CAJ | 학술논문

本文阐述一种化学成分要求苛刻的精钢材的冶炼过程，冶炼流程为30 t EAF-LF-VHD。详述了冶炼精钢材保证化学成分合格的各工序控制难点及冶炼操作的要点，达到电炉脱磷至w（P）≤0．001％、LF炉脱硫至w（S）≤0．003％以及VHD炉精炼深脱硫至w（S）≤0．001％。
본문천술일충화학성분요구가각적정강재적야련과정，야련류정위30 t EAF-LF-VHD。상술료야련정강재보증화학성분합격적각공서공제난점급야련조작적요점，체도전로탈린지w（P）≤0．001％、LF로탈류지w（S）≤0．003％이급VHD로정련심탈류지w（S）≤0．001％。
The smelting process of fine steel ,of which chemical composition required is strict , was de-scribed.The steelmaking process is 30t EAF -LF -VHD.The control difficulties and the key of smelting operation for each process is presented , which can ensure chemical composition qualified , such as, dephophorization of EAF to P≤0.001%, desulfurization of LF to S≤0.003%and desulfu-rization of VHD to S≤0.001%.