?Improper operation can cause O-ring seal hydraulic performance degradation

??With the rapid development of industry, accounting for more and more important sealing equipment, which relates to the normal functioning of the device, and hydraulic O-ring seal is the most widely used. Hydraulic O-rings can work under high temperature, high-pressure operating conditions. Presenting distorted picture of the main elements of the hydraulic O-ring failure is lasting deformation, and squeeze into the sealing gap movement.

??Piston and piston rod in the course of the campaign, the working environment of dust and impurities will be attached to the outside of the piston and are transported to the hydraulic cylinder, the accumulation of O-rings on both sides of the composition particles accelerate seal wear, resulting in seal decline. Therefore, equipment protection process, we should always view and timely replacement of the dust ring. II. Lasting deformation

??Because the O-ring rubber composition using information attributed to elastic materials, the amount of the initial planning compression and rebound can be blocked by long-term use, decreased flexibility, lasting deformation occurs, resulting in seal decline, after the onset of the leak.

??High temperatures can accelerate the aging of rubber. Operating temperature, the greater the O-ring compression variables. When persistent deformation greater than 40%, O-ring seal on lost and can attack the leak.

??Low temperature elastic rubber materials will decrease, even disappear. O-ring temperature is minus a job, in the case of -50 ? ~ -60 ?, the low-temperature resistance rubber elastic material will be a sharp decline, set to lose elasticity.

??Pressure of the hydraulic system is an important element of the O-ring causing lasting deformation. Construction machinery hydraulic system operating pressure has gradually improved, long equipment duty cycle. Long-term effects of high pressure will deform the O-ring durable.

??Sealing apparatus in motion, the conflict with the O-ring wear hydraulic damage important influencing factors. Adding conflict forces, the O-rings between the hydraulic piston rod occurred heat, resulting in rubber aging, resulting in the O-ring failure, damage to the sealing function. Heat also causes conflicts rubber adhesion, further increases the power of the conflict, constitutes a vicious circle.

??Distort refers to incorrect operation will cause the hydraulic O-ring seal performance degradation

??With the rapid development of industry, accounting for more and more important sealing equipment, which relates to the normal functioning of the device, and hydraulic O-ring seal is the most widely used. Hydraulic O-rings can work under high temperature, high-pressure operating conditions. Presenting distorted picture of the main elements of the hydraulic O-ring failure is lasting deformation, and squeeze into the sealing gap movement.

??Piston and piston rod in the course of the campaign, the working environment of dust and impurities will be attached to the outside of the piston and are transported to the hydraulic cylinder, the accumulation of O-rings on both sides of the composition particles accelerate seal wear, resulting in seal decline. Therefore, equipment protection process, we should always view and timely replacement of the dust ring.