Welded rail
This welded rail according to one aspect of the present invention is provided with: a plurality of rail parts that each have a head section and a pillar section and each have a height h; and a welding joint part that joins the rail parts. The rail parts each have a predetermined chemical composition...
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| creator | MIYAZAKI, Teruhisa SAITA, Kenji UEDA, Masaharu TANAHASHI, Takuya |
| description | This welded rail according to one aspect of the present invention is provided with: a plurality of rail parts that each have a head section and a pillar section and each have a height h; and a welding joint part that joins the rail parts. The rail parts each have a predetermined chemical composition. The HAZ width of the welding joint part is not more than 60 mm. Regarding the welding joint part, in a region located from 0 to (2/3)×h from a head top part outline surface and within ±5 mm in a longitudinal direction from the welding center in a cross section passing through the center of the welding joint part and in parallel with a longitudinal direction and a vertical direction of the welded rail, the area percentage of martensite structures is 0.0006-0.1000%. In said region, the number of martensite structures having a particle size of 20-200 μm is 3-80. |
| format | Patent |
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The rail parts each have a predetermined chemical composition. The HAZ width of the welding joint part is not more than 60 mm. Regarding the welding joint part, in a region located from 0 to (2/3)×h from a head top part outline surface and within ±5 mm in a longitudinal direction from the welding center in a cross section passing through the center of the welding joint part and in parallel with a longitudinal direction and a vertical direction of the welded rail, the area percentage of martensite structures is 0.0006-0.1000%. In said region, the number of martensite structures having a particle size of 20-200 μm is 3-80.</description><language>eng</language><subject>ALLOYS ; CHEMISTRY ; CLADDING OR PLATING BY SOLDERING OR WELDING ; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; FERROUS OR NON-FERROUS ALLOYS ; FIXED CONSTRUCTIONS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; MACHINE TOOLS ; MACHINES FOR MAKING RAILWAYS OF ALL KINDS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; PERFORMING OPERATIONS ; PERMANENT WAY ; PERMANENT-WAY TOOLS ; SOLDERING OR UNSOLDERING ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>2024</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=20240919&DB=EPODOC&CC=AU&NR=2021352012B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240919&DB=EPODOC&CC=AU&NR=2021352012B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MIYAZAKI, Teruhisa</creatorcontrib><creatorcontrib>SAITA, Kenji</creatorcontrib><creatorcontrib>UEDA, Masaharu</creatorcontrib><creatorcontrib>TANAHASHI, Takuya</creatorcontrib><title>Welded rail</title><description>This welded rail according to one aspect of the present invention is provided with: a plurality of rail parts that each have a head section and a pillar section and each have a height h; and a welding joint part that joins the rail parts. The rail parts each have a predetermined chemical composition. The HAZ width of the welding joint part is not more than 60 mm. Regarding the welding joint part, in a region located from 0 to (2/3)×h from a head top part outline surface and within ±5 mm in a longitudinal direction from the welding center in a cross section passing through the center of the welding joint part and in parallel with a longitudinal direction and a vertical direction of the welded rail, the area percentage of martensite structures is 0.0006-0.1000%. In said region, the number of martensite structures having a particle size of 20-200 μm is 3-80.</description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>CLADDING OR PLATING BY SOLDERING OR WELDING</subject><subject>CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES</subject><subject>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>MACHINE TOOLS</subject><subject>MACHINES FOR MAKING RAILWAYS OF ALL KINDS</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>PERFORMING OPERATIONS</subject><subject>PERMANENT WAY</subject><subject>PERMANENT-WAY TOOLS</subject><subject>SOLDERING OR UNSOLDERING</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><subject>WELDING</subject><subject>WORKING BY LASER BEAM</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOAOT81JSU1RKErMzOFhYE1LzClO5YXS3Awqbq4hzh66qQX58anFBYnJqXmpJfGOoUYGRobGpkYGhkZOTkbGRCoDAHh4Hk0</recordid><startdate>20240919</startdate><enddate>20240919</enddate><creator>MIYAZAKI, Teruhisa</creator><creator>SAITA, Kenji</creator><creator>UEDA, Masaharu</creator><creator>TANAHASHI, Takuya</creator><scope>EVB</scope></search><sort><creationdate>20240919</creationdate><title>Welded rail</title><author>MIYAZAKI, Teruhisa ; SAITA, Kenji ; UEDA, Masaharu ; TANAHASHI, Takuya</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU2021352012BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2024</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>CLADDING OR PLATING BY SOLDERING OR WELDING</topic><topic>CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES</topic><topic>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>MACHINE TOOLS</topic><topic>MACHINES FOR MAKING RAILWAYS OF ALL KINDS</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>PERFORMING OPERATIONS</topic><topic>PERMANENT WAY</topic><topic>PERMANENT-WAY TOOLS</topic><topic>SOLDERING OR UNSOLDERING</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><topic>WELDING</topic><topic>WORKING BY LASER BEAM</topic><toplevel>online_resources</toplevel><creatorcontrib>MIYAZAKI, Teruhisa</creatorcontrib><creatorcontrib>SAITA, Kenji</creatorcontrib><creatorcontrib>UEDA, Masaharu</creatorcontrib><creatorcontrib>TANAHASHI, Takuya</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MIYAZAKI, Teruhisa</au><au>SAITA, Kenji</au><au>UEDA, Masaharu</au><au>TANAHASHI, Takuya</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Welded rail</title><date>2024-09-19</date><risdate>2024</risdate><abstract>This welded rail according to one aspect of the present invention is provided with: a plurality of rail parts that each have a head section and a pillar section and each have a height h; and a welding joint part that joins the rail parts. The rail parts each have a predetermined chemical composition. The HAZ width of the welding joint part is not more than 60 mm. Regarding the welding joint part, in a region located from 0 to (2/3)×h from a head top part outline surface and within ±5 mm in a longitudinal direction from the welding center in a cross section passing through the center of the welding joint part and in parallel with a longitudinal direction and a vertical direction of the welded rail, the area percentage of martensite structures is 0.0006-0.1000%. In said region, the number of martensite structures having a particle size of 20-200 μm is 3-80.</abstract><oa>free_for_read</oa></addata></record> |
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| source | esp@cenet |
| subjects | ALLOYS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FERROUS OR NON-FERROUS ALLOYS FIXED CONSTRUCTIONS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MACHINE TOOLS MACHINES FOR MAKING RAILWAYS OF ALL KINDS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PERMANENT WAY PERMANENT-WAY TOOLS SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM |
| title | Welded rail |
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