论文部分内容阅读
我国球铁产量大,应用广.由于越来越多的流水线投产,生产效率大大提高.因而质量的快速、无损检测急待解决.
China’s ductile iron production, wide application, due to more and more pipeline put into production, greatly increased production efficiency.Therefore, the rapid quality, non-destructive testing urgent solution.