英语翻译摘要：通过宏观分析、微观分析等方法,对牌号QT800-3球墨铸铁D6114曲轴裂纹进行分析,结果表明曲轴轴颈裂纹产生的主要原因是石墨漂浮造成石墨聚集、石墨球径过大从而使淬火的组

Question

英语翻译
摘要：通过宏观分析、微观分析等方法,对牌号QT800-3球墨铸铁D6114曲轴裂纹进行分析,结果表明曲轴轴颈裂纹产生的主要原因是石墨漂浮造成石墨聚集、石墨球径过大从而使淬火的组织应力和热应力共同作用的内应力超过材料断裂极限所致.
关键词：球墨铸铁；淬火裂纹；感应淬火；球化级别

Answer 1

Abstract: through macro analysis, microscopic analysis and other methods, for grades QT800-3 nodular cast iron crankshaft crack of D6114 are analyzed, the results show that crankshaft crack is the main reason causing graphite graphite floatation aggregation, diameter of nodular graphite is too large so that the quenching structure stress and heat stress effects of stress exceeds the material fracture limit.
Key words: ductile cast iron; quenching crack; induction hardening; spheroidizing levels