Method for improving pourability of low-carbon aluminum killed steel molten steel
The invention discloses a method for improving the pourability of low-carbon aluminum killed steel molten steel, and relates to the technical field of smelting. According to the method for improving the pourability of the low-carbon aluminum killed steel molten steel, a vacuum refining agent added t...
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| creator | ZHANG LIXIN SHEN GUANGWEN SHU HONGFU HUANG CHUANGEN FAN HAINING XU XIAOWEI HU XIAOGUANG MAO MING WANG QUAN LIU TIANQUAN XIONG HUABAO LI BAOQING |
| description | The invention discloses a method for improving the pourability of low-carbon aluminum killed steel molten steel, and relates to the technical field of smelting. According to the method for improving the pourability of the low-carbon aluminum killed steel molten steel, a vacuum refining agent added to RH is of a pre-melting type, the action mechanism of the vacuum refining agent on inclusions is mainly an "adsorption+isolation layer" effect, the vacuum refining agent is prepared from the chemical components in percentage by mass: 38%-48% of CaO, 20%-30% of Al2O3, less than or equal to 5% of SiO2, 18%-22% of metal aluminum, less than or equal to 0.15% of T.C and the CaO/Al2O3 ratio is 1.60-1.90, has better adsorption capacity of inclusion, the particle size is 3-30mm, the melting point is about 1350 DEG C, the content of the pre-melted slag accounts for 50%-60%, and the main phase is about 57% of (CaO)12(Al2O3)7. According to the method for improving the pourability of the low-carbon aluminum killed steel molte |
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According to the method for improving the pourability of the low-carbon aluminum killed steel molten steel, a vacuum refining agent added to RH is of a pre-melting type, the action mechanism of the vacuum refining agent on inclusions is mainly an "adsorption+isolation layer" effect, the vacuum refining agent is prepared from the chemical components in percentage by mass: 38%-48% of CaO, 20%-30% of Al2O3, less than or equal to 5% of SiO2, 18%-22% of metal aluminum, less than or equal to 0.15% of T.C and the CaO/Al2O3 ratio is 1.60-1.90, has better adsorption capacity of inclusion, the particle size is 3-30mm, the melting point is about 1350 DEG C, the content of the pre-melted slag accounts for 50%-60%, and the main phase is about 57% of (CaO)12(Al2O3)7. 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According to the method for improving the pourability of the low-carbon aluminum killed steel molten steel, a vacuum refining agent added to RH is of a pre-melting type, the action mechanism of the vacuum refining agent on inclusions is mainly an "adsorption+isolation layer" effect, the vacuum refining agent is prepared from the chemical components in percentage by mass: 38%-48% of CaO, 20%-30% of Al2O3, less than or equal to 5% of SiO2, 18%-22% of metal aluminum, less than or equal to 0.15% of T.C and the CaO/Al2O3 ratio is 1.60-1.90, has better adsorption capacity of inclusion, the particle size is 3-30mm, the melting point is about 1350 DEG C, the content of the pre-melted slag accounts for 50%-60%, and the main phase is about 57% of (CaO)12(Al2O3)7. 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According to the method for improving the pourability of the low-carbon aluminum killed steel molten steel, a vacuum refining agent added to RH is of a pre-melting type, the action mechanism of the vacuum refining agent on inclusions is mainly an "adsorption+isolation layer" effect, the vacuum refining agent is prepared from the chemical components in percentage by mass: 38%-48% of CaO, 20%-30% of Al2O3, less than or equal to 5% of SiO2, 18%-22% of metal aluminum, less than or equal to 0.15% of T.C and the CaO/Al2O3 ratio is 1.60-1.90, has better adsorption capacity of inclusion, the particle size is 3-30mm, the melting point is about 1350 DEG C, the content of the pre-melted slag accounts for 50%-60%, and the main phase is about 57% of (CaO)12(Al2O3)7. According to the method for improving the pourability of the low-carbon aluminum killed steel molte</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS |
| title | Method for improving pourability of low-carbon aluminum killed steel molten steel |
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