Cause analysis of edge wrinkle forming of hot-rolled dual-phase steel and improving
Aiming at the problem of the wrinkle defect forming at the edge of hot-rolled dual-phase steel,the causes of the edge wrinkle defect forming were analyzed in combination with the metallogmphic examination and the production process analysis.The results showed that the microstructure difference in the edge was the main cause that led to the wrinkle defect at the edge of the steel.The relationship between the wrinkle defect with the lateral pressure of slab sizing press,the finishing rolling temperature and the temperature drop was analyzed.By reducing the lateral pressure of slab and increasing the finishing rolling temperature,the wrinkle defect at the edge of the slab could be eliminated generally.
hot-rolled dual-phase steelwrinkle defect at the edge of the slablateral pressurefinishing rolling temperature
NETL
NSTL
万方数据
维普
