STEEL FOR CHISELS AND CHISEL
The present invention provides a steel for chisels and a chisel, which have improved durability. The steel that constitutes the chisel (10) according to the present invention is characterized by comprising 0.40-0.45 mass% carbon, 0.50-0.80 mass% silicon, 1.00-1.30 mass% manganese, 0.001-0.005 mass%...
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| creator | TSUNEKAGE NORIMASA AMADA EIJI OCHIAI AKIHIRO NAGAKI YUKO |
| description | The present invention provides a steel for chisels and a chisel, which have improved durability. The steel that constitutes the chisel (10) according to the present invention is characterized by comprising 0.40-0.45 mass% carbon, 0.50-0.80 mass% silicon, 1.00-1.30 mass% manganese, 0.001-0.005 mass% sulfur, 2.90-3.80 mass% chromium, and 0.20-0.40 mass% molybdenum, with the remainder being composedof iron and unavoidable impurities; and by the ideal critical diameter DI, as defined in formula (1), being 600 or greater. DI = 7 .(%C)1/2 .(1+0.64.%Si) .(1+4.1.%Mn) .(1+2.83.%P). (1-0.62.%S) .(1+2.33.%Cr).(1+3.14.%Mo).
本发明提供种提高了耐久性的钻头用钢及钻头。构成本发明的钻头(10)的钢的特征在于，含有：0.40质量％以上且0.45质量％以下的碳、0.50质量％以上且0.80质量％以下的硅、1.00质量％以上且1.30质量％以下的锰、0.001质量％以上且0.005质量％以下的硫、2.90质量％以上且3.80质量％以下的铬、以及0.20质量％以上且0.40质量％以下的钼，余量为铁及不可避免的杂质，式(1)中定义的理想临界直径DI的值为600以上。DI＝7·(％C)·(1+0.64·％Si)·(1+4.1·％Mn)·(1+2.83·％P)·(1-0.62·％S)·(1+2.33·％Cr)·(1+3.14·％Mo)···(1)。 |
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本发明提供种提高了耐久性的钻头用钢及钻头。构成本发明的钻头(10)的钢的特征在于，含有：0.40质量％以上且0.45质量％以下的碳、0.50质量％以上且0.80质量％以下的硅、1.00质量％以上且1.30质量％以下的锰、0.001质量％以上且0.005质量％以下的硫、2.90质量％以上且3.80质量％以下的铬、以及0.20质量％以上且0.40质量％以下的钼，余量为铁及不可避免的杂质，式(1)中定义的理想临界直径DI的值为600以上。DI＝7·(％C)·(1+0.64·％Si)·(1+4.1·％Mn)·(1+2.83·％P)·(1-0.62·％S)·(1+2.33·％Cr)·(1+3.14·％Mo)···(1)。</description><language>chi ; eng</language><subject>ALLOYS ; CHEMISTRY ; EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; FERROUS OR NON-FERROUS ALLOYS ; FIXED CONSTRUCTIONS ; HAND TOOLS ; MANIPULATORS ; METALLURGY ; MINING ; MINING OR QUARRYING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; PERCUSSIVE TOOLS ; PERFORMING OPERATIONS ; PORTABLE POWER-DRIVEN TOOLS ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2018</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=20180102&DB=EPODOC&CC=CN&NR=107532256A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180102&DB=EPODOC&CC=CN&NR=107532256A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TSUNEKAGE NORIMASA</creatorcontrib><creatorcontrib>AMADA EIJI</creatorcontrib><creatorcontrib>OCHIAI AKIHIRO</creatorcontrib><creatorcontrib>NAGAKI YUKO</creatorcontrib><title>STEEL FOR CHISELS AND CHISEL</title><description>The present invention provides a steel for chisels and a chisel, which have improved durability. The steel that constitutes the chisel (10) according to the present invention is characterized by comprising 0.40-0.45 mass% carbon, 0.50-0.80 mass% silicon, 1.00-1.30 mass% manganese, 0.001-0.005 mass% sulfur, 2.90-3.80 mass% chromium, and 0.20-0.40 mass% molybdenum, with the remainder being composedof iron and unavoidable impurities; and by the ideal critical diameter DI, as defined in formula (1), being 600 or greater. DI = 7 .(%C)1/2 .(1+0.64.%Si) .(1+4.1.%Mn) .(1+2.83.%P). (1-0.62.%S) .(1+2.33.%Cr).(1+3.14.%Mo).
本发明提供种提高了耐久性的钻头用钢及钻头。构成本发明的钻头(10)的钢的特征在于，含有：0.40质量％以上且0.45质量％以下的碳、0.50质量％以上且0.80质量％以下的硅、1.00质量％以上且1.30质量％以下的锰、0.001质量％以上且0.005质量％以下的硫、2.90质量％以上且3.80质量％以下的铬、以及0.20质量％以上且0.40质量％以下的钼，余量为铁及不可避免的杂质，式(1)中定义的理想临界直径DI的值为600以上。DI＝7·(％C)·(1+0.64·％Si)·(1+4.1·％Mn)·(1+2.83·％P)·(1-0.62·％S)·(1+2.33·％Cr)·(1+3.14·％Mo)···(1)。</description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>EARTH DRILLING</subject><subject>EARTH DRILLING, e.g. DEEP DRILLING</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>HAND TOOLS</subject><subject>MANIPULATORS</subject><subject>METALLURGY</subject><subject>MINING</subject><subject>MINING OR QUARRYING</subject><subject>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><subject>PERCUSSIVE TOOLS</subject><subject>PERFORMING OPERATIONS</subject><subject>PORTABLE POWER-DRIVEN TOOLS</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJAJDnF19VFw8w9ScPbwDHb1CVZw9HOBsnkYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyal5qSbyzn6GBuamxkZGpmaMxMWoAU18gew</recordid><startdate>20180102</startdate><enddate>20180102</enddate><creator>TSUNEKAGE NORIMASA</creator><creator>AMADA EIJI</creator><creator>OCHIAI AKIHIRO</creator><creator>NAGAKI YUKO</creator><scope>EVB</scope></search><sort><creationdate>20180102</creationdate><title>STEEL FOR CHISELS AND CHISEL</title><author>TSUNEKAGE NORIMASA ; AMADA EIJI ; OCHIAI AKIHIRO ; NAGAKI YUKO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN107532256A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2018</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>EARTH DRILLING</topic><topic>EARTH DRILLING, e.g. DEEP DRILLING</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>HAND TOOLS</topic><topic>MANIPULATORS</topic><topic>METALLURGY</topic><topic>MINING</topic><topic>MINING OR QUARRYING</topic><topic>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</topic><topic>PERCUSSIVE TOOLS</topic><topic>PERFORMING OPERATIONS</topic><topic>PORTABLE POWER-DRIVEN TOOLS</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>TSUNEKAGE NORIMASA</creatorcontrib><creatorcontrib>AMADA EIJI</creatorcontrib><creatorcontrib>OCHIAI AKIHIRO</creatorcontrib><creatorcontrib>NAGAKI YUKO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TSUNEKAGE NORIMASA</au><au>AMADA EIJI</au><au>OCHIAI AKIHIRO</au><au>NAGAKI YUKO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>STEEL FOR CHISELS AND CHISEL</title><date>2018-01-02</date><risdate>2018</risdate><abstract>The present invention provides a steel for chisels and a chisel, which have improved durability. The steel that constitutes the chisel (10) according to the present invention is characterized by comprising 0.40-0.45 mass% carbon, 0.50-0.80 mass% silicon, 1.00-1.30 mass% manganese, 0.001-0.005 mass% sulfur, 2.90-3.80 mass% chromium, and 0.20-0.40 mass% molybdenum, with the remainder being composedof iron and unavoidable impurities; and by the ideal critical diameter DI, as defined in formula (1), being 600 or greater. DI = 7 .(%C)1/2 .(1+0.64.%Si) .(1+4.1.%Mn) .(1+2.83.%P). (1-0.62.%S) .(1+2.33.%Cr).(1+3.14.%Mo).
本发明提供种提高了耐久性的钻头用钢及钻头。构成本发明的钻头(10)的钢的特征在于，含有：0.40质量％以上且0.45质量％以下的碳、0.50质量％以上且0.80质量％以下的硅、1.00质量％以上且1.30质量％以下的锰、0.001质量％以上且0.005质量％以下的硫、2.90质量％以上且3.80质量％以下的铬、以及0.20质量％以上且0.40质量％以下的钼，余量为铁及不可避免的杂质，式(1)中定义的理想临界直径DI的值为600以上。DI＝7·(％C)·(1+0.64·％Si)·(1+4.1·％Mn)·(1+2.83·％P)·(1-0.62·％S)·(1+2.33·％Cr)·(1+3.14·％Mo)···(1)。</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CHEMISTRY EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FERROUS OR NON-FERROUS ALLOYS FIXED CONSTRUCTIONS HAND TOOLS MANIPULATORS METALLURGY MINING MINING OR QUARRYING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERCUSSIVE TOOLS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | STEEL FOR CHISELS AND CHISEL |
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