| 摘要 |
PROBLEM TO BE SOLVED: To provide a wear-resistant steel capable of exhibiting high wear resistance and having small distortion under a condition free from a lubricant such as a lubricating oil.SOLUTION: A wear-resistant steel of the present invention has, on a surface of a round shaft TS, a structure where a hard powder is bonded to components of the round shaft TS. The structure is formed by embedding treatment of a hard powder into the surface of the round shaft TS, performed by rotating the round shaft TS made of a steel, contacting a tip of a tool 4 with an outer peripheral surface of the round shaft TS, relatively moving the round shaft TS and the tool 4 in the axial direction of the round shaft TS while rotating the tool 4, and supplying the hard powder harder than the round shaft TS to a contact part between the round shaft TS and the tool 4, and then subjecting the round shaft TS, in which the hard powder has been embedded, to surface heat treatment.SELECTED DRAWING: Figure 1 |
