| 摘要 |
PURPOSE:To obtain an alloy excellent in machinability and having high magnetic permeability by adding specific amounts of Si, Al, and particularly Mn to Fe. CONSTITUTION:Raw materials are blended so that they form a composition consisting of, by weight, 4-12% Si, 3-9% Al, 0.2-5% Mn, and the balance Fe, which is melted by use of an alumina crucible in vacuum or in a nonoxidizing atmosphere by means of a high frequency induction furnace to be formed into alloy ingot. |
