查询词典 pellet molding

The molding behavior of the cornstalk pellet fuel was obtained by its molding tests at different temperatures and pressures.

通过不同温度、不同压力下的成型实验，得到玉米秸秆颗粒燃料成型规律。

In this paper, two assemblies of special test equipments have been designed and fabricated by authors in our laboratory: namely Catalyst Molding Process Analyzer and Catalyst Mechanical Process Tester. These new skills are developed for the dynamic studies on whole mold forming process and crushing process of Fe-Cr WGHS catalyst pellet. Based on the orthogonal experimental design, the effects of some factors during the forming process of solid catalyst, such as predensification proportion, calcination time, calcination temperature and content of graphite on the mechanical strength of catalyst pellets are systematically examined, and the molding conditions have been optimized. Based on the experimental data, the relationship between catalyst density and forming pressure are educed, and the physical significances of some related parameters are described. The parameter of macro scopic elastic moduls has been suggested to character the mechanical properties of molding catalyst. The effects of molding pressure on mechanical properties of catalyst pellets are discussed, and results show that there exists a optimal molding pressure for the ideal mechanical properties: when over-high or over-low pressure is applied, the specific surface area and side crushing strength of catalyst pellets will decreased. The "rebound effect" will be undermined by the unsuitable pressure maintain process, resulting in the apparent decrease of mechanical strength of catalyst pellets.

本研究通过自行设计制造的催化剂模压成型过程分析仪（Catalyst Molding Process Analyzer， CMPA）和催化剂力学性质测试仪（Catalyst Mechanical Properties Tester， CMPT），以Fe-Cr系高温变换催化剂片剂为研究对象，对成型过程和受压破碎过程提供了全过程动态研究的新手段；本研究利用正交实验设计方法考察了固体催化剂成型过程中诸因素（包含预密致比例、煅烧时间、煅烧温度和石墨含量等）对催化剂成型体强度的影响，并对成型条件进行了优化；根据实验结果，关联确定了固体催化剂成型过程中的密度－压力关系式，并对方程中诸因子的物理意义进行了描述；提出了一种利用宏观弹性模量来表征成型催化剂的力学性质的方法；研究讨论了成型压力对催化剂成型体强度性质的影响，结果表明：对于催化剂成型体的强度和比表面性质，成型压力存在着一个最佳值，过高的成型压力会导致比表面积和侧压强度的降低；不适当的成型压力的维持时间会破坏&压力回弹&作用，造成催化剂成型体的机械强度明显降低。

Different grades of crystal polystyrene molding pellet s range from 150, 000 to 350, 000 weight average molecular weight

不同牌号的结晶聚苯乙烯模塑粒料平均分子量范围从150，000-350，000。

This provides evidence for the exploration of the common regulations on pellet molding.

为探索秸秆冷态压缩成型机理提供了参考依据。

With a twin-screw extruder to prepare polypropylene / 8 ether bromide pellet, and injection molding into sheet samples, quantitative analysis of different PP / 8 the sample surface, eight bromine bromine ether ether precipitation changes with time, Using X-ray photoelectron spectroscopy on the sample surface concentrations of bromine atoms ...

用双螺杆挤出机制备了聚丙烯/八溴醚粒料，并注塑成片状样品，定量测定了不同PP/八溴醚样品表面上八溴醚析出量随时间的变化，用X-射线电子能谱对样品表面溴的原子浓度。。。

The pellet fuel cold molding discipline of different crops straws is studied detailed in this thesis,under the background of developing biomass utilization technology as a kind of energy resource.It starts a new way for biomass solid pellet fuel to be used as renewable energy substituting for coal.

本文以发展生物质能资源化利用技术为背景，研究农作物秸秆颗粒燃料冷态压缩成型规律，为生物质固体成型燃料作为可再生能源在替代煤炭燃料方面探索新的途径。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。