FIELD: technological processes.
SUBSTANCE: compact heat treatment line can contain a short heating zone for fast heating of metal strip to solutionizing temperature using magnetic rotors, such as magnetic rotors with permanent magnets. Fast and efficient annealing zone can be achieved by using magnetic rotors, providing levitation of metal strip inside gas-filled chamber. Magnetic rotors can additionally provide levitation of metal strip in tempering zone and can additionally reheat metal strip before final winding. Magnetic rotors used for heating and / or levitating metal strip can also provide tension control, can facilitate initial filling of metal strip and can harden coatings and / or promote homogeneity of coatings / greases applied on metal strip without overheating.
EFFECT: such a heat treatment line can provide continuous annealing and homogenization in a much more compact space than traditional processing lines.
21 cl, 16 dwg
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