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本文讨论了ＦＴ８燃气轮机的各种机匣的焊接结构类型、材料特点及焊接技术要求，较详细地叙述了焊接工艺过程，并针对焊接变形问题和保证焊接质量提出了有关措施。
In this paper, the welding structure types, material characteristics and welding technical requirements of various casing of FT8 gas turbine are discussed. The welding process is described in detail. Some measures are put forward to solve the welding deformation and ensure the welding quality.