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}else{ $(".fixdbox").css({"display":"none"}); } $(".fixdbox_main_left div").css({"color":"#4F5862","border-bottom-color":"transparent"}); if($(this).scrollTop()>=_wsj){ $(".fixdbox_main_left div").eq(6).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_gsdt){ $(".fixdbox_main_left div").eq(5).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_yhpl){ $(".fixdbox_main_left div").eq(4).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_xgzl){ $(".fixdbox_main_left div").eq(3).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_xgfa){ $(".fixdbox_main_left div").eq(2).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_cxd){ $(".fixdbox_main_left div").eq(1).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_cpjj){ $(".fixdbox_main_left div").eq(0).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); } }); function showliuyan(me, showtype){ if(showtype==0){ //$("#Content").val($("#Content").attr('placeholder')); Content= document.getElementById('PopMsgFrom').Content.getAttribute('placeholder'); document.getElementById('PopMsgFrom').Content.value=Content; } if(showtype==1){ // $("#Content").val($(me).text()); alert($(me).text()); document.getElementById('PopMsgFrom').Content.value=$(me).text(); } $(".fxp").css("display","flex"); } function close_popwin(){ $(".fxp").css("display","none"); // 关闭虚拟电话后的留言� $(".dhxj").css("display","none"); $(".dhxjbox").css("display", "none"); $(".dhxjbox2").css("display", "none"); return false; } </script>  <div class="cpjs"> <div class="cpjs_tab"> <div class="js_cpjj" style="border-bottom: 3px solid #1479d7; color: #1479d7;">产品介绍</div> <div class="js_cxd">创新炸�/div> <div class="js_xgfa">相关方案</div> <div class="js_xgzl">相关资料</div> <div class="js_yhpl">用户评论</div> <div class="js_gsdt">公司动�?/div> <div class="js_wsj">问商宵�/div> </div> <script> $(function(){ // 切换 $(".cpjs_tab a").click(function(){ $(".cpjs_tab a").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><strong> 简支梁冲击试验朹�/strong>为数显冲击试验机主要用于硬质塑料、增强尼龙、玻璃钢、陶瓷，铸石、电绝缘材料等非金属材料冲击韧性的测定。是化工行业、科研单位、大专院校，质量检测等部门理想的测试设备� </p><p><strong>简支梁冲击试验朹�/strong>技术参�?strong>９�/strong></p><p>1� 冲击速度� 3.8m/s</p><p>2� 摆锤能量� 7.5J�?5J�?5J�?0J</p><p>3� 摆锤力矩� Pd7.5=4.01924Nm</p><p> Pd15�?.03848Nm</p><p> Pd25=13.39746Nm</p><p> Pd50�?6.79492Nm</p><p>4� 打击中心距： 395mm</p><p>5� 摆锤扬角� 150��</p><p>6� 刀刃圆角半径： R=2��0.5mm</p><p>7� 钳口圆角半径� R=1��0.1mm</p><p>8� 冲击刀刃夹角： 30��l��</p><p>9� 摆锤空冲击能量损失： 0.5%</p><p>10、钳口间距： 60mm� 70mm�?5mm</p><p>11、使用温度：15�?35ℂ�/p><p>12、电 源：AC220V �?0Hz</p><p>13、数显示*小指示值：5J以上0.01J</p><p>14、数显示冲击机具有角度自识别功能，能量损失自动补偿，精度高的特点、�/p><p>15、试样类型表９�/p><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td>试样类型</td><td>长L(mm)</td><td>宽b(mm)</td><td>厚h(mm)</td><td>支撑线间距离</td></tr><tr><td>1</td><td>80��2</td><td>10.0��0.5</td><td>4��0.2</td><td>60</td></tr><tr><td>2</td><td>50��1</td><td>6��0.2</td><td>4��0.2</td><td>40</td></tr><tr><td>3</td><td>120��2</td><td>15��0.5</td><td>10��0.5</td><td>70</td></tr><tr><td>4</td><td>125��2</td><td>13��0.5</td><td>13��0.5</td><td>95</td></tr></tbody></table><p>16、试样缺口：</p><p>A型缺� 45���1�� 缺口底部半径R=0.25��0.05mm</p><p>B型缺� 45���1�� 缺口底部半径R=1��0.05mm</p><p>C型缺�? 2��0.2 直角缺口</p><p>C型缺�? 0.8��0.1 直角缺口</p><p></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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