| 摘要 |
The invention relates to a method and tools for producing a braking band ( 2 ) of a disk-brake disk ( 1 ) by casting, in which the disk comprises at least two plates ( 3, 3 ') connected to one another by connecting elements ( 4 ) forming an internal air-duct ( 7 ) for the cooling of the braking band ( 2 ). With the method and the tools, a disk is produced in which at least one of the plates ( 3, 3 ') has, in its surface ( 8, 8 ') defining the air-ducts ( 7 ), at least one groove ( 10, 10 ') having a cross-section which becomes wider towards the air-duct. |
