铸造2013，Vol.62Issue(8)：804-807,4.
影响细长薄壁细晶叶片铸造成形因素研究
Study on the Effect Factors of Forming of Fine Grain Casting Thin-Wall Slender Turbine Blade
闫红梅 1王永明 1黄爱华 1王铁军 1丛健 1崔树森 1于兴福2
作者信息
- 1. 沈阳黎明航空发动机(集团)有限责任公司,辽宁沈阳110043
- 2. 沈阳工业大学材料科学与工程学院,辽宁沈阳110870
- 折叠
摘要
Abstract
By adjusting method ways ofshell preserve heat,preheating temperature and casting temperature of a slim slender fine grain casting of low pressure turbine blade,we studied the parameters of casting process which influence misrun,cold-lap,grain size and porosity defect.The result show that the ways of shell preserve heat by sand filling and thermal insulation blanket parcel had same effect on misrun,cold-lap,and porosity defect.When preheat temperature of shell is higher than 1 150 ℃,grains will coarsen.With 1100 ℃ preheated temperature of the shell and 1 450 ℃ of pouring temperature,the misrun and cold-lap defects are easy to occur.When the shell was preheated at 1 100 ℃ and,pouring at 1 500 ℃,the cold-lap,misrum,coarsen grain defects could be effectively avoided.The improvement of gating system can effectively solve the porosity defect in slim slender turbine blade.关键词
精密铸造/疏松/晶粒细化/涡轮叶片Key words
investment casting/ porosity/ refine grains/ turbine blade分类
矿业与冶金引用本文复制引用
闫红梅,王永明,黄爱华,王铁军,丛健,崔树森,于兴福..影响细长薄壁细晶叶片铸造成形因素研究[J].铸造,2013,62(8):804-807,4.
