摘要:
Single-oriented electrical steel sheets having a high magnetic induction are produced by combining specifically limited conditions in the composition of raw material, the final cold rolling reduction rate and in the secondary recrystallizing annealing.
摘要:
A grain-oriented electrical steel sheet having a very high magnetic induction is obtained by developing secondary recrystallized grains at a specifically limited secondary recrystallization temperature in a cold rolled silicon steel sheet containing substantially no antimony and aluminum and having a specifically limited low nitrogen content.
摘要:
Grain oriented silicon steel sheets having a very low iron loss W.sub.17/50 of lower than 0.90 W/kg, in which Si content is 2-4%, are produced by containing at least one of Se and S in an amount of 0.010-0.035% and at least one of Sb, As, Bi and Sn in an amount of 0.010-0.080% as inhibitor, making a final gauge to be 0.15-0.25 mm, forsterite coating formed on the steel sheet surfaces in the final annealing to be 1-4 g/m.sup.2 per one surface and a secondary crystallized grain size to be 1-6 mm.
摘要翻译:通过含有0.010-0.035的Se和S中的至少一种来生产Si含量为2-4%的铁损W17 / 50低于0.90W / kg的晶粒取向硅钢板 %,Sb,As,Bi和Sn中的至少一种为0.010-0.080%作为抑制剂,最终规格为0.15-0.25mm,最终退火时在钢板表面形成的镁橄榄石涂层为1 每个表面-4g / m 2,二次结晶晶粒尺寸为1-6mm。
摘要:
Grain-oriented silicon steel sheets having a very high magnetic induction and a low iron loss are produced by using a small amount of Mo and Sb and a slight amount of at least one of Se and S as an inhibitor for growing crystal grains.
摘要:
Method of manufacturing a grain oriented silicon steel sheet. An annealing separating agent mainly composed of MgO is coated on a surface of a decarburized silicon steel sheet. The silicon steel sheet is subjected to secondary recrystallization annealing and then purification annealing. The annealing separating agent contains Ti oxide or a Ti compound which can be oxidized by heating. The purification annealing is conducted in steps. A non-oxidizing atmosphere having a high nitrogen concentration is present in one step. A hydrogen atmosphere having a low nitrogen concentration is present in a subsequent step.
摘要:
A method of manufacturing a grain-oriented silicon steel sheet having excellent magnetic properties. In this method, a silicon steel slab containing 2.0-4.5 wt % of Si, 0.02-0.10 wt % of Mn and 0.005-0.06 wt % in total of at least one of S, Se and Al is subjected to such a heat treatment prior to a hot rolling that the slab is heated to a slab center temperature of 900.degree.-1,230.degree. C. in a slab heating furnace of a gas firing type and placed in a slab induction heating furnace before the slab center temperature is less than 900.degree. C. and then held at a slab center temperature of 1,250.degree.-1,380.degree. C. for not less than 10 minutes.