Equipment for Shot Peening Strengthening the Surface of the Coupler Tongue of Train Forgings
2023.03.20
Liangshi Intelligent (stock code: 837430), as a leading manufacturer of surface treatment shot blasting and coating equipment systems in China, recently provided a set of shot peening equipment for strengthening the surface of the knuckle of train forgings for a company.
Equipment for Shot Peening Strengthening the Surface of the Coupler Tongue of Train Forgings
Practice has shown that with the increase in the running speed, total weight, and coupling speed of freight train cranes, the longitudinal force acting on the coupler increases, and therefore higher requirements are put forward for the strength of the coupler. Preventing the occurrence of freight train height separation accidents is an important issue that must be addressed while railway freight is developing towards heavy haul and high speed. Coupler fatigue fracture is one of the main causes of freight train height separation accidents, which directly affects the safe and reliable operation of freight trains.
To prolong the service life of the coupler, Shanghai Liangshi has conducted shot peening treatment on the tensile stress concentration area on the inner arc surface of the coupler, which can effectively improve the tensile stress on its surface to residual compressive stress. Shanghai Liangshi Precision Control Shot Peening Machine is used for shot peening of the surface of the coupler knuckle of train forgings. After shot peening, the service life of the forged coupler knuckle is longer than that of the cast coupler knuckle, bringing huge economic benefits to users.