ITER PF支撑结构焊接技术

摘要

介绍了ITER PF支撑结构制造工艺及焊接技术方案,阐述了对控制焊接变形应力、提高低温冲击韧性、控制焊缝铁素体含量等采取的技术措施.焊后应力消除方案以及防变形措施使得加工精度和成品质量得到了提高.%The manufacturing process and welding technology of PF coil support are introduced, and the taken technical measures to control the deformation stress of welding, to improve low temperature impact toughness and to control the weld ferrite content are explained. The machine accuracy and the quality were improvedthrough post weld stress relief and anti deformation measures.