SPHEROIDAL GRAPHITE CAST IRON MEMBER AND PROCESS FOR PRODUCING THE SAME
PROBLEM TO BE SOLVED: To provide spheroidal graphite cast iron in which a spheroidizing agent not containing rare-earth elements is used, and chilling at the thin thickness part can be restrained, and which has no internal defects.SOLUTION: In a ladle, the spheroidizing treatment is performed by con...
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| creator | SATO TAKASHI NISHIKAWA YUTAKA KITAHARA MASAKAZU IDEI HIROSHI NARITA HIDEKAZU TOKIYAMA TAKUYA BABA TSUKASA HORITANI TAKAO |
| description | PROBLEM TO BE SOLVED: To provide spheroidal graphite cast iron in which a spheroidizing agent not containing rare-earth elements is used, and chilling at the thin thickness part can be restrained, and which has no internal defects.SOLUTION: In a ladle, the spheroidizing treatment is performed by controlling the charging amount of the spheroidizing agent of an Fe-S-Mg-Ca based alloy which contains, by mass ratio, 3.0-6.0% Mg, 1.0-2.0% Ca, 0.5-3.5% Ba and ≤0.3% Al and which does not contain the rare-earth elements to 0.8-2.0%, by mass ratio, to molten iron, and also, an inoculation treatment is performed using an Fe-Si based inoculating agent, and thereafter, a melt-stream inoculation treatment is performed using an Fe-Si-Ca based inoculating agent to obtain the spheroidal graphite cast iron member composed of, by mass ratio, 3.0-4.5% C, 3.0-4.0% Si, 0.2-0.4% Mn, 0.006-0.020% S, 0.08-0.30% Cu, 0.020-0.040% Sn, 0.015-0.050% Mg, ≤0.03% Al, ≤0.01% Zn and the balance Fe with inevitable impurities, as the finish composition. |
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CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; METALLURGY OF IRON ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2013</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=20130708&DB=EPODOC&CC=JP&NR=2013133474A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130708&DB=EPODOC&CC=JP&NR=2013133474A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SATO TAKASHI</creatorcontrib><creatorcontrib>NISHIKAWA YUTAKA</creatorcontrib><creatorcontrib>KITAHARA MASAKAZU</creatorcontrib><creatorcontrib>IDEI HIROSHI</creatorcontrib><creatorcontrib>NARITA HIDEKAZU</creatorcontrib><creatorcontrib>TOKIYAMA TAKUYA</creatorcontrib><creatorcontrib>BABA TSUKASA</creatorcontrib><creatorcontrib>HORITANI TAKAO</creatorcontrib><title>SPHEROIDAL GRAPHITE CAST IRON MEMBER AND PROCESS FOR PRODUCING THE SAME</title><description>PROBLEM TO BE SOLVED: To provide spheroidal graphite cast iron in which a spheroidizing agent not containing rare-earth elements is used, and chilling at the thin thickness part can be restrained, and which has no internal defects.SOLUTION: In a ladle, the spheroidizing treatment is performed by controlling the charging amount of the spheroidizing agent of an Fe-S-Mg-Ca based alloy which contains, by mass ratio, 3.0-6.0% Mg, 1.0-2.0% Ca, 0.5-3.5% Ba and ≤0.3% Al and which does not contain the rare-earth elements to 0.8-2.0%, by mass ratio, to molten iron, and also, an inoculation treatment is performed using an Fe-Si based inoculating agent, and thereafter, a melt-stream inoculation treatment is performed using an Fe-Si-Ca based inoculating agent to obtain the spheroidal graphite cast iron member composed of, by mass ratio, 3.0-4.5% C, 3.0-4.0% Si, 0.2-0.4% Mn, 0.006-0.020% S, 0.08-0.30% Cu, 0.020-0.040% Sn, 0.015-0.050% Mg, ≤0.03% Al, ≤0.01% Zn and the balance Fe with inevitable impurities, as the finish composition.</description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAPDvBwDfL3dHH0UXAPcgzw8AxxVXB2DA5R8Azy91PwdfV1cg1ScPRzUQgI8nd2DQ5WcPMPArFdQp09_dwVQjxcFYIdfV15GFjTEnOKU3mhNDeDkptriLOHbmpBfnxqcUFicmpeakm8V4CRgaGxobGxibmJozFRigAYpCy_</recordid><startdate>20130708</startdate><enddate>20130708</enddate><creator>SATO TAKASHI</creator><creator>NISHIKAWA YUTAKA</creator><creator>KITAHARA MASAKAZU</creator><creator>IDEI HIROSHI</creator><creator>NARITA HIDEKAZU</creator><creator>TOKIYAMA TAKUYA</creator><creator>BABA TSUKASA</creator><creator>HORITANI TAKAO</creator><scope>EVB</scope></search><sort><creationdate>20130708</creationdate><title>SPHEROIDAL GRAPHITE CAST IRON MEMBER AND PROCESS FOR PRODUCING THE SAME</title><author>SATO TAKASHI ; 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| subjects | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | SPHEROIDAL GRAPHITE CAST IRON MEMBER AND PROCESS FOR PRODUCING THE SAME |
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