Car wheels are the load-carrying weight, driving the root of the road, want the car to run fast, no good group of wheels can not be. The wheels are also dividend dividend several parts, tires, hubs, wheel rings are indispensable. Let's look at the changes that the car wheel rim has experienced in the development of these years, and take you from the wooden wheel rim to the carbon fiber wheel.
The growth history of car wheel circle, from wooden wheel ring to carbon fiber wheel ring
Six products of the development of car wheel rim
1. Wooden wheel: the car is evolved through the carriage, the first car wheel rim is also made of wood. Wood spokes and inner frames are selected for wooden wheel rings, and then fixed with sticker outer frame. The manufacturing process of wooden wheel ring is complex, the detection workers' craft, and the bearing capacity is limited, simple corrosion and damage, and the service life is not long, so it is replaced by iron wheel.
2. Iron wheel: iron wheel rings appeared in the decade or so, and improved from wooden ones. Therefore, the craft method of making wooden wheel rings has been retained, with high production requirements and high cost. The rigidity and durability of all rings are better than that of wooden ones. Iron wheel ring is also simple corrosion, simple rust, its own thermal conductivity is also relatively poor, after a period of popularity, aluminum alloy wheel instead.
3. Aluminum alloy wheel: aluminum alloy wheel is a new type of wheel ring made of aluminum alloy made by adding copper, magnesium, manganese, silicon, iron and zinc, which is mainly made of aluminum. It has two kinds of casting and forging processes. Aluminum alloy wheel has a very big advantage, namely, light weight, about 50% lighter than iron wheel, can reduce the spring component and wheel resistance, greatly improve driving and handling. Aluminum alloy wheel ring is good in rigidity and durability, and good heat conductivity. It is one of the data of the main flow car wheel rim.
However, aluminum alloy wheel is also defective, which is brittle, and when it is impacted, the aluminum alloy wheel is simply broken. Nevertheless, the price of aluminum alloy wheel is higher than that of iron wheel.
4. Magnesium alloy wheel: magnesium alloy wheel, can be understood as magnesium aluminum alloy wheel, is an upgrade version of aluminum alloy wheel. The physical properties of the aluminum alloy wheel ring are greatly enhanced by the addition of magnesium. The density of magnesium aluminum alloy wheel is also low, and the rigidity of all has been improved. Like aluminum alloy wheel, the defects of magnesium aluminum alloy wheel are still brittle and not impact resistant. Therefore, the above two kinds of car wheel rings have a great demand for production technology.
5. Carbon fiber wheel: carbon fiber wheel is the only non-metallic information wheel in this article today. Many people may wonder. Why can carbon fiber data be used to make wheel rings? That's based on the comprehensive properties of the carbon fiber composite. Carbon fiber composite materials are low density, high rigidity, strong impact resistance, corrosion resistance, acid alkali resistance, high temperature resistance to a certain extent, which is the very aspiring production data of car parts. The application of carbon fiber in car is not only wheel rim, but also frame, suspension member, cover plate, rear-view mirror, seat, etc.
The impact resistance of carbon fiber wheel is slightly better than that of aluminum alloy and magnesium aluminum alloy, but it is very similar to that of aluminum alloy. It is very brittle. Once the impact force exceeds the bearing range, the carbon fiber wheel will be completely damaged. Carbon fiber wheel production is more difficult, so the price is higher than the previous several, so only in the luxury car can we see it now.
6. Titanium alloy wheel: finally, a rare titanium alloy wheel. Titanium metal is usually used to make information of spacecraft. It is not necessary to say the physical properties of the rings. There are titanium alloy wheels on the space exploration vehicle, but there are no examples of civil car wheels. Titanium metal is very rigid, but it is not high in durability. Traditional production technology is difficult to reduce its production into car wheel rim, which is of high value.
The above is the introduction of 6 kinds of car wheel rings. Except titanium alloy wheel rings, five examples have been given in application. Metal wheel rings are easy to produce, so they are the main flow choice for cars.
