Carbon fiber is produced by dry-wet spinning of copolymerized PAN followed by preoxidation and carbonization.
本文采用干湿法纺制共聚丙烯腈纤维，并进行预氧化，碳化制成碳纤维。
The result showed that the preoxidation temperature and laying thickness had a critical effect on the properties of the fiber.
结果表明，预氧化温度和铺丝厚度是影响纤维性能的关键因素。
When the time of preoxidation was same, the combining intensity of alloy-porcelain decreased with the time prolonging of degassing.
在相同的预氧化时间的条件下，金-瓷结合强度随除气时间延长也呈递减趋势。
A new type of fluidized preoxidation furnace was designed in this paper based on characteristics of PAN base carbon fiber production process.
根据PAN基碳纤维生产的特点，设计了一种新型流态化预氧化炉，并对其关键部件的特点与作用以及流态化粒子的选择作了系统描述。
PAN fibers with different drawing ratio and different preoxidation degree were investigated by means of sound velocimeter and X-ray diffraction meter.
采用声速仪及X射线衍射仪对不同牵伸倍数和不同预氧化程度的PAN纤维进行取向度和预氧化程度的测试，并将其结果进行对比。
Catalyst processing method is used to speed up the preoxidation of polyacrylonitrile fibre. The catalysis results are evaluated with the aid of DSC curves.
为加快聚丙烯腈纤维的预氧化速度，采用催化剂处理方法，借助于DS C曲线来评定催化效果。
Objective: This study is to determine the effect of different surface anodizing and degassing-preoxidation on bonding strength of porcelain to Ni-Cr alloy.
目的：研究非贵金属合金在上瓷前经过不同的阳极钝化条件处理及除气、预氧化对金瓷结合强度的影响。
And the tests of treating simulated aniline water sample indicated, that potassium preoxidation can enhanced the ability of PAC coagulation to remove organic matter.
对模拟苯胺浑浊水样的实验研究显示，高铁酸钾预氧化可有效提高PAC混凝的有机物去除能力。
The paper introduces the preoxidation two periods nitriding technology. The technology makes use of the catalysis of preoxidation enough to shorten nitriding technology time.
采用预氧化两段式气体渗氮工艺，充分利用预氧化的催渗作用，达到缩短渗氮工艺周期的目的。
This article follows up the change of lamella structure in PAN fiber spinning, preoxidation and carbonization process using electron microscope in order to find the evolution of sheet structure.
为了研究原丝中片层微观组织的演变性，借助电子显微镜，跟踪了片层组织结构在纺丝、预氧化和炭化过程中所发生的变化。
The preoxidation efficiency of micropolluted raw water with potassium permanganate composite(PPC) and potassium permanganate combined with ozone was compared in a waterworks in the south of China.
通过中试试验考察了高锰酸盐复合药剂预氧化与活性炭—砂滤池组合工艺处理富营养化水体的效能。
The results showed that some organic compounds could be removed from micro-polluted source water by preoxidation with ferrate, which had good effect of aid to the coagulation and turbidity removal.
试验结果表明，对于微污染水源，高铁酸盐预氧化可有效地去除部分有机物，并具有良好的助凝除浊作用。
The results showed that some organic compounds could be removed from micro-polluted source water by preoxidation with ferrate, which had good effect of aid to the coagulation and turbidity removal.
试验结果表明，对于微污染水源，高铁酸盐预氧化可有效地去除部分有机物，并具有良好的助凝除浊作用。
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