O-ring joints are widely used in hydraulic, pneumatic and sealed containers. The reasonable choice and use of the joint treatment method is directly related to the sealing effect and service life of the O-ring.
A, insert connector
The insert joint is a common O-ring joint treatment method, and its structure is characterized by a groove in one end of a shaft or rod that is matched with the O-ring, and a convex head that needs to be inserted at the other end. In connection, the O-seal is placed on the groove, and then the convex head is inserted into the groove, and the seal is achieved by axial compression of the O-seal ring.
The correct use of plug-in joints to connect O-ring joints requires attention to the following:
1. Ensure that the O-ring size matches the groove to avoid being too large or too small to be installed correctly;
2. When installing the convex head, gently tap to avoid damage to the O-ring and groove;
3. During the installation process, ensure that the convex head is fully inserted into the groove to avoid tilt or loosening.
Two, compression joint
Compression joint is also a common O-ring joint treatment method, its structure is characterized by a shaft or rod at one end with a groove matching the O-ring, the other end is a nut with a compression ring. During the connection, the O-seal is placed on the groove, and then the compression ring is placed on the O-seal, and the O-seal is compressed by rotating the nut to achieve the seal.
The correct use of compression joints to connect O-ring joints requires attention to the following points:
1. Ensure that the O-ring size matches the groove to avoid being too large or too small to be installed correctly;
2. When installing the compression ring, gently tap to avoid damage to the O-ring and groove;
3. When rotating the nut, gradually increase the force to avoid excessive compression of the O-ring at the beginning.
Third, other joint treatment methods
In addition to insert joints and compression joints, there are other commonly used O-ring joint treatment methods, such as push-in joints, rotary joints, etc.
The push-in joint is suitable for flat sealing, and its structure is characterized by a groove at one end of a shaft or rod that is matched with an O-ring seal, and a convex head that needs to be pushed into the other end. During the connection, the O-seal is placed on the groove, and then the convex head is pushed into the groove to achieve the seal by compressing the O-seal ring. The rotary joint connects the O-ring joint through the combination of the rotary shaft and the spring, and is also suitable for flat sealing.
The above is the common treatment method of O-ring. Proper use of these joint treatments is essential to improve the sealing effect and service life of the O-ring. In actual applications, selecting the appropriate connector treatment method according to the specific application scenario and requirements can improve the performance and security of the device.