FIELD: metallurgy, possibly rolling strips in continuous wide strip rolling mills.
SUBSTANCE: process comprises steps of heating slabs up to austenization temperature; further multi-pass rolling of strips at normalized temperature of rolling end stage; cooling strips by water and coiling it. According to invention in last pass strip is rolled at percentage reduction 8 - 17% at circumference velocity of rolls 5 - 10 m/s and at rolling end temperature 820 - 880°C. Strip is water cooled until temperature 510 - 570°C.
EFFECT: improved strength properties of metal at keeping its high ductility and stable viscosity due to forming optimal microstructure of hot rolled strips.
6 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CANDIES MANUFACTURING | 2007 |
|
RU2353670C1 |
| PROCEDURE FOR PRODUCTION OF STRIPS IN REELS | 2010 |
|
RU2436848C1 |
| METHOD OF CANDY MANUFACTURING FROM LOW-ALLOY STEEL | 2006 |
|
RU2341565C2 |
| METHOD FOR HOT ROLLING OF STEEL STRIPS WITH CARBONITRIDE REINFORCEMENT | 2001 |
|
RU2195505C1 |
| STRIPS OF LOW ALLOY STEEL PRODUCING METHOD | 2006 |
|
RU2312905C1 |
| METHOD OF PRODUCTION OF STRIPS OUT OF LOW ALLOYED STEEL | 2007 |
|
RU2358024C1 |
| METHOD OF BLADES MANUFACTURING | 2007 |
|
RU2346060C2 |
| PRODUCTION METHOD OF CANDIES FROM LOW-ALLOYED STEEL | 2008 |
|
RU2375469C1 |
| METHOD OF PRODUCTION STRIPS OUT OF LOW ALLOYED STEEL | 2007 |
|
RU2358023C1 |
| STRIP MAKING METHOD FOR PRODUCING TUBES | 2005 |
|
RU2292404C1 |
