spheroidal graphite

基本解释

In the first stage of the arrest, the spheroidal graphite nucleated prior to the eutectic freezing and grew with austenite shell.
第二阶段形成蠕虫状石墨，因包围球状石墨的奥氏体部分熔解，使它与熔液接触生长。
Adding different alloy combination of RE, copper and titanium, then through gestation and nodulizing disposal, we got the fine texture of ferrite pearlite and spheroidal graphite.
通过在中硅耐热铸铁中添加不同组合的合金元素稀土、铜、钛使其合金化，经过孕育和球化处理，得到铁素体+珠光体+球状石墨的金相组织。
The influence of flake and spheroidal graphite on oxyacetylene cutting characteristic of cast iron has been analysed.
讨论了石墨的物理性能，分析了片状和球状石墨聚集状态对铸铁气割性的影响。