13results about How to "Effective dissipation" patented technology

The utility model discloses a 3C production anti-static carrier which comprises a bottom plate and a bearing plate, the bearing plate is arranged at the top of the bottom plate, an anti-static assembly is arranged between the bottom plate and the bearing plate and comprises anti-static rubber arranged on the outer wall of the top of the bearing plate, and conductive carbon black materials are added into the anti-static rubber. A connecting piece is fixedly installed on the outer wall of one side of the bottom plate, a wire is arranged on the outer wall of one side of the connecting piece, a metal wire in the wire is fixedly connected with the connecting piece, and a connecting assembly is installed between the bottom plate and the bearing plate and comprises two limiting sliding grooves formed in the bottom plate. According to the anti-static carrier, the anti-static assembly is arranged, so that the probability that static electricity is generated between a product and the carrier can be reduced, meanwhile, the generated static electricity can be conducted to the outside in time, and the static electricity is effectively prevented from influencing the product.

This application relates to a polyimide film, its preparation method, and its application, falling within the field of polymer film preparation technology. The preparation method includes: dissolving calix[n]aromatics, monoacyl chloride monomers, and diacyl chloride monomers in an organic solvent at a specific molar ratio to form a hyperbranched structure; adding a diamine monomer to generate an amino-terminated hyperbranched structure; then adding a dianhydride monomer and a diacyl chloride monomer to obtain a polyamic acid solution; and finally, chemical imidization and film-forming treatment to obtain a polyimide film. This application effectively solves the problem that existing polyimide films struggle to simultaneously possess excellent bending resistance and creep resistance, significantly improving the film's applicability in the field of flexible displays.

The invention discloses a preparation method of a high-transmittance radiation refrigeration film, which comprises the following steps: mixing a transparent resin matrix with a diluted monomer solution, adding an ultraviolet light absorber, a surface additive and a photoinitiator, and carrying out ultrasonic dispersion to obtain a coating liquid; the surface of a transparent polymer base material is coated with the coating liquid, and the coating liquid is irradiated and cured by 365nm ultraviolet light to form the radiation refrigeration film. The visible light transmittance of the obtained film is larger than or equal to 92%, the ultraviolet rejection rate is larger than or equal to 99%, the infrared emissivity in the atmosphere window wave band is larger than or equal to 0.90, and cooling can be effectively achieved through radiation heat dissipation. The surface of the film is hydrophobic, the water contact angle is larger than 90 degrees, and the film has potential self-cleaning maintaining capacity. The method is simple in process, can be quickly cured at room temperature, is suitable for large-area continuous production, and has the advantages of low cost and high industrialization potential.

The invention discloses a high-strength acrylic structural adhesive and a preparation method thereof, and belongs to the technical field of structural adhesives. The high-strength acrylic structural adhesive comprises a component A and a component B, the component A comprises an acrylate monomer, a first cross-linking agent, an antioxidant, a polyacrylate elastomer, a polymerization inhibitor, a reducing agent and modified mesoporous silica; the component B comprises an acrylate monomer, a first cross-linking agent, a polyacrylate elastomer, a polymerization inhibitor, an oxidizing agent and modified mesoporous silica; the acrylic ester monomers comprise ethyl methacrylate and lauryl methacrylate; 2, 4, 6-triallylphenol is adopted as the antioxidant; the polyacrylate elastomer is obtained by carrying out composite reaction on 2-acrylamido-2-methyl-1-propane sulfonic acid polymer particles, ethyl acrylate, vanillin methacrylate, an initiator and a second cross-linking agent; the second cross-linking agent is prepared from ethylene glycol dimethacrylate and triallyl phosphite ester.

The utility model relates to a water environment photovoltaic support damping device which comprises bearing cables arranged in pairs, the bearing cables are arranged in parallel to form bearing cable groups, the device further comprises a plurality of damping assemblies, the damping assemblies are arranged in the length direction of the bearing cables, and the damping assemblies are installed between the bearing cables or the adjacent bearing cable groups. The damping assembly comprises a counterweight plate arranged in a plate shape and a connecting piece for connecting the bearing cable and the counterweight plate, the density of the counterweight plate is larger than that of water, the counterweight plate is completely immersed in the water, the connecting piece is partially immersed in the water, the connecting piece is a rigid rod or a flexible steel strand, a wind-resistant cable is further arranged at the bottom of the bearing cable, and the wind-resistant cable is connected with the bearing cable. The connecting pieces are connected with the wind-resistant cables and the bearing cables, energy generated by wind power is effectively dissipated, the amplitude of the whole flexible support is reduced, and the structural strength and safety are improved.

This utility model discloses a hook assembly and lifting equipment based on anti-disengagement of steel ingot molds, relating to the field of steel ingot mold lifting. The key technical points are: it includes an installation part and an elastic telescopic part located below the installation part. A hook is installed on the telescopic part of the elastic telescopic part. The elastic telescopic part has a high-strength spring and a damper. The effect is that when the hook lifts the steel ingot mold, the shaking and impact forces generated during the lifting process due to starting and stopping inertia and running vibrations are first transmitted to the elastic telescopic part. The high-strength spring in the elastic telescopic part absorbs some energy through its own elastic deformation, reducing the impact force. At the same time, the damper plays a buffering role, effectively dissipating the remaining energy, reducing the vibration amplitude and frequency, thereby reducing the periodic alternating load borne by the connection between the hook and the steel ingot mold, avoiding hook fatigue fracture, preventing relative displacement or disengagement between the steel ingot mold and the hook, and ensuring lifting safety.

The camera actuator according to the present invention comprises: a housing including a first wall portion and a second wall portion spaced apart from each other; a moving member having an optical member disposed therein and disposed between the first wall portion and the second wall portion; a guide member provided in the housing and guiding the inclination of the moving member; a support unit coupled to the moving member by passing through the guide member; the first magnet is arranged on the guide piece; and a second magnet facing the first magnet and provided on the support unit, in which the first magnet and the second magnet provide a holding force to the moving member and the support unit due to a repulsive force.

The semiconductor package includes a substrate having a top surface and a bottom surface; the chip is arranged on the top surface of the substrate; the heat conduction material is arranged between the chip and the substrate and is used for attaching the chip to the substrate; one end of each bonding wire is connected to the chip, and the other end of each bonding wire is connected to the top surface of the substrate; the sealing colloid is formed on the top surface of the substrate and covers the chip and the plurality of bonding wires; and the heat dissipation frame is arranged on the top surface of the substrate and surrounds the sealing colloid. The invention also provides a method for manufacturing the semiconductor package.

This utility model discloses an extraction device for eliminating static electricity, comprising: a clarification tank body and a cover plate, wherein one end of the clarification tank body is provided with a liquid inlet and a drain outlet, and the other end is provided with an oil phase outlet and a water phase outlet; a connecting pipe is disposed in the liquid inlet; and a speed reducer is disposed on one side of the connecting pipe for slowing down the solution transported in the connecting pipe, reducing the flow rate of the solution inside the clarification tank body, and reducing frictional static electricity. This utility model, by setting a speed reducer at one end of the connecting pipe, utilizes a motor drive, and under the mutual action of the transmission wheel and transmission belt, drives the connecting block to rotate. Under the action of the flow guide, the solution can be divided into multiple streams, slowing down the flow rate and eliminating frictional static electricity. Since an antistatic film with an antistatic agent is disposed on the surface of the transmission belt, it can effectively dissipate static electricity in the solution during transportation.

This invention discloses an additive manufacturing-based inertial amplification nonlinear low-frequency vibration isolation metamaterial structure, vibration isolation device, and its performance control method. The vibration isolation metamaterial structure includes a rhombic frame structure, an inertial amplification unit, and a square spring structure. The square spring structure is arranged within the rhombic frame structure, with its two ends connected to a pair of opposite corners of the rhombic frame structure. The elastic extension direction of the square spring structure is parallel to the diagonal of this pair of opposite corners of the rhombic frame structure. The inertial amplification unit has a centrally symmetrical structure, including a rigid rod, two counterweights, and two diagonal rods. The center of symmetry of the inertial amplification unit, the center of the rhombic frame structure, and the center of the square spring structure all coincide in projection. Therefore, the vibration isolation metamaterial structure of this invention significantly widens the bandgap range and enhances low-frequency vibration isolation performance, exhibiting excellent performance in suppressing longitudinal waves in the 0-1000Hz low-frequency range, increasing vibration damping, and energy absorption.

This invention relates to the field of mine safety technology, specifically to a three-dimensional blasting pressure relief and anti-impact method and system in dynamic mining process, including the following steps: Step 1, mine data acquisition and analysis: (1) Collect geological data: burial depth, coal seam thickness, roof lithology, mining parameters and historical mine pressure manifestation records; (2) Analyze energy event distribution through microseismic monitoring system; This invention constructs a coupled algorithm based on LSTM neural network and FLAC3D / RFPA numerical simulation to realize real-time optimization of blasting parameters, and trains the model through multi-source data such as microseismic spectrum and roof subsidence rate, so that the stress field control error is greatly reduced and the vertical stress peak transfer distance is greatly improved, which completely solves the problem of lag in manual adjustment. Combined with seismic wave CT dual-mode scanning, the response time for solving the problem of lag in manual adjustment is greatly shortened, and the quantitative evaluation of high frequency low energy conversion and stress peak transfer amount is realized.

The utility model discloses a graphite tool for solar cell production belongs to the field of solar cell plating antireflection film, including paddle, the both sides of paddle are equally provided with the clamping hole, and the clamping hole is adapted to the size of alloy ball, and the alloy ball left side lap has alloy screw, and the alloy screw left side lap has ceramic post, and the ceramic post one end rotationally connected has ceramic knob, and the most right side alloy ball clamping has the outer layer tooling. The utility model discloses the rigid connection mode between paddle is optimized as the flexible connection mechanism based on elastic structure, and the design allows the independent disassembly and replacement when a single paddle needs to be replaced, significantly simplifies the maintenance process, avoids the time loss produced by sequentially disassembling all paddles required by traditional rigid connection, adopts the bionic fishbone structure design air duct, and the air flow of paddle rotation center area (the core area of easy turbulence / vortex) is integrated and guided by optimizing the convection field.