A Brief Discussion on Some Detailed Knowledge about Gas Springs

Regarding gas springs, today we will address several issues, including:
Firstly, how to detect the quality of gas springs?
Secondly, how to test the lifting force of gas springs?
Thirdly, the pressure resistance test of gas springs
Fourthly, if the gas spring is damaged, can it still be repaired?
Let's solve these four problems separately below.
How to check the quality of gas springs?
Firstly, check its surface, mainly to see if the spray paint on the surface is uniform, and then check if there is any oil spill at the junction of the stroke and cylinder. If there is, it indicates poor quality and inadequate sealing. After a period of use, oil and gas leaks may occur because the gas spring cylinder is filled with a mixture of oil and gas.
How to test the lifting force of gas springs?
The two simplest methods are mainly introduced, which are:
Method 1: Place the gas spring perpendicular to the ground and place a heavy object on top until the piston rod of the gas spring moves towards the cylinder. At this point, the weight of the heavy object is approximately equal to the lifting force of the gas spring.
Method 2: Hold the cylinder of the gas spring with your hand and press the piston rod vertically towards the electronic scale. At this point, the reading on the electronic scale is approximately the lifting force of the gas spring.
3. Pressure resistance test of gas spring
It is to subject the cylinder to the required pressure and ensure that there is no oil or gas leakage for a certain period of time. This test is usually conducted before production and is typically three times the maximum compression force of the gas spring.
If the gas spring is broken, can it still be repaired?
The answer is negative, because once the gas spring leaks oil or gas, it means that the seal inside the gas spring has failed, and the reasons for this are:
(1) The quality of the gas spring itself is not up to standard, with rough piston rods and poor sealing quality;
(2) The piston rod has pits, grooves, or sharp spikes, which can scratch the seal;
(3) The piston rod has been painted and glued.
All of the above reasons can cause the failure of seals, resulting in the scrapping of gas springs.