Changes in Hydrogen Content During Steelmaking

Archives of Metallurgy and Materials

M. Knap¹  J. Lamut¹  K. Vrbek²  M. Marolt² 

[1] DEPARTMENT OF MATERIALS AND METALLURGY, FACULTY OF NATURAL SCIENCES AND ENGINEERING, UNIVERSITY OF LJUBLJANA, SLOVENIA;ŠTORE STEEL, STORE, SLOVENIA

关键词: Keywords: hydrogen content;    pin tubes;    tundish;    deoxidation;   

DOI  :  10.1515/amm-2015-0047

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

Štore Steel produces steel grades for spring, forging and engineering industry applications. Steelmaking technology consists of scrap melting in Electric Arc Furnace (EAF), secondary metallurgy in Ladle Furnace (LF) and continuous casting of billets (CC). Hydrogen content during steelmaking of various steel grades and steelmaking technologies was measured. Samples of steel melt from EAF, LF and CC were collected and investigated. Sampling from Electric Arc Furnace and Ladle Furnace was carried out using vacuum pin tubes. Regular measurements of hydrogen content in steel melt were made using Hydris device. Hydrogen content results measured in tundish by Hydris device were compared with results from pin tube samples. Based on the measurement results it was established that hydrogen content during steelmaking increases. The highest values were determined in tundish during casting. Factors that influence the hydrogen content in liquid steel the most were steelmaking technology and alloying elements.

【 授权许可】

Unknown