Iron-based sintered alloy material for valve seat
An iron-based sintered alloy material for a valve seat having improved wear resistance and reduced opposite aggressibility to a mating valve. The iron-based sintered alloy material contains 10% to 20% by area of first hard particles and 15% to 35% by area of second hard particles dispersed in a base...
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| creator | SATO KENICHI OKITA TOMOKI TAKAHASHI TERUO KAKIUCHI ARATA TAKEHANA MASAHIRO |
| description | An iron-based sintered alloy material for a valve seat having improved wear resistance and reduced opposite aggressibility to a mating valve. The iron-based sintered alloy material contains 10% to 20% by area of first hard particles and 15% to 35% by area of second hard particles dispersed in a base matrix phase, the first and the second hard particles accounting for 25% to 55% by area in total. The first hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 mum and a hardness of at least 500HV0.1 and less than 800HV0.1. The second hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 mum and a hardness of at least 800HV0.1 and less than 1100HV0.1. Solid lubricant particles may also be dispersed in the base matrix phase. |
| format | Patent |
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The iron-based sintered alloy material contains 10% to 20% by area of first hard particles and 15% to 35% by area of second hard particles dispersed in a base matrix phase, the first and the second hard particles accounting for 25% to 55% by area in total. The first hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 mum and a hardness of at least 500HV0.1 and less than 800HV0.1. The second hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 mum and a hardness of at least 800HV0.1 and less than 1100HV0.1. Solid lubricant particles may also be dispersed in the base matrix phase.</description><edition>7</edition><language>eng</language><subject>ALLOYS ; BLASTING ; CASTING ; CHEMISTRY ; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ; ENGINE PLANTS IN GENERAL ; FERROUS OR NON-FERROUS ALLOYS ; HEATING ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MAKING METALLIC POWDER ; MANUFACTURE OF ARTICLES FROM METALLIC POWDER ; MECHANICAL ENGINEERING ; METALLURGY ; PERFORMING OPERATIONS ; POWDER METALLURGY ; STEAM ENGINES ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WEAPONS ; WORKING METALLIC POWDER</subject><creationdate>2005</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=20050908&DB=EPODOC&CC=US&NR=2005193861A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050908&DB=EPODOC&CC=US&NR=2005193861A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SATO KENICHI</creatorcontrib><creatorcontrib>OKITA TOMOKI</creatorcontrib><creatorcontrib>TAKAHASHI TERUO</creatorcontrib><creatorcontrib>KAKIUCHI ARATA</creatorcontrib><creatorcontrib>TAKEHANA MASAHIRO</creatorcontrib><title>Iron-based sintered alloy material for valve seat</title><description>An iron-based sintered alloy material for a valve seat having improved wear resistance and reduced opposite aggressibility to a mating valve. The iron-based sintered alloy material contains 10% to 20% by area of first hard particles and 15% to 35% by area of second hard particles dispersed in a base matrix phase, the first and the second hard particles accounting for 25% to 55% by area in total. The first hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 mum and a hardness of at least 500HV0.1 and less than 800HV0.1. The second hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 mum and a hardness of at least 800HV0.1 and less than 1100HV0.1. Solid lubricant particles may also be dispersed in the base matrix phase.</description><subject>ALLOYS</subject><subject>BLASTING</subject><subject>CASTING</subject><subject>CHEMISTRY</subject><subject>CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MAKING METALLIC POWDER</subject><subject>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>STEAM ENGINES</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><subject>WEAPONS</subject><subject>WORKING METALLIC POWDER</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2005</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDD0LMrP001KLE5NUSjOzCtJLQIyEnNy8isVchOBvMzEHIW0_CKFssScslSF4tTEEh4G1rTEnOJUXijNzaDs5hri7KGbWpAfn1pckJicmpdaEh8abGRgYGpoaWxhZuhoaEycKgAwgix2</recordid><startdate>20050908</startdate><enddate>20050908</enddate><creator>SATO KENICHI</creator><creator>OKITA TOMOKI</creator><creator>TAKAHASHI TERUO</creator><creator>KAKIUCHI ARATA</creator><creator>TAKEHANA MASAHIRO</creator><scope>EVB</scope></search><sort><creationdate>20050908</creationdate><title>Iron-based sintered alloy material for valve seat</title><author>SATO KENICHI ; OKITA TOMOKI ; TAKAHASHI TERUO ; KAKIUCHI ARATA ; TAKEHANA MASAHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2005193861A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2005</creationdate><topic>ALLOYS</topic><topic>BLASTING</topic><topic>CASTING</topic><topic>CHEMISTRY</topic><topic>CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MAKING METALLIC POWDER</topic><topic>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>STEAM ENGINES</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><topic>WEAPONS</topic><topic>WORKING METALLIC POWDER</topic><toplevel>online_resources</toplevel><creatorcontrib>SATO KENICHI</creatorcontrib><creatorcontrib>OKITA TOMOKI</creatorcontrib><creatorcontrib>TAKAHASHI TERUO</creatorcontrib><creatorcontrib>KAKIUCHI ARATA</creatorcontrib><creatorcontrib>TAKEHANA MASAHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SATO KENICHI</au><au>OKITA TOMOKI</au><au>TAKAHASHI TERUO</au><au>KAKIUCHI ARATA</au><au>TAKEHANA MASAHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Iron-based sintered alloy material for valve seat</title><date>2005-09-08</date><risdate>2005</risdate><abstract>An iron-based sintered alloy material for a valve seat having improved wear resistance and reduced opposite aggressibility to a mating valve. The iron-based sintered alloy material contains 10% to 20% by area of first hard particles and 15% to 35% by area of second hard particles dispersed in a base matrix phase, the first and the second hard particles accounting for 25% to 55% by area in total. The first hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 mum and a hardness of at least 500HV0.1 and less than 800HV0.1. The second hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 mum and a hardness of at least 800HV0.1 and less than 1100HV0.1. Solid lubricant particles may also be dispersed in the base matrix phase.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| recordid | cdi_epo_espacenet_US2005193861A1 |
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| subjects | ALLOYS BLASTING CASTING CHEMISTRY CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL ENGINEERING METALLURGY PERFORMING OPERATIONS POWDER METALLURGY STEAM ENGINES TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS WORKING METALLIC POWDER |
| title | Iron-based sintered alloy material for valve seat |
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