Preparation process of steel for crown cap cold forming
The invention provides a preparation process of steel for crown cap cold forming. The preparation process includes the procedures of LF refining, specifically, high-aluminum refining slag is added after submerged arc operation, the amount of the slag added to molten steel per ton is 4-6 kg, the melt...
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| creator | WANG LEI WANG CHANGBO LI XING FENG YINGLONG GAO JI GUAN XINHUA HAN GENGWEI JIANG XIANXUN SUN ZHIMING LI XIAO ZHAO YU LI YINGSHUO |
| description | The invention provides a preparation process of steel for crown cap cold forming. The preparation process includes the procedures of LF refining, specifically, high-aluminum refining slag is added after submerged arc operation, the amount of the slag added to molten steel per ton is 4-6 kg, the melting point is controlled to be 1500-1700 DEG C, and constituents of the high-aluminum refining slag are as follows: 49% or over of CaO,1.5% or less of MgO, 1.5% or less of SiO2, 40% or over of AL2O3 and 0.5% or less of moisture; heating, specifically, the heating temperature is 1145-1175 DEG C; rolling, the final rolling temperature is 880-900 DEG C; and laminar cooling, specifically, the coiling temperature is 605-635 DEG C, and the up-down specific water flow is 0.75:1. According to the preparation process of steel for crown cap cold forming, many process procedures are optimized, the value r and the value n are increased, the sum of grades of nonmetallic inclusions of molten steel is averagely decreased by about |
| format | Patent |
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The preparation process includes the procedures of LF refining, specifically, high-aluminum refining slag is added after submerged arc operation, the amount of the slag added to molten steel per ton is 4-6 kg, the melting point is controlled to be 1500-1700 DEG C, and constituents of the high-aluminum refining slag are as follows: 49% or over of CaO,1.5% or less of MgO, 1.5% or less of SiO2, 40% or over of AL2O3 and 0.5% or less of moisture; heating, specifically, the heating temperature is 1145-1175 DEG C; rolling, the final rolling temperature is 880-900 DEG C; and laminar cooling, specifically, the coiling temperature is 605-635 DEG C, and the up-down specific water flow is 0.75:1. 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The preparation process includes the procedures of LF refining, specifically, high-aluminum refining slag is added after submerged arc operation, the amount of the slag added to molten steel per ton is 4-6 kg, the melting point is controlled to be 1500-1700 DEG C, and constituents of the high-aluminum refining slag are as follows: 49% or over of CaO,1.5% or less of MgO, 1.5% or less of SiO2, 40% or over of AL2O3 and 0.5% or less of moisture; heating, specifically, the heating temperature is 1145-1175 DEG C; rolling, the final rolling temperature is 880-900 DEG C; and laminar cooling, specifically, the coiling temperature is 605-635 DEG C, and the up-down specific water flow is 0.75:1. 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The preparation process includes the procedures of LF refining, specifically, high-aluminum refining slag is added after submerged arc operation, the amount of the slag added to molten steel per ton is 4-6 kg, the melting point is controlled to be 1500-1700 DEG C, and constituents of the high-aluminum refining slag are as follows: 49% or over of CaO,1.5% or less of MgO, 1.5% or less of SiO2, 40% or over of AL2O3 and 0.5% or less of moisture; heating, specifically, the heating temperature is 1145-1175 DEG C; rolling, the final rolling temperature is 880-900 DEG C; and laminar cooling, specifically, the coiling temperature is 605-635 DEG C, and the up-down specific water flow is 0.75:1. According to the preparation process of steel for crown cap cold forming, many process procedures are optimized, the value r and the value n are increased, the sum of grades of nonmetallic inclusions of molten steel is averagely decreased by about</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Preparation process of steel for crown cap cold forming |
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