因子设计法在中硅钼蠕铁排气管材质研究中的应用

Application of Factor Design Method to Studying on Mid-Si-Mo VG Cast Iron for Exhaust Tube Casting

阐述了在中硅钼蠕铁排气管材质研究开发中应用因子设计方法的过程。通过因子试验的方法找出了影响伸长率的最显著因素是随流孕育 ,然后进行有针对性的加强、改进工作 ,从而使伸长率稳定达到技术条件要求。

The process of applying factor design method to studying on mid-Si-Mo vermicular graphite cast iron for exhaust tube casting is introduced in the paper. By the factor design experiments, the most outstanding influencing factor on the percentage elongation of the castings, the stream inoculation, is found out. After improving the producing technology according to the result of factor design experiments, the percentage elongation of the castings can meet the specification of the exhaust tube casting steadily.