| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a means capable of securing sufficient adhesion strength with a base material without causing a crack and deformation, under an environment where a brake is applied in high speed traveling. <P>SOLUTION: A brake disc 13 for braking a rotation of an axle shaft when a surface of the brake disc is pressed, includes: the disc base material 133 that is attached to wheels rotating integrally with the wheels; and a build-up layer 134 that is stacked with a plurality of layers on a surface of the disc base material and where particles of high-melting metal 137 having higher melting point than the disc base material 133, are dispersed in a matrix material 136. <P>COPYRIGHT: (C)2013,JPO&INPIT |
