Pay attention to the operation of the whole aluminum body maintenance process

With the continuous improvement of the rapid development technology of cars, the application of aluminum materials on the car is becoming more and more extensive. The proportion of aluminumization is getting higher and higher. Most of the sheet metals of most high -end cars are changed from the original high -strength steel to aluminum body sheet metal. The advantages of aluminum body sheet metal have far exceeded the original steel sheet metal in terms of rust and mute. However, it has increased more difficulty during the entire body maintenance process.

When repairing aluminum body metal metals, you should first pay attention to the elasticity of the aluminum material is very small. Simple and uneven deformation. First of all, you should judge how many pull points should be welded to just pull out the depression, and then use aluminum aluminum to use aluminum aluminum. The plastic hammer dedicated to the body is slightly flattened. When the welded joints, let all the solder joints be pulled up slowly at the same time. The open part of the deformation is welded with a special welding machine of the aluminum body. In addition, the aluminum body will not heat up and contraction. The shrinking fire will only cause greater damage to the aluminum body.

                                                          
The welding method of the aluminum body must first confirm whether the welding wire is the same as the body's material, and then remove all the dust, paint, aluminum body welding hardware demand for welding the hardware demand for the hardware demand for hardware on the body of the body.

1. Special gas protection welding machine and appearance repair machine for aluminum body

Due to the low melting point of aluminum and easy deformation, the welding requires low current, the special aluminum body gas protection welding machine must be used. The shape repair machine cannot be stretched like an ordinary shape repair machine. It can only be welded with a dedicated aluminum body shape repair machine to stretch with a meson nail stretcher.

2. Special aluminum body repair tool, powerful rivet gun

Unlike traditional accident vehicles, most of the aluminum body uses riveting maintenance methods, which must have a powerful rivet gun. And the tool for repairing the aluminum body must be dedicated, and it cannot be mixed with the tools for repairing the steel body. Because the steel body is maintained, the tool will be left with iron chips. If it is then used to repair the aluminum body, the iron dumb will be embedded in the aluminum surface, causing corrosion to aluminum.

3. Explosion -proof dust collecting vacuum vacuum system

In the process of polishing the aluminum body, a lot of aluminum powder will be produced. Aluminum powder is not only harmful to the human body, but also flammable and explosive. Therefore, there must be an explosive dust collecting system to absorb aluminum powder in time.

4. Independent maintenance space

Due to the strict requirements of the aluminum body repair process, the quality of automobile maintenance and maintenance operation is safe, and avoid the pollution and explosion of aluminum powder on the workshop. In addition, the maintenance personnel of the aluminum body should be trained to master the maintenance process of repairing the aluminum body.

Precautions in maintenance operations

1. The local stretch of aluminum alloy plates is not good, and it is easy to cause cracks. If the inner plate of the engine cover is complicated, in order to improve its stretching and deformation performance during the body manufacturing, the extension rate has exceeded 30%. crack.

2. The size and precision are not easy to master, and the rebound is difficult to control. During maintenance, it is necessary to use the method of low temperature heating to release stress, so that it will not produce secondary deformation such as rebounding.

3. Because aluminum is soft than steel, collision in maintenance and various dust attachments will cause defects such as bumps and scratches on the surface of the parts. Pollution takes corresponding measures to ensure the integrity of the parts.