PROBLEM TO BE SOLVED: To provide a superconducting magnet device that has improved thermal conductivity inside a winding.SOLUTION: A superconducting magnet device includes a first layer formed by superconducting wires 30 wound in a solenoid shape, a second layer formed by the superconducting wires 30 wound in a solenoid shape on the same axis as the first layer and on the outer diameter side, and a first heat transfer member 45 having liquid-permeating property disposed between the first layer and the second layer. The first layer, the second layer, and the first heat transfer member 45 are fixed by thermoplastic resin 32 that has passed through the first heat transfer member 45 and has cured.SELECTED DRAWING: Figure 1【課題】巻線内部の熱伝導性を向上させた超電導磁石装置を提供する。【解決手段】超電導磁石装置は、超電導線材３０がソレノイド状に巻き回されて形成される第１層と、第１層と同軸上、かつ、外径側に超電導線材３０がソレノイド状に巻き回されて形成される第２層と、第１層と第２層との間に配置され、通液性を有する第１伝熱部材４５とを有し、第１層、第２層および第１伝熱部材４５は、第１伝熱部材４５を通過し硬化した熱可塑性樹脂３２によって固定される。【選択図】図１
