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    • 6. 发明授权
    • Method for producing electrical steel sheets having a very high magnetic
induction
    • 具有非常高的磁感应的电工钢板的制造方法
    • US3933537A
    • 1976-01-20
    • US418671
    • 1973-11-23
    • Takuichi ImanakaTakahiro Kan
    • Takuichi ImanakaTakahiro Kan
    • C22C38/00C21D8/12C22C38/02H01F1/04
    • C22C38/02C21D8/1272C21D8/1233C21D8/1266
    • Electrical steel sheets having a very high magnetic induction are produced by a method in which an electrical steel raw material is hot rolled and annealed and subjected to at least one cold rolling and to a decarburizing annealing and a final annealing to develop the secondary recrystallized grains of (110) [001] orientation characterized in that the raw material contains less than 4.5% of Si, less than 0.06% of C, 0.005-0.100% of Sb and 0.01-0.05% of Al in the electrical steel raw material prior to the hot rolling, annealing at a temperature of 750.degree. - 1,200.degree.C depending upon the Si content before the final cold rolling, final cold rolling at a reduction rate of 40 - 89% and fully developing the secondary recrystallized grains at a temperature range of 800.degree. - 950.degree.C in the final annealing, are carried out in the above described order.
    • 通过对电工钢原料进行热轧退火,进行至少一次冷轧,脱碳退火和最终退火以形成二次再结晶晶粒的方法制造具有非常高的磁感应的电工钢板 (110)取向,其特征在于,原料中含有小于4.5%的Si,小于0.06%的C,0.005-0.100%的Sb和0.01-0.05%的Al在电工钢原料之前 热轧,在750-1200℃的温度下进行退火,这取决于最终冷轧前的Si含量,以40-89%的还原率进行最终冷轧,并在800℃的温度范围下充分显影二次再结晶晶粒 DEG-950℃在最终退火中按上述顺序进行。