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Afterwards, according to the optimally condition of sinter-roasting between coal and Alumina, emphasis on sinter-roasting process between coal and Bauxite, from reaction coefficient and fixed carbon content in coal and Oxidate content in Bauxite, figure out that coal and Bauxite's mixture ratio which needed in the reaction was 71.85:100, however, at the experiment can found that if to the theoretical calculation result make up the charge, the coal and Bauxite basically can not close-burning.

然后,根据煤和氧化铝的最佳烧结条件,着重对煤和铝土矿的烧结工艺进行了研究,由试验反应配比系数和煤中固定碳的含量以及铝土矿中氧化物的含量,计算出反应所需的煤和铝土矿的配比为71。 85:100,在试验的研究中发现,严格按照理论计算所得的结果进行配料时,物料基本上不烧结。

The use of cheap raw materials, simple processes and simple equipment, while in the legal system for a Zirconia-based ceramic materials of valuable hardware, through the precursor decomposition by zirconium oxide ceramic micro base, and on this basis, the use of dry-pressed shaped and without pressure sinter prepared for the implications for sinter explore sintering processes.

本文使用价格低廉的原料、简单的工艺和简易的设备,固相法制备出氧化锆基陶瓷粉体的前驱体,通过前驱体分解得到氧化锆基陶瓷粉体,并在此基础上,利用干压成型和无压烧结对所制备的粉体进行烧结,探讨烧结工艺。

This thesis has systematically studies the microstructure of the sinter bearing fluorine of different compositions and in different sintering condition.(1) The main units of the Low Fluorine Sinter are magnetite、hematite、 SFCA、larnite、glass and pore. The cuspidine doesn't form for the low content fluorine, and the fluorine is in glass; Sinter basicity dominates the forming of the larnite and SFCA, when basicity is between 1. 72 and 1. 96, there are more larnites in the binder phase, and when the basicity is biger than 1. 96, there are more SFCA in the binder phase; the hematite appears like magnetite and usually is around pore.

为此,本文对不同组成、不同烧结条件的烧结矿样品进行了系统的显微分析和研究,其主要内容包括:(1)构成低氟烧结矿的主要组元有磁铁矿、赤铁矿、铁酸钙、硅酸二钙、玻璃体和气孔,由于含氟量的降低,枪晶石等含氟矿物并未形成,氟分布在后期凝固的玻璃体中,其中硅酸二钙和铁酸钙受碱度影响较大,硅酸二钙在碱度为1.72~1.96范围内形成较多,铁酸钙在碱度大于1.96含量增多,赤铁矿呈磁铁矿假象,多分布在气孔周围,各组元的生成顺序为:磁铁矿—硅酸二钙—铁酸钙—玻璃体。

ANSYS is a finite element simulation software used to simulate the temperature field in selective laser sintering.By using the ANSYS parameter design language,the density of the thermal flow,the velocity and the path of scanning can be controlled.The effect of the scanning path on the temperature field in the SLS process is studied. Balling,which occurs at the end of the scanning line,is caused by the dissymmetric temperature field and the great temperature gradient.

利用有限元分析软件AN SY S,对激光烧结温度场进行了数值模拟,建立了激光烧结薄板的温度模型;运用APDL语言控制热源的热流密度、移动速度以及扫描轨迹;研究了激光行程对烧结温度场的影响,扫描端点温度场的不对称及较大的温度梯度造成了端点球化现象;激光扫描线间的耦合作用使端点球化现象随扫描线的增加而逐渐显著。

In response to this situation VAI has recently developed the so-called MEROS process- standing for Maximized Emission Reduction Of Sintering in which dust and harmful metallic and organic components present in sinter offgas are removed in a series of treatment steps to levels previously unattained with conventional gas-treatment techniques. In a number of test campaigns conducted in a demonstration plant at voestalpine Stahl from 2005-2006, the technical and economical advantages of this innovative sinter offgas-cleaning process were verified.

基于这种情况,VAI近来开发出了一套名叫METRO的系统,能最大限度的减少烧结系统的排放,在这一系统中,烧结过程废气存在的粉尘、有害的金属物质和有机物质都在一系列的处理步骤中排除并且达到一定的水平,而这是传统的废气处理方法所无法达到的。2005到2006年间,在奥钢联位于澳大利亚林芝的实验厂里,进行了很多的试验,这一改革的烧结烟气净化处理系统的技术和经济优势得到了验证。

In this article, three kinds of prealloy powder were developed by water atomization method. The base attribute, pattern, phase composition, differential thermal analysis of powder were researched. Sintered density, hardness, bend strength, Young's modulus were researched as hot pressed sintering temperature changing. By using abrasive wearing equipment upbuilt by the authors, the wear resistance were determined. Green-pressing density, simulated green-pressing strength and bonding momental of high frequency brazing were assayed. SEM corrosion structure and SEM appearance of fracture were observed.

本文采用水雾化法开发了三种预合金代钴粉末:对粉末的基本属性、形貌,粉末的相组成,粉末的差热性进行了分析研究;测定了它们的烧结密度、硬度、抗弯强度、弹性模量随热压烧结温度变化的规律;采用作者自行建立的磨料磨损试验方法,测定了它们的质量磨损百分率;测定了它们的冷压生坯密度、模拟生坯强度以及高频钎焊的结合力矩;观察了热压烧结SEM腐蚀组织和SEM断口形貌。

Kempers' study , the more layers the mesh screen type had, its resistance against gravity was higher, but its heat resistance and flow resistance were comparatively augmented. As mentioned in the preceding paragraph, it is extremely difficult for a single micro structure based on any of the three types to possess both low flow resistance and strong capillary force. Faced with this fact, the researchers have tried to mix the three micro structures in Table 2 into as many combinations as possible so that a composite micro structure with low flow resistance and great capillary force may be fabricated. After a thorough analysis, the groove combined with sintered metal or mesh screen has been found to be a better alternative. However, the groove combined with sintered metal will raise the flow resistance of the channel, and the aluminum substrate employed in this research cannot be sintered into a micro structure. As a result, the groove combined with mesh screen is finally chosen as the composite structure to enhance its capillary force and at the same time maintain its high permeability. In this way, the heat pipe will not fail due to the working angles.

Kempers 的研究当中提到,当网格结构越多层时,其对抗重力的能力也越强,但相对的其热阻以及流阻也越高,就如同前段所述,我们很难在单一结构当中找出一流阻低且毛细力之微结构;因此本研究便以表2中之三种微结构进行组合,找出一低流阻且毛细力强之复合式结构,经分析发现,沟槽搭配烧结以及沟槽搭配网格为较佳之组合方式,但由于烧结搭沟槽构造将会提高流道之流阻,且本研究使用铝做为基材,并无法使用烧结最为其微结构,故将采用网格搭配沟槽之复合式结构提高结构的毛细力,并维持沟槽结构的高渗透性,解决因角度造成热管失效的问题。

Finally, for the manufacture demand of multilayer piezoelectric transformers , the low-melting additions, which had transient liquid-phase sintering mechanism, could be used to decreasing the sintering temperature and improving the properties.

压电陶瓷变压器的片式多层化需要低烧结温度的压电陶瓷材料以匹配低成本的银钯电极浆料,利用具有过渡液相烧结机制的玻璃料作为助溶剂可以在不劣化性能的同时大幅降低烧结温度。

The differences of the micro structure and properities of the bulk sinters, between the fabrication methed of powder metallurgy and reactive synthesis for silver tin oxide composite, are studied in prensent thesis. With the increase of the tin oxide content in silver matix, the electric conductivity of the composite tended to decreace. While in the same tin oxide content, the electric conductivty of the composite fabricated by reactive synthesisis better than that by powder metallurgy. One of the reasons is that the regular net structure existing in former composite.

研究了两种方法即粉末冶金法和反应合成法制备的银氧化锡复合材料烧结坯在组织上的区别和性能上的差异,两种方法制备的银氧化锡复合材料,随着氧化锡含量的升高,材料导电性均呈下降趋势,而相同成分的材料,反应合成法制备的银氧化锡复合材料的烧结坯的导电性要优于粉末冶金法,有规则的网络状组织结构是反应合成法制备的烧结坯导电性好的原因之一。

In this thesis, the research about surface modification of titanium alloy was carried on starting with improving stability of calcium phosphate biomedical coating by force of chemical treatment, Physical Vapor Deposition of titanium metal at high temperature and Electrophoresis Codeposition and sintering technology of the coating. By way of the studying of graded design of microstructure and composition of coating and EPCD and sintering technology, a systemic technology by which a calcium phosphate graded ceramic coating was prepared and sintered rapidly on the surface of a complex shaped product was obtainedand a high function titanium alloy/bioglass/hydroxyapatitegraded coating wasdeveloped.

本文从改善钛合金表面钙磷生物涂层的稳定性入手,采用化学处理、高温真空镀钛和电泳共沉积--烧结等技术对钛合金的表面进行了改性的研究,通过对涂层的结构和组成的梯度设计和EPCD--烧结技术的研究,获得了较系统的能在复杂形状的制品表面涂覆钙磷梯度涂层及其低温快速烧结技术,并研制出了高性能的钛合金/生物玻璃/羟基磷灰石梯度涂层。

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推荐网络例句

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。