论文部分内容阅读
焊接构件在焊接过程中会出现各种裂纹,焊接裂纹不仅给生产带来许多困难,而且可能带来灾难性的事故,据统计世界上焊接结构所出现的事故中,除少数是由于设计不当,选材不合理的问题外,绝大多数是由焊接裂纹而引起的破坏事故。据英国1965年的统计,在英国发生破坏的132台压力容噐中,由于焊接裂纹引起的破坏就有118台,占破坏总数的89.3%。从
Welding components in the welding process will appear a variety of cracks, welding cracks not only bring many difficulties to production, and may bring catastrophic accidents, according to statistics, the world’s welded structure accidents, except a few due to improper design, Material selection unreasonable problem, the vast majority is caused by the welding crack damage accident. According to the British survey in 1965, of the 132 pressure vessels damaged in the UK, 118 were damaged due to welding cracks, accounting for 89.3% of the total. From