What are the quality inspection methods of mechanical seals

What are the quality inspection methods of mechanical seals

21/02/20 10:40:02

The inspection of the quality of the mechanical seal does not mean that a simple test is enough, it should be summarized from the production process, technology and use. First of all, we need to figure out what a mechanical seal is. It is originally an oil seal device for a rotating machine. It is a pair or more than one pair of mechanical seal ends perpendicular to the axis of rotation. With the cooperation, the stickers are kept and relatively slid to avoid fluid leakage. Therefore, the equipment quality requirements of mechanical seals are very high.

There are many testing methods for mechanical seals. Our general testing methods and steps are mainly determined according to the material itself. First of all, the radial runout of the rotating shaft of the equipment should be ≤0.04 mm, and the axial runout is not allowed to exceed 0.1 mm; during the equipment process, it is strictly forbidden to bump and hit, so as to avoid the mechanical seal being damaged due to friction and damage to the seal; The contact surface should be coated with a layer of cleaning mechanical oil for smooth installation; when installing the static ring gland, the tightening screws must be evenly stressed to ensure the straightness of the end face of the static ring and the axis line; after installation, turn it by hand The rotating shaft and the rotating shaft should have no light or heavy feeling; the equipment must be filled with medium before operation to avoid dry friction and seal failure.

The mechanical seal must not be affected by external changes in the environment in which it is used, and its own decomposition and softening requirements are relatively high, otherwise, it will easily cause quality problems in use. In order to ensure the safety and longevity of its use; the corrosion resistance and aging resistance requirements of mechanical seals are also very high, and the degree of wear resistance will directly affect its service life. When processing mechanical seals, many other factors also need to be considered.