摘要
振动器外壳为壁厚跃变较大的复杂铸件,原采用砂型铸造工艺,铸件存在缩孔、缩松和浇不足等缺陷。针对上述问题进行工艺改进,设计并制造了挤压铸造成形模具,并用改制的挤压铸造设备进行工艺试验。结果表明,通过优化铸造工艺,可大大改善壁厚跃变较大的复杂铸件质量。
The wall thickness of vibrator shell had significant changes.The original casting process for vibrator shell was designed by conventional sand casting.The shrinkage cavities and porosities were found in the casting.Aiming at this,the process is improved,the die of squeeze casting was designed and produced.Experiments were done on the home-made squeeze casting.The results indicate that the high quality castings can be produced by the improved casting process.
出处
《热加工工艺》
CSCD
北大核心
2010年第19期192-193,197,共3页
Hot Working Technology
基金
中航材料热加工技术航空科技重点实验室开放基金(ZK200801004)
南昌航空大学科研基金(EC200601042)
