23米~3挖掘机上最关键的部件之一是斗齿。这种铸钢件由于使用条件恶劣,要求具有强而韧、硬而坚的非常好的综合机械性能。因为硬度太高,则韧性太差,容易断齿,若强度太低则刚性太差,容易弯齿,这两种情况都要影响生产。因此技术条件要求相当严格,一定要强韧硬坚兼有之。挖掘机斗齿要达到七项技术指标(表)1)。 23 m ~ 3 excavator is one of the most crucial component of the teeth. This cast steel due to poor use conditions, requires strong, tough, hard and very good overall mechanical properties. Because the hardness is too high, the toughness is too poor, easy to broken teeth, if the strength is too low, the rigidity is too poor, easy to bend teeth, both cases have an impact on production. Therefore, the technical requirements of a very strict, must be tough tough both. Excavator bucket teeth to achieve seven technical indicators (table) 1).