2) Gas permeability
气体渗透
1.
Study on gas permeability of the unsaturated bentonites;
不饱和膨润土中气体渗透研究
2.
The function of water on α-cellulose membrane was also revealed by comparatively studying the gas permeability of cellulose acetate membrane, benzoylated cellulose membrane and polysulfone membrane in "dry" and "wet" state.
测定了水溶胀下 ,CO2 、H2 、CH4 、N2 、O2 等气体在α 纤维素膜内的气体渗透速率 。
3.
Composite membranes,consisting of zeolite Y and polysulfone polymer,were prepared,and gas permeability through both zeolite Y filled polysulfone and unblended polysulfone membranes were measured.
与此相对应，膜的气体渗透特性也发生突变。
3) gas carburizing
气体渗碳
1.
Based on the experimental results of adding RE to gas carburizing in routine temperature(920～930 ℃),the RE carburizing process model in the routine temperature is put forward.
基于常规温度(920~930℃)下气体渗碳进行优化加入稀土元素的试验结果,提出常规温度下稀土渗碳的工艺模型,用通用有限元分析AD INAT程序进行了数值模拟,取得了较满意的结果。
2.
The factors which affect gas carburizing quality of die & mold steel are analyzed, and ten kinds of usual defects are stressed mainly,as well as the improvement steps are provided.
分析了影响模具钢气体渗碳质量的因素,重点对其10种常见缺陷进行了分析,并提出了改善措施。
3.
In the paper,the author presents the principle of computer control on gas carburizing with great attention on the improvement of control accuray of carbon potential.
介绍计算机控制气体渗碳的原理 ,重点阐述怎样提高碳势控制精度。
4) gas permeance
气体渗透
1.
The defects and modification of ZSM-5 zeolite membrane, as well as the characterization of ZSM-5 zeolite membranes with XRD、SEM、TEM and single gas permeance measurements are summarized.
本文分析了ZSM-5分子筛膜的主要合成方法和研究现状,总结了ZSM-5分子筛膜的缺陷与修饰方法,指出了ZSM-5分子筛膜的表征手段是以XRD、SEM、TEM和单组分气体渗透等为主,对ZSM-5分子筛膜的应用和前景进行了展望。
5) gas nitriding
气体渗氮
1.
Study on gas nitriding process of GH4169 alloy
GH4169合金气体渗氮工艺研究
2.
CrMoAlA and 40Cr steels were modified through gas nitriding,gas nitrocarburizing and plasma nitriding processes.
研究了 38CrMoAlA和 4 0Cr钢经气体渗氮、气体氮碳共渗、离子渗氮处理后渗氮层的组织、硬度、摩擦磨损和腐蚀性能。
3.
The paper makes a primary approach to a two big problems on the long period and the heavy brittleness resulting from gas nitriding process.
针对气体渗氮工艺存在的周期长和脆性大两个问题进行了初步的探讨。
6) gas permeation
气体渗透
1.
It is analyzed that the principles of gas permeation through porous membrane and the relationship between the permeability of gas and the structure of hydrophobic porous membrane.
理论分析了疏水性多孔膜气体渗透原理和膜各种结构特征参数的关系,并建立了计算气体渗透通量的模型方程,以及确定多孔膜曲折因子等结构参数的方法。
2.
The gas permeation (GP) experiments were conducted with the pressure difference between the two sides of the membrane ranging from 10 to 100 kPa, and it was found that with the increase of pressure difference, the employed membranes show smaller membrane pore size and larger ε/τδ values.
针对两种聚四氟乙烯膜在膜两侧压差为10~100kPa范围内进行了气体渗透实验,结果表明:实验用膜具有一定的可压缩性,随膜两侧压差的增大,膜孔径r减小,而膜孔隙率与有效厚度的比值ε/τδ是增大的,且其变化幅度随膜厚度的增大而增大。
3.
The new methods were established that structure parameters of asymmetric membranes and composite membranes were determined by measuring gas permeability according to the mathematical models for correlations between the membrane structure parameters and gas permeation.
根据非对称膜及其复合膜与气体渗透之间关系的数学模型，建立了通过测定气体渗透率确定膜结构参数的计算方法，并建立了相应的电算软件。
补充资料：气体渗透
分子式：
CAS号：
性质：气体在压力作用下通过膜的过程。气体渗透过程一般用气体在膜内溶解和扩散的机理描述。混合气体中不同的组分在膜内溶解和扩散的性能不同，即渗透速率不同，利用这个特点可以用气体渗透膜来实现气体的分离，如空气中氧与氮的分离，由合成氨弛放气中回收氢气等。
CAS号：
性质：气体在压力作用下通过膜的过程。气体渗透过程一般用气体在膜内溶解和扩散的机理描述。混合气体中不同的组分在膜内溶解和扩散的性能不同，即渗透速率不同，利用这个特点可以用气体渗透膜来实现气体的分离，如空气中氧与氮的分离，由合成氨弛放气中回收氢气等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条