How to detect automobile special screws

A normal part-time job for a car is inseparable from many small parts. Although they are not high in price, they can be said to be negligible compared to the price of a car, but they are indispensable. Separate them, the sports function of the car will not be developed.

    Above, I will introduce one of the auto parts, that is, special screws for automobiles. Screws are not only widely used in the industrial field, but also very common in our daily lives. The screw is mainly used to connect the parts, so that an object becomes a whole. Therefore, the screw must stop testing before it can be sold.

     First: Appearance inspection. The appearance of special screws for automobiles gives people the first impression. The quality of the impression is the first step in whether the transaction can be achieved. The function aspect is put aside. The appearance of the screw should be relatively clean when it is taken out, and the oil and dust underneath should be cleaned and clean, and it should not give people a feeling that it seems to be backlogged for a long time. That way, the product level of the screw will not be improved, but it will have a great impact on its purchase price. At the same time, the appearance of the screw, including the burrs on the thread, should be removed and clean, and some screws must be polished before leaving the factory. These are to improve the appearance of screws.

    Second: The processing of functional detection threads must be in accordance with the corresponding thread specifications, and the pitch is strictly regulated. If the surface of the screw has been electroplated, the thickness of the coating should also be stopped. The inside of the coating should be very lubricated, and there should be no bumps.

    Third: Material testing The materials used to process automotive screws can be divided into many types, which is also an important element of thread price thinking. Under normal circumstances, customers have to stop the material inspection of the purchased car-specific screws before they are disassembled into the car or other equipment. There are many ways to detect data. The fastest and most accurate method is the spectral detection method, which can accurately read out the content of various elements in the screw data and stop classifying the types of materials. Although other methods can also distinguish the material of the screw, the method is more general.