| 摘要 |
PURPOSE:To manufacture a soft ferrite product having excellent magnetic characteristics developing no defects such as cracking, etc. CONSTITUTION:Within this manufacturing method of soft ferrite by adding an organic base material to an oxide material for granulation step and then mainly through the molding step and baking step, the baking step during the temperature raising time is to be performed while maintaining the oxygen concentration of in-furnace atmosphere on the level not exceeding the oxygen concentration in the air in the temperature range wherein the organic material added to a molded body is decomposed for removal. Through these procedures, this soft ferrite product having excellent magnetic characteristics developing no cracking defect at all can be manufactured. |
