5results about How to "Evenly sintered" patented technology

This invention discloses a method for preparing beryllium-aluminum alloy composite materials, belonging to the field of alloy composite material technology. The method includes: uniformly mixing beryllium powder with an average particle size of less than 18 μm and aluminum powder with an average particle size of less than 48 μm at a mass percentage of 56-66% and 34-44%, respectively, and then loading the mixture into a mold; placing the mold containing the mixed powder into a sintering furnace and performing vacuum pressure-activated sintering to obtain a beryllium-aluminum sintered ingot; and subsequently performing peeling and mechanical processing on the beryllium-aluminum sintered ingot. This invention's method can suppress the growth of beryllium-aluminum alloy particles, resulting in fine and uniform grains, high interfacial bonding strength, good product performance, uniform heating, rapid heating rate, low sintering temperature, short sintering time, and high production efficiency.

The application provides a preparation method of a zinc-doped lithium nickel cobalt manganese oxide positive electrode material, and the preparation method comprises the following steps: S1, mixing a nickel source, a cobalt source, a manganese source and a zinc source to obtain a mixed salt solution; S2, in an inert atmosphere, mixing the mixed salt solution and a precipitant solution by simultaneously dropping, continuously dropping the precipitant solution to adjust the pH value of the mixed solution to 10-11, performing a co-precipitation reaction, and obtaining a precursor slurry; S3, adjusting the pH value of the precursor slurry in step S2 to 7-8, performing solid-liquid separation, and drying the precipitate to obtain a precursor; and S4, mixing the precursor in step S3 with a lithium source, and sintering to obtain the zinc-doped lithium nickel cobalt manganese oxide positive electrode material. The method provided by the application can reduce the surface residual alkali content of the positive electrode material, and excellent cycle stability is obtained.

The utility model discloses optical fiber preform sintering equipment which comprises an outer furnace body and an inner furnace core tube, a plurality of heating bodies are fixed to the inner wall of the outer furnace body through connecting pieces and are sequentially arranged in the length direction of the inner furnace core pipe. A sealing cover arranged above the opening in a covering manner is mounted at the top of the outer furnace body; a connecting rod is arranged on the sealing cover in a sealing and penetrating manner; the side wall of the outer furnace body is connected with an outer furnace exhaust pipe, the sealing cover is connected with an inner furnace exhaust pipe, the bottom of the inner furnace core pipe is communicated with an air inlet pipe, and the air inlet pipe penetrates out of the outer furnace body in a sealed mode. The utility model has the advantages that the loose body of the prefabricated rod can be uniformly sintered through the heating bodies, and the unburned bad area of the loose body of the prefabricated rod is improved in a targeted manner; the sintering equipment disclosed by the utility model is a vacuum furnace integrating dewatering and sintering functions, and compared with a traditional double-furnace structure, the occupied space of a furnace body is reduced.

A radioactive nuclide 137 A rapid remediation device and method for Cs-contaminated soil includes an inlet for adding an activator and raw materials, a power supply, a microwave device, an auxiliary extrusion rod, a pressure plate containing a spray head, and a solid pressure plate. The solid pressure plate is located above the pressure plate containing the spray head, and the power supply and microwave device are positioned above the solid pressure plate. A spray head is provided on the pressure plate containing the spray head, and the auxiliary extrusion rod passes through the solid pressure plate and enters the spray head to extrude it. The spray head contains the activator and raw materials, and the auxiliary extrusion rod pushes the activator and raw materials into the soil. This application's solution combines microwave and solidification technologies to achieve remediation of soil containing radioactive nuclides. 137 Advantages of Cs in soil remediation.

The utility model provides a kind of zirconium disc sintering furnace, including sintering furnace, moving mechanism, tray loading mechanism and heating assembly, sintering furnace is set up, and sintering furnace inside has the heating chamber of bottom opening setting, moving mechanism is closed and is set in the bottom of heating chamber, and moving mechanism is movably set along transverse direction, tray loading mechanism is connected on moving mechanism, and tray loading mechanism has multiple tray loading spaces of vertical interval arrangement, heating assembly includes multiple heating unit groups built-in in heating chamber, each side wall of heating chamber is all installed and is connected with heating unit group, each heating unit group includes multiple heating units. Such as using the multiple tray loading spaces of tray loading mechanism can simultaneously load more quantity of zirconia disc, greatly improve sintering efficiency, under the action of moving mechanism, convenient transportation, so that zirconia disc is after being transported to heating chamber by each side wall heating unit group around heating, evenly sinter, guarantee better sintering effect.