摘要
本文介绍了壳型冷激铸造神龙凸轮轴试制初期轴颈铁素体含量高、D型石墨超标,引起轴颈硬度低、加工时表面粗糙度超差的问题,并分析了其产生的原因。通过合理控制铁液的过热,改进化学成分,控制浇注温度,改进浇冒口系统等,轴颈铁素体得到消除、D型石墨得到减少,切削加工性能得到显著改善。
Shell Mould Chilled Casting has been introduced. Causes, have been analysed, of problems in initial stages of trial_produce of Shenlong camshaft such as lower hardness of shaft neck and poor surface roughness in processing, by high content of ferrite in shaft neck and super content of D_type graphite, which can be eliminated via measures as proper control of overheat of the melt, improvement on chemical composition, control of pouring temperature, improvement on gating and riser system.
出处
《中国铸造装备与技术》
CAS
北大核心
2003年第6期35-37,共3页
China Foundry Machinery & Technology
