How to deal with the exterior layer of automobile sheet metal correctly?

2020-05-26 17:02:21

Many car owners think that the body parts still need to be painted with the same color as the original car, so they will ignore the painting process of the body parts when choosing the body parts, which is irrelevant, but this idea is not correct. In order to prevent oxidation and corrosion, the body parts need to be painted before leaving the factory. Indeed, the painting link after replacing the body parts can not only color them, but also protect and prevent oxidation. However, if it is a small factory body parts, the painting treatment during production has uneven adsorption and foaming, which will affect the effect of post painting In the process of using, it is easy to fall off, lead to corrosion, affect and damage the quality of sheet metal parts.

The so-called sheet metal parts refer to the products processed by sheet metal technology. Sheet metal parts have been widely used in our daily life. Sheet metal parts have the characteristics of light weight, high strength, conductivity (can be used for electromagnetic shielding), low cost, large-scale mass production performance, etc. the common problem in the use process is the corrosion of the surface layer, When encountering such similar problems, automobile stamping parts manufacturers remind us what methods to take to deal with them.

There are two main ways to deal with the surface problems of sheet metal parts:

1. Clear processing

The corrosion, dirt and oxide skin on the outer surface of steel plate and copper plate will affect the plate, and there may be cracks, air holes and so on. So we need to clean before connecting. Generally speaking, we can use acid washing and mechanical method to deal with it.

2. Softening treatment

In fact, it is to eliminate the residual stress during work hardening and production, so that it can return to the original plasticity, so we need to conduct softening treatment. Generally speaking, according to the requirements of softening, we can divide it into isothermal annealing, complete annealing, stress annealing and recrystallization annealing, etc.