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UNIDITIONAL ELECTROMAGNETIC STAFF WITH PRESENTING FILM AND MAGNETICAL PROPERTIES, MANUFACTURING PROCEDURES AND THEIR COAL-CONTROL CONFIGURATION
UNIDITIONAL ELECTROMAGNETIC STAFF WITH PRESENTING FILM AND MAGNETICAL PROPERTIES, MANUFACTURING PROCEDURES AND THEIR COAL-CONTROL CONFIGURATION
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机译:具有表示膜和磁性能的单层电磁人员,制造程序及其煤控制结构
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摘要
The present invention provides a grain-oriented electrical steel sheet excellent in film characteristics and iron loss characteristics, a process for producing the same and a decarburization annealing facility used for the process. The grain-oriented electrical steel sheet comprises up to 0.005% of C, 2.0 to 7.0% of Si in terms of weight % and the balance Fe and unavoidable impurities, has an oxide film which mainly contains forsterite and is formed on the surface, and an insulating coating formed on the oxide film, wherein the amount of the oxide film is from 1 to 4 g/m2 per side, the peak intensity of Si obtained by glow discharge spectral analysis (GDS analysis) from the oxide film surface is at least 1/2 of that of Al, and the depth of the peak position of Si from the oxide film surface is up to 1/10 of the depth of that of Al, and shows a ratio y (%) with which peeling of the oxide film does not take place when subjected to a bending test with a curvature of 20 mm, and core loss characteristics W (W/kg) satisfying the following formulas, respectively: MATH wherein t represents a sheet thickness in terms of mm, MATH wherein t represents a sheet thickness in terms of mm. IMAGE
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机译:本发明提供一种膜特性和铁损特性优异的方向性电磁钢板及其制造方法以及用于该方法的脱碳退火设备。以重量%计,所述方向性电磁钢板包含最多0.005%的C,2.0%至7.0%的Si和余量的Fe和不可避免的杂质,其表面形成有主要包含镁橄榄石的氧化膜,并且在氧化膜上形成的绝缘涂层,其中氧化膜的量为每侧1-4g / m 2,通过辉光放电光谱分析(GDS分析)从氧化膜表面获得的Si的峰值强度至少是Al的1/2,并且Si从氧化物膜表面的峰位置的深度高达Al的深度的1/10,并且显示出剥离的比率y(%)。当经受曲率为20 mm的弯曲试验时,氧化膜不会发生氧化,并且铁损特性W(W / kg)分别满足以下公式:展开▼