2results about How to "No decomposition" patented technology

This application discloses a method for 3D printing aluminum alloy bearing cages, belonging to the field of cage production technology. The method includes the following steps: (1) preparing a matrix powder; (2) pretreating untreated SiC nanoparticles with nickel-phosphorus plating to obtain SiC nanoparticles coated with an average layer thickness of 60-100 nm nickel-phosphorus layer, mixing them evenly with the obtained matrix powder to obtain a powder, and then using laser powder bed 3D printing to perform layer-by-layer printing to obtain a preliminary blank; (3) heat-treating the preliminary blank to obtain the aluminum alloy cage. The aluminum alloy bearing cage prepared by adding SiC nanoparticles and using laser powder bed 3D printing has high hardness and good wear resistance, which not only extends the service life of the cage but also enables rapid short-term production of the cage.

The application discloses an SST solid-state transformer magnetic core and a preparation method thereof. The SST solid-state transformer magnetic core comprises an iron-based nanocrystalline strip substrate, and the front and back surfaces of the iron-based nanocrystalline strip substrate are provided with dense SiO2 insulation coating layers, and the thickness of the SiO2 insulation coating layers is 0.2-1.4 microns. The iron-based nanocrystalline magnetic core has low-frequency magnetic properties, and meanwhile, the full-frequency performance of the magnetic core after cutting can be stably controlled.