Production method of large-wall-thickness pipeline steel capable of improving carbon dioxide corrosion resistance and obdurability
The invention relates to the technical field of metallurgy, in particular to a large-wall-thickness pipeline steel production method capable of improving carbon dioxide corrosion resistance and obdurability, which comprises the following specific measures: (1) controlling a bottom blowing mode and e...
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| creator | WANG RUNGANG CHEN YAO HAN QIBIAO HAN LIQIANG FANG ZHENYE CONJAT LIU XIZHANG WANG XING HU SHU'E DU HAITAO WANG PENGFEI ZHU SHIPENG CAI MINGYU MA QIANG HAO YANSEN |
| description | The invention relates to the technical field of metallurgy, in particular to a large-wall-thickness pipeline steel production method capable of improving carbon dioxide corrosion resistance and obdurability, which comprises the following specific measures: (1) controlling a bottom blowing mode and end point requirements in a converter process; (2) the tapping time and the tapping hole replacement time are controlled in the tapping process; (3) CAS aluminum wire feeding is carried out, and CAS argon blowing time is controlled; (4) controlling the top slag adding amount, the heating time and the outbound mode in the LF refining process; (5) controlling wire feeding parameters, soft blowing time and RH requirements in the RH refining process; and (6) the precision requirement, the pulling speed fluctuation and the crystallizer liquid level fluctuation of continuous casting equipment are controlled in the continuous casting process, and a casting blank is obtained. Parameters of all procedures in the smelting and |
| format | Patent |
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(2) the tapping time and the tapping hole replacement time are controlled in the tapping process; (3) CAS aluminum wire feeding is carried out, and CAS argon blowing time is controlled; (4) controlling the top slag adding amount, the heating time and the outbound mode in the LF refining process; (5) controlling wire feeding parameters, soft blowing time and RH requirements in the RH refining process; and (6) the precision requirement, the pulling speed fluctuation and the crystallizer liquid level fluctuation of continuous casting equipment are controlled in the continuous casting process, and a casting blank is obtained. Parameters of all procedures in the smelting and</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS 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 TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Production method of large-wall-thickness pipeline steel capable of improving carbon dioxide corrosion resistance and obdurability |
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