NNX-D139 Forged Car Wheels Best Quality Monoblock Concave Black 16 17 18 19 20 21 22 23 24 Inch PCD 5×112 5×120 wheels Rim

There are three ways to manufacture aluminum alloy wheels.

Gravity casting, forging, low -pressure precision casting.

1. The gravity casting method uses gravity to pour the aluminum alloy solution into the mold. After forming, it can be used to complete the production to complete the production. The manufacturing process is relatively simple. It does not require a precise casting process. The cost is low and the production efficiency is high, but it is easy to produce bubbles (sandy eyes). The density is uneven and the surface smoothness is insufficient. Geely has a considerable model that is used in the wheels produced by this method. It is mainly early -produced models. Most of the new models have been replaced with new wheels.

The forging method is directly squeezed on the mold by a thousand tons of the pressure machine. The advantage is that the density is uniform, the surface is smooth and delicate, the wheel wall is thin and the weight is light. The material strength is the highest. The better production equipment, and the finished product rate is only 50 % to 60 %, and the manufacturing cost is higher.

2. The low -voltage precision casting method is precisely cast under the low pressure of OIMPA. This casting method has good formability, clear outline, uniform density, and smooth surface, which can achieve high strength, lightweight, and control costs. More than. It is currently the mainstream manufacturing method of high -quality aluminum alloy wheels.

Experts teach you how to choose the excellent “inferior” of aluminum wheels and aluminum wheels
Outstanding: Aluminum wheels have gradually replaced the status of steel wheels because of light weight, good heat dissipation and good appearance. Light weight reduces the self -weight of the entire vehicle: good heat dissipation, you can timely distribute the heat of the brakes in time, so as not to cause braking heat recession and affect driving safety. When driving, the silver line passed the light footsteps.
Bad: The aluminum alloy is crispy, it is easy to cause small cracks, and it is not easy to be found. The strength is not as high as the steel material. It may occur during casting. There is no inner tire tire.
The basic principles of choosing a wheel or hub cover must be easy to clean.
Don’t blindly pursue beautiful, complicated structural wheels or hubs are very troublesome when washing cars. The best, simple and easy to clean.