Material And Device Request Of Hydraulic Seals
Sep 01, 2021
Under normal circumstances, the sealing performance of the sealing device determines the degree of leakage of hydraulic cylinders and other types of hydraulic seals. Therefore, when inspecting the hydraulic system and hydraulic seals, special attention should be paid to the small parts of the seal. In order for the hydraulic system to work normally, the following requirements must be made for the material and sealing device of the hydraulic seal:
(1) The material and sealing device of the hydraulic seal have good sealing performance. Within the specified working pressure and working temperature range, it has good sealing performance. When conditions permit, the sealing device is required to automatically improve its sealing performance with the increase of working pressure, so that the leakage will not occur due to the increase in pressure. Excessive growth.
(2) The material and sealing device of the hydraulic seal have good wear resistance. Hydraulic seals must have low production and use wear, good wear resistance, long life, and to a certain extent can automatically compensate for the performance of the worn gap.
(3) The material and sealing device of hydraulic seals have good oil resistance and corrosion resistance, and are not easy to age.
(4) The material of the hydraulic seal and the friction coefficient of the sealing device are small, and the friction force is uniform. The piston rod will not "crawl" or jam due to excessive friction.
(5) The material and sealing device of the hydraulic seal have good temperature resistance. It can adapt to the temperature requirements of different conditions in the hydraulic system.
(6) The material and sealing device of hydraulic seals are easy to manufacture, low cost, easy to use, and simple to maintain.
(7) The material and sealing device of the hydraulic seal adopt standardized structure and size, and the pre-compression amount and the installation groove size and processing accuracy of the seal are reasonably selected.
