共查询到19条相似文献,搜索用时 93 毫秒
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熔融石英陶瓷的开发及应用 总被引:11,自引:1,他引:10
概述了熔融石英陶瓷的制造工艺及性能特点,对比分析了其国内外发展概况,介绍了石英陶瓷辊,闸板砖,空心辊,旋转等几种高档熔融石英陶瓷制品的开发进展及应用情况。 相似文献
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用镁铝质闸板砖代替以往的粘土质闸板砖作小炉闸板,可持续使用三个半月不变形,减轻蓄热室的堵塞程度,降低工人劳动强度,节约材料,降低生产成本,有利于生产工艺的稳定. 相似文献
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Marcos Marques Da Silva Paula Vicente De Lorenzi Luciano Da Silva Márcio Antônio Fiori Adriano Michael Bernardin 《International Journal of Applied Ceramic Technology》2010,7(2):256-262
In this study, a porcelain tile residue was used to produce clay bricks. The residue was characterized (XRF, PSD, dilatometry, solubility, and leaching analyses) and was added to a brick paste, forming compositions that were extruded, dried, and fired at 1000°C. The fired specimens were tested [compressive strength, shrinkage, apparent density, water absorption, phase analysis (XRD), microstructure (SEM), leaching, and solubility]. The results showed that the porcelain residue was a noninert material. When added to the brick paste, the residue shows an improvement of some properties due to its alkaline content acting as a flux in the clay paste and causing the vitrification of the structure. 相似文献
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以固体废弃物粉煤灰与K2CO3为主要原料,通过预烧处理得到活化的粉煤灰原料,分别在850 ℃、875 ℃、900℃、925℃、950℃度进行常压烧结,制备得到粉煤灰陶瓷墙地砖材料.利用XRD、SEM分别对其物相组成与微观结构进行测试,结合烧成样品的吸水率、体积密度、显微硬度随温度的变化规律,分析了烧结工艺对粉煤灰陶瓷墙地砖性能的影响.研究结果表明:随着烧结温度的升高,样品中液相含量明显增加,在液相流动的作用下,坯体内部的气孔逐渐被填充,固相颗粒被粘结在一起形成连续的整体,从而形成致密的瓷体结构,当烧结温度为925 ℃时,样品的吸水率达到最小值:0.07%,维氏硬度达到最大值:5.9 GPa.而保温时间的增加,液相流动与物质迁移更充分,导致KAlSiO4晶粒尺寸增加,轮廓清晰,但并未对物相及其力学性能产生明显影响. 相似文献
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根据国内已建成投产的浮法玻璃熔窑的运行情况,对现在的卡脖结构的功能及其结构形式进行了分析.对现有卡脖结构提出了两点改进设想:一是用闸板砖结构代替卡脖大水包,二是大吨位熔窑可以采用双卡脖结构. 相似文献
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现代陶瓷工业中沸石的应用 总被引:1,自引:0,他引:1
本文介绍在陶瓷生产工艺基础上,用天然沸石矿物制备吸附剂、离子交换剂、触媒(催化剂)。还介绍用沸石矿物制备陶瓷颜料、瓷砖、泡沫微晶玻璃。 相似文献
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Guy E. Stong 《Journal of the American Ceramic Society》1933,16(11):598-600
X-ray diffraction photographs of paving brick were compared with those of pure materials. The most important result obtained in this work is the discovery of a line in the X-ray diffraction pattern of paving brick which is characteristic of high-grade shale paving brick. This line, produced by an undetermined crystal, is more intense in the tougher than in the weaker brick. The line falls at 2.03 ± 0.01 Ångström units. A further result of this investigation is the proof that cristobalite, mullite, sillimanite, alumina, and cyanite are not present in the paving brick studied. This also shows that mullite is not produced in ceramic materials at the relatively low temperature at which paving brick are fired. 相似文献
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Jianfeng Wu Kun Li Xiaohong Xu Yaxiang Zhang Xiaoyang Xu Xinbin Lao 《International Journal of Applied Ceramic Technology》2017,14(3):454-460
The intention of the present study was to develop an alternative composition for making porcelain material using diopside as the main raw material. Particle size distribution, X‐ray diffraction, X‐ray fluorescence spectrometer, and field emission scanning electron microscope were carried out to characterize the body. Alfa‐quartz, diopside, anorthite, and clinoenstatite were major phases of fired sample. The flexural strength, 131.54 MPa, was two times higher than that of conventional porcelains. During firing, iron ions were diffused into diopside crystal lattice giving the porcelain body a favorable whiteness. It is applicable in preparation of porcelain material using diopside as the main raw material. 相似文献