The relation between chemical composition of alloyed steel and its hardness under continuous cooling is built by Back Neural Network(BP) method.
连续冷却相变实验研究表明,BP模型用于全贝氏体型非调质钢的成分设计是有效的。
Micro alloyed steel is one of the major high tech steels with largest market demand.
微合金钢就是这些「高技术钢材」中用量最大的一种。
The series of welding wires are mainly suitable for welding low alloyed steel structure.
该系列焊丝主要适用于焊接低碳钢和低合金钢结构。
The series of welding wires are mainly suitable for welding important low carbon steel and low alloyed steel structure.
该系列焊丝主要适用于焊接重要的低碳钢和低合金钢构。
The morphology of sulphide inclusions in sulphur-comprising micro alloyed steel manufactured by converter after rolling was observed.
用金相显微镜、扫描电镜和能谱观察和分析了转炉生产的含硫非调质钢轧后硫化物夹杂的形貌。