How to distinguish the authenticity of auto parts and accessories?

2020-02-26 15:17:40

The processing technology of automobile stamping parts is more and more widely used. Many accessories, including tools, are made by machine stamping. For example, the lampshade of automobile, we all know that the shape of lampshade is elliptical, which is not easy to produce. With stamping technology, it can be well realized.

So how to do stamping processing? First, get the stamping part, observe its edge line, and use the machine to separate the stamping part and the blank along the edge wire. After the separation is successful, the stamping blank can be stretched or bent according to the needs of customers, and then be made into a fixed shape, and then be formed.

How to distinguish the authenticity of auto parts and accessories?

1. Check whether there is any missing part in the assembly. Normal assembly parts must be complete and intact to ensure smooth assembly and normal operation.

2. Check the geometric dimension for deformation. Some parts are prone to deformation due to improper manufacturing, transportation and storage.

3. Check whether the joint is flat. In the process of handling and storage of spare parts, due to vibration and collision, burr, indentation, damage or crack often occur at the joint part, which affects the use of parts. Pay attention to inspection when purchasing.

4. Check whether the surface of parts is rusted. The surface of qualified spare parts has both a certain precision and a bright finish. The more important the spare parts are, the higher the precision, the more strict the anti rust and anti-corrosion of the packaging.

5. Check whether the protective surface is intact. Most parts are factory coated with a protective coating.

6. Check whether the glued parts are loose. The parts are composed of two or more parts, which are pressed, glued or welded. There is no looseness between them. For example, the plunger of the oil pump and the adjusting arm are pressed; the driven wheel of the clutch is riveted with the steel plate, and the friction plate is riveted or glued with the steel plate; the filter element frame of the paper filter is glued with the filter paper; the electrical appliance The thread end of the equipment is welded. If any looseness is found during purchase, it shall be replaced.

7. Check whether the rotating parts are flexible. When purchasing the rotating parts assembly such as oil pump, rotate the pump shaft by hand, which should be flexible and free of jamming; when purchasing rolling bearing, support the inner ring of bearing by one hand, and rotate the outer ring by the other hand, which should be able to rotate freely and quickly, and then stop gradually. If the rotating parts do not rotate properly, it means that the interior is rusted or deformed. Do not purchase.

8. Check whether the trademark identification is complete. The quality of the original product's outer packing is good, the writing on the packing box is clear, and the overprint color is bright.