| Abstract: | Experiments were carried out on the carburisation, desulphurisation and temperature rise of the semi‐steel in a plasma induction furnace. Influences of many factors, such as power supply, structure and positioning of the plasma torch and bottom‐blown‐gas stirring, on heating efficiency and melt temperature distribution were studied. During carburisation of the semi‐steel, plasma heating could effectively control the melt temperature, consequently, the carbon mass content of semi‐steel increased from 1.92 to 4.58 % with the utilisation efficiency of carbon reached up to 61.57 %, and the desulphurisation ratio could be beyond 66.58 %. |
