Method for manufacturing magnet poles

A method for manufacturing sintered magnet poles, comprising:

• providing a mould having a first opening;
• filling a vitrifiable randomly oriented base material powder into the mould through the first opening;
• closing the first opening with a plate;
• placing the mould with the randomly oriented powder into a magnetic field to align the randomly oriented powder into aligned powder;
• pressing the plate onto the aligned powder to establish a compact that holds the alignment of the aligned powder in place;
• sintering the compact while the compact is oriented over the plate inside the mould to form a sintered magnet pole that adheres to the plate as a result of the sintering process, wherein a gap is formed between the sintered magnet pole and the mould due to shrinkage of the compact during sintering;
• simultaneously pressing the mould inside a die during sintering, wherein the mould is initially provided in a rough shape, and wherein the rough shape is converted to a final shape as a result of said pressing;
• quenching and then heat treating the sintered magnet pole;
• fixing the mould to the plate before or after quenching or heat treatment;
• introducing a filling material into the gap by vacuum injection after fixing the mould to the plate;
• and
• using the protective cover and base plate as part of the final product, wherein the mould ultimately forms a protective cover of the sintered magnet pole and the plate ultimately forms a base plate of a magnet pole piece.