Surface treatment has a crucial impact on the performance and corrosion resistance of shoulder screws. Shoulder screw is an important component used to connect mechanical parts and is widely used in various industrial fields. However, depending on the working environment and the conditions to which the bolts themselves are exposed, bolts can suffer corrosion, wear, or other forms of damage. Therefore, in order to improve the durability and stability of bolts, surface treatment becomes crucial.
One of the purposes of surface treatment is to enhance the corrosion resistance of the shoulder screw. By forming a protective coating or covering layer on the surface of the bolt, the corrosion of the bolt by corrosive substances can be effectively prevented. This coating or covering prevents damage to the surface of the bolt from moisture, chemicals or other corrosive substances, extending the life of the bolt.
Another important goal is to increase the surface hardness and wear resistance of the bolt. Some surface treatment methods, such as heat treatment or nitriding, can increase the hardness of the bolt surface, making it more wear-resistant and durable. This is especially important for shoulder screws used in high-intensity working environments, which can effectively reduce damage caused by friction and wear.
Surface treatment can also improve the surface finish and roughness of the shoulder screw. By removing rough or uneven portions of the surface, you improve the fit between the bolt and the fitting, reducing friction and wear. Some surface treatment methods can also form microscopic concave-convex structures on the surface of the bolt to increase its surface roughness, which is beneficial to improving the friction and anti-slip ability between the bolt and accessories.