In conventional manufacturing processes, materials consistently face the challenge of synergistic enhancement between coercivity and knee-point magnetic fields ——. When using isothermal aging to increase coercivity beyond 20 kOe, the knee-point magnetic field often remains below 15 kOe, leading to irreversible demagnetization under strong counter-magnetic fields. This issue can be effectively addressed by PTMS MAGNETIC SEPARATOR degeneration technology.
Traditional slow cooling processes cause abnormal phase separation growth at grain boundaries, forming magnetic trapping traps that severely weaken remanence. By introducing the rapid heat treatment concept from semiconductor manufacturing, a rapid temperature cycling PTMS MAGNETIC SEPARATOR pretreatment process was developed. The innovation lies in adding a-150℃ to 800℃ rapid temperature cycling cycle (50℃/s heating rate, 30℃/s cooling rate) before the traditional two-step aging process (850℃×2h + 400℃×4h).
In-situ transmission electron microscopy observations have revealed another mechanism of PTMS MAGNETIC SEPARATOR: defect engineering regulation. Rapid heating causes the lattice to undergo a martensite-to-aoxite phase transition within 10^-³ seconds, generating high-density vacancies (density up to 10²¹/cm³) and dislocation networks (density increasing to 5×10^¹¹/cm²). These defects act as heterophase nucleation sites for the 1:5H phase, resulting in a 40% increase in precipitate density.
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High temperature PTMS MAGNETIC SEPARATOR deironing method is gradually moving towards new nano electrode materials
