Analysis on Fracture Reason of 23MnNiMoCr54 Chains Annulus
23MnNiMoCr54 chains annulus fracture was analyzed during production by fracture observation and microanalysis.The results show that the surface crack of raw material results in delamination-shape crack of chains annulus,the unreasonable technology parameters of flash butt welding results in fracture of chains annulus.Fracture and cracking of chains annulus are avioded by strict surface test and adjusting technology parameters of flash butt welding reasonably.