FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. Proposed method comprises rolling at multistand continuous mill with seven-stand finishing group with preset total reductions EΣ and thermal conditions. In rolling steel with thickness h=5…12 mm with carbon equivalent C0=C+Mn/9+Si/3=0.13…0.17, EΣ is taken to equal 72…83%. Note here that rolling temperature at sixth stand is made equal T6=1050-5h, degrees, rolling termination temperature males Trol-term=908-8,6h, degrees, while strip coiling temperature makes Tct=634-2.9h, degrees.
EFFECT: higher plasticity and strength.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF HOT ROLLING OF LOW-CARBON LIGHT STEEL | 2007 |
|
RU2353442C1 |
| METHOD TO PRODUCE HOT-ROLLED WIDE-STRIP COIL STOCK | 2012 |
|
RU2516212C1 |
| MANUFACTURING METHOD OF COLD-ROLLED STRIP STEEL | 2008 |
|
RU2360747C1 |
| METHOD OF PRODUCING OF LOW-CARBON COLD-ROLLED SHEET STEEL FOR DEEP-DRAWING | 2009 |
|
RU2379360C1 |
| METHOD OF HOT ROLLING ON CONTINUOUS WIDE-STRIP HOT MILL | 2008 |
|
RU2360749C1 |
| METHOD OF MANUFACTURE OF LOW-ALLOYABLE ROLL STRIPS WITH ENHANCED CORROSION RESISTANCE | 2017 |
|
RU2675307C1 |
| METHOD OF PRODUCING THIN HOT-ROLLED SHEET STEEL | 2012 |
|
RU2493923C1 |
| METHOD FOR PRODUCTION OF LOW-ALLOY ROLLED PRODUCTS OF STRENGTH CATEGORY S390P | 2021 |
|
RU2781928C1 |
| METHOD OF PRODUCTION OF LOW-CARBON SHEET STEEL | 2005 |
|
RU2288281C1 |
| METHOD FOR MANUFACTURE OF HOT ROLLED STRIPS FOR TUBE SKELP | 2002 |
|
RU2203964C1 |
