Wall electrode for direct current powered electric arc furnace
A wall electrode for a D.C. powered electric arc furnace for the processing of metals in a liquid state, especially steel. The electrode is constituted mainly (a) by a metallic bar (4) one of whose ends comes into contact with the metallic bath (6), while a portion (7) of its other end extends to th...
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| creator | MICHELET JACQUES MAURER GHISLAIN |
| description | A wall electrode for a D.C. powered electric arc furnace for the processing of metals in a liquid state, especially steel. The electrode is constituted mainly (a) by a metallic bar (4) one of whose ends comes into contact with the metallic bath (6), while a portion (7) of its other end extends to the exterior of the furnace; (b) by a sleeve (8) of thermally and electrically conductive material, energy-cooled by a flow of cooling fluid, surrounding the portion (7) of the other end of the bar at a distance therefrom; (c) by a nipple (9) of good electrically conductive material extending the aforementioned portion (7) of the other end of the bar; and (d) by a connection of the nipple and the sleeve to the same bar of an electrical supply. The invention takes into account the effects of differential expansion between the cold sleeve (8) and the alternately warm and cold bar (4), and permits a good thermal exchange and a good electrical contact between bar and sleeve to be maintained during repeated sequences of resmelting and resolidification of the bar. |
| format | Patent |
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The electrode is constituted mainly (a) by a metallic bar (4) one of whose ends comes into contact with the metallic bath (6), while a portion (7) of its other end extends to the exterior of the furnace; (b) by a sleeve (8) of thermally and electrically conductive material, energy-cooled by a flow of cooling fluid, surrounding the portion (7) of the other end of the bar at a distance therefrom; (c) by a nipple (9) of good electrically conductive material extending the aforementioned portion (7) of the other end of the bar; and (d) by a connection of the nipple and the sleeve to the same bar of an electrical supply. The invention takes into account the effects of differential expansion between the cold sleeve (8) and the alternately warm and cold bar (4), and permits a good thermal exchange and a good electrical contact between bar and sleeve to be maintained during repeated sequences of resmelting and resolidification of the bar.</description><language>eng</language><subject>BLASTING ; CHEMISTRY ; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE ; ELECTRIC HEATING ; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; FURNACES ; FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL ; HEATING ; KILNS ; LIGHTING ; MECHANICAL ENGINEERING ; METALLURGY ; METALLURGY OF IRON ; OPEN SINTERING OR LIKE APPARATUS ; OVENS ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; RETORTS ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS ; WEAPONS</subject><creationdate>1991</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=19910101&DB=EPODOC&CC=US&NR=4982411A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19910101&DB=EPODOC&CC=US&NR=4982411A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MICHELET; JACQUES</creatorcontrib><creatorcontrib>MAURER; GHISLAIN</creatorcontrib><title>Wall electrode for direct current powered electric arc furnace</title><description>A wall electrode for a D.C. powered electric arc furnace for the processing of metals in a liquid state, especially steel. The electrode is constituted mainly (a) by a metallic bar (4) one of whose ends comes into contact with the metallic bath (6), while a portion (7) of its other end extends to the exterior of the furnace; (b) by a sleeve (8) of thermally and electrically conductive material, energy-cooled by a flow of cooling fluid, surrounding the portion (7) of the other end of the bar at a distance therefrom; (c) by a nipple (9) of good electrically conductive material extending the aforementioned portion (7) of the other end of the bar; and (d) by a connection of the nipple and the sleeve to the same bar of an electrical supply. The invention takes into account the effects of differential expansion between the cold sleeve (8) and the alternately warm and cold bar (4), and permits a good thermal exchange and a good electrical contact between bar and sleeve to be maintained during repeated sequences of resmelting and resolidification of the bar.</description><subject>BLASTING</subject><subject>CHEMISTRY</subject><subject>DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE</subject><subject>ELECTRIC HEATING</subject><subject>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>FURNACES</subject><subject>FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL</subject><subject>HEATING</subject><subject>KILNS</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>OPEN SINTERING OR LIKE APPARATUS</subject><subject>OVENS</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>RETORTS</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1991</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLALT8zJUUjNSU0uKcpPSVVIyy9SSMksAnIVkkuLilLzShQK8stTi1JToIoykxUSi5IV0kqL8hKTU3kYWNMSc4pTeaE0N4O8m2uIs4duakF-fGpxAVBJXmpJfGiwiaWFkYmhoaMxYRUAonAv8A</recordid><startdate>19910101</startdate><enddate>19910101</enddate><creator>MICHELET; JACQUES</creator><creator>MAURER; GHISLAIN</creator><scope>EVB</scope></search><sort><creationdate>19910101</creationdate><title>Wall electrode for direct current powered electric arc furnace</title><author>MICHELET; JACQUES ; MAURER; GHISLAIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US4982411A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1991</creationdate><topic>BLASTING</topic><topic>CHEMISTRY</topic><topic>DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE</topic><topic>ELECTRIC HEATING</topic><topic>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>FURNACES</topic><topic>FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL</topic><topic>HEATING</topic><topic>KILNS</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>OPEN SINTERING OR LIKE APPARATUS</topic><topic>OVENS</topic><topic>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</topic><topic>RETORTS</topic><topic>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>MICHELET; JACQUES</creatorcontrib><creatorcontrib>MAURER; GHISLAIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MICHELET; JACQUES</au><au>MAURER; GHISLAIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Wall electrode for direct current powered electric arc furnace</title><date>1991-01-01</date><risdate>1991</risdate><abstract>A wall electrode for a D.C. powered electric arc furnace for the processing of metals in a liquid state, especially steel. The electrode is constituted mainly (a) by a metallic bar (4) one of whose ends comes into contact with the metallic bath (6), while a portion (7) of its other end extends to the exterior of the furnace; (b) by a sleeve (8) of thermally and electrically conductive material, energy-cooled by a flow of cooling fluid, surrounding the portion (7) of the other end of the bar at a distance therefrom; (c) by a nipple (9) of good electrically conductive material extending the aforementioned portion (7) of the other end of the bar; and (d) by a connection of the nipple and the sleeve to the same bar of an electrical supply. The invention takes into account the effects of differential expansion between the cold sleeve (8) and the alternately warm and cold bar (4), and permits a good thermal exchange and a good electrical contact between bar and sleeve to be maintained during repeated sequences of resmelting and resolidification of the bar.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CHEMISTRY DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OPEN SINTERING OR LIKE APPARATUS OVENS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS |
| title | Wall electrode for direct current powered electric arc furnace |
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