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Structure of magnetostrictive shaft applicable to magnetostriction- type torque sensor for detecting torque applied to rotatable shaft and method for manufacturing the same
Structure of magnetostrictive shaft applicable to magnetostriction- type torque sensor for detecting torque applied to rotatable shaft and method for manufacturing the same
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机译:适用于磁致伸缩型扭矩传感器的磁致伸缩轴的结构及其用于检测可旋转轴的扭矩的方法
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摘要
A structure of a magnetostrictive shaft applicable to a magnetostriction-type torque sensor and a method for manufacturing the same can achieve a high torque sensitivity. A shaft parent material is made of a non-magnetic austenitic series metallic material (YHD50) and a magnetic thin film is made of a magnetostriction material such as Iron- Aluminum series alloy plasma spray coated on the whole outer peripheral surface of the shaft parent material. In a second embodiment, a mechanical working is carried out for the shaft material on the surface of which the magnetostriction material thin film is coated, the worked shaft material is heated under an inert gas atmosphere, and the heated shaft material is immersed into oil under the inert gas atmosphere to perform oil quenching.
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