查询词典 sintering

Sintering behavior of diphasic aluminosilicate gel and microstructure of ceramics were studied over a range of chemical composition (Al 2O 3/SiO 2 ratio).

对具有不同Al2O3／SiO2比的双相铝硅凝胶的烧结行为及陶瓷材料的显微结构进行了研究。结果表明，少量液相的存在对先驱粉末的致密化速率和材料显微结构有显著的影响。

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。

Cu-C composite is one of the most potential materials for pantograph slide plate, which is an important component of pantograph system in locomotive. The principle of wettability between Cu and C was investigated in this paper. The element of Mo was selected to improve the wettability between Cu and C. The fabrication process of cold compression sintering fiber reinforced Cu-C composite and its effect on the composite property were studied. The wear and friction mechanism of Cu-C composite was investigated initially by electriferous friction test.

Cu-C材料是目前最具应用前景的电力机车受电弓滑板用材料之一，本文研究了Cu与C之间的润湿原理，利用Mo元素有效改善了Cu与C之间的润湿性；并对冷压烧结法制备纤维增强Cu-C复合材料的工艺过程及其对性能的影响进行了研究；通过带电摩擦试验对Cu-C复合材料带电摩擦磨损机理进行了初步探讨。

The main results of investigation are as follows:(1) By hot-pressing sintering with equimolar Y2O3 and La2O3 as additives, a dense in-situ toughened Si3N4 is prepared.

1选择等摩尔Y_2O_3和La_2O_3作为烧结助剂，利用热压烧结的方法制备致密的自增韧Si_3N_4陶瓷，其相对密度高达99.8％，在1800～1840℃烧结1～2h可得到相对密度超过99％的Si_3N_4。

The efflorescence and sintering of desulfurizer had not been found through checking after examinatorial test.

经过检查，考核试验后的脱硫剂无粉化和烧结现象，并保持足够的机械强度、实测硫容仍保持21%，完好如初。

The studying on sintering behavior of MoS2 in ferric friction material.

MoS2在铁基摩擦材料烧结过程中的行为研究。

Sintering experiments in different atmospheres suggest that N2 atmosphere is the best to synthesize hercynite.

不同气氛下烧成试验显示N2气氛是合成铁铝尖晶石的最佳气氛。

The adopted preparation method comprises the following steps: paper fibre or porous organism is used as a hard template; CoFeFe-LDH is synthesized in the surface and holes of the hard template and roasted to prepare the magnetic cobalt iron ferrite; as the function for fixing the houghite position is produced by the obstruction and adsorption of the hard template, the occurrence of the sintering phenomenon is greatly avoided, thereby preparing the magnetic cobalt iron ferrite with a consistent shape and even granularity.

所采用的制备方法是以纸纤维或多空有机物为硬模板、在硬模板表面及孔内合成Co 2 Fe 2 Fe 3 -LDH，再经焙烧得到磁性钴铁铁氧体，由于硬模板的阻隔和吸附而产生的水滑石位置固定作用，极大地避免了烧结现象发生；从而得到形状一致、粒度均匀的钴铁铁氧体。

In the paper,we introduced main contents and characteristics in the improving design of the 1 # ignitor for ring sintering machine,questions which should be paid attention to in the course of construction,and the effects in the production.

简要介绍了泰钢 1号环式烧结机点火保温炉改造设计的主要内容及特点，施工过程中应注意的问题以及改造后的效

In order to study the z-direction dimensional accuracy of laser sintering wax models for investment casting, both the shrinkage rate and the incrassation of bottom which affected the accuracy were separated by building calculation model.

中文摘要：为了研究激光烧结熔模铸造蜡模的z向尺寸精度，建立计算模型使影响精度的收缩率和底部增厚分离。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。