Avoiding shrinkage defects and maximizing yield in ductile iron

摘要：

The paper discusses the methods to avoid shrinkage defects and maximize casting yields, including maximizing ％CE just below the level where flotation occurs, while using the minimum final Si and Mg contents; maintaining base S as steadily as possible; using nodulariser containing a low level of pure La and/or proprietary S and O coated inoculant, to generate finer nodule size; controlling the loss of nucleation in base iron and/or treated iron, due to excessive holding time; accelerating freezing at appropriate places rather than riser including metal chills, chill fins, or chilling inserts that freeze within the casting, and maintaining mould strength.

关键词： shrinkage defect graphite nodule carbon equivalent

作者: Doug White

作者单位: Manager Technical Services, Elkem Metals, Inc

会议类型: 国际会议

会议名称: The 11th Asian Foundry Congress(第11届亚洲铸造会议 AFC-11)

会议地点: 广州

会议语种:英文

页码: 1-9

在线出版日期: 2011-11-12（万方平台首次上网日期，不代表论文的发表时间）