One Of The High Level Alloys Ferro Silicon Aluminum

Inductively coupled plasma atomic emission spectrometry (ICP-AES) can be used to determine the content of Mn, P, Al, Cr in low-alumina ferro silicon, after wet treatment, through a series of experiments, the appropriate working conditions of the instrument are selected for determination, and the recovery rate of the method is between 95%-105%. The relative standard deviation is less than 5%, and the method is fast, accurate and precise.

1.Pure iron, ferrosilicon, aluminum particles are put into an intermediate frequency furnace, melted into a liquid state, and atomized with nitrogen. The atomized ferro-silicon-aluminum powder is graded by a grading wheel, and then secondary classification is carried out by a cyclone classifier. The cyclone classifier introduces the coarser iron-silicon-aluminum powder in the fine-grained iron-silicon-aluminum powder into the heat treatment furnace distributor, and the fine-grained iron-silicon-aluminum powder enters the separation air duct and is divided into two parts, a part of the fine-grained iron-silicon-aluminum powder enters the heat treatment furnace distributor, and the other part enters the fine-particle recycling silo through the bag dust collector. After rapping and mixing, the iron-silicon-aluminum powder is sent to the heat treatment furnace for annealing by the heat treatment furnace distributor. At the same time of annealing, a magnetic field is applied parallel to the surface of the heat treatment furnace substrate. The prepared iron-silicon-aluminum powder has anisotropic magnetism, small internal stress, and the whole production process is carried out under the protection of nitrogen, the product is almost not oxidized, and the microscopic crystal form of iron-silicon-aluminum powder products is conducive to improving the magnetic properties of iron-silicon-aluminum soft magnetic materials.

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