铸造2011，Vol.60Issue(10)：956-958,3.
耐低温球墨铸铁输送管的生产实践
Production Practice of Ductile Iron Pipeline with Low-Temperature Resistance
姜士平 1苏文生 1孙鑫志1
作者信息
- 1. 沈阳铸锻工业有限公司,辽宁沈阳110142
- 折叠
摘要
Abstract
The casting process of ductile iron pipeline with high impact strength and high toughness at low temperature was presented. Through reasonable graphite spheroidizing treatment and inoculation, the structure with fine spheroid graphite and high percent of spheroidization was obtained. The feederless casting of pipeline was realized by intensive cooling on the heavy section by using of chill, and making full use of self-feeding of graphitization expansion. The as-cast structure of pipeline obtained satisfies the requirements of mechanical properties and low temperature impact strength of EN-GJS400-18U-LT.关键词
球墨铸铁/低温冲击/脆—塑转变温度/无冒口铸造/自补缩Key words
ductile cast iron/ low-temperature impact/ brittle-plastic transition temperature/ feederless foundry/ auto-feeding分类
矿业与冶金引用本文复制引用
姜士平,苏文生,孙鑫志..耐低温球墨铸铁输送管的生产实践[J].铸造,2011,60(10):956-958,3.
