Tea Rolling Machine

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tea rolling machine is a machine that processes polished rods. The polished rod is generally used in motors, cylinders, cylinders, valves, linear bearings, pumping units, and the like. As a kind of high-efficiency heat transfer element, threaded pipe is widely used in boiler products. Nearly all shell-and-shell fuel oil and gas boilers use threaded pipes. Therefore, low-cost, high-efficiency and batch processing of threaded pipes has become a focus of concern for boiler manufacturers.

The basic feature of the polished rod is the slender shaft machining, which is difficult to process, and has strict requirements on coaxiality, straightness, smoothness and wear 

resistance, and has always been a problem that plagues the processing personnel. Rolling processing, due to the surface residual compressive stress on the surface layer, contributes to the closure of the surface micro cracks and hinders the expansion of the erosion effect. Thereby, the surface corrosion resistance is improved, and the generation or expansion of the fatigue crack can be delayed, thereby improving the fatigue strength of the cylinder rod. By rolling forming, the rolling surface forms a cold hardening layer, which reduces the elastic and plastic deformation of the grinding contact surface, thereby improving the wear resistance of the polished rod surface and avoiding burns caused by grinding. After rolling, the surface roughness value is reduced to improve the compounding property. At the same time, the friction damage to the sealing ring or the sealing member during the movement of the polished rod piston is reduced, and the overall service life of the component is improved.

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