FIELD: process engineering.
SUBSTANCE: slab from low-alloy steel with carbon content of 0.14-0.22%, those of silicon of 0.40-0.80% and manganese of 0.80-1.50%, is rolled at hot-rolling broad-strip malls. Preset structural behavior and viscosity are ensured by setting finishing temperature at roughing train subject to strip final thickness to 980-1040°C. Besides, minimum single reduction is regulated in first finishing passes of continuous train depending upon strip final thickness. Hot-rolled strip surface cooling rate in mill interstand space is regulated by mathematical equation.
EFFECT: higher quality of hot-rolled strips for production of tubes and roll-formed sections.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MANUFACTURE OF SPECIALLY THIN HOT-ROLLED STRIPES ON A WIDE-STRIPED MILL OF THE CASTING COMPLEX | 2018 |
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| METHOD FOR HOT ROLLING OF LOW-ALLOYED STEEL | 2007 |
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| HOT ROLLING METHOD OF LOW ALLOY STEEL IN CONTINUOUS WIDE STRIP ROLLING MILL WITH TWO GROUPS OF COILERS | 2005 |
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| PRODUCTION METHOD OF HOT-ROLLED STEEL REELS | 2007 |
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RU2351413C1 |
| METHOD OF PRODUCING TUBE STEEL HOT-ROLLED COILS | 2008 |
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| MANUFACTURING METHOD OF HOT-ROLLED TUBE STEEL COILS | 2008 |
|
RU2373003C1 |
| METHOD OF PRODUCING HOT-ROLLED SHEET STEEL | 2011 |
|
RU2471875C1 |
| METHOD OF STRIP HOT ROLLING | 2009 |
|
RU2445178C2 |
| HOT ROLLED STEEL COILS PRODUCING METHOD | 2004 |
|
RU2268793C1 |
