MAGNETIZATION DEVICE

To provide a magnetization device capable of obtaining sufficient magnetization performance even in a long material in which the size of a cross section and the position of a cross sectional center are different depending on a longitudinal position.SOLUTION: A magnetizing device 100 comprises a plurality of magnetization coils 1 arranged side by side along a longitudinal direction of a long material S1 and having a dimension of being capable of inserting the entire length of the long material, and a driving means 2 that moves the plurality of magnetization coils in an arbitrary direction in a plane orthogonal to the longitudinal direction of the long material. The driving means moves the plurality of magnetization coils so that when viewed from the longitudinal direction of the long material, mutually overlapping regions 12 inside a magnetization coil group 10 composed of N (N≥2) magnetization coils arranged continuously out of the plurality of magnetization coils approach cross sections Sa, Sb of a portion of the long material at the position where the magnetization coil group is arranged.SELECTED DRAWING: Figure 1 【課題】長手方向の位置によって断面の大きさや断面中心の位置が異なる長尺材であっても十分な磁化性能を得ることができる磁化装置を提供する。【解決手段】磁化装置１００は、長尺材Ｓ１の長手方向に沿って並べて配置され、長尺材の全長を挿通可能な寸法を有する複数の磁化コイル１と、複数の磁化コイルを長尺材の長手方向に直交する平面内で任意の方向に移動させる駆動手段２と、を備える。駆動手段は、長尺材の長手方向から見た場合に、複数の磁化コイルのうち連続して配置されたＮ（Ｎ≧２）個の磁化コイルからなる磁化コイル群１０の内部の互いに重複する領域１２が、磁化コイル群が配置された位置での長尺材の部位の断面Ｓａ、Ｓｂに近づくように、複数の磁化コイルを移動させる。【選択図】図１