Inorganic composite material IV for permanent magnet material and preparation method thereof

The invention relates to an inorganic composite material IV for a permanent magnet material and a preparation method thereof. The inorganic composite material IV is prepared from, by weight, 2-6% of SrO, 2-7% of BaO, 0.1-0.5% of K2O, 0.5-1.2% of Mn2O3, 0.3-0.7% of Pb3O4, 0.3-0.8% of Sb2O5, 0.1-0.4% of PbO2 and the balance Fe2O3. The preparation method comprises the steps of material dosing, breaking, screening, sintering and grinding, a permanent magnet alloy prepared from the inorganic composite material IV for the permanent magnet material and other alloys has the good heat stability and hasthe good magnetic performance, and the preparation method of the permanent magnet alloy is simple in technology, low in production cost and suitable for industrial production. 本发明涉及种用于永磁材料的无机复合材料IV及其制备方法，无机复合材料IV原料成分及重量百分含量为：SrO 2～6％，BaO 2-7％，KO 0.1-0.5％，MnO0.5-1.2％，PbO0.3-0.7％，SbO0.3-0.8％，PbO0.1-0.4％，余量为FeO。制备方法步骤包括配料、破碎过筛、烧结、研磨，使用该用于永磁材料的无机复合材料IV并结合其他合金制备的永磁合金具有热稳定性好，并具有良好的磁性能，永磁合金的制备方法工艺简单，生产成本低，适于工业化生产。