FIELD: metallurgy.
SUBSTANCE: method includes blanks heating, multipass roughing and finish rolling on thick-leaved reversing mill with subcooling of roll on air before finish rolling and candies cooling. Required factors of candies mechanical properties at ability of simultaneous receiving of commercial sheet from stub ends of candies are provided ensured by before heating blank is manufactured by slab cutting with allowance for cutting, with allowance definition subject to receiving of additional pair of Blanks heating is implemented till the temperature not lower the 950°C, rolls are subcooled till the temperature 720-760°C, finish rolling is implemented with total clamping no less than 65% and it is finished at the temperature 680-710°C, with candies cooling implementation by water till the temperature 580-610°C.
EFFECT: reduction of steel discharge coefficient on thick-leaved reversing mills at regulated candies rolling.
1 ex, 2 tbl
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| PROCEDURE FOR PRODUCTION OF HEAVY PLATE LOW ALLOYED ROLLED STEEL | 2009 |
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