釹鐵硼磁鐵 燒結(jié)：

燒結(jié)釹鐵硼磁鐵是一種有色磁性材料，由于其具有優(yōu)異的磁性能、耐熱性和耐腐蝕性，被廣泛應(yīng)用于電機、變頻器、空調(diào)、電視、電腦和其他電子設(shè)備中。燒結(jié)釹鐵硼磁鐵的制備方法包括燒結(jié)和氧化燒結(jié)。

燒結(jié)法——燒結(jié)法的基本原理是將鐵粉、釹粉、硼粉和其他添加劑混合，放入高溫灶中，在高溫下燒結(jié)成磁性材料。燒結(jié)過程中，釹粉在燒結(jié)溫度范圍內(nèi)熔融，分散在鐵粉中，形成磁性材料。燒結(jié)后的釹鐵硼磁鐵具有較高的磁性能，但有一定的燒結(jié)溫度要求，燒結(jié)溫度過高會導(dǎo)致鐵粉形成多孔結(jié)構(gòu)、磁性損失和燒結(jié)塊脆性。

氧化燒結(jié)法——氧化燒結(jié)法是在燒結(jié)過程中，加入適量的氧化劑，在氧化劑的作用下，形成一層氧化膜，使燒結(jié)后的釹鐵硼磁鐵表面光潔，具有良好的磁性能。氧化燒結(jié)法可以提高燒結(jié)塊的強度，降低燒結(jié)溫度，減少燒結(jié)時間，節(jié)約能源。

Sintered neodymium-iron-boron magnet is a kind of colored magnetic material, which is widely used in motors, frequency converters, air conditioners, televisions, computers and other electronic devices because of its excellent magnetic properties, heat resistance and corrosion resistance. The preparation of sintered neodymium-iron-boron magnet includes sintering and oxidation sintering.

Sintering method - the basic principle of sintering method is to mix iron powder, neodymium powder, boron powder and other additives into a high-temperature furnace and sinter them into magnetic materials at high temperature. During sintering, neodymium powder melts and disperses in iron powder to form magnetic materials within the sintering temperature range. The sintered neodymium-iron-boron magnet has high magnetic properties, but there is a certain sintering temperature requirement. If the sintering temperature is too high, the iron powder will form a porous structure, magnetic loss and sintered block brittleness.

Oxidation sintering method - oxidation sintering method is to add a proper amount of oxidant in the sintering process, and under the action of the oxidant, a oxide film is formed on the surface of the sintered neodymium-iron-boron magnet, which makes the surface of the sintered neodymium-iron-boron magnet smooth and has good magnetic properties. Oxidation sintering method can improve the strength of sintered block, reduce sintering temperature, reduce sintering time and save energy.

常州釹鐵硼磁鐵價位走勢：

常州釹鐵硼磁鐵是一種新型的磁性材料，具有良好的熱穩(wěn)定性和高磁飽和度，因此在電機、電子電器、航天航空等領(lǐng)域有著廣泛的應(yīng)用。近年來，常州釹鐵硼磁鐵市場價格一直保持穩(wěn)定，價格變動不大。2018年，常州釹鐵硼磁鐵的價格維持在11000元/噸左右，2019年價格也維持在11000元/噸左右，2020年上半年因產(chǎn)能過剩和出口減少，價格穩(wěn)步下跌，最低跌到了10000元/噸，但隨著國內(nèi)市場復(fù)蘇，價格又穩(wěn)步上漲，最高達到了11500元/噸。現(xiàn)在，常州釹鐵硼磁鐵的價格也都在11000元/噸左右，在2020年下半年價格也有望穩(wěn)步上漲。