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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <strong>仪器简介：</strong></p><p><p>Parr仪器公司*近研究出一款自动反应系统，该系统可以用来提供处理常用在高温高压氢气精炼中的双金属板样品所需的必要条件，选择一定的测试温度和氢气压力来模拟精炼炉内的实际环境，氢压一般在14�?0 MPa，温度一般在300�?00℃，具体数字取决于精炼炉内的实际情况。这种测试的目的是比较各测试实验室中测得的双金属不锈钢合金对氢致剥离行为的抵抗能力。这个试验过程显示了不锈钢表面焊接处的钢基暴露于高温高压且含气态氢环境下的抗氢致剥离能力。此系统可广泛用于不同的压力、温度、冷却速率，以及可能因氢致剥离产生危害的含氢环境中。这些测试可用于评估材料组成，加工方法，制作工艺及热处理以及氢气分压力、工作温度，冷却速率的效果。这种测试方式在ASTM标准测试G 146中有详细介绍� </p><p> Parr公司研制的这款仪器是由一个高温高压的测试单元（材质：�?25），两个增压泵组成的，其中一个增压泵通氮气，另一个通氢气，一起为测试单元加压。该系统包含了一个备压阀和一系列的压力自动控制阀。该仪器的控制系统（未画出）可以自动用氩气来排出容器内空气，用氮气进行高压检漏，然后对测试的主体部分进行排序。测试的主体部分包括向测试单元内充入氢气，加热容器。之后，容器会按事先设定的速率冷却，如150�?h，直到容器内部温度达�?00℃� 然后会对测试单元进行自动降压、排除反应气体并进一步冷却，以使测试样本能够安全取回。所有重要的测试参数都是可以由用户来自己选择的、�/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 style="padding:10px;">暂无相关方案、�/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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