Experiments showed that the titanium of different contents had varied influences on the structure and proper-ties of gray iron.
试验表明，不同含量的钛对灰铸铁组织和性能产生不同的影响。
The mechanism of the effect of titanium on structure and properties of gray iron was proposed.
对钛对灰铸铁组织和性能作用的机理提出了看法。
Nb has little effect on matrix structure of gray cast iron.
铌对过冷灰铸铁的基体组织无明显影响。
Controling conditions of production process to obtain developed isometric dendrite structure is one of the important measures to increase the strength property of gray iron.
控制生产工艺条件，获得发达等轴枝晶组织，是提高灰铸铁强度性能的重要技术措施之一。
The morphology of niobium compound of the gray iron with less than 1.2% of niobium addition and its influences on the structure and hardness were investigated.
研究了庆铸铁中含有1.2%以下的铌时所形成的铌化物的存在形态，及其对组织与硬度的影响。
The effect of rare earth and calcium on the structure and property of gray iron were analysed in detail through laboratory tests and production technology tests.
采用研制的合金进行试验室试验和现生产工艺试验，详细地分析了稀土、钙对灰铸铁组织和性能的影响。
This paper analyses the band structure with nodular graphite that was first found on the cross section of the gray iron bar in the experiment.
通过试验分析，首次在灰铸铁型材断面上观察到球状石墨的带状区，并对这种带状组织及成因进行了分析探讨。
This paper analyses the band structure with nodular graphite that was first found on the cross section of the gray iron bar in the experiment.
通过试验分析，首次在灰铸铁型材断面上观察到球状石墨的带状区，并对这种带状组织及成因进行了分析探讨。
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