Influence factors of damper faults and failure inspection methods
Influence factors of damper fault
There is an inevitable failure of shock absorber in the process of application, and its influencing factors are various:
The quality of the shock absorber;
Road conditions and road environment; (pavement conditions, sand, dust, gravel and other influencing factors).
Driving mileage; (With the increase of driving mileage, it causes the wear of shock absorber moving parts, sealing parts, valves and valve plates, and the weakening of the function of the working fluid, etc.) Load conditions; Climatic conditions for expanding sleeve of rodless cylinder hinge igbt module;
Driving skills and habits;
Installation condition of shock absorber on the vehicle; (For example, the device condition of the shock absorber, the tightness level of the thread connection, and whether the buffer block/auxiliary spring is damaged or missing) Abnormal collision.

2. In general, the harder the material is, the stronger the corrosion resistance is. But so far, there is no material that can resist serious cavitation for a long time without being damaged. Therefore, in the case of cavitation, it should be considered that the valve core and valve seat are easy to replace. At present, from the perspective of cavitation resistance, zui is widely used at home and abroad for making valve core and valve seat materials, such as stellite alloy, hardened tool steel and cobalt tungsten alloy steel. Special surfaces need to be hardened. When Stellite alloy is used, surfacing and spray welding can be carried out on these stainless steel substrates to form hardened surfaces. According to different service conditions, the hardened surface can be limited to the sealing line of the valve seat, valve core and valve seat, or it can be located on the whole surface or at the valve core guide.