FIELD: technological processes, metal working.
SUBSTANCE: method includes supply of billets into primary scale breaker after their heating in continuous furnace, loosening of oxide layers and removal of furnace scale by hydraulic washout, rolling in roughing and finishing mill stands. Protection of breakdown from secondary oxidation by ambient air and working tool (rollers) from sticking of rolled metal particles and scale is provided by the fact that in process of hot rolling protective coat is applied onto breakdown surface by means of its supply into roll throat between upper roller and upper surface of breakdown and lower roller and lower surface of breakdown.
EFFECT: improved quality of rolled metal surface and extended durability of forming rolls.
1 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| STRIP HOT ROLLING METHOD | 2004 |
|
RU2279937C1 |
| METHOD OF ROLLING STEELS WITH INCREASED SCALE FORMATION | 0 |
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|
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| METHOD OF PRODUCING PIG IRON, STEEL, BLANKS AND ARTICLES FROM THEM WITH USE OF BLAST-FURNACE, STEEL-MELTING AND ROLLING PROCESSES AT METALLURGICAL ENTERPRISE | 1998 |
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| METHOD OF HOT-DEFORMED ARTICLES PRODUCING | 2015 |
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| WIDE STRIP HOT ROLLING MILL | 0 |
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| METHOD OF HOT ROLLING AT SHEET MILL | 2012 |
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RU2487768C1 |
| METHOD FOR HOT ROLLING OF ELECTRICAL ANISOTROPIC STEEL | 1999 |
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RU2166386C2 |
