高纯硅灰对浇注料性能影响的研究

采用SiO2含量97％和98％的高纯硅灰制作浇注料并与SiO2含量为92％的普通硅灰所制浇注料的性能作对比,结果表明：高纯硅灰比普通硅灰具有更好的流动性,可以降低浇注料的用水量。但对烧后冷态强度无明显影响,从显微结构看,高纯硅灰所制浇注料形成莫来石量增大,但有少量残余方石英存在。     

含Cr_2O_3刚玉质浇注料

研究了Cr2O3含量对刚玉质低水泥和超低水泥浇注料性能的影响。结果表明：Cr2O3含量增加，浇注料的强度降低；选择六偏磷酸钠为反絮凝剂、添加SiO2微粉以及80％Al2O3纯铝酸钙水泥可获得性能优异的合Cr2O3刚玉质浇注料。     

高炉出铁沟用耐火材料的发展

通过对世界主要工业国高炉出铁沟用耐火材料材质、施工方法以及影响其使用寿命因素的分析，指出了今后发展出铁沟耐火材料的方向。     

减水剂对超低水泥Al_2O_3－Cr_2O_3－ZrO_2质浇注料物理性能的影响

对添加三种有机减水剂和两种聚磷酸盐减水剂的Ａｌ２Ｏ３－Ｃｒ２Ｏ３－ＺｒＯ２质浇注料的常温物理性能、热态强度进行了对比，并用扫描电镜（ＳＥＭ）观察了其显微结构。研究表明：对于加有Ａｌ２Ｏ３、Ｃｒ２Ｏ３超细粉，以纯铝酸钙为结合剂的浇注料，有机减水剂更能显著地提高其常温物理性能和高温机械性能，并改善其显微结构。     

石化工业用轻质耐火浇注料的研制与应用

采用轻质多孔熟料、漂珠、ＳｉＯ２微粉等为主要原料，进行了不同颗粒级配及复合结合剂的选择试验，以及漂珠、复合结合剂、ＳｉＯ２微粉的加入量对容重、强度、烧后线变化、高温性能及施工性能的影响试验。     

超轻质浇注料的研究

采用加入烧失添加物研制了超轻质浇注料,对添加物的用量、结合系统的变化与浇注料性能的关系作了研究。结果表明：这种方法能使普通轻质浇注料的容重由１．６０ｇ／ｃｍ３降至１．２０ｇ／ｃｍ３。     

耐火浇注料在熟料窑上的应用与改进

本文通过对熟料窑的运行特点及耐火浇注料的性质分析,在实践中不断探索总结出一套既能适应窑的检修特点．又能很好的使用浇注料的成功经验,在同行业具有很强的推广价值。     

红柱石骨料对脱硫喷枪用莫来石浇注料热震稳定性的影响

采用水冷法研究了红柱石骨料对脱硫喷枪用莫来石浇注料于 80 0℃和 14 0 0℃烧后热震稳定性的影响。结果表明 ,随着试样中红柱石骨料含量的增加 ,烧后试样的热震稳定性提高。其原因是由于红柱石骨料和莫来石基质的热膨胀系数不一致 ,在烧后试样中产生了自发裂纹 ;同时 ,自发裂纹也使烧后试样的抗折强度降低。     

Nanotechnology in castable refractory

In recent times nanotechnology has drawn significant attention in the field of refractory research. Different nano-powders and colloidal suspensions have been utilized to improve the properties of refractory castables. Various studies have been carried out worldwide with nano scaled binders; such as, hydratable alumina (HA), colloidal alumina (CA), colloidal silica (CS), micro silica, etc.; to improve the thermo mechanical properties of refractory materials. Nano scaled additives are also being applied to reduce the energy consumption and to improve the densification process at lower temperatures. In this paper, the contributions of nanotechnology in selection of raw materials, the binders and choice of additives to improve the quality of refractory materials, and the future of nanotechnology in refractory research are reviewed.     

Analysis of a castable refractory using the wedge splitting test and cohesive zone model

A cohesive zone approach is applied to the wedge splitting test (WST) using the finite element code Abaqus to obtain the tensile strength, the fracture energy and insight about the crack wake region. A finite element model updating (FEMU) method, with a cost function based on the measured load (FEMU-F), is used to calibrate the sought parameters. Digital image correlation (DIC) provided the kinematic boundary conditions, and the images were also used to define the geometry for the finite element analysis. Besides the fracture energy analysis and the experimental load, gray level images and displacement fields are analyzed in order to validate the results. The cohesive region is active in the whole analyzed test as confirmed by estimates using the cohesive length.