Method of manufacturing oriented silicon steel strip in razor-thin
A manufacturing method and technology of oriented silicon steel, applied in the direction of manufacturing tools, metal rolling, metal rolling, etc., can solve the problems affecting the operation rate and hourly output, the silicon steel sheet is brittle, and the magnetic performance is not high, so as to reduce the broken edge and The effect of broken belt phenomenon, large reduction rate and stable magnetic performance
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Embodiment 1
[0019] The 0.3mm thick secondary recrystallized finished oriented silicon steel is used as raw material, and its chemical composition is (mass fraction,%): C0.02, Si3.12, Mn0.12, S0.02, Cu0.01, N0.01, P2 +H 2 (1:3) Annealing at 950°C for 10 minutes in a mixed atmosphere annealing furnace. The magnetic properties of the strips after annealing were measured using ring samples. B 10 At 1.93T, P 15 / 400 =13W / Kg.
Embodiment 2
[0021] The 0.3mm thick secondary recrystallized finished oriented silicon steel is used as raw material, and its chemical composition is (mass fraction,%): C0.01, Si3.10, Mn0.085, S0.03, Cu0.01, N0.001, P0.009, I Fe. After pickling to remove the surface insulation layer, on a four-roll asynchronous cold rolling mill 90mm / 200mm×200mm, cold rolling to 0.08mm by asynchronous speed ratio 1.17 rolling method, and 850 ° C in a pure hydrogen annealing furnace for 20 minutes annealing. The magnetic properties of the strips after annealing were measured using ring samples. B 10 At 1.98T, P 15 / 400 =14W / Kg.
Embodiment 3
[0023] The 0.3mm thick secondary recrystallized finished oriented silicon steel is used as raw material, and its chemical composition is (mass fraction,%): C0.02, Si3.13, Mn0.06, S0.002, Cu0.01, N0.004, P10 At 1.94T, P 15 / 400 = 11W / Kg.
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