复合绝缘子伞套间粘接结构性能

为了确保伞套间粘接性能,选用特制的粘合剂,采用半机械化套粘伞裙装置,把自动打磨好内口表面的,与护套采用过盈配合的,按内外绝缘强度差1倍所确定内口长度的伞裙套粘在护套上以保证伞套间粘接部位实现硅氧烷分子交链完全,补强剂颗粒表面羟基及分子间范德华力利用充分,没有较大的填充剂颗粒存在的界面,使界面具有较高的机械强度和良好的绝缘性能。伞套间的过盈配合在相应部位所出现的弹变,因其体形网状分子结构中和硅氧烷分子螺旋状态的存在,其蠕变性能极为缓慢,应力松弛现象几乎不存在,伞套间粘接性能是可靠的。

Study on Adhesion Performance between Insulator Shed and Sheath

In order to ensure the adhesion performance between the sheds and the sheaths,a special semi-automatic adhesive is selected and a special equipment is used to stick the sheds to the sheaths.The sheds with ground internal surface and margin fitting with sheath as well as overlap length determined as double insulating stress of inner insulation than external one,are bonded on the sheath to ensure interface with completely cross-linked siloxane,full utilization of vanderwaals force between facial hydroxy and molecule of active filler without large grains,thus ensuring high mechanical strength and better insulation performance. Helical dispersion of siloxane molecule in net structure causes very tardy creep due to elastic deformation at margin fitting between shed-sheath interface,so there is almost no relation of stress. So the adhesion performance between the sheds and the sheaths is quite steady.