充分利用最初温度分布生产健全黄铜阀杆

production of Sound Brassy valve Bar by Manipulating Initial Temprature Distribution

本文介绍了黄铜阀门丝杆的结构和成分特点,对各种失败的铸造工艺进行分析,从中找到了合理的方案。并从理论上论述了新方案的正确性,强调了最初温度分布对消除缩孔缩松的作用:

This paper introduces the speciality of construction and constituent of brassy valve bar casting A proper foundry technology for brassy bar castng is found out by analysing a lot of unsuccessful plan and the validity of the new version is clescrihed theoretically The role of initial temperature distribution in which played on the elimination of dispersed porocity is emphasised.