CASTABLE REFRACTORY FOR IMMERSION LANCE
PROBLEM TO BE SOLVED: To suppress oversintering of a structure, to improve a spalling resistance and to remarkably improve a service life of an immersion lance by blending CaO, fumed silica and alumina superfine powder to an Al2 O3 -SiO2 material low cement castable using an alumina cement as a bind...
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| creator | WASHIO HARUSHICHI UEMOTO HIDEO KATO MASATAKA KUROKI TOMOHITO |
| description | PROBLEM TO BE SOLVED: To suppress oversintering of a structure, to improve a spalling resistance and to remarkably improve a service life of an immersion lance by blending CaO, fumed silica and alumina superfine powder to an Al2 O3 -SiO2 material low cement castable using an alumina cement as a binding agent. SOLUTION: A low cement castable is composed of 60wt.% Al2 O3 and 40wt.% SiO2 . 0.4-0.8wt.% CaO, |
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SOLUTION: A low cement castable is composed of 60wt.% Al2 O3 and 40wt.% SiO2 . 0.4-0.8wt.% CaO, <=3wt.% fumed silica having 0.1μm average grain size and 0.5-5wt.% alumina superfine powder having 2.5μm average grain size are added to the above castable. A total content of the silica and the alumina having <=10μm grain size is <=5wt.%. A blending example is that 2wt.% alumina cement having 28wt.% CaO content, 2wt.% fumed silica and 2wt.% alumina superfine powder are blended to the Al2 O3 -SiO2 low cement castable whose basic formulation is 40wt.% chamotte, 30wt.% alumina and 30wt.% alumina fine powder.</description><edition>6</edition><language>eng</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; LIME, MAGNESIA ; METALLURGY ; METALLURGY OF IRON ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; REFRACTORIES ; SLAG ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS ; TREATMENT OF NATURAL STONE</subject><creationdate>1997</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=19970520&DB=EPODOC&CC=JP&NR=H09132466A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25544,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970520&DB=EPODOC&CC=JP&NR=H09132466A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WASHIO HARUSHICHI</creatorcontrib><creatorcontrib>UEMOTO HIDEO</creatorcontrib><creatorcontrib>KATO MASATAKA</creatorcontrib><creatorcontrib>KUROKI TOMOHITO</creatorcontrib><title>CASTABLE REFRACTORY FOR IMMERSION LANCE</title><description>PROBLEM TO BE SOLVED: To suppress oversintering of a structure, to improve a spalling resistance and to remarkably improve a service life of an immersion lance by blending CaO, fumed silica and alumina superfine powder to an Al2 O3 -SiO2 material low cement castable using an alumina cement as a binding agent. SOLUTION: A low cement castable is composed of 60wt.% Al2 O3 and 40wt.% SiO2 . 0.4-0.8wt.% CaO, <=3wt.% fumed silica having 0.1μm average grain size and 0.5-5wt.% alumina superfine powder having 2.5μm average grain size are added to the above castable. A total content of the silica and the alumina having <=10μm grain size is <=5wt.%. A blending example is that 2wt.% alumina cement having 28wt.% CaO content, 2wt.% fumed silica and 2wt.% alumina superfine powder are blended to the Al2 O3 -SiO2 low cement castable whose basic formulation is 40wt.% chamotte, 30wt.% alumina and 30wt.% alumina fine powder.</description><subject>ARTIFICIAL STONE</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>CONCRETE</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFB3dgwOcXTycVUIcnULcnQO8Q-KVHDzD1Lw9PV1DQr29PdT8HH0c3blYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxXgEeBpaGxkYmZmaOxsSoAQDrJyQL</recordid><startdate>19970520</startdate><enddate>19970520</enddate><creator>WASHIO HARUSHICHI</creator><creator>UEMOTO HIDEO</creator><creator>KATO MASATAKA</creator><creator>KUROKI TOMOHITO</creator><scope>EVB</scope></search><sort><creationdate>19970520</creationdate><title>CASTABLE REFRACTORY FOR IMMERSION LANCE</title><author>WASHIO HARUSHICHI ; UEMOTO HIDEO ; KATO MASATAKA ; KUROKI TOMOHITO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH09132466A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</creationdate><topic>ARTIFICIAL STONE</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>CONCRETE</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>WASHIO HARUSHICHI</creatorcontrib><creatorcontrib>UEMOTO HIDEO</creatorcontrib><creatorcontrib>KATO MASATAKA</creatorcontrib><creatorcontrib>KUROKI TOMOHITO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WASHIO HARUSHICHI</au><au>UEMOTO HIDEO</au><au>KATO MASATAKA</au><au>KUROKI TOMOHITO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CASTABLE REFRACTORY FOR IMMERSION LANCE</title><date>1997-05-20</date><risdate>1997</risdate><abstract>PROBLEM TO BE SOLVED: To suppress oversintering of a structure, to improve a spalling resistance and to remarkably improve a service life of an immersion lance by blending CaO, fumed silica and alumina superfine powder to an Al2 O3 -SiO2 material low cement castable using an alumina cement as a binding agent. SOLUTION: A low cement castable is composed of 60wt.% Al2 O3 and 40wt.% SiO2 . 0.4-0.8wt.% CaO, <=3wt.% fumed silica having 0.1μm average grain size and 0.5-5wt.% alumina superfine powder having 2.5μm average grain size are added to the above castable. A total content of the silica and the alumina having <=10μm grain size is <=5wt.%. A blending example is that 2wt.% alumina cement having 28wt.% CaO content, 2wt.% fumed silica and 2wt.% alumina superfine powder are blended to the Al2 O3 -SiO2 low cement castable whose basic formulation is 40wt.% chamotte, 30wt.% alumina and 30wt.% alumina fine powder.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL REFRACTORIES SLAG TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF NATURAL STONE |
| title | CASTABLE REFRACTORY FOR IMMERSION LANCE |
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