COOLING METHOD OF LANCE FOR STIRRING MOLTEN METAL
PURPOSE:To extend the service life of a lance for stirring a molten metal used for stirring and refining of the molten metal and to reduce the cost ratio thereof by running water into a metallic pipe provided at the center of the lance after the treatment thereby cooling the lance. CONSTITUTION:A la...
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| creator | TAKAHASHI TATSUTO KATOU KAZUYOSHI KOBAYASHI MOTONOBU MATSUDA YASUHIRO SHIRATANI YUUSUKE KOMATSU YOSHIMI KITAMURA MINORU USUI TSUTOMU |
| description | PURPOSE:To extend the service life of a lance for stirring a molten metal used for stirring and refining of the molten metal and to reduce the cost ratio thereof by running water into a metallic pipe provided at the center of the lance after the treatment thereby cooling the lance. CONSTITUTION:A lance 3 for stirring a molten normal formed by covering a metallic pipe 7 having a gas passage hole 7' with refractories 8 is immersed in the molten iron 4 and slag 4 in a ladle 1, and gas and flux are blown to generate gas bubbling 6, whereby the molten iron 4 is stirred and refined. Said lance is removed from the ladle 1 after the treatment and water is run in the pipe 7 to cool the lance, by which the difference in thermal expansion between the pipe 7 and the refractories 8 is decreased and the generation of the crack and stripping in the refractories 8 and the bend, etc. of the pipe 7 is prevented. It is preferable to prevent the decrease in the life owing to wetting of the refractories 8 by attaching a water recovering device consisting of a pipeline 10 with a suction cup to the hole 7' in the lower part of the pipe 7 and recovering thoroughly the cooling water fed into the pipe 7 from the upper part thereof. |
| format | Patent |
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CONSTITUTION:A lance 3 for stirring a molten normal formed by covering a metallic pipe 7 having a gas passage hole 7' with refractories 8 is immersed in the molten iron 4 and slag 4 in a ladle 1, and gas and flux are blown to generate gas bubbling 6, whereby the molten iron 4 is stirred and refined. Said lance is removed from the ladle 1 after the treatment and water is run in the pipe 7 to cool the lance, by which the difference in thermal expansion between the pipe 7 and the refractories 8 is decreased and the generation of the crack and stripping in the refractories 8 and the bend, etc. of the pipe 7 is prevented. It is preferable to prevent the decrease in the life owing to wetting of the refractories 8 by attaching a water recovering device consisting of a pipeline 10 with a suction cup to the hole 7' in the lower part of the pipe 7 and recovering thoroughly the cooling water fed into the pipe 7 from the upper part thereof.</description><language>eng</language><subject>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</subject><creationdate>1984</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=19840821&DB=EPODOC&CC=JP&NR=S59145722A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19840821&DB=EPODOC&CC=JP&NR=S59145722A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKAHASHI TATSUTO</creatorcontrib><creatorcontrib>KATOU KAZUYOSHI</creatorcontrib><creatorcontrib>KOBAYASHI MOTONOBU</creatorcontrib><creatorcontrib>MATSUDA YASUHIRO</creatorcontrib><creatorcontrib>SHIRATANI YUUSUKE</creatorcontrib><creatorcontrib>KOMATSU YOSHIMI</creatorcontrib><creatorcontrib>KITAMURA MINORU</creatorcontrib><creatorcontrib>USUI TSUTOMU</creatorcontrib><title>COOLING METHOD OF LANCE FOR STIRRING MOLTEN METAL</title><description>PURPOSE:To extend the service life of a lance for stirring a molten metal used for stirring and refining of the molten metal and to reduce the cost ratio thereof by running water into a metallic pipe provided at the center of the lance after the treatment thereby cooling the lance. 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It is preferable to prevent the decrease in the life owing to wetting of the refractories 8 by attaching a water recovering device consisting of a pipeline 10 with a suction cup to the hole 7' in the lower part of the pipe 7 and recovering thoroughly the cooling water fed into the pipe 7 from the upper part thereof.</description><subject>CASTING</subject><subject>CASTING OF METALS</subject><subject>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</subject><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>TRANSPORTING</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1984</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDB09vf38fRzV_B1DfHwd1Hwd1PwcfRzdlVw8w9SCA7xDAoCS_r7hLj6gdQ4-vAwsKYl5hSn8kJpbgZFN9cQZw_d1IL8-NTigsTk1LzUknivgGBTS0MTU3MjI0djYtQAAEVNJrU</recordid><startdate>19840821</startdate><enddate>19840821</enddate><creator>TAKAHASHI TATSUTO</creator><creator>KATOU KAZUYOSHI</creator><creator>KOBAYASHI MOTONOBU</creator><creator>MATSUDA YASUHIRO</creator><creator>SHIRATANI YUUSUKE</creator><creator>KOMATSU YOSHIMI</creator><creator>KITAMURA MINORU</creator><creator>USUI TSUTOMU</creator><scope>EVB</scope></search><sort><creationdate>19840821</creationdate><title>COOLING METHOD OF LANCE FOR STIRRING MOLTEN METAL</title><author>TAKAHASHI TATSUTO ; KATOU KAZUYOSHI ; KOBAYASHI MOTONOBU ; MATSUDA YASUHIRO ; SHIRATANI YUUSUKE ; KOMATSU YOSHIMI ; KITAMURA MINORU ; USUI TSUTOMU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS59145722A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1984</creationdate><topic>CASTING</topic><topic>CASTING OF METALS</topic><topic>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</topic><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</topic><topic>TRANSPORTING</topic><topic>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKAHASHI TATSUTO</creatorcontrib><creatorcontrib>KATOU KAZUYOSHI</creatorcontrib><creatorcontrib>KOBAYASHI MOTONOBU</creatorcontrib><creatorcontrib>MATSUDA YASUHIRO</creatorcontrib><creatorcontrib>SHIRATANI YUUSUKE</creatorcontrib><creatorcontrib>KOMATSU YOSHIMI</creatorcontrib><creatorcontrib>KITAMURA MINORU</creatorcontrib><creatorcontrib>USUI TSUTOMU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKAHASHI TATSUTO</au><au>KATOU KAZUYOSHI</au><au>KOBAYASHI MOTONOBU</au><au>MATSUDA YASUHIRO</au><au>SHIRATANI YUUSUKE</au><au>KOMATSU YOSHIMI</au><au>KITAMURA MINORU</au><au>USUI TSUTOMU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>COOLING METHOD OF LANCE FOR STIRRING MOLTEN METAL</title><date>1984-08-21</date><risdate>1984</risdate><abstract>PURPOSE:To extend the service life of a lance for stirring a molten metal used for stirring and refining of the molten metal and to reduce the cost ratio thereof by running water into a metallic pipe provided at the center of the lance after the treatment thereby cooling the lance. CONSTITUTION:A lance 3 for stirring a molten normal formed by covering a metallic pipe 7 having a gas passage hole 7' with refractories 8 is immersed in the molten iron 4 and slag 4 in a ladle 1, and gas and flux are blown to generate gas bubbling 6, whereby the molten iron 4 is stirred and refined. Said lance is removed from the ladle 1 after the treatment and water is run in the pipe 7 to cool the lance, by which the difference in thermal expansion between the pipe 7 and the refractories 8 is decreased and the generation of the crack and stripping in the refractories 8 and the bend, etc. of the pipe 7 is prevented. It is preferable to prevent the decrease in the life owing to wetting of the refractories 8 by attaching a water recovering device consisting of a pipeline 10 with a suction cup to the hole 7' in the lower part of the pipe 7 and recovering thoroughly the cooling water fed into the pipe 7 from the upper part thereof.</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 | COOLING METHOD OF LANCE FOR STIRRING MOLTEN METAL |
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