60−0.3L≦θ≦60 when L≦100; 40−0.1L≦θ≦60 when 100L≦400; θ≦60 when L400."/>
DEVICE TO IMPROVE IRON LOSS PROPERTIES OF GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR IMPROVING IRON LOSS PROPERTIES OF GRAIN ORIENTED ELECTRICAL STEEL SHEET
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DEVICE TO IMPROVE IRON LOSS PROPERTIES OF GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR IMPROVING IRON LOSS PROPERTIES OF GRAIN ORIENTED ELECTRICAL STEEL SHEET
DEVICE TO IMPROVE IRON LOSS PROPERTIES OF GRAIN ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR IMPROVING IRON LOSS PROPERTIES OF GRAIN ORIENTED ELECTRICAL STEEL SHEET
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机译：改善取向电工钢片的铁损性能的装置和改善取向电工钢片的铁损性能的方法
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摘要
A device reduces dust for safely preventing laser-irradiation capacity from decreasing due to contamination and reliably reducing iron loss of a grain oriented electrical steel sheet. The device improves iron loss properties of a grain oriented electrical steel sheet by irradiating its surface with laser to reduce iron loss, wherein, distance between a laser beam emission port and a laser irradiation point is L (mm); laser irradiation angle formed by a line linking the emission port and the irradiation point with respect to a direction vertical to the sheet is θ (°); and L≧50, the emission port is positioned such that L and θ satisfy:; 60−0.3L≦θ≦60 when L≦100; 40−0.1L≦θ≦60 when 100L≦400; θ≦60 when L400.
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机译：该装置减少了灰尘，以安全地防止由于污染引起的激光辐照能力降低，并可靠地减少了取向电磁钢板的铁损。该装置通过用激光照射其表面以降低铁损来改善晶粒取向电磁钢板的铁损性能，其中，激光束发射口与激光照射点之间的距离为L（mm）;相对于与片材垂直的方向，由连结出射口和照射点的线形成的激光照射角为θ（°）。当L≥50时，排出口的位置使得L和θ满足： <？in-line-formulae description =“在线表达式” end =“ lead”？> 60-0.3 L ≤θ≤60，当L≤100<？in-line-formulae description = “在线公式” end =“ tail”？>; <？in-line-formulae description =“在线表达式” end =“ lead”？> 40-0.1 L≤θ≤60，当100 <？in-line-Formulae description =“ In-line Formulae” end =“ tail”？>; <？in-line-formulae description =“在线表达式” end =“ lead”？>θ≦60，当L> 400时。<？in-line-formulae description =“在线表达式” end =“ tail” ？>
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