Method for producing a nitrided packaging steel
The invention relates to a method for producing a nitrided packaging steel from a hot-rolled steel product with a carbon content of 400 to 1200 ppm, characterized by a cold-rolling of the steel product to a flat steel product, subsequent recrystallization annealing of the cold-rolled flat steel prod...
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| creator | Sauer, Reiner Massicot, Blaise Kaup, Burkhard Kohl, Manuel Klemmer, Ricarda Kiewitz, Chrysanthus |
| description | The invention relates to a method for producing a nitrided packaging steel from a hot-rolled steel product with a carbon content of 400 to 1200 ppm, characterized by a cold-rolling of the steel product to a flat steel product, subsequent recrystallization annealing of the cold-rolled flat steel product in an annealing furnace, in particular a continuous annealing furnace, wherein a nitrogen-containing gas is supplied into the annealing furnace and is directed at the flat steel product in order to introduce unbonded nitrogen into the flat steel product in an amount corresponding to a concentration of more than 100 ppm, or to increase the amount of unbonded nitrogen in the flat steel product to a concentration of more than 100 ppm, and subsequent cooling of the recrystallized annealed flat steel product at a cooling rate of at least 100 K/s directly after the recrystallization annealing. Using this method, cold-rolled flat steel products may be produced for packaging purposes with a tensile strength of more than 650 MPa and in particular between 700 and 850 MPa. |
| format | Patent |
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Using this method, cold-rolled flat steel products may be produced for packaging purposes with a tensile strength of more than 650 MPa and in particular between 700 and 850 MPa.</description><language>eng</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2017</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=20170928&DB=EPODOC&CC=AU&NR=2015349052A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170928&DB=EPODOC&CC=AU&NR=2015349052A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Sauer, Reiner</creatorcontrib><creatorcontrib>Massicot, Blaise</creatorcontrib><creatorcontrib>Kaup, Burkhard</creatorcontrib><creatorcontrib>Kohl, Manuel</creatorcontrib><creatorcontrib>Klemmer, Ricarda</creatorcontrib><creatorcontrib>Kiewitz, Chrysanthus</creatorcontrib><title>Method for producing a nitrided packaging steel</title><description>The invention relates to a method for producing a nitrided packaging steel from a hot-rolled steel product with a carbon content of 400 to 1200 ppm, characterized by a cold-rolling of the steel product to a flat steel product, subsequent recrystallization annealing of the cold-rolled flat steel product in an annealing furnace, in particular a continuous annealing furnace, wherein a nitrogen-containing gas is supplied into the annealing furnace and is directed at the flat steel product in order to introduce unbonded nitrogen into the flat steel product in an amount corresponding to a concentration of more than 100 ppm, or to increase the amount of unbonded nitrogen in the flat steel product to a concentration of more than 100 ppm, and subsequent cooling of the recrystallized annealed flat steel product at a cooling rate of at least 100 K/s directly after the recrystallization annealing. 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Using this method, cold-rolled flat steel products may be produced for packaging purposes with a tensile strength of more than 650 MPa and in particular between 700 and 850 MPa.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Method for producing a nitrided packaging steel |
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