FIELD: rolled stock production, possibly manufacture of wide hot rolled strips, rolled sheets processed in aggregates for lengthwise and crosswise uncoiling.
SUBSTANCE: at making rolled products with carbon content 0.17 - 0.20% and strip thickness 3 - 8 mm, strip temperature is sustained in range 870 - 900°C at end stage of hot rolling in finish group of stands of mill. Then strip is coiled at temperature 600 - 630°C. Hot rolled strip coil is guided for uncoiling in uncoiling aggregates at temperature of central (along width) portion of strip no more than 40°C. At uncoiling strip, cooling agent with temperature no more than 20°C is fed onto outer turn of strip and on surface of leading uncoiled part of strip.
EFFECT: possibility for providing optimal structure and, therefore mechanical properties of rolled products.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| STRIP HOT ROLLING PROCESS | 2004 |
|
RU2267368C1 |
| METHOD OF PRODUCING HOT-ROLLED STOCK | 2010 |
|
RU2445177C1 |
| METHOD FOR MAKING HOT ROLLED HOT ZINC-PLATED STRIP | 2005 |
|
RU2310528C2 |
| MANUFACTURING METHOD OF HOT-ROLLED PIPE STEEL ROLLER | 2008 |
|
RU2356658C1 |
| MANUFACTURING METHOD OF COLD-ROLLED STRIP FOR COLD BLANKING | 2012 |
|
RU2479643C1 |
| METHOD OF PRODUCTION OF THE WIDE HOT-ROLLED STRIPS MADE OUT OF THE HIGH-CARBON STEEL GRADES | 2004 |
|
RU2277128C1 |
| MANUFACTURING METHOD OF BROAD HOT-ROLLED STRIPS | 2007 |
|
RU2356657C2 |
| METHOD OF PRODUCTION OF THE WIDE HOT-ROLLED STEEL STRIPS | 2004 |
|
RU2277129C1 |
| HOT ROLLING METHOD OF LOW ALLOY STEEL IN CONTINUOUS WIDE STRIP ROLLING MILL WITH TWO GROUPS OF COILERS | 2005 |
|
RU2312720C2 |
| MANUFACTURING METHOD OF COLD-ROLLED STRIP FOR HIGH-SPEED COLD BLANKING | 2012 |
|
RU2479642C1 |
