我厂2~#机汽轮机低压汽缸在运行中,由于机械损坏造成飞车,将低压汽缸外壳打坏。经检查发现多处裂纹,其中最长的一条达2米,并且在汽缸右端打了一个600×400×700毫米三角形洞。采用φ3.2毫米的铸308焊条进行了冷焊,焊补效果良好。焊补后开机运行以来,一切正常。焊补后缸体外壳见下图。 I plant 2 ~ # turbine low-pressure cylinder in operation, due to mechanical damage caused by the car, the low-pressure cylinder shell broken. After inspection found that cracks, of which the longest one up to 2 meters, and the right of the cylinder hit a triangular hole 600 × 400 × 700 mm. Using φ3.2 mm cast 308 welding electrodes were cold welding, welding effect is good. After welding up and running, everything is normal. Welding after the cylinder shell see below.