When the temperature decreases, the pressure in the cylinder decreases, the force value of the self-locking gas spring gradually decreases, and the point at which the gas spring and the trunk door reach a torque balance gradually increases until it can automatically bounce up until -30-40 degrees below zero. The process is all manual, which is normal. At high temperature, the pressure inside the gas spring increases due to thermal expansion. At this time, the gas spring can lift the rear door without lifting it to a normal temperature angle. Therefore, it is normal for the door to open automatically when you lift it lightly in summer. In winter, it is not because of the leakage of internal pressure, but the expansion and contraction of the gas in the spring. In addition, during use, there will be grease on the gas spring. Is this an oil leak? In fact, in order to prevent dust and impurities from entering the cylinder of the gas spring, the dust cover and the piston rod are interference fit. When the piston rod is stretched, the lubricating oil at the guide block is taken out, and when the piston rod is compressed, the oil film on its surface is blocked by the dust cover and cannot flow back. After several stretches and compressions, more oil builds up on the outer surface of the dust cover, resulting in an oil film phenomenon on the surface of the dust cover, so you can see that there is grease on the gas spring instead of oil leaking!
The gas seal of the self-locking gas spring, as the core component, is the component that seals the gas and oil, and plays a sealing role through the interference fit with the piston rod. When the paint foreign matter remains and is adsorbed on the inner lip surface of the piston rod (that is, the contact surface between the air seal and the piston rod), the air seal is squeezed to form an air leakage channel, which will cause chronic air leakage. Therefore, when using and maintaining the car, Try to avoid any tape, cloth wrapping and collision damage to the piston rod, so as to avoid the failure of the gas spring function.
The self-locking gas spring has four types of joints: single piece, single ear, double ear and universal ball joint, which are single piece, single ear, double ear and universal ball joint. The design should be based on the specific conditions of the installation site. Select the fitting type that matches the size of the gas spring. It is recommended to use the universal ball head type, which can automatically adjust the connection angle during the working process, thereby eliminating the lateral force during the working process of the gas spring, especially suitable for occasions requiring high installation accuracy. In short, no matter what type of connector is selected, it is necessary to ensure that the rear door (cover) after the gas spring is installed can be opened and closed smoothly without interference and jamming.
