铸造技术2011，Vol.32Issue(1)：24-26,3.
用碲涂料替代冷铁解决灰铸铁件缩松的生产应用
Production Application of Using Coating to Replace Chill for Solving the Casting Shrinkage
冯英宇1
作者信息
- 1. 沈阳职业技术学院,辽宁,沈阳,110045
- 折叠
摘要
Abstract
In order to eliminate shrinkage defects on the hot spot of the complex structured iron castings, where it is inconvenient to place the riser and the chill irons, tellurium-based coating has been prepared and used, according to the chilling feature of tellurium which can make the molten metal solidified rapidly and get the compact surface of casting.The result indicates that telluriumbased coating makes the chill structure at surface layer in 0.6 mm, and makes the compact layer of gray iron of 0.6～6 mm under the surface layer, and refine the crystal grain obviously in this layer.Thus shrinkage porosity on the hot spots can be prevented, and casting leakage problem can be solved.It has been successfully used in production with very good economic efficiency.关键词
碲基涂料/热节/凝固速度/顺序凝固/缩松分类
金属材料引用本文复制引用
冯英宇..用碲涂料替代冷铁解决灰铸铁件缩松的生产应用[J].铸造技术,2011,32(1):24-26,3.
