Through the study on both the internal structure and the nucleus shape in low carbon ductile iron, influencing regularity of the nucleus shape on the graphite spheroidization has been discussed.
研究了低碳球铁中球状石墨的内部结构及核心形状,探讨了核心形状对石墨球化的影响规律。
Through tests influencing regularity of the three emulsions and their additions on cement mortar performance were mastered systematically, thus obtaining appropriate range of three emulsion additions.
通过试验系统地掌握了三种乳液及其掺量对水泥砂浆性能影响的规律,并由此得出三种乳液适宜掺量范围。
Through the rolling experiments, the influencing regularity of the rolling starting temperature and the rolling reduction on the microstructure and the mechanical properties has been obtained.
再轧制实验,获得了不同开轧温度和轧制压下量对组织性能影响数据。