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

2022-08-02 17:08:19

To distinguish the quality of sheet metal parts, generally speaking, we can start from the aspects of packaging, weight, welding process, painting process and the degree of coincidence during loading. It is very difficult for ordinary car owners to distinguish whether the sheet metal parts are of high quality after the delivery of the car. It might as well be distinguished from the product packaging in advance: generally, the products produced by small factories will not be printed with contact information and address, while the regular manufacturers will also have steel seals, qualifications and testing labels on the products in addition to the contact information and address. Even if consumers have problems in the use process in the future, they can also have a way to protect their rights.

Product weight is one of the inspection standards to measure the quality of automotive sheet metal parts. In order to ensure the safety of automobile, the steel plate used in automobile sheet metal parts must reach a certain weight. The weight of the original sheet metal parts should be the same as that of the high-quality sub factory sheet metal parts. If the sheet metal parts you buy are one third lighter than the original sheet metal parts, you will undoubtedly buy a small factory product.

As for the welding process, it is also a way to distinguish whether the sheet metal parts come from large manufacturers. The sheet metal parts produced by regular manufacturers will adopt the operation mode of mechanical cutting and welding, and their welding points or cutting edges are flat and smooth, leaving no rough edges of the cutting hands.

Many car owners believe 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 purchasing the body parts, thinking it is irrelevant, but this idea is incorrect.

In order to prevent oxidation and corrosion, the body parts need to be painted before leaving the factory. Indeed, the painting process after replacing the body parts can not only color them, but also protect them from oxidation. However, if the body parts from small factories have uneven adsorption and foaming during the production, the effect of post painting will be affected, resulting in their easy falling off during use Cause corrosion, affect and damage the quality of sheet metal parts.