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style="font-size:16px"><strong>3021酚醛紙層壓板</strong>浸漬紙浸以酚醛樹脂經(jīng)烘干熱壓而成的層壓紙板。本產(chǎn)品適用于對機械性能要求較高的電機電器設(shè)備中作絕緣結(jié)構(gòu)零部件，并可在變壓器油中使用。</span></p><p><span style="font-size:16px"><strong>3021酚醛紙層壓板</strong><span style="font-family:微軟雅黑,arial,helvetica,sans-serif">是由絕緣浸漬紙浸以酚醛樹脂經(jīng)烘干熱壓而成的層壓紙板。本產(chǎn)品適用于對機械性能要求較高的電機電器設(shè)備中作絕緣結(jié)構(gòu)零部件，并可在變壓器油中使用。</span></span></p><p><span style="font-size:16px"><strong></strong><span style="font-family:微軟雅黑,arial,helvetica,sans-serif">2、技術(shù)要求2.1 外觀表面應平整光滑，不允許有氣泡及雜質(zhì)和其他明顯的缺陷，允許有輕微的擦痕，邊緣切割整齊，端面不得有分層和裂紋。</span></span></p><p><span style="font-size:16px"><strong></strong><span style="font-family:微軟雅黑,arial,helvetica,sans-serif">2.2 主要性能指標表1：性能指標序號項目名稱單位試驗方法指標1 密度 g/cm3 GB/T5130中8.1條（1.30～1.40）2 吸水性 mg GB/T5130中8.2條見表23 垂直層向抗彎強度 MPa GB/T5130中5.1條 ≥1204 垂直層向壓縮強度 MPa GB/T5130中5.3條 ≥（250）5 拉伸強度 MPa GB/T5130中5.7條 ≥（100）6 粘合強度 N JB/T8149.1中5.9條（GB/T5130中3章） ≥32007 介電常數(shù) 1MHz - GB/T5130中6.2條 ≥5.58 介質(zhì)損耗因數(shù)1MHz - GB/T5130中6.2條 ≥0.059 平行層向絕緣電阻浸水后 Ω GB/T5130中6.3條 ≥1.0×10710 平行層向擊穿電壓于（90+2）℃變壓器油中 kV GB/T5130中6.1條 ≥2011 垂直層向電氣強度于（90+2）℃變壓器油中 kV/mm GB/T5130中6.1條見表3注：表中垂直層向耐電壓的耐壓值按實際厚度及指標換算。另有技術(shù)要求者，可由供需雙方協(xié)商。表2：吸水性序號吸水性mg 平均厚度mm 吸水性mg 平均厚度mm 吸水性mg0.4 ≤160 2.0 ≤190 10.0 ≤3200.5 ≤162 2.5 ≤195 12.0 ≤3500.6 ≤163 3.0 ≤200 14.0 ≤3900.8 ≤167 4.0 ≤220 16.0 ≤4201.0 ≤170 5.0 ≤235 20.0 ≤4901.2 ≤174 6.0 ≤250 25.0 ≤5701.6 ≤182 8.0 ≤285 單面加工至22.5 ≤684表3：電氣強度平均厚度mm 電氣強度kV/mm 平均厚度mm 電氣強度kV/mm 平均厚度mm 電氣強度kV/mm0.4 ≥15.7 1.0 ≥12.1 2.2 ≥9.00.5 ≥14.7 1.2 ≥11.4 2.4 ≥8.80.6 ≥14.0 1.4 ≥10.7 2.6 ≥8.60.7 ≥13.4 1.6 ≥10.1 2.8 ≥8.50.8 ≥12.9 1.8 ≥9.6 3.0 ≥8.40.9 ≥12.5 2.0 ≥9.3</span></span></p></div> <div id="1571n5fppxr7" class="tagContent" id="tagContent1" style="display: block;"><link rel="stylesheet" type="text/css" href="/css/MessageBoard_style.css"> <script language="javascript" src="/skins/Scripts/order.js?v=20210318" type="text/javascript"></script> <a name="order" id="order"></a> <div id="1571n5fppxr7" class="ly_msg" 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