公开(公告)号：US20240286187A1

公开(公告)日：2024-08-29

申请号：US18411424

申请日：2024-01-12

申请人： Spartan Light Metal Products, Inc.

发明人： Christopher A. Sleath ,  Scott P. Meyer ,  Nigel J. Doerge ,  Kevin P. Theophilus ,  Jimmy D. Doty

IPC分类号： B22D17/00 ,  B22D17/20 ,  B22D35/00 ,  C22C21/02 ,  F16D65/12

CPC分类号： B22D17/007 ,  B22D17/20 ,  B22D35/00 ,  C22C21/02 ,  F16D65/125 ,  F16D2250/0007

摘要： A disc brake rotor for a vehicle is provided. The disc brake rotor includes a hat and a friction ring extending circumferentially from the hat. The disc brake rotor is formed of a cast hypereutectic aluminum alloy. The hypereutectic aluminum alloy includes: 14.00 to 25.00 wt. % of silicon; 4.90 to 8.00 wt. % of copper; 0.05 to 0.90 wt. % of nickel; 0.50 to 1.50 wt. % of magnesium; 0.05 to 1.20 wt. % of iron; 0.05 to 1.00 wt. % of manganese; 0.05 to 1.00 wt. % of zinc; 0.05 to 1.20 wt. % of titanium; 0.05 to 1.20 wt. % of zirconium; 0.05 to 1.20 wt. % of vanadium; 0.001 to 0.10 wt. % of phosphorous; and the balance aluminum. The alloy may also include other trace elements such as chromium, lead, and tin in an amount not exceeding 0.20 wt. %. The disc brake rotor may be formed by a high pressure, semi-solid die casting process including rheocasting.