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2022-05-24 作者:Datong Hydraulic

The processing technology Of CK45 honing tube

The processing technology Of CK45 honing tube
2022-05-24 作者:Datong Hydraulic

The CK45 honing tube is rolled, because the residual compressive stress is left on the surface layer, which helps to close the tiny cracks on the surface and hinders the expansion of erosion. Thereby improving the surface corrosion resistance and delaying the generation or expansion of fatigue cracks, thus improving the fatigue strength of the honing tube. Through rolling forming, a layer of cold work hardening layer is formed on the rolling surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thus improving the wear resistance of the inner wall of the grinding tube and avoiding burns caused by grinding. After rolling process, the reduction of surface roughness can improve the matching properties. Rolling is a kind of chip-free machining, which makes use of the plastic deformation of metal at normal temperature to flatten the micro-roughness of the workpiece surface, so as to change the surface structure, mechanical characteristics, shape and size. Therefore, this method can achieve the two purposes of finishing and strengthening at the same time, which can not be achieved by grinding. No matter what kind of processing method is used, there will always be tiny scraggy marks on the surface of parts, and there will be staggered peaks and valleys. Rolling processing principle: it is a kind of pressure finishing processing, which uses the cold plastic characteristics of metal at normal temperature, and uses rolling tools to exert a certain pressure on the surface of the workpiece, so that the metal on the surface of the workpiece produces plastic flow and fills in the original residual low concave valleys, thus reducing the roughness value of the surface of the workpiece. Due to the plastic deformation of the rolled surface metal, the surface microstructure is cold hardened and the grains become thinner, forming dense fibrous shape and residual stress layer, which improves the hardness and strength, thus improving the wear resistance, corrosion resistance and compatibility of the workpiece surface. Rolling is a plastic machining method without cutting.

The difference between honed steel tube and cold drawn seamless steel pipe 

1. Seamless steel pipe is characterized by no welding seam and can bear greater pressure. Products can be very rough as-cast or cold-rolled parts.
2. Honing tube is a product appearing in recent years, which mainly has strict tolerance and roughness of inner hole and outer wall dimensions.

Datong Group is a professional manufacturer of honed steel tube and cold drawn seamless tube, also other hydraulic products, if you have any inquiry , please feel free to contact us.

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