Steel-Composite Brake Drum, Invention Patent No.: ZL201210061027.2
1. The outer steel shell is made from custom-designed, high-strength, high-toughness steel plates using an integral spin-forming process. 2. The inner braking surface is crafted from highly wear-resistant gray iron via a centrifugal casting process. 3. A metallurgical fusion technique is employed to seamlessly bond the two distinct steel materials together. 4. Performance surpasses that of traditional all-cast iron brake drums, while achieving an average weight reduction of up to 20%.
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