Automobile valve oil seal aging reasons

The car engine is composed of many small parts of the car. Each small part plays a very important role. When a small part has a problem, it will affect the whole operation of the car engine. Therefore, we need to maintain the engine of the locomotive frequently. The following are some of the reasons why Xiaobian has compiled some aging for auto valve oil seals.



The first is the valve oil seal installation problem: for example, mixing during installation, or foreign matter in the pipeline, dust, leaking into the seal; leakage caused by poor sealing; leakage caused by incorrect sealing direction or uneven coating processing The coating enters the sealing layer.

Secondly, the selection of the seal: the bite is caused by the high pressure, and then the air is mixed, the adiabatic compression causes the seal to burn; the high frequency reciprocating motion causes the heat, dry grinding; the environmental dust causes the seal ring to wear abnormally; Rust causes problems such as leaks.

Again, it is the design problem of the sealing equipment. This includes

1. improper selection of guiding support materials, damage cylinder, piston rod

2, the friction gap is not suitable, resulting in gap extrusion bite

3. Improper thread lead angle at the end of the cylinder, damage seal

4, sealed installation lead angle improper damage seal

5, the sliding surface roughness is not suitable, wear seal

6, uneven plating, open holes on the surface of the seal, scratched wear seal

7, the sealing groove, especially the shaft sealing groove roughness is not enough, wear damage seal

In the end, it may be a problem of the product itself, or a problem of sealed storage, which is subjected to high temperature during transportation, causing the sealing material to deteriorate and deteriorate.

The above is some of the reasons why Xiaobian has sorted out the aging of automobile valve seals for the riders. I hope that the riders can learn more about this issue.