CONTROLLED ROLLING METHOD OF EXTREMELY THICK STEEL AND EXTREMELY THICK STEEL MANUFACTURED USING THE SAME

摘要

alloy composition control and process conditions to control the thickness of the heart of the organization through a refinement to be available and in addition , the thickness discloses to the control rolling method , and this pole humul steel manufactured using the electrode plate humul that reduces the material according to the deviation direction . Controlled rolling method of a pole humul plate according to the invention the slab plate SRT (Slab Reheating Temperature): the steps of re-heating to 1000 ~ 1100 ; The slab reheating the plate with a pick and roll length roll bet RDT (Roughing Delivery Temperature): 950 ~ 980 step of the first rolling conditions; And FRT as the primary pick a rolled sheet rolling and rolling length betting (Finish Rolling Temperature): Ar ₃ ~ Ar ₃ + 100 to secondary rolling conditions stage ; characterized in that it comprises a ;