Controlled rolling and controlled cooling process is one of the important process technologies for modern DNV DH32 steel plate production. In the production process of DNV DH32 steel plate, the process of controlling the combination of rolling and controlled cooling of DNV DH32 steel plate is called thermomechanical control process, namely TMCP technology. Controlled rolling is a technology that gives different reduction deformations to different temperature ranges of DNV DH32 steel plate during the rolling process to produce steel plates with fine grain, high strength, high toughness and good weldability.
According to different steel grades and thickness of DNV DH32 steel plate, the key to controlling rolling is to control the deformation of DNV DH32 steel plate in the temperature range of 950~600. In this temperature range, increasing the pass reduction is the rolling process It is an important way to produce grain refinement to obtain comprehensive mechanical properties of DNV DH32 steel plate.
