VERFAHREN ZUM HERSTELLEN EINES WARMBANDES
Hot rolled microalloyed steel strip production, uses inter-stand cooling to allow final rolling passes at a temperature below the recrystallization temperature. Production of hot rolled strip (W) of unalloyed or low alloy steel containing micro-alloying elements, from optionally reheated continuousl...
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| creator | KAWALLA, RUDOLF, DR FRIEDRICH, KARL ERNST PIRCHER, HANS HELLER,THOMAS ENGL, BERNHARD SCHMITZ, HANS-PETER |
| description | Hot rolled microalloyed steel strip production, uses inter-stand cooling to allow final rolling passes at a temperature below the recrystallization temperature. Production of hot rolled strip (W) of unalloyed or low alloy steel containing micro-alloying elements, from optionally reheated continuously cast slabs, plates or strip, comprises: (a) feeding strip into the first stand (F1) of a tandem finishing line (FS) at ≥ 30 degrees C above the recrystallization end temperature (TR); (b) continuously rolling the strip in one or more passes in the austenite recrystallization region; (c) cooling the strip between adjacent stands (F1-F7) by cooling devices (K2-K7) to ≥ 20 degrees C below the recrystallization end temperature (TR) at a cooling rate of ≥ 10 degrees C/sec.; and (d) rolling the strip at below the recrystallization end temperature (TR) in several passes with a total deformation ( epsilon h) of ≥ 30%. An Independent claim is also included for a hot strip line for carrying out the above process. |
| format | Patent |
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Production of hot rolled strip (W) of unalloyed or low alloy steel containing micro-alloying elements, from optionally reheated continuously cast slabs, plates or strip, comprises: (a) feeding strip into the first stand (F1) of a tandem finishing line (FS) at ≥ 30 degrees C above the recrystallization end temperature (TR); (b) continuously rolling the strip in one or more passes in the austenite recrystallization region; (c) cooling the strip between adjacent stands (F1-F7) by cooling devices (K2-K7) to ≥ 20 degrees C below the recrystallization end temperature (TR) at a cooling rate of ≥ 10 degrees C/sec.; and (d) rolling the strip at below the recrystallization end temperature (TR) in several passes with a total deformation ( epsilon h) of ≥ 30%. An Independent claim is also included for a hot strip line for carrying out the above process.</description><edition>7</edition><language>ger</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 ; ROLLING OF METAL ; TRANSPORTING</subject><creationdate>2004</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=20040515&DB=EPODOC&CC=AT&NR=E266741T1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040515&DB=EPODOC&CC=AT&NR=E266741T1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KAWALLA, RUDOLF, DR</creatorcontrib><creatorcontrib>FRIEDRICH, KARL ERNST</creatorcontrib><creatorcontrib>PIRCHER, HANS</creatorcontrib><creatorcontrib>HELLER,THOMAS</creatorcontrib><creatorcontrib>ENGL, BERNHARD</creatorcontrib><creatorcontrib>SCHMITZ, HANS-PETER</creatorcontrib><title>VERFAHREN ZUM HERSTELLEN EINES WARMBANDES</title><description>Hot rolled microalloyed steel strip production, uses inter-stand cooling to allow final rolling passes at a temperature below the recrystallization temperature. Production of hot rolled strip (W) of unalloyed or low alloy steel containing micro-alloying elements, from optionally reheated continuously cast slabs, plates or strip, comprises: (a) feeding strip into the first stand (F1) of a tandem finishing line (FS) at ≥ 30 degrees C above the recrystallization end temperature (TR); (b) continuously rolling the strip in one or more passes in the austenite recrystallization region; (c) cooling the strip between adjacent stands (F1-F7) by cooling devices (K2-K7) to ≥ 20 degrees C below the recrystallization end temperature (TR) at a cooling rate of ≥ 10 degrees C/sec.; and (d) rolling the strip at below the recrystallization end temperature (TR) in several passes with a total deformation ( epsilon h) of ≥ 30%. 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Production of hot rolled strip (W) of unalloyed or low alloy steel containing micro-alloying elements, from optionally reheated continuously cast slabs, plates or strip, comprises: (a) feeding strip into the first stand (F1) of a tandem finishing line (FS) at ≥ 30 degrees C above the recrystallization end temperature (TR); (b) continuously rolling the strip in one or more passes in the austenite recrystallization region; (c) cooling the strip between adjacent stands (F1-F7) by cooling devices (K2-K7) to ≥ 20 degrees C below the recrystallization end temperature (TR) at a cooling rate of ≥ 10 degrees C/sec.; and (d) rolling the strip at below the recrystallization end temperature (TR) in several passes with a total deformation ( epsilon h) of ≥ 30%. An Independent claim is also included for a hot strip line for carrying out the above process.</abstract><edition>7</edition><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 ROLLING OF METAL TRANSPORTING |
| title | VERFAHREN ZUM HERSTELLEN EINES WARMBANDES |
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