Development of Honing Cylinder Tube

The development of honing cylinder tubes should start from the early days of the founding of the People's Republic of China. Our country cannot produce seamless steel tubes, let alone honed seamless steel tubes - cylinder tubes!At that time, there was a lack of machinery and technology, and it was impossible to produce seamless steel pipes from round steel.Mainly rely on imported capillary.Although before the founding of New China, the Japanese invaders built a hot-rolled seamless steel pipe factory in Anshan, Northeast China in 1935. After Japan surrendered in 1945, all its equipment was dismantled by the Soviet Union and transported to Ural No. 1 Steel Pipe Factory in Ukraine.Therefore, when the People's Republic of China was founded, China could not produce seamless steel pipes.

In order to change the current situation of relying on imports, in August 1952, the first key industrial construction project of New China, Anshan Iron and Steel 'Three Major Projects' seamless steel pipe project was launched.

In recent years, after reform and development, my country's hydraulic industry enterprises have provided a large number of hydraulic systems for national key projects and major technical equipment. Most of the hydraulic systems use honed seamless steel tube cylinders, which are one of the key pressure-bearing components of important hydraulic props.Widely used in general industrial plastic processing machinery, pressure machinery, machine tools, etc.; construction machinery, construction machinery, agricultural machinery, automobiles, etc.; metallurgical machinery, lifting devices and roll adjustment devices for the iron and steel industry; civil and water conservancy engineering flood control dam devices, river bed lifting device, bridge control mechanism, etc.; steam turbine speed control device for power station, nuclear power plant, etc.; deck crane (winch), bow door, bulkhead valve, stern thruster, etc.; giant antenna control device, measuring buoy, special process lifting and rotating table, etc.; military industry Use gun control device, ship anti-rolling device, aircraft simulation, aircraft landing gear retractable device, rudder control device.Due to the residual compressive stress in the surface layer, the rolling process helps to close the surface micro-cracks and hinder the expansion of erosion.Thereby improving the corrosion resistance of the piston rod surface, and delaying the occurrence or expansion of fatigue cracks, thereby improving the fatigue strength of the piston rod.Through rolling forming, a cold work hardening layer is formed on the rolling surface, which reduces the elastic-plastic deformation of the contact surface of the grinding pair, improves the wear resistance of the cylinder rod surface, and avoids grinding burns.After rolling, the reduction in surface roughness can improve matching properties.At the same time, the frictional damage to the sealing ring or the sealing member during the movement of the piston rod is reduced, and the overall service life of the cylinder is improved.