Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Secondary sintering process of high-permeability MnZn ferrite
The invention discloses a secondary sintering process of high-magnetic-conductivity MnZn ferrite, and relates to the technical field of high-magnetic-conductivity MnZn ferrites.The secondary sintering process comprises the steps that a MnZn ferrite magnetic core oxidized or large in size in the primary sintering process is placed in a kiln to be heated, the temperature is increased from the room temperature to the highest secondary sintering temperature, and the air or oxygen atmosphere is kept; the highest holding temperature of the secondary sintering is +/-50 DEG C of the highest holding temperature of the primary sintering, the holding time is 0.5-5 hours, the atmosphere in the holding stage is air or oxygen atmosphere, and the cooling process can be controlled according to the primary sintering process. By implementing the method, the MnZn ferrite waste magnetic core with abnormal surface color and low magnetic conductivity due to oxidation can be changed into the magnetic core with normal surface color and high magnetic conductivity, and the product with large size due to low primary sintering temperature or short heat preservation time can be changed into the magnetic core with the size meeting the specification requirement after secondary sintering.
本发明公开了一种高磁导率MnZn铁氧体二次烧结工艺，涉及高磁导率MnZn铁氧体技术领域，将一次烧结过程中被氧化或尺寸偏大的MnZn铁氧体磁心置于窑中加热，从室温升至二次烧结最高保持温度为空气或氧气气氛，二次烧结的最高保持温度为一次烧结最高保持温度±50℃，保温时间为0.5‑5h，保温阶段气氛为空气或氧气气氛，降温工艺可按一次烧结工艺进行控制。通过实施本发明，可以将因氧化而表面颜色异常和磁导率低的MnZn铁氧体废磁心变为表面颜色正常和高磁导率的磁心，也可使因一次烧结温度偏低或保温时间偏短而出现尺寸偏大的产品经二次烧结后变为尺寸符合规格要求的磁心。
Secondary sintering process of high-permeability MnZn ferrite
The invention discloses a secondary sintering process of high-magnetic-conductivity MnZn ferrite, and relates to the technical field of high-magnetic-conductivity MnZn ferrites.The secondary sintering process comprises the steps that a MnZn ferrite magnetic core oxidized or large in size in the primary sintering process is placed in a kiln to be heated, the temperature is increased from the room temperature to the highest secondary sintering temperature, and the air or oxygen atmosphere is kept; the highest holding temperature of the secondary sintering is +/-50 DEG C of the highest holding temperature of the primary sintering, the holding time is 0.5-5 hours, the atmosphere in the holding stage is air or oxygen atmosphere, and the cooling process can be controlled according to the primary sintering process. By implementing the method, the MnZn ferrite waste magnetic core with abnormal surface color and low magnetic conductivity due to oxidation can be changed into the magnetic core with normal surface color and high magnetic conductivity, and the product with large size due to low primary sintering temperature or short heat preservation time can be changed into the magnetic core with the size meeting the specification requirement after secondary sintering.
本发明公开了一种高磁导率MnZn铁氧体二次烧结工艺，涉及高磁导率MnZn铁氧体技术领域，将一次烧结过程中被氧化或尺寸偏大的MnZn铁氧体磁心置于窑中加热，从室温升至二次烧结最高保持温度为空气或氧气气氛，二次烧结的最高保持温度为一次烧结最高保持温度±50℃，保温时间为0.5‑5h，保温阶段气氛为空气或氧气气氛，降温工艺可按一次烧结工艺进行控制。通过实施本发明，可以将因氧化而表面颜色异常和磁导率低的MnZn铁氧体废磁心变为表面颜色正常和高磁导率的磁心，也可使因一次烧结温度偏低或保温时间偏短而出现尺寸偏大的产品经二次烧结后变为尺寸符合规格要求的磁心。
Secondary sintering process of high-permeability MnZn ferrite
一种高磁导率MnZn铁氧体二次烧结工艺
IM NAM YEONG (Autor:in) / ZHU JIANWEN (Autor:in) / BAO WUMEI (Autor:in)
16.04.2024
Patent
Elektronische Ressource
Chinesisch
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