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同時還常常在磁極間安排種種形狀的感到鐵磁介質(如鐵盤、鐵輥、齒板、鐵球及鋼毛等),它們成為鐵磁路的一部門.如許的磁係的選別間隙或為單層或為多層,但間隙都很小,磁通大要是直行的,受到的阻力小,且磁通較會合,磁通密度大,磁場強度高;同時感到磁極外貌曲率較大,形成較高的磁場梯度.由於對磁性礦粒孕育發生的磁力即是磁場強度與磁場梯度的乘積,以是強磁場磁選性能孕育發生很大的磁力.
1 礦物方麵：鏡鐵礦.錳礦.褐鐵礦.赤鐵礦.鉻鐵礦.菱鐵礦.假象赤鐵礦.硬錳礦.鉭铌礦.高嶺土除鐵.石英砂除鐵.鉀鈉長石除鐵.硫酸渣選鐵.鋼渣選鐵.赤泥選鐵等多種弱磁性礦物的提純作業及非磁性礦物的除鐵或選鐵作業.
