DEVICE FOR HEATING OF STEEL PRODUCTS Russian patent published in 2024 - IPC F27B9/38 C22C19/00 C22C19/05 C22C30/00 F27D3/02 

FIELD: metallurgy.

SUBSTANCE: device (10) for heating steel articles (200), which are blooms or workpieces, comprises heating chamber (13), which is located between inlet (11) and outlet (12), inside which inlet zone (A), intermediate zone (B) and outlet zone (C) are successively defined, wherein inlet zone (A) is made with possibility of heating to maximum temperature of 1000 °C, intermediate zone (B) to maximum temperature of 1100 °C, and outlet zone (C) to maximum temperature of 1150 °C, plane of movement (P) in said heating chamber (13), defined by alternation of fixed support elements (14) and movable support elements (15), resting respectively on fixed bearing elements (16) and movable bearing elements (17), and extraction (18, 20), equipped with corresponding feed and extraction rollers (19, 21), respectively connected to said inlet and outlet (11, 12), heating and/or combustion elements (43) located both above and below said advancement plane (P). Fixed and movable support elements (14, 15), fixed and movable bearing elements (16, 17) and feeding and extraction rollers (19, 21) are made from metal superalloys containing at least a combination of nickel and cobalt in amount of 30% to 60%, and chromium, from 24% to 35%, wherein said superalloy also contains a combination of additional components from 5% to 50%, where said additional components are selected from W, Nb, Ti, C, Si, Al and Mn, wherein fixed and movable support elements (14, 15), fixed and movable bearing elements (16, 17) and feed and extraction rollers (19, 21) are made from different metal superalloys within specified ratios and in accordance with zones (A, B, C) heating chamber (13), in which they are located, to ensure different operating temperatures, wherein content of nickel and chromium in said metal superalloys increases in direction from inlet zone (A) to outlet zone (C), and the cooling system inside heating chamber (13) of device (10) is made without using a liquid.

EFFECT: eliminating the need to use liquid cooling systems and reducing harmful emissions into the atmosphere.

13 cl, 11 dwg