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．     

铁合金矿热炉电极把持器的结构与改进

介绍了铁合金矿热炉几种电极把持器在使用过程中的优缺点,指出了封闭式一一对应把持器结构是新一代埋弧电炉电极把持器结构的发展方向,而引进大电炉部分先进技术,是保证压力环把持系统正常运行的必要条件。     

我国矿热炉电极把持器的现状和发展

介绍了我国矿热炉电极把持器的结构、种类及其优缺点，对电极把持器在使用过程中存在的对电极施压不均，不能有效控制电极压放、水循环冷却效果不佳等同题进行了分析，并提出了解决方案，对以后的进一步完善提出了建议。     

矿热炉新型电极把持器的设计与研究

针对矿热炉把持器普遍存在施压不均、不能有效控制电极压放、水循环冷却效果不佳等问题，提出了新型压力环把持器的设计思路。通过静力分析，新型压力环把持器的设计可行，它完全可以取代传统的锥形环把持器，且它比波纹管把持器更加适合中国企业的实际情况。压力环把持器在实际生产中取得了良好的效果。     

电炉无瓦把持器的试用,设计及电极壳制造接长

介绍了铁合金电炉的新装置——无瓦把持器，分析了其试用及设计情况，并将其与传统钢瓦、埃肯把持器进行了对比，认为无瓦把持器是未来铁合金电炉电极把持器的发展方向之一。     

浅谈组合式把持器在铁合金电炉中的应用与维护

介绍了组合式把持器的结构与特点,分析组合式把持器在铁合金电炉应用中的常见故障及解决办法,以期对铁合金从业者提供一定的帮助及参考。     

16.5MVA硅钡钙特种合金矿热炉组合把持器优化设计

针对16.5 MVA特种合金矿热炉的电极把持系统,选用组合把持器,对主要结构参数进行了设计计算,完成对把持器的结构设计,优化了短网及炉内铜管布置。结果表明:该设计可降低电能损耗,提高矿热炉功率因数,满足生产要求。     

组合把持器在封闭电炉中的应用

介绍了16．5MVA封闭炉的组合把持器，结构和所选择的电炉参数及运行情况。实践证明该设备是可行的。     

采用标准组件电极把持器提高铁合金电炉装备水平

介绍了标准组件电极把持器的主要构造．计算了其压放装置及导电接触元件的主要工作参数。与传统的把持器进行对比，总结了采用标准组件把持器的优点。     

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。     

新型防火GF系列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。     

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。     

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。     

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.     

空分冷箱钢结构损坏原因分析及修复

由于长期运行,珠光砂保温性能下降,以及管道和冷箱的距离之间的近距离,导致冷箱钢结构与低温管道之间的隔离不佳,会发生低温冷脆,直接影响整体的安全运行。介绍了宝钢2#空分冷箱在漏液和长期处于低温区域引起的钢结构断裂后的分析,事故解决方案以及对冷箱隔离方式的探讨。     

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.     

Effect of the Geometric Parameters of a Layered Powder Composite on Its Magnetic Properties

The effect of thickness of magnetic conductor and number of electrically insulating layers on the magnetic properties in an alternating field of a layered powder-metallurgy soft-magnetic material based on iron was investigated. It was determined that increasing the thickness of the magnetic conductor and frequency of the alternating current deteriorated the magnetic properties of the material. Creation of a layered structure in which ferromagnetic layers alternate with electrically insulating layers decreased specific magnetic losses.     

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.     

冒口对钢锭凝固过程固相转变影响的数值模拟

通过自建模型模拟研究了冒口材质和高度对大钢锭凝固过程中固相转变的影响。结果表明:钢锭凝固过程中,锭模及底座附近的钢液发生相转变的速率较快且固液共存区宽度较窄,而冒口附近的钢液发生固相转变的速率较慢且糊状区较宽。相比于传统的黏土砖,轻质砖和绝热板均有助于改善冒口的保温性能,且均可减缓冒口外表面温度上升的速率。冒口高于钢液上表面部分高度的变化对于钢锭凝固过程中冒口附近钢液相转变速率的影响较小。