基于风电球墨铸铁件的强度提升研究及实践  

Study and Practice of Strength Enhancing Based on Wind Power Ductile Iron Castings

作　　者：李英昌 董健 员一泽 刘海涛 LI Ying-chang;DONG Jian;YUN Yi-ze;LIU Hai-tao(Guodian United Power Technology Company Ltd.,Beijing 100039,China)

机构地区：[1]国电联合动力技术有限公司,北京100039

出　　处：《铸造》2021年第4期483-485,共3页Foundry

摘　　要：风电补贴退坡及平价上网形势下,倒逼技术提升而实现降本需求,其中重量占比较高的风电球墨铸铁需要更高性能的产品开发。通过研究材料化学成分、球化、孕育工艺控制和微量元素控制,获得强度高于QT400-18AL的铁素体基球墨铸铁材料,且满足低温冲击韧性,对风电机组结构轻量化设计及技术降本具有重要意义。The decline of wind power subsidies and the grid parity forced wind power industry to upgrade technology continuously and reduce the cost,in which the ductile irons for wind power need to be studied further to achieve higher performance.In the work,a higher strength ferrite ductile iron was developed based on QT400-18AL by adjusting the chemical composition,reasonable spheroidization and inoculation treatment and trace elements control.The higher strength ductile iron can meet the requirement of low-temperature impact toughness,which has an important significance for the lightweight design of wind turbine structure and technology cost reduction.

关 键 词：球墨铸铁 风电 强度 低温冲击韧性 

分 类 号：TG255[金属学及工艺—铸造]