钛处理16MnR(g·q)宽厚钢板提高强韧性研究

A Study on Improved Strength and Toughness of Ti Treated 16 MnR(g·q) Broad Heavy Steel Plate

钛处理16MnR（g·q）宽厚钢板冶炼时，控制2．5≤Ti／N＜3．4，钛含量达到0．008％～0．020％，酸溶铝达到0．015％～0．035％，钢包内要吹氩搅拌，硫含量高可渣洗。连铸大板坯、模铸大钢锭可采用高温再结晶轧制喷水加速冷却新工艺来代替原中低温控轧工艺，生产（10～100）min×（1800～3800）min×（4000～12000）mm钢板，使钢的强韧性和焊接性能等达到国际水平标准要求。

Making Ti treated 16 Mn(g·q) broad heavy plate steel must ensure 2.5≤Ti/N＜3. 4, Ti content ranging between 0.008% and 0.020%, acid-soluble aluminium from 0.015% to 0.035% argon, stirring in molten steel ladle and washery slag when Si content-ishigh. Instead of medium-low temperature controlled rolling technology, it is possible to manu facture(10～100)mm×(1800～3800)mm×(4000～12000)mm steel plate from con-tinuous cast slab and mould cast ingot by adopting the newly developed technology of high temperature recrystallization rolling water spray accelerated cooling, strength, toughness and weldability of the steel attaining the world level.