| 摘要 |
FIELD: devices for heat treatment of strips in coils. SUBSTANCE: furnace has heating hood, muffle, stand with fan, bottom plate, convection rings. Convection ring installed at coil bottom found at the half of stack is made with a definite ratio of total area of cross-section of channels to convection rings installed over height of coil stack. EFFECT: higher productivity of furnace, and increased quality of rolled products, and savings in energy carriers. 1 dwg , 1 tblo
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