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风电机组球墨铸铁件缩松分析及预防措施
Analysis and Preventive Measures of Shrinkage Defects in Wind Turbine Castings of Spheroidal Graphite Iron
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- DOI:
- 作者:
- 李肖霞 王京丽 杨扩岭
山东中车风电有限公司
- 作者单位:
- LI Xiaoxia;WANG Jingli;YANG Kuoling(CRRC Wind Powe
CRRC Wind Power(Shang Dong)Co.,Ltd.,Jinan 250022,China
- 关键词:
- 风电机组 球磨铸铁 缩松 原因分析 预防措施
wind turbine spheroidal graphite iron casting shrinkage defect cause analysis prevention and treatment
- 摘要:
- 从铸件本身的结构、砂型的质量、浇注系统设计、熔炼和浇注温度五个角度分析了风电机组球墨铸铁件缩松缺陷的产生原因,并从化学成分控制、铸造工艺控制、冶炼工艺控制三个方面提出了预防措施,有效避免缩松缺陷的产生。
The reasons of shrinkage and porosity in ductile iron of wind turbine were analyzed from five aspects:the structure of casting itself,the quality of sand mould,the design of gating system,melting and pouring temperature.The preventive measures from chemical composition control,casting process control and smelting process control were put forward.The results show that the shrinkage defects are effectively avoided.