It is found that the 'delamination always takes place along the centerline segregationband in pipe-line steel produced by continuous casting and then controlled rolling.
初步研究发现，对由连铸然后经控制轧制生产的管线钢层状撕裂几乎总是沿中心线偏析带发生。
2
Results show that the primary cause to the laminar defect of the umbrella bone steel in the process of cold bending to U-shape is the severe carbon segregation in the steel band.
结果表明，钢带中部严重的碳偏析是导致在冷弯成U形伞骨时，形成钢带分层的主要原因。
3
It was found that the broach was locally overheated due to bandsegregation of carbide, and under-tempered. These factors caused fracture of broach as a result of high internal stress.