The invention discloses a manufacturing process for iron-
silicon-aluminum
alloy powder and belongs to the technical field of
metal soft magnetic materials. The manufacturing process for the iron-
silicon-aluminum
alloy powder includes the manufacturing steps that A, raw materials are weighed and mixed; B, a
crucible is preheated; C, iron and
silicon are added, aluminum is added after the iron and the silicon are completely molten, silicon-
calcium alloy is added after the aluminum is molten, and the mixture is cooled into an iron-silicon-aluminum alloy block after boiling; D, the alloy block is crushed into alloy materials of 0.1-0.8 cm<2>; E, the alloy materials are subjected to ring milling, so that
powder smaller than 60 meshes is obtained; F, ethyl
alcohol is added,
wet milling is conducted for 1-30 h, and then
solid powder is obtained; G, open-area baking is conducted for 1-2 h at the temperature of 30-80 DEG C, and then screening is conducted; and H, the screened powder is placed in an annealing furnace with protective gas to be subjected to annealing heat treatment for 1-2.5 h at the temperature of 850-890 DEG C. By manufacturing the iron-silicon-aluminum alloy powder according to the above steps, burning loss of the
aluminum can be reduced, the production cost is reduced, and an oven is prevented from catching a fire and exploding.