What are the common problems in the use of powder metallurgy bearings?

What are the common problems in the use of powder metallurgy bearings?

Powder metallurgy is a new type of net near-molding technology, which uses melting, heating, injection and pressing of metal powder to carry out the required mold molding. For some special materials such as refractory metals, refractory metals, high alloy and so on.

So what are the common problems in the use of powder metallurgy bearings? Let's follow zhongwei's precision knitting to have a look.

1、 FAQ:

1. Bearing back fretting wear: spectrum analysis found that the iron concentration was abnormal, there were many iron sub-micron wear particles in the iron spectrum, and the lubricating oil moisture and acid value were abnormal.

2. Surface strain: cutting abrasive particles are found in the ferrography, and the abrasive particles are composed of nonferrous metals.

3. The surface of the bearing journal of iron-based powder metallurgy bearing is strained: there are iron-based cutting abrasive particles or black oxide particles in the ferrography, and there is tempering color on the metal surface.

4. Tile surface corrosion: abnormal concentration of nonferrous metal elements found by spectral analysis; There are many submicron wear particles with nonferrous metal composition in the ferrography; The water content and acid value of lubricating oil exceed the standard.

5. Surface corrosion of powder metallurgy bearing journal: spectrum analysis found that the concentration of iron element was abnormal, there were many submicron particles of iron composition in the iron spectrum, and the water content of lubricating oil exceeded the standard or the acid value exceeded the standard.

To sum up, this is the problem that often occurs in the use of powder metallurgy bearings, which is shared by Zhongwei Precision Editor. I hope this article can help you. If you want to learn more about powder metallurgy, please pay attention to the official website of zhongwei Precision.