5results about How to "Realize dynamic protection" patented technology

The invention discloses a method for in-situ growth of a ZIF-7 film layer on the surface of a magnesium alloy micro-arc oxidation film layer, and the method specifically comprises the following steps: step 1, treating the surface of a magnesium alloy workpiece to be processed to make the surface smooth; 2, the workpiece treated in the step 1 serves as an anode to be placed in electrolyte, graphite serves as a cathode, a direct-current power source is adopted for conducting micro-arc oxidation treatment on the workpiece in a constant-current mode, a micro-arc oxidation film layer is formed on the surface of the workpiece, and then cleaning and blow-drying are conducted; step 3, putting the workpiece prepared in the step 2 into a ZIF-7 seed crystal solution, keeping the temperature at 110-130 DEG C for 180-300 minutes for in-situ growth, and taking out, cleaning and drying the workpiece after the growth is finished; wherein the ZIF-7 seed crystal liquid is prepared from zinc nitrate hexahydrate and benzimidazole, and the solvent is prepared from N, N-dimethylformamide and methanol; in the ZIF-7 seed crystal liquid, the concentration of zinc nitrate hexahydrate is 0.5 to 2.5 g / L, and the concentration of benzimidazole is 0.5 to 2.5 g / L.

The invention discloses a high-performance heat dissipation device for an industrial computer and the industrial computer, and relates to the field of industrial computer technology, including: a high-efficiency heat dissipation ceramic sheet group, which is installed on the inner bottom side of a machine body and is used to quickly dissipate the heat generated inside the machine body. Through the cooperation of a fixed-point dynamic heat conduction and heat dissipation component, an operation frame plate drives a heat conduction frame and a semiconductor contact end to extend and retract, thereby achieving precise contact with a heat source point, achieving stability and reliability of the industrial computer when running under high load, and ensuring optimization of the heat dissipation effect. At the same time, under the cooperation of a dynamic protection component, a magnetic field is generated by an electromagnetic coil, and magnetic flow particles are controlled to form a specific arrangement in a circulating coolant flow pipe, thereby enhancing the shielding effect of electromagnetic signals. Through the dynamic adjustment of a rotating electromagnetic protection arc plate and the control of the magnetic flow particles, dynamic protection against external electromagnetic signals is achieved, thereby ensuring the stability and reliability of the industrial computer in a high electromagnetic interference environment.

The invention discloses a block chain digital asset transaction security verification method and device based on cross-dimensional biometric key right confirmation, and the method comprises the steps: constructing a feature set and a unique identification code based on a fingerprint ridge key and a facial feature key, carrying out the cross-dimensional fusion to form a biometric key reference vector, and calculating a hash value of an encrypted ciphertext; constructing a key retrieval voucher, and registering and storing the key retrieval voucher together with the unique identification code; when a user initiates a block chain digital asset transaction request, a to-be-verified biological key reference vector is generated based on a user fingerprint ridge key and a facial feature key, validity verification of hash and key feature right verification is performed in combination with a unique identification code and transaction information, and early warning is performed based on user verification frequency. And the safe and credible node performs secondary verification on the early warning. According to the method, a decentralized security verification system is constructed, safer, more reliable and more efficient security verification in block chain digital asset transactions is realized, and the credibility and security of the transactions are improved.

This invention relates to the field of forging technology, and specifically discloses a forging device for high-quality copper alloy forgings for engineering machinery. The top of the worktable is uniformly equipped with support shafts, the bottom of which is fixedly connected to the top of the worktable. A top plate is fixedly connected to the top of the support shafts, and a driving component is fixedly connected to the center of the top of the top plate. A forging plate is slidably connected to the support shafts, and the center of the top of the forging plate is fixedly connected to the output end of the driving component. A placement plate is slidably connected to the inner side of the worktable. In this forging device for high-quality copper alloy forgings for engineering machinery, the output end of the driving component drives the connecting shaft, thereby pushing the positioning plate to move synchronously towards the forging direction. This achieves centered positioning of the forging on the placement plate, ensuring that the forging is in the preset forging area in the center of the placement plate, providing a reliable positioning reference for subsequent forging by the forging plate.

This utility model discloses an excavator and its dual-bucket cylinder protection device. The dual-bucket cylinder protection device includes a protective cover connected to the bucket head via a first fixing component and a track connected to the cylinder via a second fixing component. The protective cover is positioned above the piston rod. Slide grooves are provided on both sides of the track. Sliding blocks matching the slide grooves are provided on the inner walls of both sides of the protective cover. The sliding blocks are slidably connected to the slide grooves. The first fixing component includes a first support frame fixed to both sides of the protective cover via a first fastener. A first fixing frame is fixedly connected below the first support frame via a third fastener. The second fixing component includes a second support frame fixed to the track via a second fastener. A second fixing frame is fixedly connected below the second support frame via a fourth fastener. This device effectively blocks mineral and rock fragments splashed in the mining environment, preventing the piston rod from being hit or scratched, achieving dynamic protection of the piston rod throughout its stroke, and significantly reducing the risk of surface damage.