Consteel电弧炉-AOD二步法冶炼300系Cr-Ni奥氏体不锈钢的工艺优化

特殊钢 ›› 2012, Vol. 33 ›› Issue (1): 30-31.

Consteel电弧炉-AOD二步法冶炼300系Cr-Ni奥氏体不锈钢的工艺优化

高玉来¹, 李闯²

1中冶华天工程技术有限公司，马鞍山243005；
2冶金工业规划研究院，北京100711

收稿日期:2011-07-11 出版日期:2012-02-01 发布日期:2022-09-20
作者简介:高玉来（1971-）,男，高级工程师，1994年北京科技大学毕业，炼钢工艺设计。

Optimization of Process for 300 Series Cr-Ni Austenitic Stainless Steel Melted by Consteel Arc Furnace-AOD Two Step Method

Gao Yulai¹ , Li Chuang²

1 Huatian Engineering and Technology Corporation, MMC, Ma'anshan 243005 ；
2 Metallurgical Industry Planning and Research Institute, Beijing 100711

Received:2011-07-11 Published:2012-02-01 Online:2022-09-20

摘要/Abstract

摘要： 在钢厂生产的300系不锈钢原工艺为140 t EAF-150 t AOD二步法,EAF采用部分低镍高磷生铁炉料冶炼,其终点[P]为450×10^-6。为降低EAF终点[P],改进的工艺为60 t Consteel电弧炉+140 t EAF-150 t AOD流程。60 t Consteel EAF用低镍高磷生铁,其终点[P]为≤250×10^-6,加上85 t EAF终点[P]450×10^-6的钢水,使AOD精炼前的[P]≤360×10^-6。新工艺冶炼周期缩短10～30 min,钢水磷含量从450×10^-6降至360 X 10^-6以下,提高了不锈钢产品质量,并显著降低了生产成本。

Abstract: The original process to produce 300 series stainless steel at steel works is 140 t EAF-150 t AOD two step method, and with charging partial low nickel high phosphorus pig iron, the EAF end [ P] is 450 x 10^-6. In order to decrease EAF end [P], the improved process-60 t Consteel arc furnace + 140 t EAF-150 t AOD flow sheet is adopted. With charging low nickel high phosphorus pig iron in 60 t Consteel arc furnace, its end [ P] is ≤250 x 10^-⁶, mixing with 85 t end [ P] 450 x 10 ^-6 EAF liquid, the [P] before AOD refining is ≤360 x 10 ^-6. With using new developed process, the tap-to-tap time reduce by 10 ~ 30 min, the phosphorus content in liquid decreases to less than 360 x 10^-6from original 450 x 10^-6, the product quality of stainless-steel increases and the production cost decreases obviously.

高玉来, 李闯. Consteel电弧炉-AOD二步法冶炼300系Cr-Ni奥氏体不锈钢的工艺优化[J]. 特殊钢, 2012, 33(1): 30-31.

Gao Yulai, Li Chuang. Optimization of Process for 300 Series Cr-Ni Austenitic Stainless Steel Melted by Consteel Arc Furnace-AOD Two Step Method[J]. Special Steel, 2012, 33(1): 30-31.