FIELD: rolled stock production, namely manufacture of blanks and rolled merchant bars.
SUBSTANCE: method comprises steps of shaping in rolling rolls at shaping pass three or more equilateral blanks mutually joined by width through bridges; dividing boundary blanks by expanding bridges till their rupture; shaping blanks with side consisting 1.005 - 1.2 of side of blank divided in roll grooved pass in which all grooves are arranged at mutual shift of axes of their contours one opposite to other by normalized value; providing thickness of bridges in range consisting 0.1 - 0.8 of side of divided blank. Boundary blanks are divided one by one in roll grooved pass with single dividing ridge and with two grooves of different normalized width values.
EFFECT: enhanced quality of surface of divided blanks in bridge zone due to stable metal yielding in said zone.
2 cl, 4 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ROLLING METHOD AND MILL FOR PERFORMING THE SAME | 1999 |
|
RU2164177C2 |
| METHOD FOR SLITTING SLABS AT ROLLING | 2000 |
|
RU2179485C2 |
| PROCESS FOR MAKING BLANKS | 1999 |
|
RU2171724C2 |
| METHOD OF PRODUCING BILLETS | 0 |
|
SU820929A1 |
| PROCESS FOR SLITTING SLAB | 1999 |
|
RU2171723C2 |
| METHOD OF MULTIGROOVE ROLLING OF BILLETS | 0 |
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| METHOD OF ROLLING | 0 |
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SU1061860A1 |
| METHOD OF DOUBLE STRAND ROLLING OF REINFORCING STEEL | 2006 |
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RU2327537C2 |
| BAR BILLET ROLLING METHOD | 0 |
|
SU789167A1 |
| GROOVED PASS SYSTEM OF ROLLING MILL ROLLS | 2003 |
|
RU2255819C2 |
