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Modifications of Mandrel Cooling System and Outlet Table of Assel Pipe Mill;

Assel轧管机芯棒冷却及后台设备的改造

Discussion on Optimizing Deformation Process to Enhance Mandrel Utilization Factor;

优化变形工艺提高芯棒利用效率的探讨

3D finite element analysis of effect of mandrel on continuous seamless tube rolling process;

芯棒对连轧管轧制过程影响的三维有限元分析

Beginning with the analysis of the rolling process of mandrel steel H11 and based on the observance of the shape of the fractures,this paper studied its microstructures and properties and analyzed the effects of various factors.

从分析芯棒轧制工艺入手 ,在观察芯棒开裂断口形状基础上 ,对芯棒组织性能进行了研究 ,分析了影响芯棒开裂的各种因素 ,并提出了改进轧制工艺的主要措施。

Through tests of ACCC under different high temperature conditions,it is found that under high temperature,the surface of carbon fiber composite core of strain jumper section will appear something like "bamboo knots",which requires special attention in design.

但也有其自身的弱点,通过对ACCC导线进行不同状态的耐高温性能试验,发现该导线耐张跳线段的碳纤维复合芯棒表面高温运行时会出现"竹节"现象,在设计中应予特别关注。

The effect of pressing procedure on mechanical property was investigated with different core,stress and production procedure.

介绍了国内外棒形悬式复合绝缘子金属附件连接区的设计结构,从不同厂家芯棒、压接力和生产工序三方面研究了连接区采用压接式结构对产品机械性能的影响,提出了在设计连接区时应考虑圆度、连接区的长度、端口的密封性、压块的长度及壁厚等因素。

Cause study and countermeasures for core rod brittle fracture of suspension composite insulators on 220kV Ping-He line;

220kV坪核线复合绝缘子芯棒脆断原因分析及对策

In this paper,space charge distribution in DC composite insulator FRP rod materials after negative DC high voltage application was measured by PEA method and the results were analyzed and discussed.

使用PEA法空间电荷测量系统测量了负直流高压电场作用后复合绝缘子芯棒材料中空间电荷分布,并进行了相关的分析和讨论。

The reason of brittle fracture, having been found in the free length of FRP rods of some polymer insulators in service and always close to the high voltage end, is not only caused by the tensile mechanical stress, but also by the direct and slow corrosion with invading acid or moisture.

复合绝缘子在运行过程中，高压端的芯棒与金具非联接部位所出现的断裂，不是纯拉力造成的，而是耐酸性差的芯棒，被高场强下电晕产生的ＮＯ２与水反应生成的硝酸缓慢腐蚀后在承担正常载荷时造成的。