热处理对声磁防盗标签性能的影响

Influence of Annealing on Performance of Magneto-acoustic Markers

本文采用熔融快速淬火制备了Fe24Co11.82Ni47.3Si1.47B15非晶条带,经不同条件退火处理以提高其响应性能,研究了退火条件对条带用于磁机械电子监视系统时声磁性能的影响。结果表明退火温度在320℃时具有最大共振幅值,另外,磁场垂直于条带面退火有利于增强条带的声磁性能。

Amorphous Fe24 Co11.82 Ni47.3 Si1.47 B15 ribbons used for magnetomechanical electronic article surveillance system are prepared by rapid solidification. Then, they are annealed at different conditions to improve their response performance. The influence of annealing condition on the ribbons performance has been investigated. Results show that the highest resonance amplitude in the ribbon is obtained annealing at 320 ℃. It is favor of improving acoustic magnetic properties of ribbons when the annealing magnetic field is perpendicular to the ribbons surface.