METHOD OF ANNEALING COLD-ROLLED STRIPS Russian patent published in 2006 - IPC C21D9/48 C21D8/04 

Abstract RU 2280701 C1

FIELD: metallurgy; heat treatment of materials.

SUBSTANCE: proposed method consists in heating the roll at temperature interval of 200-570°C at rate of 80-90°C/h followed by heating to temperature of 640-660°C at rate of 20-30°C and heating at rate of 20-25°C/h to annealing point. Besides that, holding at annealing temperature is set according to the following relationship: τ=(0.8-0.9)M, where τ is holding time, h; M is mass of lower roll in stack, t.

EFFECT: reduced duration of annealing at high mechanical properties and improved quality of cold-strip surfaces.

2 cl, 3 tbl, 1 ex

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RU 2 280 701 C1

Authors

Stepanenko Vladislav Vladimirovich

Pavlov Sergej Igorevich

Gorelik Pavel Borisovich

Isaev Anton Vladimirovich

Bagrakova Nadezhda Pavlinovna

Rosljakova Natalija Evgenievna

Trajno Aleksandr Ivanovich

Dates

2006-07-27Published

2004-12-27Filed