The effect of annealing processes on fish-scaling resistance in V-Ti-N microalloyed low carbon steel sheets for enameling

摘要

Annealing process will have greatly influence on microstructure of V, Ti and N microalloyed low carbon steel sheets. In this paper, the experimental steels with given amount of V, Ti and N elements were annealed at 4 routes to simulate batch annealing and continuous annealing processes, respectively. The enameling tests for the annealed steel sheets were undergone in same enameling and firing processes to study the relationship between microstructure and fishscale. The result shows that the cold-rolled steel sheets annealed at 750℃ for 6 minutes even for 30 minutes exhibit excellent fishscale resistance.