第八届绝缘材料与绝缘技术学术会议及论文综述

论文介绍了第八届绝缘材料与绝缘技术学术交流会的会议概况，综述了会议论文内容要点，论文研究方向，国外公司技术讲座内容要点以及会议特点。     

新型半无机硅钢片漆的研制

为提高大电机的运行可靠性,研制了一种新型半无机硅钢片漆,试验结果表明,该漆不仅符合通用硅钢片漆的基本要求,而且经Franklin烧损试验,在150±5℃/5.2MPa/0.5V(DC)条件下测得的泄漏电流平均值不大于0.2A,使铁芯在过热状态下仍能保持良好的绝缘性能。     

绝缘材料水树产生及发展机理的研究现状

本文介绍了水树枝的定义、分类以及影响因素,在参考了16篇中外文献的基础上综述了常用绝缘材料中水树的生长过程和引发机理,推导出水树长度与老化时间、电场强度等因素的关系式。     

热力管网保温节能效果的影响因素分析

对保温设计计算中环境温度的确定及保温材料的经济性选择问题进行了讨论，分析了保温材料施工前性能检测的重要性及严把施工质量关的实际意义。在此基础上，探讨了武钢热力管网强化保温的节能潜力。     

混合气体绝缘设备充、补气技术研究

混合绝缘气体充气、补气是混合气体绝缘设备运维的重要环节。现有的分压充、补气方法,难以精确控制气体混合比例,不能满足混合气体绝缘设备大规模推广的技术要求。为此结合SF_6气体现场充、补气技术经验,提出以动态配气原理为基础的SF_6、N_2等组分精确加压配气技术方案,研制新型混合气体加压配气补气装置,装置能够实现SF_6气体与N_2等两组分混合绝缘气体的现场连续精确配制,气体混合比例范围0%～100%可调,配气误差小于1%,满足不同设备精确配比加压充补气要求。同时提出混合绝缘气体现场补气比例的计算公式,可根据混合气体绝缘设备实际比例,获得合适的补气浓度。     

KB憎水膨珠保温砂浆及其应用

KB憎水膨珠保温砂浆由水泥、KB憎水膨珠、SF憎水粉及少量胶粘剂按一定比例干混而成,保温、防水、防火、容重轻,且集保温与找坡为一体,便于施工。本文结合工程实例说明了该砂浆在平面、立面以及节点处的施工方法。     

Electrically insulating polymeric nanocomposites with enhanced thermal conductivity by visible‐light curing of epoxy–boron nitride nanotube formulations

Epoxy–boron nitride nanotube (BNNT) composites were prepared using visible light through a radical‐induced cationic polymerization method activated by camphorquinone. The fully cured films showed an enhancement of glass transition temperature in the presence of the filler. Electrical characterization showed a slight dielectric constant decrease with BNNT content. Finally, thermal conductivity measured using nano‐flash analysis showed a linear increase in the thermal conductivity of the materials with increasing BNNT content in the photocurable formulations. © 2017 Society of Chemical Industry     

Effects of Internal and External Connection of Electrodes in Diagonal Type Nonequilibrium Plasma MHD Generator

In this paper, by a two-dimensional analysis in the duct cross section perpendicular to the plasma flow, the authors investigate comparatively the current distribution, the electrical efficiency etc. in the diagonal type nonequilibrium plasma generator of the window frame construction and the one of the insulating sidewall. Their numerical computations are made for an example of the cesium-seeded helium in nonequilibrium ionization, where it is assumed that the ionization instability does not occur.

It is shown that the current in the generator duct of the diagonal conducting wall tends to flow uniformly in the cross section of the duct, and on the other hand, the current in the duct of the insulating sidewall does in its central part; thus the performance characteristics of the former becomes better than those of the latter. This tendency increases with the load factor and wall temperature of the generator. Also the generator characteristics are improved with increasing the inclination factor, and the electrode voltage drop decreases with the load factor.     

关于三玻中空玻璃制作技术的探讨

从三玻中空玻璃的工艺特点入手,按照生产制作流程叙述了三玻中空玻璃的制作、生产标准,原材料的选择及制作过程质量控制要点,以期促进三玻中空玻璃的推广及应用。     

汽车隔热板双色注射模设计

对汽车隔热板进行了工艺分析,结合客户需求和制品特点,确定了制品的分型面和注塑设备,并对成型零件、浇注系统、推出机构等进行了设计,模具运行可靠,生产的制品达到了使用要求。