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} }); 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>YG-97A型压汞仪主要由真空系� ､样品室系统 ､加压系� ､测量控制系统四部分组成，操作台和计算机相连接，含有汞蒸气的真空管道及样品室系统组装在工作流程柜中进行。操作台和流程柜分别放置在无汞和有汞操作间内，相互隔开，具有严格的汞安全防护措施，有效避免汞蒸气对室内环境的影响，完全保证了操作人员的健康安全、�/p><p>真空系统</p><p>——其主要作用是把样品� ､管道及样品中的空气脱出，形成一定量的负压。此系统主要由一�?XZ-2双级泵和真空传感器组成，极限真空度为0.05Pa：�/p><p>加压系统</p><p>——压力源是由一�?00ml电动柱塞泵提供，为流程提�?-50Mpa�?250psi）压力，可无级调速控制泵速度的快慢及加退压、�/p><p>样品室系绞�/p><p>——主要由样品室､体积计､汞瓶､各类控制阀门等组成，具备耐高压、耐真空的特点，空白值小、测量精度高、稳定性强，样品室体积�?5cc�?*可放置直径�?5mm*长度30mm的块状固体样品（如岩石样品）� 样品室系统各组成部分的连接，主要采用了重力差原理，将样品室的位置提高到比体积计和汞瓶液面高出760mm左右，利用这一高度差，使样品室的压力低于体积计内汞面和汞瓶汞面将近1个大气压，从而达到压力计量全部在正压下进行的目的，克服了国内外其它厂家仪器压力测量在负压（小�?个大气压）下进行而不便利的情况。利用重力差原理，在正压环境下进行压力测量技术，方便、适用，保证了整个试验的连续� ､稳定� ､可靠性和完整性、�/p><p>测量控制系统</p><p>——由压力测量 ､电容测� ､真空测量三部分组成。压力测量由1Mpa�?45psi）和50Mpa�?250psi）两路压力变送器和数字压力表来完成压力的计量。电容测量是由电容仪电容变送器和数字显示器将体积计内液面变化产生电容量变化显示出来。真空测量是由真空硅利用热偶原理实现对样品室内真空度的测量、�/p><p></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 暂无数据� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div class="xgfa_cont"><a href="//www.znpla.com/jingwei/solution_127.html" target="_blank" class="xgfa_cont_img"><img src="//www.znpla.com/img1/img/daily/2020/01/08/163749_093135_solution_10089.jpg"/></a> <div class="xgfa_cont_rig"><a href="//www.znpla.com/jingwei/solution_127.html" target="_blank">精微高博 样品量对真密度测试结果的影响</a> <p class="xgfa_cont_txt">前言真密度是指干燥的试样质量与其真体积的比值（真体积是扣除封闭气孔后的体积）。真密度数值的大小决定于材料组成及纯度，直接影响材料的质量、性能及用途� 传统的真密度测试方法有液体置换法和煮沸法，液体置</p><div class="xgfa_cont_time"> <p>2020-01-08</p></div></div></div><div class="xgfa_cont"><a href="//www.znpla.com/jingwei/solution_903.html" target="_blank" class="xgfa_cont_img"><img src="//www.znpla.com/img1/img/daily/2024/12/06/135202_341896_solution_10089.png"/></a> <div class="xgfa_cont_rig"><a href="//www.znpla.com/jingwei/solution_903.html" target="_blank">MOFs材料：在CO2吸附与捕集方面的实验探究</a> <p class="xgfa_cont_txt">金属-有机骨架（MOFs）材料是一类由无机金属离子与有机配体构筑而成的网格结构晶体，也被称为多孔配位聚合物。目前实验室合成的MOF已经�?0000多种，按类型可以分为网状金属有机框架材料IRMOF、沸</p><div class="xgfa_cont_time"> <span>综合其他</span><p>2024-12-06</p></div></div></div><div class="xgfa_cont"><a href="//www.znpla.com/jingwei/solution_904.html" target="_blank" class="xgfa_cont_img"><img src="//www.znpla.com/img1/img/daily/2024/12/06/135340_091629_solution_10089.png"/></a> <div class="xgfa_cont_rig"><a href="//www.znpla.com/jingwei/solution_904.html" target="_blank">爆炸性粉尘比表面测试的重要�?/a> <p class="xgfa_cont_txt">1. 粉尘爆炸研究背景近年来，我国发生过多起粉尘爆炸事故，造成一定的人员伤亡和经济损失�?010�?月，河北省秦皇岛发生的玉米淀粉粉尘爆炸事故，造成19人死亡�?9人受伤�?011�?月，寋�/p><div class="xgfa_cont_time"> <span>综合其他</span><p>2024-12-06</p></div></div></div><div class="xgfa_cont"><a href="//www.znpla.com/jingwei/solution_905.html" target="_blank" class="xgfa_cont_img"><img src="//www.znpla.com/img1/img/daily/2024/12/07/103234_376802_solution_10089.png"/></a> <div class="xgfa_cont_rig"><a href="//www.znpla.com/jingwei/solution_905.html" target="_blank">氮化硅陶瓷粉体比表面积测试方法探穵�/a> <p class="xgfa_cont_txt">随着科学技术的发展，不同行业对新型材料的需求也日益增加。由于金属材料的自身局限性，在一些领域无法满足工业发展要求，正逐步被结构陶瓷材料所替代。氮化硅陶瓷以其优异的机械性（高硬度、高强度和高韧性）、自�?/p><div class="xgfa_cont_time"> <span>综合其他</span><p>2024-12-06</p></div></div></div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); 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