首页>
外国专利>
LOWER NOZZLE FRAME OF A LADLE, FOR IMPROVING MECHANICAL PROPERTY, AND A MANUFACTURING METHOD THEREOF
LOWER NOZZLE FRAME OF A LADLE, FOR IMPROVING MECHANICAL PROPERTY, AND A MANUFACTURING METHOD THEREOF
展开▼
机译:钢包的下部喷嘴框架,用于改善机械性能及其制造方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE: A lower nozzle frame of a ladle, for improving mechanical property, and a manufacturing method thereof are provided to manufacture a lower nozzle frame which secures high strength and elongation by adding Mn, Si, Ni, Cr, Mo for the improvement of cold heading quality and hardening.;CONSTITUTION: A lower nozzle frame of a ladle comprises a main body member(5a) and a wing(5b) formed by casting. A lower nozzle frame is made of C 0.30-0.40wt%, Si 0.30-0.40wt%, Mn 0.40-0.70wt%, Ni 0.3-0.5wt%, Cr of 1.00-1.30wt% and Mo 0.40-0.60wt% and residue part Fe. The HRC hardness of the main body member is 40-45. The HRC hardness of the wing part is 50-55.;COPYRIGHT KIPO 2011
展开▼