Mechanical seal manufacturer End face wear measurement

1. Weighing method

The weighing method is to measure the mass change before and after the friction pair ring test (operation) to determine the wear amount. It is generally carried out on the balance, which is a simple and easy common method.

2. Length measurement

This method is based on measuring}.: F The normal dimension change before and after the end face test of the friction pair is used to determine the wear amount. Generally, there should be a reference position for measurement. Commonly used measuring instruments include length measuring instrument, universal tool microscope, reading microscope, etc

3. Surface profile method or surface roughness method

This method is to determine the wear amount by measuring the profile or roughness change of the friction surface before and after wear with a profiler or a roughness meter. This is because the bearing product ratio of sealing changes with the change of surface roughness

4. Metallographic analysis

This method is used to determine the wear amount by observing the changes in the metallographic structure before and after wear at the friction end, especially for the study of corrosive wear and fatigue wear. Metallographic analysis can also be observed by electron microscope and electron probe.

5. Chemical analysis method

This method uses chemical qualitative and quantitative methods to analyze the composition and total amount of wear particles, and can also be carried out by means of spectral and chromatographic analysis methods.

In addition to the above methods, radioisotope method and radioactive indicator can also be used to measure the end face wear