Bearing area curve of mechanical seal application-

Bearing area curve for mechanical seal application

　2017-03-09　　

Bearing area curve for mechanical seal application

In the application of mechanical seals, this curve is used to express the height distribution of the rough surface asperities. It is mainly used to calculate the actual contact area of u200bu200bthe friction pair, which is of great significance to the study of wear.

Suppose an ideal smooth surface is in contact with a rough surface. The micro-protrusions on the surface of the rough hammer are worn during the friction process, starting from the peak of the maximum unevenness, when the depth of the top wear (that is, the distance between the top line and the profile section) is the sum of the lengths in the wheel hemp; The sum of degrees in Kalachama is, and so on. In this way, a series of points can be connected to form a curve, which is the supporting curve. As the value increases (that is, the wear depth increases), the bearing area becomes larger and larger. The tangent of the angle at the intersection of this curve and the ordinate is a measurement of surface roughness. The larger the tangent value, the smoother the surface. This tangent value is called the surface roughness tangent.

When the friction surfaces of the two sealing rings are embedded in each other and are in concentric grooves, the calculated gap height is much smaller than the value calculated according to the formula. Approximately, the gap height can be determined as follows.　　340.html,

The full ordinate distribution curve of mechanical seal application 　　 The contact of friction surface in mechanical seal application