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            <span><img src="/skins/158899/images/date01.png" />更新时间：2018-03-21</span><span><img src="/skins/158899/images/hit.png" />点击次数：2049</span>
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            <p style="text-align:center"><strong><span style="font-size:18px"><span style="font-family:宋体">硅钢牌号通过铁损测量的一些介绍</span></span></strong></p><p><span style="font-family:宋体">&nbsp; &nbsp;宁波旗辰仪器有限公司专业销售硅钢片铁损测试仪，型号包括有：IR-3S铁损测试仪,SK-DAC-2C铁损测试仪,ATS-100M铁损测试仪,ATS-200M铁损测试仪。欢迎新老客户！</span></p><p><span style="font-family:宋体">&nbsp; &nbsp;硅钢可分为热轧硅钢和冷轧硅钢，热轧硅钢由于其可利用率低，能量损耗大，被逐渐淘汰。冷轧硅钢由于其技术含量高、损耗低，是未来发展的重点。冷轧硅钢分为：冷轧取向硅钢和冷轧无取向硅钢。</span></p><p><span style="font-family:宋体">&nbsp; &nbsp;冷轧取向硅钢zui主要的用途是用于变压器制造，所以又称冷轧变压器硅钢。取向硅钢中的</span>HiB<span style="font-family:宋体">钢称为高磁感冷轧取向硅钢，由于其良好的磁导性、低损耗的特点，主要用于电信与仪表工业中的各种高压变压器、扼流圈等电磁元件的制造中。无取向硅钢主要用于发电机制造中。</span>&nbsp;</p><p><span style="font-family:宋体">&nbsp; &nbsp;取向硅钢zui重要的两个指标是：磁感和单位损耗值。磁感越高，意味着磁导性越强，铁芯的体积可以越小，铁损和铜损都会降低，同时可以节省材料用量降低总成本。单位损耗值越低，就越可以用于大型变压器。不用型号的取向硅钢由于磁感和损耗等指标不同，因而可以适用于不同电压等级、不同类型的变压器。</span></p><p><span style="font-family:宋体">&nbsp; &nbsp;如武钢生产的</span>&nbsp;30Q130&nbsp;<span style="font-family:宋体">牌号的取向硅钢，其厚度为</span>&nbsp;0.30mm<span style="font-family:宋体">，标准状况下（</span>800A/m&nbsp;<span style="font-family:宋体">交变磁场，频率</span>&nbsp;50Hz<span style="font-family:宋体">）磁感为</span>&nbsp;1.83T<span style="font-family:宋体">，标准状况下（磁感为</span>&nbsp;1.7T<span style="font-family:宋体">，频率</span>&nbsp;50Hz<span style="font-family:宋体">）铁损值为</span>1.3W/kg<span style="font-family:宋体">。一般的</span>&nbsp;130&nbsp;<span style="font-family:宋体">及以下牌号的取向硅钢主要适用于</span>&nbsp;110kV&nbsp;<span style="font-family:宋体">及以下电压等级的变器，</span>120&nbsp;<span style="font-family:宋体">牌号（如</span>&nbsp;30Q120<span style="font-family:宋体">、</span>27Q120<span style="font-family:宋体">）可用于</span>&nbsp;220kV&nbsp;<span style="font-family:宋体">的变压器，而</span>&nbsp;110&nbsp;<span style="font-family:宋体">及以上牌号的取向硅钢可用于</span>&nbsp;500kV&nbsp;<span style="font-family:宋体">和更高电压等级的变压器。</span>&nbsp;</p><p><span style="font-family:宋体">高磁感取向硅钢（</span>HiB&nbsp;<span style="font-family:宋体">钢）磁化特性优良，标准状况下磁感约为</span>&nbsp;1.92T<span style="font-family:宋体">，而普通取向硅钢为</span>&nbsp;1.82T<span style="font-family:宋体">，能有效降低变压器的损耗。</span>&nbsp;<span style="font-family:宋体">（</span>HiB<span style="font-family:宋体">钢）由于其低损耗性、高传导性主要应用于高压变压器，我国电网建设未来将需求更多的高压变压器，更多地采用损耗低的高压变压器也将是变压器市场未来的趋势。</span></p><p>&nbsp;</p><p>1<span style="font-family:宋体">、中国牌号表示方法：</span>&nbsp;</p><p>　　(1)<span style="font-family:宋体">冷轧无取向硅钢带</span>(<span style="font-family:宋体">片</span>)<span style="font-family:宋体">表示方法：</span>DW+<span style="font-family:宋体">铁损值</span>(<span style="font-family:宋体">在频率为</span>50HZ<span style="font-family:宋体">，波形为正弦的磁感峰值为</span>1.5T<span style="font-family:宋体">的单位重量铁损值。</span>)<span style="font-family:宋体">的</span>100<span style="font-family:宋体">倍</span>+<span style="font-family:宋体">厚度值的</span>100<span style="font-family:宋体">倍。如</span>DW470-50<span style="font-family:宋体">表示铁损值为</span>4.7w/kg<span style="font-family:宋体">，厚度为</span>0.5mm<span style="font-family:宋体">的冷轧无取向硅钢，现新型号表示为</span>50W470<span style="font-family:宋体">。</span></p><p>　　(2)<span style="font-family:宋体">冷轧取向硅钢带</span>(<span style="font-family:宋体">片</span>)<span style="font-family:宋体">表示方法：</span>DQ+<span style="font-family:宋体">铁损值</span>(<span style="font-family:宋体">在频率为</span>50HZ<span style="font-family:宋体">，波形为正弦的磁感峰值为</span>1.7T<span style="font-family:宋体">的单位重量铁损值。</span>)<span style="font-family:宋体">的</span>100<span style="font-family:宋体">倍</span>+<span style="font-family:宋体">厚度值的</span>100<span style="font-family:宋体">倍。有时铁损值后加</span>G<span style="font-family:宋体">表示高磁感。如</span>DQ133-30<span style="font-family:宋体">表示铁损值为</span>1.33<span style="font-family:宋体">，厚度为</span>0.3mm<span style="font-family:宋体">的冷轧取向硅钢带</span>(<span style="font-family:宋体">片</span>)<span style="font-family:宋体">，现新型号表示为</span>30Q133<span style="font-family:宋体">。</span></p><p>　　(3)<span style="font-family:宋体">热轧硅钢板热轧硅钢板用</span>DR<span style="font-family:宋体">表示，按硅含量的多少分成低硅钢</span>(<span style="font-family:宋体">含硅量&le;</span>2.8%)<span style="font-family:宋体">、高硅钢</span>(<span style="font-family:宋体">含硅量＞</span>2.8%)<span style="font-family:宋体">。表示方法：</span>DR+<span style="font-family:宋体">铁损值</span>(<span style="font-family:宋体">用</span>50HZ<span style="font-family:宋体">反复磁化和按正弦形变化的磁感应强度zui大值为</span>1.5T<span style="font-family:宋体">时的单位重量铁损值</span>)<span style="font-family:宋体">的</span>100<span style="font-family:宋体">倍</span>+<span style="font-family:宋体">厚度值的</span>100<span style="font-family:宋体">倍。如</span>DR510-50<span style="font-family:宋体">表示铁损值为</span>5.1<span style="font-family:宋体">，厚度为</span>0.5mm<span style="font-family:宋体">的热轧硅钢板。家用电器用热轧硅钢薄板的牌号用</span>JDR+<span style="font-family:宋体">铁损值</span>+<span style="font-family:宋体">厚度值来表示，如</span>JDR540-50<span style="font-family:宋体">。</span></p><p>　　2<span style="font-family:宋体">、日本牌号表示方法：</span></p><p>　　(1)<span style="font-family:宋体">冷轧无取向硅钢带由公称厚度</span>(<span style="font-family:宋体">扩大</span>100<span style="font-family:宋体">倍的值</span>)+<span style="font-family:宋体">代号</span>A+<span style="font-family:宋体">铁损保证值</span>(<span style="font-family:宋体">将频率</span>50HZ<span style="font-family:宋体">，zui大磁通密度为</span>1.5T<span style="font-family:宋体">时的铁损值扩大</span>100<span style="font-family:宋体">倍后的值</span>)<span style="font-family:宋体">。如</span>50A470<span style="font-family:宋体">表示厚度为</span>0.5mm<span style="font-family:宋体">，铁损保证值为&le;</span>4.7<span style="font-family:宋体">的冷轧无取向硅钢带。</span></p><p>(2)<span style="font-family:宋体">冷轧取向硅钢带由公称厚度</span>(<span style="font-family:宋体">扩大</span>100<span style="font-family:宋体">倍的值</span>)+<span style="font-family:宋体">代号</span>G<span style="font-family:宋体">：表示普通材料，</span>P<span style="font-family:宋体">：表示高取向性材料</span>+<span style="font-family:宋体">铁损保证值</span>(<span style="font-family:宋体">将频率</span>50HZ<span style="font-family:宋体">，zui大磁通密度为</span>1.7T<span style="font-family:宋体">时的铁损值扩大</span>100<span style="font-family:宋体">倍后的值</span>)<span style="font-family:宋体">。如</span>30G130<span style="font-family:宋体">表示厚度为</span>0.3mm<span style="font-family:宋体">，铁损保证值为&le;</span>1.3<span style="font-family:宋体">的冷轧取向硅钢带。</span>&nbsp;</p><p>3<span style="font-family:宋体">、美国牌号有</span></p><p>M15_24G,M15_26G,M19_24G,M19_26G,M19_29,M22_24G,M22_26G,M22_29G<span style="font-family:宋体">等等，这些牌号都是美国标准。与国产牌号的对比具体请见附件文档国内外冷轧无取向硅钢牌号对照表</span>.pdf<span style="font-family:宋体">。</span></p><p><span style="font-family:宋体">另外说明一下，电机用硅钢是各向异性的无取向硅钢，和变压器选用的各向同性取向钢不同。</span></p><p><span style="font-family:宋体">还有纯铁牌号</span>steel_1008<span style="font-family:宋体">，</span>steel_1010<span style="font-family:宋体">可用，对于鼠笼铸铝转子可以选用</span>cast_aluminum_75C<span style="font-family:宋体">。</span></p><p><span style="font-family:宋体">我国取向硅钢（武钢）相关生产设备和技术是于</span>&nbsp;1974&nbsp;<span style="font-family:宋体">年从新日铁（</span>NIPPON<span style="font-family:宋体">）</span>&nbsp;<span style="font-family:宋体">引进，</span>&nbsp;<span style="font-family:宋体">设计产量</span>2.8<span style="font-family:宋体">万吨，</span>&nbsp;<span style="font-family:宋体">其中一般取向硅钢有</span>0.35&nbsp;mm<span style="font-family:宋体">、</span>&nbsp;0.30mm<span style="font-family:宋体">、</span>0.28mm&nbsp;<span style="font-family:宋体">三个规格</span>&nbsp;8<span style="font-family:宋体">个牌号；高磁感取向硅钢（</span>HiB<span style="font-family:宋体">钢）有</span>&nbsp;0.35mm<span style="font-family:宋体">、</span>0.30mm<span style="font-family:宋体">两个规格</span>&nbsp;2&nbsp;<span style="font-family:宋体">个牌号。虽然经过近</span>&nbsp;30&nbsp;<span style="font-family:宋体">年的发展，我国取向硅钢取得了长足的进步，但距离发达国家在产品质量水平和品种丰富程度和产品占比上仍有很大差距，目前产品对外依存度依然超过</span>&nbsp;50%<span style="font-family:宋体">，</span>09&nbsp;<span style="font-family:宋体">年随着武钢取向的扩产和宝钢取向正式向市场销售，对外依存度会有所改善。</span></p>
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