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研究了锆－ ２ 合金压力管组件的焊接技术和工艺，采用自制的全封闭式氩气保护装置和胎具，在焊接时使压力管焊缝区内外始终处于层流氩气保护状态，阻止大气的侵入，减少了氩、氢、氮等有害气体的影响，从而保证了焊接质量，焊接成型后锆－ ２ 合金压力管组件不直度小于０ ．７ ‰，焊缝达到一级标准，同时力学性能、抗腐蚀性能、耐冲刷性能均达到核反应堆用锆材的标准要求，为大尺寸锆管的焊接提供了有效的方法。
The welding technology and process of zirconium - 2 alloy pressure pipe assembly are studied. The self - made fully enclosed argon gas protection device and tire are used to keep the pressure pipe weld zone inside and outside the laminar flow argon gas protection during welding and to prevent the atmosphere Of intrusion, reducing the impact of argon, hydrogen, nitrogen and other harmful gases, so as to ensure the welding quality, after welding the zirconia - 2 alloy pressure pipe assembly is not straightness less than 0. 7 ‰, the weld reaches a standard, at the same time mechanical properties, corrosion resistance, erosion resistance of nuclear reactors have reached the standard zirconium requirements for the welding of large-size zirconium pipe provides an effective method.