7results about How to "Export uniform" patented technology

The invention provides a copolymerization modified shortened polyacrylonitrile-based carbon fiber pre-oxidation device, and relates to the technical field of heating oxidation equipment.The copolymerization modified shortened polyacrylonitrile-based carbon fiber pre-oxidation device comprises a heating pool, a treating fluid is contained in the heating pool, a material mixing pot is arranged in the heating pool, a shaking unit is arranged in the heating pool, and fiber filaments can be pressed into the material mixing pot through the shaking unit; a vibration unit is arranged in the mixing pot and can vibrate the treating fluid to enable the treating fluid to wash the fibers to be uniformly oxidized. Through cooperation of the shaking unit and the shaking unit, a double homogenization system for dynamically shaking fiber tows and actively shaking the fiber tows by the treating fluid is constructed, so that the treating fluid forms directional flow and continuously washes the fiber tows, and the inner and outer layers of the tows and single fibers can be in full contact with the treating fluid; the problems of large pre-oxidation degree difference of inner and outer layers of tows, serious skin-core structure and concentrated local heat release easily occurring in a traditional dipping device are solved.

This invention discloses a high-heat-dissipation, high-current variable vacuum capacitor, comprising a housing and a moving electrode assembly, a metal bellows, and a stationary electrode, all disposed within the housing. The housing includes an insulating cylinder, a moving end base, and a stationary electrode disk. The moving end base is provided with a metal connecting cylinder. The moving electrode assembly includes a moving sub-disk and moving electrodes fixed to the moving sub-disk. The metal bellows is sealed between the moving end base and the moving sub-disk. The stationary electrode is fixed to the inner end face of the stationary electrode disk. A metal conductive component is fixedly mounted on the moving electrode assembly. The metal conductive component has sliding contacts that elastically abut against the inner wall of the metal connecting cylinder using their own elasticity. These contacts maintain sliding contact with the metal connecting cylinder throughout the entire stroke of the moving electrode assembly moving axially, thereby forming a conductive and heat dissipation path in parallel with the metal bellows between the moving electrode assembly and the moving end base. This invention can increase the conductive and heat dissipation areas of the vacuum capacitor, reduce the operating temperature, and increase the current carrying capacity.

The utility model discloses a direct nested ultrasonic probe coupling agent storage device, which comprises a probe, and is characterized by further comprising a storage arranged on the probe, an injection port is arranged on the storage, the storage is communicated with the injection port, a coupling agent is injected into the storage through the injection port, and the injection port is communicated with the storage. The storage device is provided with a ball, the ball rolls to bring out the coupling agent, the storage device is further provided with a limiting plate connected with the ball in a clamping mode, the storage device is provided with a storage bin for storing the coupling agent, and the limiting plate is arranged in the storage bin. According to the direct nested ultrasonic probe coupling agent storage device, the storage device is directly arranged on the probe, a coupling agent is conveniently injected through the injection port, and the coupling agent is taken out through rolling of the ball, so that the coupling agent coating process is greatly simplified, a doctor does not need to hold a coupling agent bottle by hand for repeated operation, the operation continuity is guaranteed, and the inspection efficiency is improved.

This application relates to the field of solar cell technology, and in particular to solar cells and their fabrication methods, and photovoltaic modules. In the embodiments of this application, by configuring the electrodes in the first region of a target surface as including a stacked seed layer and a metal layer, and setting the projected area of ​​the seed layer on the target surface to be smaller than the projected area of ​​the metal layer on the target surface, the seed layer is used to achieve electrical connection between the metal layer and the solar cell substrate. Simultaneously, the distribution density of the seed layer per unit area in the first region is configured to change in a positive correlation with the sheet resistance per unit area in the first region. Therefore, overall, the distribution density of the seed layer is greater in areas with higher sheet resistance in the first region and greater in areas with lower sheet resistance than in the first region, thereby improving current transmission efficiency, increasing cell conversion efficiency, and ultimately improving the performance of the solar cell.

The utility model discloses anti-skid particle filling and paving equipment for artificial turf, which belongs to the technical field of anti-skid particle filling and paving and comprises a material paving machine and a material scattering port, a plurality of moving wheels are fixedly mounted at the bottom of the material paving machine, a push rod is fixedly mounted on one side of the material paving machine, and the material scattering port is fixedly mounted on the other side of the material paving machine; the mixing and scattering mechanism is used for mixing and scattering the anti-skid particles and the quartz sand and is arranged on one side of the spreading machine; wherein the mixing and scattering mechanism comprises a mixing bin which is fixedly mounted in the spreading machine. By means of the mode, the mixing bin and the mixing assembly are matched, anti-skid particles and quartz sand are fully mixed, it is guaranteed that materials are uniform before filling and paving, the particle proportion of all areas is stable in the discharging process of a material scattering opening, the measuring assembly accurately controls the filling and paving amount according to the construction standard, and it is guaranteed that the filling thickness reaches the standard; the overall durability and the use performance of the lawn system are improved.

The present invention discloses a wide-temperature-range highly insulating rubber composite material for extreme environments and the prepared wide-temperature-range highly insulating rubber composite material, which relates to the technical field of rubber composite materials and aims to solve the technical problem of heat accumulation caused by poor thermal conductivity of fillers in silicone rubber-based composite materials. In the present invention, surface-hydroxylated modified boron nitride nanosheets are used to replace traditional fumed silica. The boron nitride nanosheets themselves are two-dimensional nanomaterials that combine excellent insulation, extremely high thermal conductivity, and good mechanical strength, thus solving the problem of heat accumulation caused by poor thermal conductivity of fillers in silicone rubber-based composite materials.

The invention discloses a waste heat recovery heat exchanger and a small gas turbine. Comprises: a housing arranged in an annular shape; the multiple heat exchange pipes extend in the axis direction of the shell, and the multiple heat exchange pipes are tightly arranged in the shell; a first channel used for flowing of a low-temperature medium is formed in the heat exchange pipe, an opening of the first channel is formed in the end face of the shell, a second channel used for flowing of a high-temperature medium is formed outside the heat exchange pipe, and an opening of the second channel is formed in the side face of the shell. And the low-temperature medium and the high-temperature medium exchange heat through the pipe wall of the heat exchange pipe. The compact degree and the heat exchange efficiency of the heat exchanger can be improved, and the flow resistance can be reduced.