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随着核电工业的发展,核电用不锈钢焊条的使用越来越广泛,对焊条全位置焊接性能的要求越来越高,特别是要求焊条既有优良的立向上焊工艺性能,又有良好的平焊工艺性能。该文对不锈钢焊条全位置焊接工艺性能的影响因素及其改进方法进行了深入研究,利用研究成果成功研制了核电站主设备用E308L不锈钢焊条。其全位置焊接工艺性能优良,实现了该类焊条的国产化开发,可替代进口产品。一、核电站主设备用E308L不锈钢焊条研制
With the development of the nuclear power industry, the use of stainless steel electrodes for nuclear power is more and more widely used, and the requirements for the full-position welding performance of electrodes are higher and higher. In particular, the welding electrodes are required to have both excellent vertical up-welding process performance and good flatness Welding process performance. In this paper, the influential factors of the all-position welding process performance of stainless steel welding rod and its improving methods are deeply studied. Based on the research results, the E308L stainless steel welding rod for main equipment of nuclear power station has been successfully developed. Its all-position welding process performance is excellent, to achieve the kind of electrode localization development, can replace imported products. First, the main equipment of nuclear power plant with E308L stainless steel electrode development