Aiming at the problem that the cylinder weld cracks frequently occur during the operation of the rubber wheel cylinder mixer,in this paper,through the analysis of the residual stress in the weld zone and the stress of the cylinder,it is found that the stress concentration caused by the superposition between the residual stress of welding and the additional stress of the cylinder in the running process is the main reason for the cracking of the cylinder.Based on this,some corresponding solutions were given.And the practical application shows that these measures can solve the problem of frequent cracking of the drum and effectively increase the service life of the mixer.
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