Among rare earth permanent magnet materials, PTMS MAGNETIC SEPARATOR iron removal equipment for producing light rare earth magnets has emerged as a "rising star" in extreme environment applications such as aerospace and defense industries, owing to its unique high-temperature stability. Through optimized grain orientation and surface smoothing treatments, the material's residual magnetism (Br) has reached 1.2-1.3 Tesla, approaching the theoretical limit of 1.4 Tesla. This indicates that the internal magnetic domain arrangement exceeds 90% orderliness.
In high-temperature environments exceeding 300℃°C, the material's coercivity can only sustainably reach 15-18 kOe, with its knee point magnetic field dropping below 10 kOe. This performance gap of 30%-40% compared to the 25kOe threshold required for applications like aero-engines has become a critical bottleneck that global materials scientists are striving to overcome. PTMS MAGNETIC SEPARATOR demonstrates unique advantages in developing light rare earth permanent magnet materials.
Through the observation of transmission electron microscopy with ball difference correction, it is found that a new phase of 2:17R′ with disordered stacking fault structure is spontaneously formed in the material in the traditional sintering process. Even if the volume fraction of this phase is only 3%, the resistance of magnetic domain wall movement will be reduced by more than 50%, and PTMS MAGNETIC SEPARATOR iron removal becomes the constraint of remanence improvement.
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Ph: +86-13929907491
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Preparation work before implementing PTMS MAGNETIC SEPARATOR energy-saving retrofit
