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1)  urea space-holder
尿素造孔剂
2)  porous urea
多孔尿素
1.
Determination and numerical analysis of moisture content movement for porous urea particle pile;
多孔尿素颗粒堆中湿分移动的定义和数值分析(英文)
3)  urea prilling
尿素造粒
1.
This article discusses the influence of urea prilling tower exit temperature on the water percentage of urea,analyses the factors influencing urea prilling tower exit temperature,and puts forowrd suggestions to control the tower exit temperature through replacing the prilling sprayer and adjusting the shutter opening of prilling tower according to atmosphere temperature and humidity.
讨论尿素造粒出塔温度对尿素含水率的影响 ,对影响尿素造粒出塔温度的因素进行分析 ,提出通过更换喷头及根据环境温度和空气相对湿度调节百叶窗开度来控制尿素造粒出塔温
4)  pore-forming agent
造孔剂
1.
Effect of pore-forming agents content on bending strength of SiC/Al composites;
造孔剂含量对SiC/Al复合材料抗弯强度的影响
2.
Effect of pore-forming agents on mechanical properties of metal-bonded diamond wheels
造孔剂对金属结合剂金刚石磨具力学性能的影响
3.
In this paper, the porous silica ceramic materials and parts are fabricated by introducing the pore-forming agents into the materials by pelletizing method, aging the slip in the vacuum conditions and casting the slip under pressure.
通过造粒的方法引入造孔剂,采用真空抽气混合料浆及加压浇注的方法来制备多孔石英陶瓷材料及其部件。
5)  pore former
造孔剂
1.
Effect of the pore former on the performance of air electrode;
造孔剂对空气电极电性能的影响
2.
The effect of mechanics of different pore former on the properties of low weight high insulation sintering product
不同成孔机理造孔剂对轻质保温烧结制品性能的影响
3.
The porous SiC ceramics were prepared by vacuum sintering in this investigation,the effect of different sintering aids,Al2O3-Y2O3 and Si,and different pore formers,acrylamide copolymer and Carboxymethyl Cellulose(CMC) on the microstructures and porosity were studied.
采用真空烧结方法制备了SiC多孔陶瓷,研究了不同助烧结剂Al2O3-Y2O3、Si以及不同造孔剂丙烯酰胺聚合物、羧甲基纤维素(CMC)对SiC多孔陶瓷形貌和气孔率的影响。
6)  pore forming agent
造孔剂
1.
Influence of pore forming agents on the performance of membrane electrode assembly in PEMFC;
造孔剂对PEMFC膜电极性能的影响
2.
High specific surface area silicon carbide(SiC) was synthesized using citric acid(CA) as the pore forming agent by the tetraethoxysilane (TEOS) sol-gel and carbothermal method.
以柠檬酸为造孔剂,利用硅酸乙酯溶胶-凝胶和碳热还原法制备出了高比表面积的纳米碳化硅(SiC)粉体。
3.
In this experiment,diatomite and pore forming agent are used as main materials,half dry press mold,general sintering,a series cost-effective porous ceramics were produced.
本实验以硅藻土为主要原料 ,天然有机细粉为造孔剂 ,水玻璃为高温粘合剂 ,经半干压成型 ,常规烧成 ,制出了性能优良的硅藻土多孔陶瓷 ,随着造孔剂的加入量、烧成制度的改变 ,气孔率从 47%增加至 71 % ,最大孔径也随之从 1~ 1 0 μm变化 ,密度从 1 。
补充资料:降帘尿素造粒
分子式:
CAS号:

性质:美国田纳西河流管理局(TVA)开发的一种带有特殊结构的转鼓造粒技术。转鼓内部设有提升物料的抄板和收集、倾倒物料的设施。尿素颗料被不断提升和落下形成连续的“幂帘”。熔融尿素喷向此“幂帘”,使小颗粒尿素逐层涂布并经通入鼓内的冷空气固化而达到增大颗粒的目的。进料熔融尿素的浓度为99%~99.7%。

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