Automobile brake disc and manufacturing method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 宁波精磊汽车零部件有限公司
- Publication Date
- 2013-08-28
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 
Figure 2
Abstract
Description
technical field
[0001] The invention relates to the field of casting engineering materials, in particular to an automobile brake disc and a preparation method thereof. Background technique
[0002] The fins 2 of the brake disc 1 used at the present stage are straight spokes, such as figure 1 As shown, the brake gas dissipates quickly through these fins, and the heat taken away is limited, which will cause a large amount of heat generated during braking to accumulate at the brake disc, which will have a thermal effect on the brake disc and reduce the life of the brake disc.
[0003] At the same time, the brake discs used at this stage are generally made of gray cast iron. The manufacturing method of gray cast iron is simple and easy to produce, but gray cast iron also has serious defects, that is, weak processing ability, low tensile strength and poor shear stress. Therefore, the brake disc made of gray cast iron is easy to crack, has low comprehensive thermal fatigue resis...