<p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: small;"><span quot;font-family: 宋体;">一、概述</span></span></strong></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-family: 宋体;"><span quot;font-size: small;">本仪器主要测试薄的热导体、固体电绝缘材料、导热硅脂、树脂、橡胶、氧化铍瓷、氧化铝瓷等材料的热阻以及固体界面处的接触热阻和材料的导热系数。检验材料为固态片状，加围框可检验粉状态材料及膏状材料。</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span quot;font-family: 宋体;">仪器参考标准：</span><span lang="EN-US">MIL-I-49456A</span><span quot;font-family: 宋体;">（绝缘片材、导热树脂、热导玻纤增强）；</span><span lang="EN-US">GB 5598-85</span><span quot;font-family: 宋体;">（氧化铍瓷导热系数测定方法）；</span><span lang="EN-US">ASTM D5470-2006</span><span quot;font-family: 宋体;">（薄的热导性固体电绝缘材料传热性能的测试标准）等。</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span quot;font-family: 宋体;">仪器特点：带自动加压，自动测厚装置，并连计算机实现全自动控制。仪器采用</span><span lang="EN-US">6</span><span quot;font-family: 宋体;">点温度梯度检验，提高了测试精度。可检验不同压力下热阻曲线，采用优化的数学模型，可测量材料导热系数和热阻以及界面处接触热阻等多个参数。</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-family: 宋体;"><span quot;font-size: small;">广泛应用在高等院校，科研单位，质检部门和生产厂的材料导热分析检验。</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体;">二、</span> </strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体;">主要参数</span></strong></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">1</span><span quot;font-family: 宋体;">、试样大小：≤Φ</span><span lang="EN-US">30mm</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">2</span><span quot;font-family: 宋体;">、试样厚度：</span><span lang="EN-US">0.02-20mm</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">3</span><span quot;font-family: 宋体;">、热较控温范围：室温</span><span lang="EN-US">-99.99</span><span quot;font-family: 宋体;">℃</span><span lang="EN-US"><span quot;mso-spacerun: yes;">    </span></span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">4</span><span quot;font-family: 宋体;">、冷较控温范围：</span><span lang="EN-US">0-99.0</span><span quot;font-family: 宋体;">℃</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">5</span><span quot;font-family: 宋体;">、导热系数测试范围：</span><span lang="EN-US">0.05</span><span quot;font-family: 宋体;">～</span><span lang="EN-US">45 W/m*k</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">6</span><span quot;font-family: 宋体;">、热阻测试范围：</span><span lang="EN-US">0.05</span><span quot;font-family: 宋体;">～</span><span lang="EN-US">0.000005m2*K/W</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">7</span><span quot;font-family: 宋体;">、压力测量范围：</span><span lang="EN-US">0</span><span quot;font-family: 宋体;">～</span><span lang="EN-US">1000N</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">8</span><span quot;font-family: 宋体;">、位移测量范围：</span><span lang="EN-US">0</span><span quot;font-family: 宋体;">～</span><span lang="EN-US">30.00mm</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">9</span><span quot;font-family: 宋体;">、测试精度：优于</span><span lang="EN-US">3</span><span quot;font-family: 宋体;">％</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">10</span><span quot;font-family: 宋体;">、实验方式：</span><span lang="EN-US">a</span><span quot;font-family: 宋体;">、试样不同压力下热阻测试。</span><span lang="EN-US">b</span><span quot;font-family: 宋体;">、材料导热系数测试。</span><span lang="EN-US">c</span><span quot;font-family: 宋体;">、接触热阻测试。</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: small;"><span lang="EN-US">11</span><span quot;font-family: 宋体;">、计算机全自动测试，并实现数据打印输出。</span></span></p>