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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：1746</span>
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            <p style="text-align:center"><strong><span style="font-family:黑体"><span style="font-size:14.0pt">【</span></span></strong><strong><span style="font-family:黑体"><span style="font-size:14.0pt">注意事项</span></span></strong><strong><span style="font-family:黑体"><span style="font-size:14.0pt">】</span></span></strong></p><ol><li><span style="font-family:宋体">本测试仪是对钢板的局部进行测试，和实际钢厂的出厂标准数据多少有些差异。为了能获取更准确的测试数据，实行多点测试，取其平均值。对于面积较小的样品测试时，采用多片测试取平均值。如图</span>4<span style="font-family:宋体">所示。对同一种样品多次测试时，探头压下时用力应当均匀一致。</span></li><li>&nbsp;</li></ol><p style="margin-left:52.5pt">&nbsp;</p><p style="margin-left:52.5pt"><img alt="" src="http://img52.chem17.com/9/20160307/635929375901067536196.png" style="height:128px; width:539px" /></p><p style="margin-left:52.5pt">&nbsp;</p><p style="margin-left:52.5pt">&nbsp;</p><p style="margin-left:52.5pt; margin-right:0cm"><strong><span style="font-family:宋体">图</span>4 </strong><strong><span style="font-family:宋体">测试探头的位置选择</span></strong></p><ol><li><span style="font-family:宋体">在进行</span>10-20<span style="font-family:宋体">分钟的安定化处理后，再放置探头，经过</span>1-2<span style="font-family:宋体">秒钟后，磁通密度由测试仪内部自动控制即处于安定状态，此时读出的磁通密度为试样每公斤的铁损值。</span></li><li><span style="font-family:宋体">硅钢板的厚度依据钢板的加工，其公称尺寸和实际尺寸多少有差异，用测量仪对钢板厚度和宽度进行测试后，再用</span><strong>Thickness</strong><span style="font-family:宋体">和</span><strong>Width</strong><span style="font-family:宋体">设定其厚度和宽度，可以提高测试的度。</span></li><li><span style="font-family:宋体">在对磁通密度</span>B<span style="font-family:宋体">进行调上、调下的过程中，由于磁滞现象，会出现若干差异。获得正确的磁通密度，应当提起探头后，再置于试样上，此时的磁通密度显示正常值。</span></li><li><span style="font-family:宋体">本测试仪带有自动跟踪测试功能。当探头离开试样一定距离时，自动停止测试。需重新按下测试按钮，再进入测试状态。</span></li><li><span style="font-family:宋体">有关复杂形状的冲压后的成品测试，其测试位置和宽度的计算方法等，详见第六章</span>(3)<span style="font-family:宋体">的说明。</span></li><li><span style="font-family:宋体">【重要提示】</span></li></ol><p style="margin-left:63.0pt"><span style="font-family:宋体">本测试设备为防止过载测试和避免长时间无效工作，以保护仪器的使用寿命，内部设计了自动保护功能。遇到下列中止测试或设定错误时的对应操作方法：</span></p><table border="1" cellpadding="0" cellspacing="0" style="border-collapse:collapse; border:none; margin-left:63.0pt; width:578px"><tbody><tr><td style="width:31px"><p>&nbsp;</p></td><td style="width:228px"><p><span style="font-family:华文中宋">测试中止或设定错误</span></p><p style="text-align:center"><strong><span style="font-family:华文中宋">（铁损值不显示-宽度值出现乱码）</span></strong></p></td><td style="width:319px"><p><span style="font-family:华文中宋">对应操作方法</span></p></td></tr><tr><td style="width:31px"><p style="text-align:center"><strong><span style="font-family:华文中宋">①</span></strong></p></td><td style="width:228px"><p><strong><span style="font-family:华文中宋">所设定的测试试样的宽度、厚度不符合该试样的可测试铁损值（过大或过小）</span></strong></p></td><td style="vertical-align:top; width:319px"><p style="margin-left:10.3pt"><strong><span style="font-family:华文中宋">①再次确认测量并调节试样的实际宽度或厚度，重新按下测试键；</span></strong></p><p style="margin-left:10.3pt"><strong><span style="font-family:华文中宋">②如果还是不能显示铁损值，可连续按住测试键，强行读出铁损值。但时间不宜超</span></strong><strong><span style="font-family:华文中宋">过</span></strong><strong><span style="font-family:arial">5</span></strong><strong><span style="font-family:华文中宋">秒钟。</span></strong></p></td></tr><tr><td style="width:31px"><p style="text-align:center"><strong><span style="font-family:华文中宋">②</span></strong></p></td><td style="vertical-align:top; width:228px"><p><strong><span style="font-family:华文中宋">测试试样和探头未能保持紧密接触</span></strong></p></td><td style="vertical-align:top; width:319px"><p><strong><span style="font-family:华文中宋">重新放好探头位置，再按下测试键。</span></strong></p></td></tr><tr><td style="width:31px"><p style="text-align:center"><strong><span style="font-family:华文中宋">③</span></strong></p></td><td style="vertical-align:top; width:228px"><p><strong><span style="font-family:华文中宋">宽度设</span></strong><strong><span style="font-family:华文中宋">定</span></strong><strong><span style="font-family:arial">&ge;25mm,</span></strong><strong><span style="font-family:华文中宋">宽度显示乱码</span></strong></p></td><td style="vertical-align:top; width:319px"><p><strong><span style="font-family:华文中宋">重新启动（关掉电源后再开机）</span></strong></p></td></tr></tbody></table>
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