Continuous casting method for eliminating netted cracks of Ni-free 09CrCuSb steel casting blank
The invention relates to a continuous casting method for eliminating netted cracks of a Ni-free 09CrCuSb steel casting blank. The steel comprises the following chemical components in percentage by weight: 0.06%-0.10% of C, 0.20%-0.35% of Si, 0.45%-0.60% of Mn, less than or equal to 0.020% of P, less...
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| creator | JIANG SHUANGHAI DU CHENGJIAN WANG JUN SHI WEINING YUAN YUAN FANG YU WANG LIU XU JIYOU YANG BEI YE MINGZAI |
| description | The invention relates to a continuous casting method for eliminating netted cracks of a Ni-free 09CrCuSb steel casting blank. The steel comprises the following chemical components in percentage by weight: 0.06%-0.10% of C, 0.20%-0.35% of Si, 0.45%-0.60% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.80%-1.00% of Cr, 0.25%-0.35% of Cu and 0.04%-0.10% of Sb. The method comprises the key process steps that (1) when molten steel flows into a crystallizer from a tundish, the water volume of the crystallizer is controlled to be 158 t/h to 160 t/h, and the electromagnetic stirring parameters of the crystallizer are that the current is 450 A, and the frequency is 3 Hz; (2) when a casting blank continuously cast from the crystallizer enters a secondary cooling chamber, the secondary cooling specific water flow is 1.19-1.21; and (3) when the casting blank pulled out of the secondary cooling chamber enters a withdrawal and straightening machine, the blank temperature range of the casting |
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The steel comprises the following chemical components in percentage by weight: 0.06%-0.10% of C, 0.20%-0.35% of Si, 0.45%-0.60% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.80%-1.00% of Cr, 0.25%-0.35% of Cu and 0.04%-0.10% of Sb. The method comprises the key process steps that (1) when molten steel flows into a crystallizer from a tundish, the water volume of the crystallizer is controlled to be 158 t/h to 160 t/h, and the electromagnetic stirring parameters of the crystallizer are that the current is 450 A, and the frequency is 3 Hz; (2) when a casting blank continuously cast from the crystallizer enters a secondary cooling chamber, the secondary cooling specific water flow is 1.19-1.21; and (3) when the casting blank pulled out of the secondary cooling chamber enters a withdrawal and straightening machine, the blank temperature range of the casting</description><language>chi ; eng</language><subject>ALLOYS ; CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; PERFORMING OPERATIONS ; POWDER METALLURGY ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230120&DB=EPODOC&CC=CN&NR=115627421A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76304</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230120&DB=EPODOC&CC=CN&NR=115627421A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JIANG SHUANGHAI</creatorcontrib><creatorcontrib>DU CHENGJIAN</creatorcontrib><creatorcontrib>WANG JUN</creatorcontrib><creatorcontrib>SHI WEINING</creatorcontrib><creatorcontrib>YUAN YUAN</creatorcontrib><creatorcontrib>FANG YU</creatorcontrib><creatorcontrib>WANG LIU</creatorcontrib><creatorcontrib>XU JIYOU</creatorcontrib><creatorcontrib>YANG BEI</creatorcontrib><creatorcontrib>YE MINGZAI</creatorcontrib><title>Continuous casting method for eliminating netted cracks of Ni-free 09CrCuSb steel casting blank</title><description>The invention relates to a continuous casting method for eliminating netted cracks of a Ni-free 09CrCuSb steel casting blank. 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The steel comprises the following chemical components in percentage by weight: 0.06%-0.10% of C, 0.20%-0.35% of Si, 0.45%-0.60% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.80%-1.00% of Cr, 0.25%-0.35% of Cu and 0.04%-0.10% of Sb. The method comprises the key process steps that (1) when molten steel flows into a crystallizer from a tundish, the water volume of the crystallizer is controlled to be 158 t/h to 160 t/h, and the electromagnetic stirring parameters of the crystallizer are that the current is 450 A, and the frequency is 3 Hz; (2) when a casting blank continuously cast from the crystallizer enters a secondary cooling chamber, the secondary cooling specific water flow is 1.19-1.21; and (3) when the casting blank pulled out of the secondary cooling chamber enters a withdrawal and straightening machine, the blank temperature range of the casting</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Continuous casting method for eliminating netted cracks of Ni-free 09CrCuSb steel casting blank |
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