What is the reason for the oil leakage of small single-column automatic hydraulic press machine

(1) Before dismantling the hydraulic cylinder, the hydraulic circuit should be depressurized. Otherwise, when the oil pipe joints connected with the cylinder is loosened, the high pressure oil in the circuit will be agile spray. Hydraulic press hydraulic circuit should first loosen the handwheel or pressure regulating screw at the relief valve, so that the pressure oil unloading, and then block the power supply or block the power source, so that the hydraulic equipment to suspend operations. (2) should prevent damage to the top of the piston rod threads, oil port threads and piston rod appearance, cylinder liner wall, etc. when disassembled. In order to prevent the piston rod and other long pieces of bending or deformation, placed using cushion wood support equalization. (3) Disassembly should be carried out in order. Because the layout and size of various hydraulic cylinders of hydraulic presses are not the same, the order of disassembly is slightly different. Usually should be put off the cylinder oil in both chambers, and then dismantle the cylinder head, and finally dismantle the piston and piston rod. When disassembling the cylinder head of the hydraulic cylinder, on the internal card key type connection of the card key or card ring to use special tools to stop the use of flat shovels; on the flange type end cover it is necessary to use the top of the screws, do not allow hammering or prying. In the piston and piston rod is difficult to extract, can not be forced to play, should first identify the cause and then dismantle. (4) before and after unloading should try to create conditions to prevent the hydraulic cylinder parts by the surrounding dust and impurities contamination. For example, dismantling should try to carry out in a clean environment; after dismantling all the parts to be covered with plastic, do not use cotton or other operating cloth cover. (5) Hydraulic press cylinders should be carefully viewed after disassembly to determine which parts can continue to use, which parts can be repaired and then used, which parts are necessary to replace. (6) It is necessary to carefully clean the parts before equipment. (7)To correctly equip the sealing equipment all over the place.

①Equipment O-ring, do not pull it to the degree of permanent deformation, and do not roll while the set, otherwise it can constitute a crooked shape and oil leakage.

② equipment Y-shaped and V-shaped sealing ring, pay attention to the direction of its equipment, to prevent oil leakage due to installation instead. Y-shaped seal ring, its lip should be with the pressure of the oil cavity; in addition, Yx-shaped seal ring should also pay attention to the distinction is the shaft or hole, do not install the wrong. V-shaped seal ring by the shape of the different support ring, seal ring and pressure ring, when the hydraulic press pressure ring press seal ring, support ring can make the seal ring for the shape of the sealing effect, the equipment should be sealing the ring of the openings facing the pressure of the oil cavity; adjusting the ring, should be limited to no leakage of oil. When adjusting the sealing ring, the sealing ring should be adjusted so that there is no oil leakage, and the sealing ring should not be pressed too tightly to prevent excessive sealing resistance.

3 sealing equipment, such as cooperation with the sliding appearance, equipment should be coated with appropriate hydraulic oil.

④ after disassembling the O-ring seal and dust ring should be all new. (8)Threaded couplings should be tightened using a special wrench, torque should be in line with the specification requirements. (9) piston and piston rod equipment, must try to measure its coaxiality and straightness in the full length of whether or not the difference. (10) equipment after the end of the piston assembly movement should be no sense of stagnation and uneven resistance and other phenomena. (11) Hydraulic press hydraulic cylinder to the host equipment, in and out of the oil port between the joints it is necessary to add seals and fastened to prevent oil leakage. (12) according to the requirements of good equipment, should be in the low pressure situation for a few reciprocating movement, in order to sweep the cylinder gas Tengzhou hydraulic press, Hairun hydraulic press, hydraulic press, press, single-column hydraulic press, four-column hydraulic press, gantry hydraulic press, four-column three-beam hydraulic press, powder molding hydraulic press, small hydraulic press, 5-4000 tons of various types of hydraulic press products. Welcome friends from all walks of life to come to our factory for guidance.