Practice of RH Multi-function top lance design and manufacture
LEI Yu-tian
REN Tong
CHEN Ya-wen
Abstract：Top lance is important equipment in RH refining.It has particularly very important role in ultra-low carbon steel smelting.From the perspective of the manufacturing process,the copper is selected as the lance head material according to the structure and characteristics of Laval top lance.Dissimilar metal welding process is developed and strict quality inspection is implemented,which finally obtained successful experience.It established solid foundation to achieve the top lance smelting technology and localization.
Keywords：RH refiningtop lanceLaval hole
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 74-78 )