China High quality Polished steel pipe Manufacturer – Cylinder Tube DNC Pneumatic Cylinder Aluminum Tube – Future Metal

The main purpose of hydraulic cylinder

Hydraulic and pneumatic cylinders; hydraulic pipelines; pipes for spinning, textile and printing machinery;

Automobile shock absorber pipe; shaft sleeve; piston rod and precision alloy steel pipe.

According to customer requirements, we can also provide: fixed-length tubes, honing tubes, and special heat-treated tubes.

In order to obtain a good honing effect, in addition to the selection of good honing tools and the correct selection of grinding rod materials and particle size, the use of process parameters during honing also has a large impact on processing quality and productivity. Hydraulic cylinder refers to the pressure exerted by the sand bar on the surface of the workpiece, which is determined by the hardness of the processed surface, the nature of the grinding bar and the requirements of the processed surface roughness.

Cylinders are the main components of hydraulic cylinders, single pillars for mines, hydraulic supports, gun barrels and other products. The quality of their processing directly affects the life and reliability of the entire product. The cylinder barrel has high processing requirements, and its inner surface roughness is required to be Ra0.4~0.8&um, and the requirements for coaxiality and wear resistance are strict.

The use of rolling processing, because the surface layer leaves the surface residual compressive stress, it helps to close the surface micro-cracks and hinder the expansion of erosion. So as to improve 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 matching performance.

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