Failure analysis of perforation of volute tongue of mixer truck water pump
mixer truck water pump cast aluminum worm shell tongue at the use of about 3 months after the perforation leakage,the use of compositional analysis,metallurgical analysis,macro,low and micro-scopic morphology observation and other means of the worm shell tongue perforation failure reasons were analyzed.The results show that the water pump shell in the tongue of the serious cavitation damage,and the higher service temperature and the material's own low resistance to cavitation of the joint role of the phenomenon prompted the occurrence of serious cavitation.
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万方数据
