Thermal treatment method for reducing hydrogen-induced delayed cracking sensitivity of 1700MPa-level thermoformed steel
The invention discloses a thermal treatment method for reducing the hydrogen-induced delayed cracking sensitivity of 1700MPa-level thermoformed steel. The thermal treatment method comprises the following steps of firstly heating a steel plate in a heating furnace containing a nitrogen protective atm...
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| creator | CHEN MING CHEN YONG YU LI PENG ZHOU CHEN YIN ZHU HONGCHUAN HU KUANHUI GE RUI PENG WENJIE ZHOU SHAOYUN LIU YUANYUAN WEI XING DONG BEI |
| description | The invention discloses a thermal treatment method for reducing the hydrogen-induced delayed cracking sensitivity of 1700MPa-level thermoformed steel. The thermal treatment method comprises the following steps of firstly heating a steel plate in a heating furnace containing a nitrogen protective atmosphere to the temperature of 900-950 DEG C; maintaining the temperature for 180-300 seconds; carrying out austenization; subsequently quickly putting the steel plate into a mold which is provided with a temperature control device and carrying out stamping formation; quenching the steel plate at thecooling speed of 20-40 DEG C/s; controlling the temperature of the mold to make sure that the quenching temperature of the steel plate is 280-320 DEG C; maintaining the temperature at 280-320 DEG C for 30-120 seconds; afterwards carrying out water quenching until the temperature of the steel plate is equal to room temperature to obtain a lath martensite structure and a residual austenite structure; and obtaining that the |
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The thermal treatment method comprises the following steps of firstly heating a steel plate in a heating furnace containing a nitrogen protective atmosphere to the temperature of 900-950 DEG C; maintaining the temperature for 180-300 seconds; carrying out austenization; subsequently quickly putting the steel plate into a mold which is provided with a temperature control device and carrying out stamping formation; quenching the steel plate at thecooling speed of 20-40 DEG C/s; controlling the temperature of the mold to make sure that the quenching temperature of the steel plate is 280-320 DEG C; maintaining the temperature at 280-320 DEG C for 30-120 seconds; afterwards carrying out water quenching until the temperature of the steel plate is equal to room temperature to obtain a lath martensite structure and a residual austenite structure; and obtaining that the</description><language>chi ; eng</language><subject>CHEMISTRY ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; PERFORMING OPERATIONS ; PUNCHING METAL ; TRANSPORTING ; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</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=20181106&DB=EPODOC&CC=CN&NR=108754099A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20181106&DB=EPODOC&CC=CN&NR=108754099A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHEN MING</creatorcontrib><creatorcontrib>CHEN YONG</creatorcontrib><creatorcontrib>YU LI</creatorcontrib><creatorcontrib>PENG ZHOU</creatorcontrib><creatorcontrib>CHEN YIN</creatorcontrib><creatorcontrib>ZHU HONGCHUAN</creatorcontrib><creatorcontrib>HU KUANHUI</creatorcontrib><creatorcontrib>GE RUI</creatorcontrib><creatorcontrib>PENG WENJIE</creatorcontrib><creatorcontrib>ZHOU SHAOYUN</creatorcontrib><creatorcontrib>LIU YUANYUAN</creatorcontrib><creatorcontrib>WEI XING</creatorcontrib><creatorcontrib>DONG BEI</creatorcontrib><title>Thermal treatment method for reducing hydrogen-induced delayed cracking sensitivity of 1700MPa-level thermoformed steel</title><description>The invention discloses a thermal treatment method for reducing the hydrogen-induced delayed cracking sensitivity of 1700MPa-level thermoformed steel. The thermal treatment method comprises the following steps of firstly heating a steel plate in a heating furnace containing a nitrogen protective atmosphere to the temperature of 900-950 DEG C; maintaining the temperature for 180-300 seconds; carrying out austenization; subsequently quickly putting the steel plate into a mold which is provided with a temperature control device and carrying out stamping formation; quenching the steel plate at thecooling speed of 20-40 DEG C/s; controlling the temperature of the mold to make sure that the quenching temperature of the steel plate is 280-320 DEG C; maintaining the temperature at 280-320 DEG C for 30-120 seconds; afterwards carrying out water quenching until the temperature of the steel plate is equal to room temperature to obtain a lath martensite structure and a residual austenite structure; and obtaining that the</description><subject>CHEMISTRY</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>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>PERFORMING OPERATIONS</subject><subject>PUNCHING METAL</subject><subject>TRANSPORTING</subject><subject>WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjU0KwjAYRLtxIeod4gEKKSrapRTFjeKi-xKSaRvMT0k-K729KXgAVwPDmzfL7FP3CFYYRgGCLBwxC-q9Yq0PLEC9pXYd6ycVfAeXa5caKKZgxJRSBiFfMxHhoiY9apqYb1lx5Pz-FLnBiCSfT3wy2jSJBJh1tmiFidj8cpVtr5e6uuUYfIM4CAkHaqpHwU_Hw56X5Xn3D_MFigNGBQ</recordid><startdate>20181106</startdate><enddate>20181106</enddate><creator>CHEN MING</creator><creator>CHEN YONG</creator><creator>YU LI</creator><creator>PENG ZHOU</creator><creator>CHEN YIN</creator><creator>ZHU HONGCHUAN</creator><creator>HU KUANHUI</creator><creator>GE RUI</creator><creator>PENG WENJIE</creator><creator>ZHOU SHAOYUN</creator><creator>LIU YUANYUAN</creator><creator>WEI XING</creator><creator>DONG BEI</creator><scope>EVB</scope></search><sort><creationdate>20181106</creationdate><title>Thermal treatment method for reducing hydrogen-induced delayed cracking sensitivity of 1700MPa-level thermoformed steel</title><author>CHEN MING ; CHEN YONG ; YU LI ; PENG ZHOU ; CHEN YIN ; ZHU HONGCHUAN ; HU KUANHUI ; GE RUI ; PENG WENJIE ; ZHOU SHAOYUN ; LIU YUANYUAN ; WEI XING ; DONG BEI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN108754099A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2018</creationdate><topic>CHEMISTRY</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>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>PERFORMING OPERATIONS</topic><topic>PUNCHING METAL</topic><topic>TRANSPORTING</topic><topic>WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</topic><toplevel>online_resources</toplevel><creatorcontrib>CHEN MING</creatorcontrib><creatorcontrib>CHEN YONG</creatorcontrib><creatorcontrib>YU LI</creatorcontrib><creatorcontrib>PENG ZHOU</creatorcontrib><creatorcontrib>CHEN YIN</creatorcontrib><creatorcontrib>ZHU HONGCHUAN</creatorcontrib><creatorcontrib>HU KUANHUI</creatorcontrib><creatorcontrib>GE RUI</creatorcontrib><creatorcontrib>PENG WENJIE</creatorcontrib><creatorcontrib>ZHOU SHAOYUN</creatorcontrib><creatorcontrib>LIU YUANYUAN</creatorcontrib><creatorcontrib>WEI XING</creatorcontrib><creatorcontrib>DONG BEI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHEN MING</au><au>CHEN YONG</au><au>YU LI</au><au>PENG ZHOU</au><au>CHEN YIN</au><au>ZHU HONGCHUAN</au><au>HU KUANHUI</au><au>GE RUI</au><au>PENG WENJIE</au><au>ZHOU SHAOYUN</au><au>LIU YUANYUAN</au><au>WEI XING</au><au>DONG BEI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Thermal treatment method for reducing hydrogen-induced delayed cracking sensitivity of 1700MPa-level thermoformed steel</title><date>2018-11-06</date><risdate>2018</risdate><abstract>The invention discloses a thermal treatment method for reducing the hydrogen-induced delayed cracking sensitivity of 1700MPa-level thermoformed steel. The thermal treatment method comprises the following steps of firstly heating a steel plate in a heating furnace containing a nitrogen protective atmosphere to the temperature of 900-950 DEG C; maintaining the temperature for 180-300 seconds; carrying out austenization; subsequently quickly putting the steel plate into a mold which is provided with a temperature control device and carrying out stamping formation; quenching the steel plate at thecooling speed of 20-40 DEG C/s; controlling the temperature of the mold to make sure that the quenching temperature of the steel plate is 280-320 DEG C; maintaining the temperature at 280-320 DEG C for 30-120 seconds; afterwards carrying out water quenching until the temperature of the steel plate is equal to room temperature to obtain a lath martensite structure and a residual austenite structure; and obtaining that the</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL |
| title | Thermal treatment method for reducing hydrogen-induced delayed cracking sensitivity of 1700MPa-level thermoformed steel |
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