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Iron-rich ultrahigh Bs material sintering process
The invention discloses an iron-rich ultra-high Bs material sintering process, which comprises the following steps: 1) carrying out sufficient solid-phase reaction on an iron-rich ultra-high Bs material in a high-temperature section, and adding relatively high oxygen content and other parameters; (2) performing a deoxidation reaction on the excess Fe, and providing low oxygen in a heating section; (3) carrying out a heat preservation section, carrying out catalytic deoxidation reaction, and carrying out constant-value setting on the temperature; (4) keeping a low-oxygen environment in a cooling section, adjusting the cooling section according to an atmosphere type, wherein the oxygen content is lower than that of a conventional sintering process, and the whole sintering density is improved; and 5) adding rare earth metal elements and the iron-rich ultrahigh Bs material for sintering according to the steps 1)-4). The excessive Fe2O3 in the manganese-zinc ferrite is ensured to fully release oxygen and be reduced, a manganese-zinc ferrite sintered body is ensured to have enough sintering density, the Mn-Zn ferrite with high magnetic flux density is obtained, and the saturation magnetic flux density of the magnetic core material is effectively improved.
本发明公开一种富铁超高Bs材料烧结工艺，1）在高温段对富铁超Bs材料进行充分的固相反应，加以较高的氧含量和其它参数；步骤2）过剩的Fe进行脱氧反应，升温段提供低氧；3）进行保温段，催化脱氧反应，对温度进行定值设定；4）降温段保证低氧环境，按照气氛式对降温段进行调节，其氧含量要低于常规烧结工艺，提高整个的烧结密度；5）加入稀土金属元素和富铁超高Bs材料一起进行烧结，烧结步骤按照步骤1）‑步骤4）。保证锰锌铁氧体过剩的Fe2O3充分放氧被还原，锰锌铁氧体烧结体足够烧结密度，获得高磁通密度的Mn‑Zn类铁氧体，有效提高磁心材料的饱和磁通密度。
Iron-rich ultrahigh Bs material sintering process
The invention discloses an iron-rich ultra-high Bs material sintering process, which comprises the following steps: 1) carrying out sufficient solid-phase reaction on an iron-rich ultra-high Bs material in a high-temperature section, and adding relatively high oxygen content and other parameters; (2) performing a deoxidation reaction on the excess Fe, and providing low oxygen in a heating section; (3) carrying out a heat preservation section, carrying out catalytic deoxidation reaction, and carrying out constant-value setting on the temperature; (4) keeping a low-oxygen environment in a cooling section, adjusting the cooling section according to an atmosphere type, wherein the oxygen content is lower than that of a conventional sintering process, and the whole sintering density is improved; and 5) adding rare earth metal elements and the iron-rich ultrahigh Bs material for sintering according to the steps 1)-4). The excessive Fe2O3 in the manganese-zinc ferrite is ensured to fully release oxygen and be reduced, a manganese-zinc ferrite sintered body is ensured to have enough sintering density, the Mn-Zn ferrite with high magnetic flux density is obtained, and the saturation magnetic flux density of the magnetic core material is effectively improved.
本发明公开一种富铁超高Bs材料烧结工艺，1）在高温段对富铁超Bs材料进行充分的固相反应，加以较高的氧含量和其它参数；步骤2）过剩的Fe进行脱氧反应，升温段提供低氧；3）进行保温段，催化脱氧反应，对温度进行定值设定；4）降温段保证低氧环境，按照气氛式对降温段进行调节，其氧含量要低于常规烧结工艺，提高整个的烧结密度；5）加入稀土金属元素和富铁超高Bs材料一起进行烧结，烧结步骤按照步骤1）‑步骤4）。保证锰锌铁氧体过剩的Fe2O3充分放氧被还原，锰锌铁氧体烧结体足够烧结密度，获得高磁通密度的Mn‑Zn类铁氧体，有效提高磁心材料的饱和磁通密度。
Iron-rich ultrahigh Bs material sintering process
富铁超高Bs材料烧结工艺
ZHANG JINLONG (author) / LIU GUOPING (author) / XU QINGQING (author) / JI QINGQING (author) / HUANG JUAN (author)
2022-02-25
Patent
Electronic Resource
Chinese
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