冶金电炉新型绝缘材料的研制及应用

绝缘材料质量的好坏是冶金电炉安全运行的重要因素之一，开发新型绝缘材料是当务之急。介绍了新型耐高温绝缘材料的生产工艺及绝缘性能，应用效果证明其具有推广价值。     

我国铁合金电炉绝缘现状及发展概况

介绍了铁合金电炉绝缘材料的特点、使用状况及新型绝缘材料的优势，简述了绝缘材料的耐热等级及今后的发展方向。     

敞口矿热炉电极把持筒的改造与新型绝缘材料的作用

收于旧式把持筒自身的结构缺陷，使铜瓦与把持筒绝缘处材质的工作环境恶劣，寿命很短，频繁热停炉更换绝缘件，选用新型绝缘材料，并采用新结构把持筒后，绝缘材料寿命提高１０倍以上，效果良好。     

敞口炉把持筒改造与新绝缘材料使用的实践

广西八一铁合金厂电炉中的电极把持器的结构存在一些缺陷，绝缘材料的耐高温性能较差，需要经常检修。通过对把持筒结构进行改造，并使用新型绝缘材料，减少了停炉时间，提高了设备作业率，取得了较好的经济效益。     

敞口矿热炉电极把持筒的改造与新型绝缘材料的使用

由于旧式把持简自身的结构缺陷．使钢瓦与把持筒绝缘处材质的工作环境恶劣，寿命很短，频繁热停炉更换绝缘件．选用新型绝缘材料，并采用新结构把持筒后，绝缘材料寿命提高10倍以上．效果良好．     

使用新型绝缘材料改进下线工艺提高热电厂3#发电机容量

本文简述了热电厂3#发电机大修中引用新型绝缘材料和进行工艺改进，以及实施改进措施后取得的效果。     

采用绝缘吊桥进行带电跨越施工技术

采用绝缘吊桥进行带电跨越施工技术是结合了先进的无跨越架不停电架线工艺和新型绝缘材料,克服了停电难、施工投入大等难题．有效解决了带电跨越高等级电力线路的安全瓶颈,相比较传统带电跨越施工工艺,具有很高的安全性和操作性     

H系列新型耐高温绝缘材料的研制

采用特殊树脂HRB 6作粘合剂 ,用专用设备对 5 0B云母纸上胶 ,经一定温度烘焙压制而成的H系列新型耐高温绝缘材料 ,经矿热炉和电弧炉实际使用证明 ,该产品工作温度达 70 0℃ ,工频介电强度大于 2 0kV/mm。     

新型熔铸云母绝缘材料在矿热炉中的应用研究

介绍了一种新型合成熔铸云母材料，它具有电绝缘、耐高温、耐腐蚀、抗氧化、抗蠕变、有弹性、可切削加工等特点，克服了普通云母材料不耐高温、抗压强度低、易粉碎、易分剥和一次性使用的弊端，是矿热炉的理想绝缘材料，对矿热电炉的综合节能降耗很有意义，值得推广应用.     

不同型式直流电弧炉炉底电极的综合比较与评价

评价项目炉底电极型式ＣＬＥＣＩＭ式ＧＨＨ式ＤＶＡＩ式ＡＢＢ式漏钢的可能性无无无无万一漏钢后的安全最危险较危险较危险较危险导电性金属棒导电金属触针导电金属鳍片导电耐火材料导电绝缘铅可通过设在炉壳与炉底之间的沟槽流出,绝缘材料不与铅接触采用隔板阻止铅对绝缘材料的破坏,同时在炉底增加排铅小孔绝缘材料设在炉壳的中下部,铅无法与之接触绝缘材料设在靠近炉壳,铅会向炉底中心聚积,不与绝缘材料接触搅拌较好较好较好最好电弧偏弧不同二次导体供给大小不同的电流(最有效)改变二次导体布线方式(较有效)不同二次导体供给大小不同电…     

Physicochemical approaches to designing NiAl-based alloys for high-temperature operation

The structure and properties of new-type materials based on light refractory nickel monoaluminide NiAl as a structural material are analytically reviewed. The choice of various alloying systems and structural-phase states of NiAl-based structural materials, including structural materials, is analyzed, and the choice of the processes of production of the materials is grounded, as applied to their composition.     

热损失一定时双层保温材料的合理选择与使用

得出热损失一定的情况下合理选择内、外层保温材料的依据和双层保温可比单层保温的保温费用低的结论，导出了保温费用最低时双层保温材料各层厚度的计算公式。     

复合纳米级微孔结构隔热耐火材料在工业炉中的应用

从不同角度对复合纳米级微孔隔热材料的优势进行阐述。相比于传统隔热材料,这种新型材料导热系数低,隔热效果好,节能效益可观,综合应用价值明显。经过实例分析表明,这种隔热材料在工业炉上的应用效果显著,普适性强,前景广阔。     

黑匣子高温测试仪的开发

采用物质的相变吸热原理，可以将高温环境传人保温箱的热量重新排回至高温环境，有效地提高了保温箱的抗高温能力，并对保温箱的隔热性能做了简单的理论推算和测温反向试验。温度测试仪选用超低功耗CPU，具有体积小、耗电少的优点，使黑匣子高温测试仪在运行过程中具有很好的安全可靠性。     

半导体材料与敏感元件

本文评述了半导体材料(例如Si,Ge,GaAS,InP,CdTe,HgCdTe)的发展情况及其在在新型传感器中的应用。     

火法炼锌精馏塔新型大檐盘的研制

介绍了新型大檐盘的研制过程,论述了原材料、结合剂等对制品性能的影响。研制成功的大檐盘投入生产使用后,解决了漏锌滴入燃烧室后引起的一系列问题,并提高了产量。     

Surface spectroscopy of apatitic materials: limitations and concerns

The use of x-ray photoelectron spectroscopy for the study of biological materials has provided mixed results. The experimental difficulties associated with the application of this technique to the study of biological materials include the effects of ultra-high vacuum, x-ray exposure, surface charging, and, for insulating materials, the inherent lack of an intrinsic energy reference. Since most biological materials are insulators, the lack of an intrinsic energy reference complicates one's ability to draw direct comparisons between different studies. In this paper, the results from two different apatites are compared with the results obtained from the use of two conventional techniques for referencing binding energies. The results presented here are referenced only to the Pt Fermi level; no further energy modifications are performed. A comparison with the results of other investigators indicates a large difference in binding energies for all involved core levels. These results indicate that, in the study of insulating materials with x-ray photoelectron spectroscopy, it is essential that all data be acquired under exacting conditions on the same experimental system.     

High-Performance Vacuum Insulation Panel: Development of Alternative Core Materials

Energy efficiency of the built environment greatly depends on the performance of the insulating materials used in the building envelope construction. Vacuum insulation panels (VIPs) offer excellent thermal resistance properties that can enhance the energy efficiency of the insulating systems and provide savings in energy consumption. However, VIP systems are virtually unknown and rarely used for building construction in North America. There is a need to investigate the use of VIPs in various components of building envelopes and their long-term performance. The National Research Council, Canada, Institute for Research in Construction is investigating a number of fundamental aspects related to the performance and construction of VIPs, which this paper discusses. More specifically, it reviews the underlying basics behind the functioning of VIPs and presents results from the investigation into the development of alternative core materials for VIP construction.     

Thermal and thermomechanical evaluations of channel induction furnace applying strong insulation containing lightweight aggregates

Monolithic materials with a strong thermal insulating effect are required by the foundry industry for further energy savings, meanwhile possible premature wear of refractory linings caused by over-insulation should be avoided. A monolithic insulating material containing lightweight aggregates possessed strong thermal insulation and was proposed to replace the traditional insulating material made of chamotte currently used in a channel induction furnace. To evaluate the new lining concept, creep of the working lining was considered in the finite element modelling and followed the classical von Mises creep model, which was defined with the Norton–Bailey strain hardening creep equation. The results showed that the lightweight design of the insulating lining reduces the heat loss from the steel shell and material consumption. Moreover, the thermomechanical loads in the refractory linings and steel shell remain within a reasonable range when compared with the currently in-use refractory lining concept.