| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.31 ( November 1994 ) Special Issue on 'Stainless Steel 'and ' Engineering and Construction' ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Recent Progress of Stainless Steelmaking Process at Kawasaki Steel Masanori Nishikoori, Hiroshi Nishikawa, Ken-ichi Sorimachi |
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Synopsis : A chromium ore smelting reduction process has been established for the production of stainless steel utilizing two K-BOPs (top and bottom blowing converters) at No.1 Steelmaking Shop of Chiba Works. This process is characterized by energy savings, increased flexibility in material selection, and high productivity. At the smelting reduction furnace, high-lance-height operation makes it possible to increase the use of chromium ore as a chromium source for stainless steel. Recently, Kawasaki Steel's KTB method, in which oxygen is blown onto the steel melt in the RH vacuum degassing vessel, has been applied to the decarburization of stainless steel, combining with the K-BOP smelting reduction method to form a highly efficient stainless steelmaking process. |
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