As a common mechanical connector, screws are widely used in various industries. However, in some special cases, screws should also take into account the waterproof effect, such as automobiles, aircraft, underwater equipment and other fields. Therefore, screw waterproof technology has gradually become an independent field.Next waterproof screw manufacturers to tell you the principle of them:
1. Thread structure
The main waterproofing mechanism of screws is based on their threaded structure. Under normal circumstances, the longitudinal thread of the screw and the surface of the connection part constitute a microscopic maze structure, which can effectively prevent the penetration of water. In addition, there are some screw heads with O or U-shaped sealing rings, which can strengthen the waterproof performance of the screw.
2. Anti-rust treatment
Because the presence of moisture and oxygen will lead to rust on the surface of the screw, it is necessary to perform anti-rust treatment on the screw before use. Generally, hot-dip galvanizing, electrogalvanizing or spraying protective film are used to improve the corrosion resistance of screws.
Waterproof screws mainly rely on thread structure and rust prevention technology to achieve, while through sealant, die treatment and nut welding methods to improve its waterproof performance.
Anzhikou Hardware Technology Co., Ltd. is a screw manufacturer with 10 years of experience in waterproof screws production, which can be customized according to customer's needs to provide you with suitable fastener solutions.