碳化的

This paper expounds the oxyacetylene flare overlaying welding technology of tungsten carbide rod made to be metal matrix carbide ceramal compound overlaying welding layers.

介绍碳化钨条氧乙炔火焰堆焊制备金属基碳化物陶瓷复合耐磨堆焊层的工艺方法，结合碳化钨条氧乙炔火焰堆焊工艺过程、堆焊层性能特点、泥沙磨损实验结果及显微组织形貌，分析讨论了热源性质对堆焊层性能的影响以及复合耐磨堆焊层的抗泥沙磨损特性。

Specimens of the SBCB with different graphitizing degree were obtained in laboratory. Effects of graphitizing degree on the properties of the SBCB, including structure, thermal conductivity, thermal expansivity, resistance to thermal shock, resistance to erosion of molten iron and slag, were studied respectively.

在实验室制备了不同石墨化度的自焙碳块，并研究了石墨化度对自焙碳块的结构性质、高温冶金性能(包括恒压比热容、热扩散率、导热性、热膨胀性、抗热震性)、抗铁水和熔渣侵蚀性能及铁水渗透的影响。

According to the theoretical analysis and experimental results,it is concluded that the wind swirl and the fosse moat effect can also accelerate the concrete carbonization.Besides,wind pressure can generate secondary air field,which can also accelerate the concrete carbonization.

笔者在对贵州省贵阳铁路分局川黔线上一座使用了34 a的混凝土桥梁进行调研时发现，受风压影响较大面的碳化深度为一般面碳化深度的1.15倍，并在文献[2]中对这一结果进行了简单描述。

Using limekiln gas which was exhausted during theprocess of producing calcium carbide to reaction with water glass, did single-factor experiments and discussed the effect of factors on carbonization process, ratio of production and performance of product ,such as temperature and time of reaction, the density of raw material and carbon dioxide etc.

利用电石生产排放的含二氧化碳的废气—石灰窑气和水玻璃进行碳化反应，进行了单因素试验，探讨反应温度、反应时间、原料配比及二氧化碳浓度等因素对碳化过程、产率及产品性能的影响。

Permanent abundant abrasive is it have Co., Ltd. belong to enterprise run by the local people establish to 1998 to rub, the area that the factory building is built and afforesting with an area of 12000 square meters, the company relies on rich technical force and endless enterprising spirit, devoted to various kinds of needs of rubing having , oilstone to develop, the company produces green carbonization , black carbonization , little powder and ultra precise electronic material series mainly, there is sale in Guangdong , Shandong , Sichuan , Beijing , Shanghai , Jiangsu , Zhejiang and Fujian of our country at present, produce the mouth to export to Japan , U.S.A. partly.

恒丰磨料磨具有限公司属民营企业创立于一九九八年，厂房建设面积和绿化面积12000平方米，公司凭借雄厚的技术力量和永无止境的创业精神，致力于各种磨具、油石的需要研制开发，公司主要生产绿碳化、黑碳化、微粉及超精电子材料系列，目前在我国广东、山东、四川、北京、上海、江苏、浙江和福建均有销售，部分产品出口日本、美国。

Which is made up of long carbon chain by N-alkylation or acylation,The surface activity is greatly enhanced because of structure of borate surfactants and the basic property of long carbon chain.

它们将长碳链通过N烷基化和酰化联接在一起的一类含硼表面活性剂，由于是含四配位硼氧杂环结构的表面活性剂和结合长碳链的基本性质从而极大的提高了表面活性。

Also, the effects of the amount of tantalum pentachloride and reaction time on the softening point of the pitch were investigated. Results showed that the tantalum particles were dispersed homogeneously in the pitch precursor with sizes in the range of 20-50nm. The tantalum particles mainly existed in the form of δ-Ta2O5 when the reaction temperature was 420℃. By further heat treatment,δ-Ta2O5 was transformed into β-Ta2O5 at 900℃.Β-Ta2O5 and TaC co-existed at 1200℃. At 2800℃, all the tantalum was transformed into TaC.

结果表明：沥青中钽化合物的粒度为20nm～50nm，主要以五氧化二钽的形式均匀分散于沥青中；惰性气氛下，较低温度(420℃)热处理时，钽化合物以δ-Ta2O5的形式存在，温度升高到900℃时，δ-Ta2O5转化为β-Ta2O5，在温度达到1200℃时，β-Ta2O5和碳化钽共同存在于炭基体中，在2800℃温度下，钽完全转化为碳化钽。

The properties of carbonized corn straw using as thermal insulating agent for liquid metal were investigated.

针对金属液用保温剂碳化稻壳价格不断上涨和保温效果有待进一步提高的现状，以开发新型、质优价廉保温剂为目的，考察了碳化秸秆的理化性能以及作为金属液保温剂的使用性能。

4 Callsin carbonizes the main plant to be engaged in the 100T/Y carbon fiber(T300) the project test run with to go into production the work: Is responsible for the entire carbonized line the normal operation,promptly finishes the production report, and promptly to thedepartment concerned reported the unusual situation, and completes theprocessing preparatory work to the emergency case.

2005/07-2006/01服从公司安排调入原丝开发部，从事100T/Y PAN（3K）原丝车间的安装调试。2006/02-2007/4调入碳化总厂从事100T/Y碳纤维（T300）项目的试车与投产工作：负责整个碳化线的正常运行，及时作好生产报表，并及时向有关部门报告异常情况，并对紧急情况做好处理准备工作。

The effect of suspended tungsten carbide particles, bath temperature and cathodic current densities on the content of tungsten carbide in the electrodeposits was studied, the preferred plating parameters were also optimized by orthogonal test.

分析了镀液中碳化钨微粒的悬浮量、镀液温度及阴极电流密度对镀层中碳化钨含量的影响，并进一步通过正交试验优选出一种较佳的操作条件。

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。