Research on continuous annealing process of extremely thin IF steel
Simulate annealing treatment of extremely thin materials in a continuous annealing simulation device,and then study the differences in recrystallization temperature and performance changes of IF steel with different compo-sition systems at different annealing temperatures through hardness testing,tensile testing,and metallographic ob-servation.The results show that under the same compression ratio conditions,Mn IF steel begins to recrystallize be-fore P IF steel,but the recrystallization process and rate of the two are basically the same;Recrystallization is com-pleted at 700℃for Mn IF steel,and at 720℃for P IF steel;The mechanical properties achieved by complete re-crystallization of two types of IF steel are equivalent,and suitable composition designs can be selected according to the needs of the production organization during actual production.
IF steelcontinuous annealingrecrystallization temperaturemechanical propertiestinplate