摘要
通过ANSYS软件建立了37Mn5钢Ф0mm圆坯连铸的传热模型，研究了在铸坯传热过程中铸机拉速1．3～1．5m／min，钢水过热度15°-60°，二冷比水量0．58—0．78L／kg对铸坯表面温度、凝固坯壳厚度和凝固终点位置的影响。结果表明，控制稳定的较低拉速、低过热度、较弱二冷比水量可有效地避免37Mn5钢中210mm铸坯裂纹的形成，提高铸坯的冶金质量。
A heat transfer model for steel 37Mn5 Ф210 mm round bloom casting is established by software ANSYS to study the effect of casting speed 1.3 - 1.5 m/rain, liquid overheating extent 15°-60° and secondary cooling water rate 0. 58 - 0. 78 L/kg during casting bloom heat transfer process on casting bloom surface temperature, bloom solidified shell thickness and solidification end position. Results show that controlling stable lower casting speed, low liquid overheating extent and weaker secondary cooling water rate are available to avoid the formation of crack of steel 37Mn5 Ф210 mm bloom and improve the metallurgy quality of bloom.
出处
《特殊钢》
北大核心
2014年第1期19-22,共4页
Special Steel
关键词
Ф210mm圆坯连铸
37Mn5钢
传热模型
拉速
钢水过热度
二冷比水量
裂纹
冶金质量
Ф210 mm Round Bloom Casting, Steel 37Mn5, Heat Transfer Model, Casting Speed, Liquid Over- heating Extent, Secondary Cooling Water Rate, Crack, Metallurgy Quality
