超大型锻件是建造压水堆核电核岛主设备的关键基础材料。在推进国产化工作之前,该类大锻件被极少数国外先进企业垄断,国内核电项目建设只能依赖进口锻件,不但价格高昂,进度也难以保证,成为核电快速发展的瓶颈。 Very large forgings are the key building blocks for PWR nuclear island main equipment. Prior to advancing the localization work, such large forgings were monopolized by a very small number of advanced foreign enterprises. The construction of domestic nuclear power projects can only rely on imported forgings. Not only the high prices but also the progress can not be guaranteed, which has become a bottleneck in the rapid development of nuclear power.