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• Time of issue:2020-09-12 16:11
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(Summary description)The basic feature of the cylinder barrel of the main top cylinder is deep hole processing, which is processed by rolling. Because the surface layer retains surface residual compressive stress, it helps to close the surface of micro cracks and hinder the expansion of corrosion, thereby improving the surface corrosion resistance. , And can delay the generation or expansion of fatigue cracks, thereby improving the fatigue strength of the cylinder. Through roll forming, a cold work hardened layer is formed on the rolled surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the wear resistance of the inner wall of the cylinder and avoiding burns caused by grinding. After rolling, the surface roughness value is reduced, which can improve the mating properties. In order to prevent slender parts such as piston rods from bending or deforming, they should be balanced with skid supports when placing them. Before disassembling the hydraulic cylinder, the hydraulic circuit should be relieved of pressure, otherwise, when the oil pipe connected with the cylinder is loosened, the high-pressure oil in the circuit will be sprayed out quickly. Because the main jack cylinder is different from the ordinary hydraulic cylinder, there are some corresponding thinking elements for this specific type, and everyone must be familiar with this point. This is a good way to make product purchases. The main top cylinder manufacturer manages scientifically, so that the air in the system can be exhausted, and the systems can be preheated, which can effectively avoid the presence of air or water in the system, causing gas or scorch in the cylinder body, otherwise it will damage the seals , Causing failures such as leakage in the cylinder.