Cylinder Honed Tubes processing technology

- Dec 23, 2020-

Rolling processing plays an active role in forming the honing tube. The honing tube is different from ordinary steel pipe materials. It is a high-precision product. The outer wall has no oxide layer, withstands high pressure and no leakage, high precision, high smoothness, cold bending without deformation, expansion The advantages of mouth, flattening and no cracks are all in one. Such an excellent honing tube is made by rolling, which fully proves the important role of rolling. The surface layer of the honing pipe after the rolling process leaves the surface residual compressive stress, which helps to close the surface micro-cracks, hinders the expansion of corrosion, thereby improving the surface corrosion resistance, and can delay the generation or expansion of fatigue cracks, thus improving Fatigue strength of honing tube. Moreover, through roll forming, the rolling surface of the honing tube forms a layer of cold work hardening, 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 honing tube, and avoiding grinding Burns caused. After rolling, the surface roughness value of the pipe is reduced, which can improve the matching properties. In fact, rolling processing is a kind of chipless processing. It uses plastic deformation of metal at room temperature to flatten the microscopic unevenness of the surface of the workpiece so as to achieve the purpose of changing the surface structure, mechanical characteristics, shape and size. Therefore, this method can achieve both smoothing and strengthening purposes at the same time, which cannot be achieved by grinding, and can have a positive effect on the shaping of the honing tube. However, no matter what processing method is used for processing, there will always be fine uneven tool marks on the surface of the part, and the phenomenon of staggered and undulating peaks and valleys. The rolling process of the honing tube is no exception, but this appearance structure is also conducive to Improve the wear resistance of pipes. It is a common phenomenon that the honing tube is worn during application, but if it goes on like this, it will inevitably shorten its service life. In addition to prolonging its service life, it also promotes the full use of its effect. In order to achieve this goal, we must first ensure that the machine can be started and started correctly to avoid poor lubrication caused by this, thereby increasing the wear of the honing tube. Secondly, it is necessary to reduce the entry of impurities, which also uses the role of filters; at the same time, the correct choice of lubricating oil is also very important. The basic requirement is moderate viscosity to ensure that it has good quality. There is another point I have to mention, that is, once a problem is discovered during its use, the problem should be solved in time, and the regulations must be strictly followed, and all unfavorable factors must be excluded.

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