杨振国, 李法兴, 孙永喜, et al. Production Practice of Wheel Body Steel 40Mn2H-S for Engineering Machinery by EAF-LF (VD)-CC Flow Sheet[J]. Special Steel, 2011, 32(2): 46-48.
杨振国, 李法兴, 孙永喜, et al. Production Practice of Wheel Body Steel 40Mn2H-S for Engineering Machinery by EAF-LF (VD)-CC Flow Sheet[J]. Special Steel, 2011, 32(2): 46-48.DOI:
莱钢特钢通过50 t EAF-LF(VD)-260 mm×300 mm方坯连铸-轧制工艺生产轮体用钢40Mn2H-S(%:0.39~0.41C、0.21~0.26Si、1.55~1.60Mn、0.025~0.035Al)Φ80~130 mm棒材。EAF炉料为50%铁水+废钢
出钢过程加1.5~2.5 kg/t
钢
钢芯铝
LF出钢喂Al线调整[Al
]
为0.020%~0.040%
连铸全保护浇铸
(M+F)EMS电磁搅拌
使该钢中[O
]
、[N
]
平均值达14.5×10
-6
、72×10
-6
低倍组织≤1.0级
非金属夹杂物A、B≤1.5级、C、D≤1.0级
晶粒度≥7级、末端淬透性及力学性能等指标均满足用户要求。
Abstract
The Φ80 〜130 mm round bar products of wheel body steel 40Mn2H-S (% : 0. 39 ~0. 41C
0. 21 -0. 26Si
I. 55 ~ 1. 60Mn
0. 025 ~0. 035Al) are produced by 50t EAF-LF (VD)-260 mm x300 mm continuous casting-rolling process at Laiwu Special Steel. With EAF charging-50% hot metal + scrap