At present, in continuous extrusion processing of micro cellular plastics, the two pressure drop cell nucleation apparatus of the nozzle and gear pump are used.
在连续微孔挤出加工中，当今采用喷嘴和齿轮泵两种快速压降成核装置。
The influence of technological condition on cell nucleation was studied in microcellular plastics extrusion processing for supercritical CO2/PS by a finite element method CFD.
针对微孔塑料挤出的全过程，对影响气泡成核、成长及泡孔密度的诸多因素如预定型压力、熔体温度、粘度、气泡界面张力、定型卷取速度。
The cell nucleation to an electrode surface along the surface of the particle moving laterally to metal matrix of the proper place, with other particles or meet the nucleation formation;
晶核的形核到达电极表面的粒子沿表面横向移动到金属点阵的适当位置，或与其它粒子相遇形成晶核；
Many factors affecting cell nucleation and cell growth among the extrusion process such as preshaping pressure, melt temperature, melt viscosity, interfacial tension, take-up speed and the te.
针对微孔塑料挤出的全过程，对影响气泡成核、成长及泡孔密度的诸多因素如预定型压力、熔体温度、粘度、气泡界面张力、定型卷取速度。
If the generation of the nucleation rate faster, and crystal nucleus formation, growth speed is slow, it generated more cell number, grain is fine.
如果晶核的生成速度较快，而晶核生成后的成长速度较慢，则生成的晶核数目较多，晶粒较细。
After analyzing the physical process of polyurethane foam formation, such conclusions can be got: bubble nucleation and bubble growth affect cell size primarily.
通过对泡沫合成中的物理过程系统分析得出：泡沫的孔径大小主要受气泡成核与气泡生长两阶段的影响。
The formation of cell structure within PP set three stages: nucleation, expanding, solidifying and shaping .
PP泡孔结构的形成可分为形成气泡核、气泡的膨胀、泡体的固化定型三个阶段。
Different carbon source, nitrogen source and inorganic salts in medium affected the cell growth, the ice nucleation activity and the xanthan gum ratio.
培养基中不同的碳源、氮源和无机盐影响冰核细菌的生长、冰核蛋白的表达及黄原胶的产率。
In the foam process of cellular plastics, bubble nucleation has decisive effect on cell density and cell distribution, so it is the crucial factor to control the foam quality.
前人对泡沫塑料气泡成核过程的研究基本上都是以经典成核理论为基础进行的。
The cultivation condition affected the cell growth, the ice nucleation activity and the xanthan gum ratio.
培养条件影响冰核细菌的生物量、冰核活性和产胶率。
The results show that the more enhancing the bubble nucleation and the larger the amount of the foaming agent, the smaller the bubble cell size.
研究结果表明：气泡成核数越大，物理发泡剂的含量越高，泡孔半径越小；
The results show that the more enhancing the bubble nucleation and the larger the amount of the foaming agent, the smaller the bubble cell size.
研究结果表明：气泡成核数越大，物理发泡剂的含量越高，泡孔半径越小；
应用推荐