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A platform for research: civil engineering, architecture and urbanism
MANUFACTURING METHOD OF FERRITE SINTERED MAGNET AND FERRITE SINTERED MAGNET
PROBLEM TO BE SOLVED: To provide an inexpensive ferrite sintered magnet having magnet characteristics equivalent to those of a conventional Ca-La-Co type ferrite sintered magnet.SOLUTION: There is provided a manufacturing method of a Ca-La-Co type ferrite sintered magnet having a small Co content and a Ca content larger than a La content, the method including a material powder mixing process, a calcination process, a grinding process, a molding process, and a firing process. In the firing process, a rate of temperature increase in the temperature range from 800°C to the firing temperature is 600°C/hour to 1000°C/hr.SELECTED DRAWING: Figure 1
【課題】従来のＣａ−Ｌａ−Ｃｏ系フェライト焼結磁石と同等程度の磁石特性を有する低価格なフェライト焼結磁石の提供を可能にする。【解決手段】Ｃｏ含有量が少なく、Ｃａ含有量がＬａ含有量よりも多いＣａ−Ｌａ−Ｃｏ系フェライト焼結磁石を製造する方法であって、原料粉末混合工程、仮焼工程、粉砕工程、成形工程及び焼成工程を含み、焼成工程において、８００℃から焼成温度までの温度範囲における昇温速度が６００℃／時以上１０００℃／時以下である。【選択図】図１
MANUFACTURING METHOD OF FERRITE SINTERED MAGNET AND FERRITE SINTERED MAGNET
PROBLEM TO BE SOLVED: To provide an inexpensive ferrite sintered magnet having magnet characteristics equivalent to those of a conventional Ca-La-Co type ferrite sintered magnet.SOLUTION: There is provided a manufacturing method of a Ca-La-Co type ferrite sintered magnet having a small Co content and a Ca content larger than a La content, the method including a material powder mixing process, a calcination process, a grinding process, a molding process, and a firing process. In the firing process, a rate of temperature increase in the temperature range from 800°C to the firing temperature is 600°C/hour to 1000°C/hr.SELECTED DRAWING: Figure 1
【課題】従来のＣａ−Ｌａ−Ｃｏ系フェライト焼結磁石と同等程度の磁石特性を有する低価格なフェライト焼結磁石の提供を可能にする。【解決手段】Ｃｏ含有量が少なく、Ｃａ含有量がＬａ含有量よりも多いＣａ−Ｌａ−Ｃｏ系フェライト焼結磁石を製造する方法であって、原料粉末混合工程、仮焼工程、粉砕工程、成形工程及び焼成工程を含み、焼成工程において、８００℃から焼成温度までの温度範囲における昇温速度が６００℃／時以上１０００℃／時以下である。【選択図】図１
MANUFACTURING METHOD OF FERRITE SINTERED MAGNET AND FERRITE SINTERED MAGNET
フェライト焼結磁石の製造方法及びフェライト焼結磁石
YAMAMOTO MASATAKA (author) / KAWADA TSUNEHIRO (author)
2018-10-11
Patent
Electronic Resource
Japanese
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