How to distinguish the quality of automobile sheet metal accurately and quickly?

News 2018年11月26日 29

In order to distinguish the quality of sheet metal parts, we can start with packaging, weight, welding process, painting process and the degree of coincidence when loading. It is very difficult for ordinary car owners to distinguish whether the sheet metal parts are of high quality after handing in the car, so they can distinguish them from the packaging of the products in advance: the products produced by small factories will not print the contact method and factory address, while the regular manufacturers will have steel stamps, qualifications and inspection labels on the products in addition to the contact method and factory address, even if consumers will use them in the future. Now, there is also a way to safeguard rights.

Product weight is one of the inspection standards to measure the quality of automobile sheet metal parts. In order to ensure the safety of automobiles, the steel plates used in automobile sheet metal parts must reach a certain weight. The weight of the original sheet metal parts and the high quality by-products should be almost the same, and if the sheet metal parts you buy are one third lighter than the original sheet metal parts, then you will undoubtedly buy a small factory product.

As for welding technology, it is also a way to distinguish whether sheet metal parts come from large factories or not. Sheet metal parts manufactured by regular manufacturers will adopt mechanical cutting and welding operation mode. Their solder joints or trimming edges are smooth and smooth, and will not leave rough cutting edges.

Many car owners believe that the same color of car paint is needed after the sheet metal parts are sprayed, so the spraying process of sheet metal parts will be neglected in the selection of sheet metal parts, thinking that it is not important, but this idea is incorrect.

In order to prevent oxidation and rust, sheet metal parts need to be sprayed before they leave the factory. Indeed, the spraying links after replacing sheet metal parts can not only tone their colors, but also protect and prevent oxidation. However, if the spraying treatment of sheet metal parts in small factories is inhomogeneous in adsorption and foaming, it will affect the effect of post-spraying. It is easy to fall off, cause rust, and affect and destroy the quality of sheet metal parts.