Brake discs basically have no heat treatment, and all stress is relieved by casting and heat preservation.
The surface treatment of the brake disc is mainly for its anti-rust effect. On the one hand, it is to prevent rust before installation, and on the other hand, it is to prevent rust on the non-contact surface. The main anti-rust methods are:
1. Anti-rust oil;
2. Vapor phase anti-rust, through anti-rust paper and anti-rust bag;
3. Phosphating, zinc-iron series, manganese series phosphating, etc.;
3. Spray paint, using water-based anti-rust paint;
4. Dacromet and Geomet;
5. For electrophoretic paint, first do all electrophoretic paint, and then process the braking surface;
6. FNC carbonitriding
FNC is the latest treatment method at present, and its main function is to prevent rust. The carbonitriding layer generally requires 0.1-0.3 mm
The surface treatment of the brake disc is mainly to solve the rust problem. There is no way to completely solve the rust problem of cast iron. The place that is not in contact with the brake pad can be delayed by other methods, but the place that is in contact with the brake pad cannot be treated with anti-rust treatment. , so don’t worry about slight rust on the brake surface, you can remove it by gently stepping on the brake pedal, and try to avoid emergency braking!
Post time: Apr-12-2023
