1, the production cost is different: the production cost of steel ring is low, the process is relatively simple, and it is difficult to repair after deformation; Aluminum alloy ring is complicated in processing technology, easy to break after impact and difficult to repair.
2. Different weight: the aluminum ring has good rigidity and light weight. Compared with aluminum rings, steel rings are much heavier.
3. Different hardness: the high density of steel rings leads to heavy weight, which leads to the increase of tire dynamic balance jitter at high speed. The heavy weight leads to large driving resistance when the cold car is started, which increases the fuel consumption during starting; Aluminum alloy ring: high hardness and lighter weight than steel ring. When the car runs at high speed, the tire dynamic balance jitter is smaller than that of the steel ring, and the fuel consumption at the start is also smaller than that of the steel ring.
? Extended data:
Aluminum ring is the inner metal ring of middle and high-grade car tires, which is used in high-grade cars. Aluminum is light and beautiful, with silver powder specially used for automobile spraying, and the brightness is more noticeable after varnishing. It is very beautiful as an appearance ornament. As an automobile tire, it has deviation in hardness and is easy to deform, but it can be repaired.
Nowadays, middle and high-end cars are all vacuum tires, and the premise must be aluminum rings, so its tightness is enough. Economical cars on the market are steel rims, which have good hardness, but are not beautiful enough, but the cost is low. If they are broken, they need to be replaced, while aluminum rims are relatively high in Chen Ben. The aluminum rims of Porsche 9 1 1 are about 1W-2W. Ordinary mid-to high-end cars are cheaper, such as CRV of Dongfeng Honda, whose aluminum ring is about 1000.
Reference details: Baidu Encyclopedia-Aluminum Ring