超硬材料堆积密度测定�?参数-价格-中国粉体罐�/title>

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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><strong><span>FT-106B</span></strong><strong><span><strong>超硬材料堆积密度测定�?/strong></span></strong></p><p><strong><span>FT-106B</span></strong><strong><span><strong>超硬材料堆积密度测定�?/strong></span></strong><span>依据行业标准</span><span>JB/T3584-1999<<</span><span>超硬磨料</span><span>堆积密度测定方法</span><span>>></span><span>＋�/span></p><p><span>JB/T 3584-1999</span><span>本标准是寸�/span><span>JB 3584-84</span><span>《超硬磨料堆操作密度测定方法》的修订。本标准非等效采用美国国家标凅�/span><span>ANSI B74.17-1976</span><span>《金刚石磨粒堆积密度的检验方法》。为计算方便将测量筒的体积由</span><span>8mL</span><span>改为</span><span>10mL</span><span>，规格尺寷�/span><span>‛�/span><span>英制</span><span>“�/span><span>改为</span><span>‛�/span><span>公制</span><span>“�/span><span>，其他技术内容未改变、�/span><span>本标准规定了超硬磨料堆积密度测定仪器和测量方法、�/span><span>本标准适用于粒度为</span><span>16/20~325/400</span><span>的人造金刚石和立方氮化硼的堆积密度测定、�/span></p><p><span>适用于检测超硬磨斘�/span><span>16/20-325/400</span><span>磨粒的堆积密度，同时满足检测其他类似颗粒材料的堆积密度</span></p><p><span>一、技术参数：</span></p><p><span>1.</span><span>量筒９�/span><span>10</span><span>��0.2；精度：0.015g �?.外形尺寸�?60mm*160mm*195mm</span></p><p><span>堆积密度、堆积密度系指磨粒在自然堆积的情况下，在空气中单位体积内所含磨粒的质量，单佌�/span><span>g/cm<sup>3</sup></span><span>。方法概要超硬磨料堆积密度测定方法是将消除静电的干燥磨粒，在无振动的情况下，经漏斗流出，通过固定的高度充满一�?/span><span>10 mL</span><span>容积的量筒，并用黄铜刮板刮去余料，计量单位体积的质量、�/span></p><p><strong><span>二、试验要汁�/span></strong><span>实验应在以下大气条件下进行：</span></p><p><span> 1.</span><span>相对湿度９�/span><span>45%~55%</span><span>：�/span></p><p><span> 2.</span><span>温度９�/span><span>20~24</span><span>℃、�/span></p><p><strong><span>3.</span></strong><span>试样的制备：将符吇�/span><span>?GB/T?6406</span><span>的待测试料按</span><span>JB/T?3914?</span><span>规定的方法取样，缩分�?/span><span>25 g</span><span>��</span><span>0.1 g</span><span>，装入约</span><span>30 mL</span><span>的镍坩埚中，�?/span><span>110</span><span>�?#177;</span><span>5</span><span>℃的烘箱中烘幱�/span><span>1 h</span><span>，取出，置于干燥器中冷却至少</span><span>4 h</span><span>，使其适应实验室的气氛并消除静电、�/span></p><p><strong><span>4.</span></strong><span>预备一张坚固防振的工作台，台面要水平，并铺三�/span><span>5 mm</span><span>厚的橡胶板或软塑料板、�/span></p><p><strong><span>三�?/span></strong><span>仪器由以下主要部件构成：</span></p><p><span>漏斗材质：黄铜；漏斗顶部内径９�/span><span>57.1 mm</span><span>��</span><span>0.01 mm</span><span>；锥部高度：</span><span>41.3 mm</span></p><p><span>导出的锥部角度：</span><span>63</span><span>��</span><span>��</span><span>10</span><span>′；漏斗颈内径：</span><span>6.4 mm</span><span>��</span><span>0.03 mm</span><span>；漏斗颈长度９�/span><span>6.4 mm</span><span>��</span><span>0.03 mm</span></p><p><strong><span>四�?/span></strong><span>漏斗锁闭装置</span></p><p><span>以一个直径为</span><span>19 mm</span><span>的橡皮球，用两根弹簧固定在漏斗颈的下端出口处，不允许有颗粒漏下、�/span></p><p><strong><span>1.</span></strong><span>漏斗颈下端至测量筒口的距离为</span><span>61.9 mm</span><span>��</span><span>0.1mm</span><span>、�/span></p><p><strong><span>五�?/span></strong><span>测量筑�/span></p><p><span>材质：黄铛�/span></p><p><span>内径９�/span><span>19.3 mm</span><span>��</span><span>0.01 mm</span></p><p><span>内部深度９�/span><span>34.2 mm</span><span>��</span><span>0.02 mm</span></p><p><span>容积：约</span><span>10 mL</span></p><p><strong><span>六�?/span></strong><span>刮板：刮板工作面的棱角应平整，其平直度在每毫米长度内应小亍�/span><span>0.1 mm</span></p><p><strong><span>七、允许偏差：</span></strong><strong><span>16/20~325/400</span></strong><strong><span>粒度的试样，三次测定的堆积密度值允许偏差不应大亍�/span></strong><strong><span>0.015 g/cm<sup>3</sup></span></strong></p><p><strong></strong></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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