7results about How to "Effective dissipation" patented technology

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.

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.

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.