摘要
本溪钢铁集团有限公司采用"铁水脱硫预处理→复吹转炉冶炼→LF→RH→矩形坯连铸→热送步进式加热炉→24架高刚度短应力线连轧机组→保温→精整包装"的工艺路线成功地试生产了20CrMnTiH齿轮钢。其产品Φ90～180 mm齿轮钢化学成分均达到窄范围控制指标,各项物理检验指标完全满足技术条件要求。
The 20CrMnTiH gear steel is successfully produced in BX Steel Group by adoption of the technological route of ＂hot metal desuiphurization pretreatment→combined blown process→LF plus RH refining→rectangular bloom CC （350 mm × 470 mm） →hot charging walking beam type reheating furnace→24 high heavy rigidness and short stress rolling mill→temperature hold→finishing packing＂. The chemical compositions of the finishing products Ф90-180 mm gear steel are in conformity with the controlling index and each and every physical examination index completely meets the technological requirements.
出处
《炼钢》
CAS
北大核心
2011年第2期10-12,共3页
Steelmaking
关键词
转炉
矩形坯
轧制
齿轮钢
淬透性
converter
rectangular bloom
rolling
gear steel
hardenability
