a carbon source, and an M-Nx-C type carbon nanotube (NCNTs) electrocatalyst is grown in situ on a three-dimensional flexible metal organic framework conductive substrate through a chemical vapor deposition (CVD) method. The synthesized GF / Co-NCNTs show excellent three-function catalytic activity and excellent stability, and ORR, OER, HER and stability tests of the GF / Co-NCNTs are not inferior to those of commercial Pt / C and RuO2. The method can be applied to the aspects of zinc-air batteries, flexible wearable equipment, pressure sensors and self-driven water electrolysis hydrogen production.

The present invention discloses a high thermal shock MgO-Al-C skateboard brick and a preparation method thereof. In terms of weight percentage, the raw material composition is: 55-65% magnesia particles, 20-35% magnesia fine powder, 5-10% metal aluminum, 1-8% light zirconia particles, 1-3% carbon-containing raw materials, 0.5-5% additives, and 3-5% binders. Each component is weighed by weight, and after mixing, molding, baking, or continuing to be treated at medium temperature in a weak reducing atmosphere or nitrogen atmosphere, it is put into storage after being hooped, glued to a steel shell, ground, coated, finished, and accepted. The high thermal shock MgO-Al-C skateboard brick produced by the present invention is added with light zirconia particles with micropores and compressibility, which absorbs the thermal expansion of magnesia, relieves the thermal stress of the material, and improves the thermal shock resistance. At high temperature, the zirconia particles and periclase are solid-dissolved, which promotes the combination of materials, increases the high temperature strength, reduces the degree of cracking, peeling, and roughening during use, and improves the service life of the MgO-Al-C skateboard.

The utility model discloses a liquid metal packaging structure, which comprises a sealing frame and a heat dissipation piece, the sealing frame comprises a frame, a first elastic sealing ring and a second elastic sealing ring, the middle area of the frame is provided with an accommodating area, a chip is arranged in the accommodating area, an annular groove is formed between the chip and the frame, the first elastic sealing ring is embedded in the bottom of the annular groove, and the second elastic sealing ring is embedded in the bottom of the annular groove. The second elastic sealing ring is arranged on the periphery of the frame in a surrounding mode, the heat dissipation piece is arranged on the end face of the frame in a covering mode, the heat dissipation piece, the chip, the first elastic sealing ring and the frame jointly define a sealed space used for being filled with liquid metal, and the frame comprises a plurality of holes and has compressibility. The liquid metal packaging structure provided by the utility model realizes efficient heat conduction and can reliably seal the liquid metal under pressurization.

This application discloses a group-opening sludge filter press, relating to the field of sludge and wastewater treatment. It includes a frame and a filter press assembly mounted on the frame. The frame includes side beams, and along the side beams from one end to the other, an end frame, a movable frame, an extrusion end plate, and another end frame are sequentially arranged. The filter press assembly includes several filter press components disposed between the extrusion end plate and the end frame at the other end. A central push plate, dividing the filter press components, is disposed between the extrusion end plate and the end frame at the other end. The extrusion end plate and the end frame at the other end are connected by a connecting chain, and the central push plate and the filter press components are all connected to the connecting chain. A power mechanism A drives the extrusion end plate to slide along the length of the side beams. A power mechanism B drives the movable frame and the central push plate to move along the length of the side beams. This design solves the problems of existing filter presses, achieves group-opening and closing of the plates twice, reduces equipment length and floor space, and improves production efficiency.

This application provides an automated pneumatic drilling machine, including a frame with a base platform mounted on it; a first transverse platform for providing movement in a first horizontal direction; a second transverse platform for providing movement in a second horizontal direction, with the first and second horizontal directions perpendicular to each other; and a pneumatic drilling assembly including a cylinder and a pneumatic drill bit, the pneumatic drilling assembly moving perpendicular to the base platform and used to drill a workpiece placed on the second transverse platform. The start and stop of the first and second transverse platforms and the pneumatic drilling assembly are all controlled by a PLC control module. This application features overload protection and impact resistance. The pneumatic system itself is compressible; when the drill bit encounters a hard point and gets stuck, the pneumatic cylinder or the pneumatic drill bit can instantly absorb the impact energy through internal pressure relief or "slippage," avoiding rigid damage to the transmission mechanism. The equipment is safer, has a longer service life, and the pneumatic system has a simple structure and low maintenance cost.

This invention belongs to the field of pipeline installation technology and discloses an auxiliary device for pipeline installation in underground tunnels. The device includes a frame with two support plates on its top. A support plate slides vertically along one side of the support plate. Through the cooperation of interception and locking components, the locking plate, utilizing the resilience of a spring-loaded telescopic rod, ensures its inner wall continuously adheres to the outer surface of the roller, preventing the operator from pushing the pipeline. Even when the roller is movable, the raised interception plate further prevents pipeline movement. By adjusting the pipeline height to align it with the pipeline inside the tunnel, rotating the handle allows the roller to move. During the movement of the locking plate, the corrugated pipe is compressed, causing the air inside to push the pressure plate, thus fixing the position of the pipeline at the top of the device with the pipeline inside the tunnel, thereby improving the accuracy of the connection work.