大型核电主管道制造技术的发展

Development of Manufacture Technology for Main Pipe of Large-sized Nuclear Power

美国西屋公司AP1000技术是我国引进的第三代核电技术,由于其设计寿命提高到60年,其主管道制造采用整体锻造技术。接管嘴要求与主管一体锻造而成,而且整根管道(包括弯管部分)不允许有环焊缝,属于典型的形状复杂的异形件锻造,制造难度大。本文阐述了主管道材料和成形制造技术的发展情况,根据AP1000核电主管道整体锻造的要求,较为详细地叙述了国内外主管道整体成形制造技术的发展状况和研究展望。

The development of material and forming technology for the main pipe has been studied in the text. As per requirements for the integrated forging technology of the AP1000 main pipe,the development status and prospects for the study of the integrated manufacturing technology for the main pipe in and out of China have been introduced in details.