Taking wheel hub as example, the investigation on the production process of heavy nodular iron castings used for wind turbine generator was introduced.
以轮毂为例，介绍对大型风力发电机球墨铸铁件生产工艺进行的试验研究。
The RE(Y)-Mg-Si-Fe nodularizer had been used to cast heavy sectioned high ductile nodular iron cooling wall castings.
应用钇基重稀土镁复合球化剂，铸造厚大断面高韧性球铁冷却壁，成功地获得了铸件中心部位铸态高性能。
The defects that easy occurred in heavy section ductile iron castings as well as the prevention measures were reviewed.
概述了厚大断面球墨铸铁件易产生的几种缺陷及防止措施。
A small apparatus used for simulating cooling environment of heavy section ductile iron castings was developed by authors themselves.
自行研制了模拟厚大铸件的冷却环境的小型凝固装置。
The paper is about how to obtain the densified structure of heavy-wall nodular iron castings under the condition of gravity foundry and to introduce the authors research in this area in detail.
针对日益开始清晰的厚壁球铁件凝固特性，提出了获得其致密组织的较为系统的工艺设计思想；以作者主持完成的典型的生产实例验证了控制方法的有效性，并在此基础上讨论了控制方法的拓展途径。
The paper is about how to obtain the densified structure of heavy-wall nodular iron castings under the condition of gravity foundry and to introduce the authors research in this area in detail.
针对日益开始清晰的厚壁球铁件凝固特性，提出了获得其致密组织的较为系统的工艺设计思想；以作者主持完成的典型的生产实例验证了控制方法的有效性，并在此基础上讨论了控制方法的拓展途径。
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