The law of wear in mechanical seal applications-

The law of wear in mechanical seal applications

　2017-03-31　　

The law of wear in mechanical seal applications

According to the analysis of various factors, the wear law can be drawn as follows: 'The wear amount of the friction object is proportional to the friction sliding stroke; it is proportional to the size of the external load; it is proportional to the yield limit or hardness of the softer material in the friction pair. .'

The first point of these laws can be applied under various conditions; the second point is applicable within a certain load range. Practice has shown that after the average pressure between the surfaces increases to a certain critical value, the amount of wear will increase sharply. The relationship between stick wear coefficient and average pressure of different hardness steels. When the average pressure exceeds 1/3 of the hardness of the material, the amount of wear will increase sharply. This is because under a very distant load, the entire contact surface is plastic, so the actual contact area is no longer proportional to the load, and large areas of welding and seizure will occur. Therefore, the maximum allowable average pressure between the surfaces should not exceed 1/3/ to avoid severe adhesive wear.　　384.html,

Seizure in the application of mechanical seal 　　 Abrasive wear in the application of mechanical seal