Special steel with hard exterior and tough interior and manufacture method thereof
The invention relates to a special steel with hard exterior and tough interior and manufacture method thereof, the special steel is obtained by casting two kinds of molten steel with different carbon contents together to form a core portion, an intermediate layer and an outer layer, the carbon conte...
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| creator | NI YOULAI ZHOU YANLI WU BING YANG MIPING SHANG HUA YU HUI ZHANG JUNPING ZHAO GUANFU LI FAXING SUN YONGXI LIU JINLING YANG BO FAN XIRONG MA CHUANQING |
| description | The invention relates to a special steel with hard exterior and tough interior and manufacture method thereof, the special steel is obtained by casting two kinds of molten steel with different carbon contents together to form a core portion, an intermediate layer and an outer layer, the carbon content of the outer layer is greater than that of the core portion; the intermediate layer is formed by contacting two kinds of molten steel with different carbon contents naturally; the hardness of the outer layer is greater than that of the core portion. The invention also provides a preparation method of the special steel. The special steel which has a performance of hard exterior and tough interior can be used in the manufacture of various hard-exterior and tough-interior cutters and gears directly, the subsequent processes such as carburizing and nitriding of gear can be omitted and production costs are reduced; the conventional casting and die casting equipment is used in the preparation methods and the casting p |
| format | Patent |
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The invention also provides a preparation method of the special steel. The special steel which has a performance of hard exterior and tough interior can be used in the manufacture of various hard-exterior and tough-interior cutters and gears directly, the subsequent processes such as carburizing and nitriding of gear can be omitted and production costs are reduced; the conventional casting and die casting equipment is used in the preparation methods and the casting p</description><language>chi ; eng</language><subject>ALLOYS ; CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; PERFORMING OPERATIONS ; POWDER METALLURGY ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2014</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=20140326&DB=EPODOC&CC=CN&NR=103667951A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140326&DB=EPODOC&CC=CN&NR=103667951A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NI YOULAI</creatorcontrib><creatorcontrib>ZHOU YANLI</creatorcontrib><creatorcontrib>WU BING</creatorcontrib><creatorcontrib>YANG MIPING</creatorcontrib><creatorcontrib>SHANG HUA</creatorcontrib><creatorcontrib>YU HUI</creatorcontrib><creatorcontrib>ZHANG JUNPING</creatorcontrib><creatorcontrib>ZHAO GUANFU</creatorcontrib><creatorcontrib>LI FAXING</creatorcontrib><creatorcontrib>SUN YONGXI</creatorcontrib><creatorcontrib>LIU JINLING</creatorcontrib><creatorcontrib>YANG BO</creatorcontrib><creatorcontrib>FAN XIRONG</creatorcontrib><creatorcontrib>MA CHUANQING</creatorcontrib><title>Special steel with hard exterior and tough interior and manufacture method thereof</title><description>The invention relates to a special steel with hard exterior and tough interior and manufacture method thereof, the special steel is obtained by casting two kinds of molten steel with different carbon contents together to form a core portion, an intermediate layer and an outer layer, the carbon content of the outer layer is greater than that of the core portion; the intermediate layer is formed by contacting two kinds of molten steel with different carbon contents naturally; the hardness of the outer layer is greater than that of the core portion. The invention also provides a preparation method of the special steel. The special steel which has a performance of hard exterior and tough interior can be used in the manufacture of various hard-exterior and tough-interior cutters and gears directly, the subsequent processes such as carburizing and nitriding of gear can be omitted and production costs are reduced; the conventional casting and die casting equipment is used in the preparation methods and the casting p</description><subject>ALLOYS</subject><subject>CASTING</subject><subject>CASTING OF METALS</subject><subject>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2014</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyrEKwjAURuEsDqK-w_UBBEux4ihFcXJQ93JJ_zaBNAnJDfr4Ojg4Oh04fHN1u0doy46yAI6eVgwZTj3hJUg2JGLfk4QyGrL-Z03sy8BaSgJNEBM-yiAhDEs1G9hlrL5dqPX59GgvG8TQIUfW8JCuvVbbumn2h111rP8xbyucOFI</recordid><startdate>20140326</startdate><enddate>20140326</enddate><creator>NI YOULAI</creator><creator>ZHOU YANLI</creator><creator>WU BING</creator><creator>YANG MIPING</creator><creator>SHANG HUA</creator><creator>YU HUI</creator><creator>ZHANG JUNPING</creator><creator>ZHAO GUANFU</creator><creator>LI FAXING</creator><creator>SUN YONGXI</creator><creator>LIU JINLING</creator><creator>YANG BO</creator><creator>FAN XIRONG</creator><creator>MA CHUANQING</creator><scope>EVB</scope></search><sort><creationdate>20140326</creationdate><title>Special steel with hard exterior and tough interior and manufacture method thereof</title><author>NI YOULAI ; ZHOU YANLI ; WU BING ; YANG MIPING ; SHANG HUA ; YU HUI ; ZHANG JUNPING ; ZHAO GUANFU ; LI FAXING ; SUN YONGXI ; LIU JINLING ; YANG BO ; FAN XIRONG ; MA CHUANQING</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN103667951A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2014</creationdate><topic>ALLOYS</topic><topic>CASTING</topic><topic>CASTING OF METALS</topic><topic>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>NI YOULAI</creatorcontrib><creatorcontrib>ZHOU YANLI</creatorcontrib><creatorcontrib>WU BING</creatorcontrib><creatorcontrib>YANG MIPING</creatorcontrib><creatorcontrib>SHANG HUA</creatorcontrib><creatorcontrib>YU HUI</creatorcontrib><creatorcontrib>ZHANG JUNPING</creatorcontrib><creatorcontrib>ZHAO GUANFU</creatorcontrib><creatorcontrib>LI FAXING</creatorcontrib><creatorcontrib>SUN YONGXI</creatorcontrib><creatorcontrib>LIU JINLING</creatorcontrib><creatorcontrib>YANG BO</creatorcontrib><creatorcontrib>FAN XIRONG</creatorcontrib><creatorcontrib>MA CHUANQING</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NI YOULAI</au><au>ZHOU YANLI</au><au>WU BING</au><au>YANG MIPING</au><au>SHANG HUA</au><au>YU HUI</au><au>ZHANG JUNPING</au><au>ZHAO GUANFU</au><au>LI FAXING</au><au>SUN YONGXI</au><au>LIU JINLING</au><au>YANG BO</au><au>FAN XIRONG</au><au>MA CHUANQING</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Special steel with hard exterior and tough interior and manufacture method thereof</title><date>2014-03-26</date><risdate>2014</risdate><abstract>The invention relates to a special steel with hard exterior and tough interior and manufacture method thereof, the special steel is obtained by casting two kinds of molten steel with different carbon contents together to form a core portion, an intermediate layer and an outer layer, the carbon content of the outer layer is greater than that of the core portion; the intermediate layer is formed by contacting two kinds of molten steel with different carbon contents naturally; the hardness of the outer layer is greater than that of the core portion. The invention also provides a preparation method of the special steel. The special steel which has a performance of hard exterior and tough interior can be used in the manufacture of various hard-exterior and tough-interior cutters and gears directly, the subsequent processes such as carburizing and nitriding of gear can be omitted and production costs are reduced; the conventional casting and die casting equipment is used in the preparation methods and the casting p</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Special steel with hard exterior and tough interior and manufacture method thereof |
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