铸造技术2012，Vol.33Issue(10)：1197-1199,3.
球铁件皮下气孔与壁厚的关系研究
Relationship Between Thicknesses and Blowholes in Nodular Cast Iron
张月平 1万苏文 1唐太元 2缪建坤2
作者信息
- 1. 淮安信息技术学院机电工程系,江苏淮安223003
- 2. 江苏清拖农业装备有限公司,江苏淮安223003
- 折叠
摘要
Abstract
Ductile iron samples with different wall-thickness were cast with the same one ladle of molten metal, the pinhole defects was found in some of the wall-thickness castings. The formation mechanics of blowholes in the nodular iron castings was discussed, and the formation time of blowholes was also studied. The results show that the forming of blowholes is relative to the wall thickness of castings, and is the gaming results between the oxide films forming and the bubbles migration. Raising the carbon equivalent is useful to avoid the forming of blowholes for the castings having sensitive thickness.关键词
皮下气孔/铸件壁厚/碳当量/氧化结膜/气泡迁移Key words
blowhole/ casting wall thickness/ carbon equivalent/ oxide film/ bubble migration
分类
矿业与冶金引用本文复制引用
张月平,万苏文,唐太元,缪建坤..球铁件皮下气孔与壁厚的关系研究[J].铸造技术,2012,33(10):1197-1199,3.
