HIGH-STRENGTH MALLEABLE GRAPHITE CAST IRON AND ITS PRODUCTION
PURPOSE:To provide excellent fatigue strength and pitting resistance, by forming the internal part of a malleable graphite cast iron structure in which graphite is precipitated in a matrix composed principally of bainite phase and also by forming the surface layer of a structure composed mainly of b...
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| creator | SUGIMOTO SHIGETOSHI MIZUNO SHINYA |
| description | PURPOSE:To provide excellent fatigue strength and pitting resistance, by forming the internal part of a malleable graphite cast iron structure in which graphite is precipitated in a matrix composed principally of bainite phase and also by forming the surface layer of a structure composed mainly of bainite phase free from graphite and graphite escape holes. CONSTITUTION:At the time of manufacturing high-strength malleable cast iron by applying austempering treatment combining austenitizing treatment with isothermal transformation treatment to white-iron castings, austenitizing treatment is carried out in a decarburizing atmosphere. In this way, the high-strength malleable graphite cast iron whose internal part has a malleable graphite cast iron structure in which graphite is precipitated in the matrix composed mainly of bainite phase and whose surface layer has a structure composed principally of bainite phase free from graphite and graphite escape holes can be obtained. |
| format | Patent |
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CONSTITUTION:At the time of manufacturing high-strength malleable cast iron by applying austempering treatment combining austenitizing treatment with isothermal transformation treatment to white-iron castings, austenitizing treatment is carried out in a decarburizing atmosphere. In this way, the high-strength malleable graphite cast iron whose internal part has a malleable graphite cast iron structure in which graphite is precipitated in the matrix composed mainly of bainite phase and whose surface layer has a structure composed principally of bainite phase free from graphite and graphite escape holes can be obtained.</description><language>eng</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>1987</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=19871116&DB=EPODOC&CC=JP&NR=S62263949A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19871116&DB=EPODOC&CC=JP&NR=S62263949A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SUGIMOTO SHIGETOSHI</creatorcontrib><creatorcontrib>MIZUNO SHINYA</creatorcontrib><title>HIGH-STRENGTH MALLEABLE GRAPHITE CAST IRON AND ITS PRODUCTION</title><description>PURPOSE:To provide excellent fatigue strength and pitting resistance, by forming the internal part of a malleable graphite cast iron structure in which graphite is precipitated in a matrix composed principally of bainite phase and also by forming the surface layer of a structure composed mainly of bainite phase free from graphite and graphite escape holes. CONSTITUTION:At the time of manufacturing high-strength malleable cast iron by applying austempering treatment combining austenitizing treatment with isothermal transformation treatment to white-iron castings, austenitizing treatment is carried out in a decarburizing atmosphere. In this way, the high-strength malleable graphite cast iron whose internal part has a malleable graphite cast iron structure in which graphite is precipitated in the matrix composed mainly of bainite phase and whose surface layer has a structure composed principally of bainite phase free from graphite and graphite escape holes can be obtained.</description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1987</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLD18HT30A0OCXL1cw_xUPB19PFxdXTycVVwD3IM8PAMcVVwdgwOUfAM8vdTcPRzUfAMCVYICPJ3CXUO8fT342FgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BwWZGRmbGliaWjsbEqAEAL64qKg</recordid><startdate>19871116</startdate><enddate>19871116</enddate><creator>SUGIMOTO SHIGETOSHI</creator><creator>MIZUNO SHINYA</creator><scope>EVB</scope></search><sort><creationdate>19871116</creationdate><title>HIGH-STRENGTH MALLEABLE GRAPHITE CAST IRON AND ITS PRODUCTION</title><author>SUGIMOTO SHIGETOSHI ; MIZUNO SHINYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS62263949A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1987</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>SUGIMOTO SHIGETOSHI</creatorcontrib><creatorcontrib>MIZUNO SHINYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SUGIMOTO SHIGETOSHI</au><au>MIZUNO SHINYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>HIGH-STRENGTH MALLEABLE GRAPHITE CAST IRON AND ITS PRODUCTION</title><date>1987-11-16</date><risdate>1987</risdate><abstract>PURPOSE:To provide excellent fatigue strength and pitting resistance, by forming the internal part of a malleable graphite cast iron structure in which graphite is precipitated in a matrix composed principally of bainite phase and also by forming the surface layer of a structure composed mainly of bainite phase free from graphite and graphite escape holes. CONSTITUTION:At the time of manufacturing high-strength malleable cast iron by applying austempering treatment combining austenitizing treatment with isothermal transformation treatment to white-iron castings, austenitizing treatment is carried out in a decarburizing atmosphere. In this way, the high-strength malleable graphite cast iron whose internal part has a malleable graphite cast iron structure in which graphite is precipitated in the matrix composed mainly of bainite phase and whose surface layer has a structure composed principally of bainite phase free from graphite and graphite escape holes can be obtained.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | HIGH-STRENGTH MALLEABLE GRAPHITE CAST IRON AND ITS PRODUCTION |
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