风电变速箱齿轮锻件探伤不合格原因分析  

Failure Analysis of Wind Power Transmission Gear Forgings

作　　者：陈斌 Chen Bin(Jiangyin Xingcheng Special Steel Works Co.,Ltd.,Jiangyin Jiangsu 214429)

机构地区：[1]江阴兴澄特种钢铁有限公司,江苏江阴214429

出　　处：《山西冶金》2023年第4期45-46,49,共3页Shanxi Metallurgy

摘　　要：风电齿轮用18CrNiMo7-6连铸圆坯钢经过锻造加工后,经超声波探伤发现不合格,将缺陷定位后进行解剖分析,使用扫描电镜定性分析确定夹杂物组成,找出产生缺陷的原因,再结合炼钢过程找到夹杂物的产生源头并提出改善建议。The steel 18CrNiMo7-6 continuous casting round billet steel used in wind turbine gear was found unqualified by ultrasonic inspection after forging processing.The defects were located and dissected.The inclusion composition was determined by SEM qualitative analysis,the causes of the defects were analyzed,and the source of inclusion was found by combining with the steelmaking process and suggestions for improvement were put forward.

关 键 词：连铸圆坯 夹杂物 扫描电镜分析 

分 类 号：TG115.28[金属学及工艺—物理冶金] TF777.1[金属学及工艺—金属学]