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sales@tujinmagnet.com
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+86-18858010843
Temperature and humidity, as external environmental factors, have significant and complex effects on the magnetic properties of Rare Earth Cylinder Rod Magnets. These effects are not only related to the working efficiency of the magnets, but also directly affect their stability and life in various application scenarios.
Rare Earth Cylinder Rod Magnets will undergo thermal expansion at high temperatures. If the temperature changes drastically or unevenly, it may cause internal thermal stress, which will affect the structural integrity of the magnet, and even cause cracking or breakage in severe cases. As the temperature increases, the thermal motion of the atoms inside the magnet intensifies, and the arrangement of the magnetic domains may change, resulting in a decrease in the overall magnetic properties, especially the decrease in magnetization intensity and coercive force. Each magnet material has a specific Curie temperature, and when the temperature reaches or exceeds this critical point, the magnet will lose its magnetism. Although rare earth magnets have relatively high Curie temperatures, long-term exposure to high temperatures may gradually weaken their magnetism.
Implement effective temperature control in the working environment of the magnet to avoid excessive temperature or rapid changes. Select rare earth magnet materials with high Curie temperatures based on application requirements. Through reasonable thermal design, such as adding a heat dissipation structure, ensure that the magnet works within the allowed temperature range.
Excessive humidity will accelerate the corrosion and oxidation process on the surface of rare earth magnets, forming a non-magnetic oxide layer, which not only reduces the effective magnetic flux area, but may also cause damage to the internal structure of the magnet. The adsorption of water molecules can change the charge distribution on the surface of the magnet, thereby affecting its electromagnetic properties. If exposed to a humid environment for a long time, moisture may penetrate into the interior of the magnet, affecting the stability of the magnetic domains and resulting in a decrease in magnetic performance.
Rare Earth Cylinder Rod Magnets are surface-coated to improve their corrosion resistance. During storage and use, keep the environment dry and use a dehumidifier or sealed packaging to reduce the impact of humidity. Regularly check the surface condition of the magnet, clean the dirt and oxides on the surface in time, and keep it in good working condition.
In order to ensure that Rare Earth Cylinder Rod Magnets can maintain stable magnetic properties under various conditions, it is necessary to comprehensively consider the effects of temperature and humidity, and take targeted measures to reduce the effects of these factors. This not only involves material selection and processing, but also includes the design and maintenance of the use environment. It is a systematic project.
No.107 Yunshan Industry Park, Sanqishi Town, Yuyao, Ningbo, Zhejiang 315412, China
+86-18858010843
sales@tujinmagnet.com
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