Now, although the service life of Metal Stamping parts is carried out according to industry standards, most parts can reach more than 15,000 times, and the salt spray test is checked within 96 hours, which should theoretically have a lifespan of more than ten years. The use of metal stamping parts is exposed to air, which causes corrosion, shortens its lifespan, and causes unnecessary losses. Therefore, it is very necessary to improve its corrosion resistance. So how to improve the corrosion resistance of metal stamping parts is a problem worthy of our attention. Let‘s find out.

How to improve the corrosion resistance of metal stamping parts:

First, improve the corrosion resistance of ferrous metals; at present, a large number of materials used in Anhui hardware stamping parts are carbon steel, such as transmission lockers, lining steel, etc. For carbon steel, how to improve the corrosion resistance is the key to affecting its service life. Due to frequent exposure to rain and sunlight, the surface that has been in contact with the profile for less than three years in Shanghai has been seriously corroded. Refer to relevant materials to see: the reason is that the surface of PVC profiles may be free of HCL under the action of light and heat during the aging process, which has a strong corrosive effect on the galvanized layer, which can explain why corrosion occurs on the surface in contact with PVC profiles;

Second, it is because the coating is too thin. According to the relevant British standards, in addition to the neutral salt spray test to reach 96 hours under harsh conditions, the thickness of the galvanized layer is not less than 40 μm. The current domestic standards often only consider the salt spray test time, not the coating thickness. If the passivation film is intact, about 10 μm of the coating can pass the neutral salt spray test for 96 hours. If the passivation film is damaged, it is easy to rust. The domestic electroplating industry generally believes that the 96-hour salt spray test is only a test of the protective performance of the galvanized passivation film, and the thickness of the galvanized layer is divided into three categories according to the use environment: excellent environment, general environment, and harsh environment. The thickness of the galvanized layer is 61 μm, 121 μm, and 24 μm, respectively.

The above is the problem of how to improve the anti-corrosion performance of metal stamping parts analyzed by our company for you, and how to improve the corrosion of stainless steel stamping parts, prolong their life and improve work efficiency. If you need to know other little knowledge, please continue to follow us, we will explain to you from time to time.