| 摘要 |
Production of iron-nickel alloy strip from a continuously cast slab or strip includes homogenization treatment to obtain a standard segregation ratio for nickel of less than 0.4%. In the production of a strip of iron-nickel alloy, of composition (by wt.) 25-50% Ni, 50-75% Fe, optionally less than 8% one or more alloying elements (especially Co, Cr, Mo, Mn, Si, V, Ta, Ti and/or Al) and balance impurities, from a continuously cast slab or strip, the above homogenization treatment is carried out. Independent claims are also included for: (i) hot rolled strip of less than 10 mm thickness, produced as described above; (ii) cold rolled strip obtained by cold rolling a hot rolled strip produced as described above; (iii) cold rolled strip produced from a continuously cast iron-nickel alloy having the above composition, the Ni content being 35-37% and the coercive field strength (Hc) of the strip being less than 45 A/m after annealing at 750 deg C for 15 mins.; and (iv) cold rolled strip produced from a continuously cast iron-nickel alloy having the above composition, the Ni content being 32-34%, the Co content being 3.5-6.5% and the coercive field strength (Hc) of the strip being less than 55 A/m after annealing at 750 deg C for 15 mins. |
