The stainless steel of half ferrite item of production method and equipment passes through continuously casting molten metal

摘要

Half ferrite stainless steel bar manufacturing method includes carrying out continuous casting to molten steel, in a pair of of chill roll (2) and makes to withdraw band (3) below roller, is quenched for the sufficiently long time with quenching medium to avoid the formation of austenite. Device also requires the process. Band (3) is that county is cooling in 300-500 degrees seconds Celsius. It follows closely and leaves roller gap. Quenching medium can such as mixtae KNO3, NaNO2 and NaNO3 in (one) molten bath (6) one or more Pb, Sn and Zn or fused salt, the bottom and top part band (3) of central roll (2) are to impregnate; Or b liquefied inert gas these liquid are sprayed onto the lower section band roller on face top.