| 产地 | 河北定州 |
| 品牌 | 海韵牌 |
| 型号 | BT-7038 |
海韵牌BT-7038型低温装置绝热用膨胀珍珠岩Chaton brand BT-7038 type cryogenic device adiabatic with expansive pearlite执行标准： JC/T 1020-2007Execution standard: JC/T 1020-2007 用于空气分离设备冷箱、低温液体容器及其他低温装置绝热用膨胀珍珠岩。其使用温度范围为 77K- 常温（ -196℃ - 常温）。执行标准： JC/T 1020-2007 Used in air separation equipment box, cryogenic liquid co
ntainers and other cryogenic device adiabatic with expansive pearlite. Its use temperature scope for 77K- normal temperature ( -196℃ - normal temperature). Execution standard: JC/T 1020-2007 安息角Rest Angle 表征膨胀珍珠岩流动性的指标，流动性越好，越容易充满填充空间。流动性用自然倾角，即用水平面与撒在该水平面上的粉末所形成的圆锥体表面之间的夹角来表示。 Characterization of expansive pearlite liquidity index, liquidity more better, more easily filled with filling space. Liquidity by natural inclination, namely rephrases in the horizo
ntal plane and a horizo
ntal plane and the powder surface by the formation of the cone Angle between prond. 振实密度Vibration compaction density 检验膨胀珍珠岩颗粒强度的指标，颗粒强度高，振实密度**小，颗粒强度低，振实密度**大。 Inspection expanded perlite granule's strength index, particle high intensity, vibration compaction density is small, particle of low intensity, and vibration compaction density is big.膨胀珍珠岩的物理性能Of expansive pearlite physical properties
| 序号 | 项 目 | 技术要求 |
| CEP 50 | CEP 60 |
| 1 | 体积密度/kg/m 3 | ≤ 50 | ＞50~ ≤ 60 |
| 2 | 振实密度/kg/m 3 | ≤ 65 | ≤ 75 |
| 3 | 粒 度 | 1mm筛孔筛余量/% | ≤ 8 | ≤ 10 |
| 0.15mm筛孔通过量/% |
| 4 | 质量含水率/% | ≤ 0.5 |
| 5 | 安息角 | ≤ 37 ° |
| 6 | 导热系数（热面温度293K，冷面温度77K时的平均值）W/( m · K) | ≤ 0.023 | ≤ 0.025 |
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