CBIES AUTOMOTIVE|Will A Leaky Shock Absorber Affect The Use Of The Car?
The role of shock absorbers
Shock absorbers are mainly used to suppress the shock and impact from the road when the springs rebound after absorbing the shock. The existence of shock absorbers is mainly to cushion the vibration from the ground and improve comfort.
When passing over uneven roads, although the shock-absorbing springs can filter the road vibration, the springs themselves will also have reciprocating motion, and the shock absorber is used to suppress this spring jump.
What is the function of shock absorber oil in the working principle of a shock absorber?
Nowadays, hydraulic shock absorbers are generally used. The vibration is generated by the impact of the elastic element in the suspension system, and in order to improve the smoothness of the car driving, the shock absorber is installed in parallel with the elastic element in the suspension, and in order to attenuate the vibration, the shock absorber is mostly used in the automobile suspension system as the hydraulic shock absorber. the working and reservoir cylinder of CBIES AUTO PARTS double-cylinder hydraulic shock absorber is made of precision steel tube, and the mounting ring is made of the seamless fine-rolled tube. It is one of the important parts of the shock absorber and is the first choice to realize the light weight of the shock absorber.
The working principle is that when there is relative movement between the frame (or body) and the axle, the piston in the shock absorber moves up and down, and the oil in the shock absorber cavity flows into another cavity repeatedly from one cavity through different orifices. At this time, the friction between the pore wall and the oil and the internal friction between the oil molecules form a damping force on the vibration, so that the energy of the vibration of the car is converted into the heat energy of the oil, and then absorbed by the shock absorber and distributed to the atmosphere. In the oil channel cross-section and other factors remain unchanged, the damping force increases or decreases with the relative movement speed between the frame and the axle (or wheel), and is related to the viscosity of the oil.
Will the shock absorber oil leakage affect the use?
The oil leakage of the shock absorber does not mean that there is no cushioning effect immediately, only that there is still some oil inside that has not finished leaking, if the inspection finds that the shock absorber has been leaking oil then it must be replaced.
Some cars with serious oil leaks will have a strange sound as long as the bumpy road, this situation is already very serious, long-term will have a bad impact on the whole suspension of the car
In general, the shock absorber will become more and more serious as long as it leaks oil, so we still recommend replacing it.
Shock absorber leaking oil in two cases.
a、Slight oil seepage.
Slight oil seepage is manifested as a small number of oil stains on the upper side of the shock absorber but does not affect the comfort of the vehicle, no difference from the normal shock absorber, such oil seepage can first be ignored, but we must often pay attention to the leakage of oil
b、Serious oil leakage.
More serious oil leakage refers to a large amount of sludge on the shock absorber, shock oil leakage will make the vehicle shock effect worse, seriously affect the driving comfort, sometimes accompanied by a "squeaking" sound on bumpy roads, and if the oil leakage is particularly serious, shock failure will also lead to vehicle runaway.
In this case, it is necessary to replace the entire shock absorber. There is no good way to avoid shock absorber leakage, but usually pay more attention to the process of using the car: over speed bumps, over the larger obstacles must slow down, try to take the better road conditions, do not let the car often in the overload state.
Shock absorber oil leakage must be changed?
Shock absorber oil leakage needs to test the performance of the shock absorber to know, the following is the shock absorber performance test detection method
Shock absorber performance test method
a, so that the car in poor road conditions on the road after 10km parking, touch the shock absorber shell with your hands, if not hot enough, indicating that there is no resistance inside the shock absorber, the shock absorber does not work. At this time, you can add the appropriate lubricant, and then test, if the shell is hot, the shock absorber internal oil shortage should be added to the full oil; otherwise, the shock absorber fails.
b, press the bumper hard, then release, if the car has 2~3 jumps, it means the shock absorber works well.
c, when the car is driving slowly and emergency braking, if the car vibration is more violent, it means the shock absorber has problems.
d, remove the shock absorber will be upright, and the lower end of the connecting ring clamped in a vise, the force pulls pressure damping rod several times, at this time there should be stable resistance, pull up (recovery) resistance should be greater than the resistance to the downward pressure, such as unstable resistance or no resistance, maybe a lack of oil inside the shock absorber or valve parts damage, should be repaired or replacement parts.
CBIES AUTO PARTS is committed to producing high-quality ERW steel tubes and cold-drawn precision tubes for a wide range of automotive components (China shock absorber tubes, welded steel tubes for EN10305-2 shock absorbers, crash bars, Other steel tubes for automobiles, etc.)
