METHOD FOR PREPARING ROLLING ROLLS TO OPERATION

METHOD FOR PREPARING ROLLING ROLLS TO OPERATION

ferrous metallurgy, namely rolling equipment, particularly heat treatment of rolling rolls for relieving residual stresses. SUBSTANCE: rolling rolls are subjected to low-temperature annealing. Method comprises steps of heating rolls up to temperature value T1 = 420-450 C at rate 16-22 C/h; soaking r...

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Bibliographische Detailangaben
Hauptverfasser: CHERNOV P.P, SHVETSOV V.V, SARYCHEV I.S, PIMENOV A.F, SKOROKHODOV V.N, CHEGLOV A.E, BARJATINSKIJ V.P, TISHCHENKO A.D
Format: Patent
Sprache:eng
Schlagworte:
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
ROLLING OF METAL
TRANSPORTING
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Zusammenfassung:ferrous metallurgy, namely rolling equipment, particularly heat treatment of rolling rolls for relieving residual stresses. SUBSTANCE: rolling rolls are subjected to low-temperature annealing. Method comprises steps of heating rolls up to temperature value T1 = 420-450 C at rate 16-22 C/h; soaking rolls at such temperature for 20-40 hours and cooling them until temperature value T2 = 50-70 C at rate 16-22 C/h. EFFECT: enhanced strength of rolling rolls due to relieved residual stresses of rolls without decreasing their rigidity. 1 tbl