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Shenyang jingui casting factory
Email address: firstname.lastname@example.org
Address: no. 15, liaozhong commercial street, shenyang city
Website construction and maintenance: 18202401465
Automatic variable - pressure crankshaft round - Angle rolling press refers to the processing of the light rod machine. Polished rod (can also be called the piston rod, etc.) in motor, cylinder, cylinder, valve, linear bearings, pumping unit in application, such as the basic characteristics of the polished rod is slender shaft processing, the processing difficulty is big, the coaxial degree, straightness, strict smoothness, wear resistance, has been a problem in processing personnel. Rolling process is adopted, because the surface layer has residual surface compressive stress, which is conducive to the sealing of small cracks on the surface and hinders the expansion of erosion. In this way, the surface corrosion resistance can be improved, and the fatigue crack can be delayed or expanded, so the fatigue strength of cylinder rod can be improved. Roll forming, by forming a layer of cold work roll surface hardening layer, reducing the grinding pair of elastic and plastic deformation of the contact surface, thus improve the wearability of the polished rod surface, at the same time avoid the burn caused by grinding. After rolling, the surface roughness can be improved by decreasing. At the same time, it reduces the friction damage to the sealing ring or sealing parts when the piston moves, and improves the overall service life of the parts. After rolling, the surface roughness of the bar decreases from Ra3.2~6.3um before rolling to Ra0.1~0.8um, the surface hardness of the bar increases by about 30%, and the fatigue strength of the bar surface increases by 25%. The service life of oil cylinder is increased 2~3 times, and the rolling process is about 15 times more efficient than the grinding process.