11results about How to "Settle settlement" patented technology

The invention relates to the technical field of composite electroplating, in particular to an electroplating method for preparing a high-wear-resistance self-lubricating plating layer, which comprises the following steps: firstly, carrying out pretreatment of oil removal and acid pickling activation on a metal workpiece; then preparing a nano composite nickel plating solution in which a nickel plating basic solution contains a nano particle composite phase subjected to pre-dispersion treatment, and the total concentration of composite particles is 10-60g / L; then the dispersion stability of the nano-composite nickel plating solution is maintained in a circulating filtration and mechanical stirring combined mode, and the pretreated workpiece is electroplated; and finally, after electroplating is completed, the workpiece is cleaned and dried. According to the electroplating process for preparing the nickel-based composite coating with high wear resistance and low friction coefficient, the pulse current is adopted, and the high instantaneous current density and turn-off time of the pulse current are utilized, so that desorption and rearrangement of adsorbed particles are facilitated, uniform embedding of the particles is promoted, nickel matrix crystal grains are refined, and the compactness and comprehensive mechanical properties of the coating are further optimized.

The utility model provides a kind of well lid anti-settling fixing device.It relates to municipal engineering construction technical field.The well lid anti-settling fixing device includes well slot being opened on ground, annular supporting member is equipped in the well slot, the bottom of the annular supporting member is equipped with positioning ring groove, annular positioning protrusion is fixedly installed on the bottom inner wall of the well slot, the top of the annular positioning protrusion extends into the positioning ring groove, the well slot, annular supporting member and annular positioning protrusion constitute concrete filling cavity between;The top of the annular supporting member is equipped with installation ring groove, well lid main body is equipped in the installation ring groove, the top of the well lid main body is equipped with four first clamping slots being annular array distribution, the top of the annular supporting member is equipped with four second clamping slots being annular array distribution.The utility model has the advantages of simple structure, convenient installation, and stable and reliable anti-settling effect.

The invention relates to the technical field of fire fighting, and provides a durable anti-falling fire extinguisher. The fire extinguisher comprises an aerogel tank body, a spraying channel, a pressing nozzle and a durable anti-falling assembly. The durable anti-falling assembly comprises a rotating rod extending into the tank body, a stirring piece and a driving conversion mechanism for converting external impact into power of the rotating rod. Impact energy such as vibration and falling borne by the fire extinguisher in use and transportation is ingeniously converted into power for driving an internal stirring part to rotate through a mechanical structure, so that an aerogel fire extinguishing agent is continuously stirred, deposition failure of key components is prevented, and the storage life of the fire extinguishing agent is remarkably prolonged to more than 10 years. Meanwhile, impact energy is consumed in the energy conversion process, and the buffering and falling preventing performance is enhanced. Preferably, a self-adaptive buffer assembly based on magnetorheological fluid can be further arranged to cope with extreme impact. According to the invention, the unification of fire extinguishing efficiency persistence and physical durability is realized, and the method is particularly suitable for vehicle-mounted and other scenes with mobile and high-reliability requirements.

The application provides a lifting machine applying a gear and rack transmission structure and belongs to the field of logistics storage. A driving gear on one side of a loading platform and a rack on one side of a stand column form a lifting transmission mechanism, so as to improve transmission precision, realize accurate butt joint of the lifting machine and a goods shelf, and completely solve the existing defects that the loading platform is prone to subsidence when goods or a shuttle vehicle enters or exits the lifting machine. The lifting machine comprises a base assembly, a stand column frame assembly is fixedly connected to the base assembly, a plurality of counterweight chains and a counterweight assembly are arranged on the inner side of the stand column frame assembly, a loading platform assembly is vertically connected and runs in the stand column frame assembly, and a top frame assembly is arranged on the top of the stand column frame assembly.

The utility model provides a roadbed supporting device capable of adjusting settlement, and relates to the technical field of road engineering. A fixed base is fixedly connected to the bottom of the supporting stand column, sliding sleeves are fixedly connected to the top end face of the outer side of the fixed base in an annular array mode, detection sliding rods are slidably connected into the sliding sleeves, sliding detectors are fixedly installed at the tops of the outer walls of the sides, facing the supporting stand column, of the sliding sleeves, and a main supporting assembly is fixedly installed in the supporting stand column. According to the roadbed supporting device capable of adjusting settlement, the detection sliding rod, the supporting spring and the sliding detector are combined, the settlement condition of a roadbed can be monitored sensitively in real time, settlement information is accurately fed back, the friction force between monitoring components is reduced through the design of the sliding friction balls, the accuracy of monitoring data is further improved, and the safety of the roadbed is improved. The hydraulic cylinder and the supporting seat are rotationally connected through the ball socket and the ball head, the height of the supporting seat can be flexibly adjusted, the settlement difference value is compensated, and the problems that stability is poor and settlement is difficult to monitor and adjust are solved.

This invention relates to the field of batteries, specifically to a lithium battery structure and its application. The lithium battery structure includes: a housing and encapsulated within the housing, a positive electrode strip, a negative electrode strip, a first positive electrode winding / unwinding mechanism, a second positive electrode winding / unwinding mechanism, a first negative electrode winding / unwinding mechanism, a second negative electrode winding / unwinding mechanism, and an ion-conducting medium; the two ends of the positive electrode strip are respectively wound around the first positive electrode winding / unwinding mechanism and the second positive electrode winding / unwinding mechanism; the two ends of the negative electrode strip are respectively wound around the first negative electrode winding / unwinding mechanism and the second negative electrode winding / unwinding mechanism; the ion-conducting medium is disposed in the junction area; the positive and negative electrode strips sandwich the ion-conducting medium. This invention proposes an innovative paradigm at the core structural level of the battery cell, achieving a breakthrough in the inherent safety of lithium-ion batteries without sacrificing energy density, and laying a solid structural foundation for the development of next-generation ultra-high energy density and high-safety battery systems.

This invention discloses a low-temperature high thermal conductivity polymer composite material and its preparation method, belonging to the field of magnetic confinement nuclear fusion technology. This invention uses a specific process to composite a low-temperature high thermal conductivity filler with a polymer matrix. Compared to the microstructure of conventional polymer thermally conductive composite materials, this material has a quasi-continuous thermally conductive network formed by the low-temperature high thermal conductivity filler surrounding the polymer. At low temperatures (e.g., 4K), when the volume percentage of the thermally conductive filler is 50%, it can reach 100 W·m³. ‑1 ·K ‑1 The low-temperature high thermal conductivity polymer composite material of this invention exhibits significantly higher thermal conductivity than other polymer composite materials under the same thermally conductive filler volume percentage. It can be applied in low-temperature heat and mass transfer fields such as superconducting magnets, and possesses advantages such as lightweight, low-temperature resistance, and ease of processing. Furthermore, the preparation method of the low-temperature high thermal conductivity polymer composite material of this invention is simple and reliable, offering significant advantages in mass production.

The invention discloses a terrace system for reducing settlement of a first floor building terrace, which is characterized in that the terrace system comprises a floor slab, a cushion layer, a ring beam, a constructional column, a bearing wall and a foundation beam, the floor slab is arranged at the lower part of the first floor, and the cushion layer is arranged below the floor slab; the ring beams are arranged on the periphery of the floor slab, and constructional columns are further arranged at the corners, the ends and the large-span middle position of the floor slab. The bearing wall is arranged on the lower portion of the ring beam, and a foundation beam is arranged below the bearing wall. Compared with the prior art, the rigid floor slab is arranged, the load of the rigid floor slab is directly transmitted to the pile foundation through the bearing wall and the foundation beam, and a backfill soil layer is completely bypassed. The settlement of the fill stratum has no influence on the surface of the floor (terrace), the problems of terrace settlement and cracking are fundamentally solved, the terrace system is independent, the design is simplified, and the terrace system is a self-contained system, is separated from a main body frame of a building and does not depend on the main body frame of the building. The influence on the design of the main body frame is avoided, and the design calculation of the floor structure is simplified. According to the terrace system, the ring beams and the constructional columns are arranged, so that differential settlement and temperature stress are effectively resisted, the terrace structure is higher in integrity, and the service life is longer.

The application discloses a kind of alicyclic epoxy resin and liquid crystal screen black UV edge sealing glue composition containing it and preparation method thereof.The alicyclic epoxy resin is synthesized by the following resin and monomer reaction, and the molar ratio of reaction is controlled as monomer A:resin B=2.01:1, monomer D:monomer A=2:2.01, and the structure of alicyclic epoxy resin is as follows.By adding the synthesized alicyclic epoxy resin and regulating the proportion of each component in the liquid crystal screen edge sealing glue composition, on the one hand, the powder sedimentation problem of the system is solved, the stability of the piezoelectric valve glue is ensured, and the system reaches a certain curing hardness, on the other hand, the UV cation curing speed and the curing depth under the condition of black system are improved.The preparation method provided in the application has simple operation process, raw materials are easy to purchase, and can be produced and prepared on a large scale.

The utility model relates to the technical field of inspection well lid well ring, concretely is a kind of steel wire rope reinforced glue combination inspection well lid well ring, including positioning rope, the outside of positioning rope is provided with anti-sinking structure, and the anti-sinking structure includes braiding frame, the outside of braiding frame is provided with braiding net, the outside of braiding net is provided with steel rope, the surface of braiding frame is provided with protective layer, the inside of braiding frame is provided with transmission rod, one end of transmission rod is provided with annular spring, the inside of annular spring is provided with spring plate.The steel wire rope reinforced glue combination inspection well lid well ring, by adding positioning rope, play the role of preventing braiding frame inclination, by the cooperation of braiding frame, braiding net and steel rope, play the role of absorbing pressure, by the cooperation of transmission rod and annular spring, play the role of providing force for braiding frame, by the cooperation of spring plate and positioning shaft, play the role of assisting annular spring recovery deformation.

The invention belongs to the technical field of copper and copper alloy preparation, and relates to a covering agent assisted ceramic particle reinforced copper-based composite material and a preparation method thereof.The preparation method comprises the following steps that a covering agent is added to the surface of a copper melt, and the covering agent contains boric anhydride and charcoal dust; the time for the ceramic particles to penetrate through the covering agent to enter the copper melt is adjusted by controlling the thickness of the covering agent; and adding ceramic particles, and stirring to obtain the covering agent assisted ceramic particle reinforced copper-based composite material. According to the method, a low-cost atmospheric melting process is adopted to replace vacuum melting, and meanwhile, the problems of sedimentation and agglomeration of high-density ceramic particles in a copper melt are solved through the ingenious design of a covering agent; the core of the preparation method is to control the thickness of a covering agent to adjust the time of particles entering a melt, ensure that the particles slowly pass through a high-viscosity covering layer, and prevent the particles from rapidly sinking to the bottom to form a'dead zone '.