A kind of multi-layer glued toughened glass insulator and its manufacturing method

Abstract

The invention discloses a multilayer glued toughened glass insulator and a manufacturing method thereof. The insulator at least can resist a lightning steep peak value of 5000kV / s, can bear the repeated cycling shock of -50 DEG C to 500 DEG C under a standard load situation, and can still support the standard load after the self explosion at 0 DEG C; the surface pressure stress is not lower than 300Mpa; the U-shaped notch shock strength is not lower than 25J / cm<2>; the light transmittance is not lower than 80 percent; and by virtue of a way of thickening and cooling for multiple times, a finished product insulator has a multilayer buffer and supporting structure, can bear multi-angular and high-frequency shock power; and by adding a high-temperature-resistant gluing agent into a layered structure, on one hand, the use is facilitated, and on the other hand, the shock resistance is improved. The multilayer glued toughened glass insulator is good in economic performance, resistant to shock, high in fracture toughness, good in comprehensive mechanical properties and long in service life.

Description

technical field [0001] The invention relates to the field of electronic components, in particular to a multilayer glued toughened glass insulator and a manufacturing method thereof. Background technique [0002] Insulators are special insulation controls that can play an important role in overhead transmission lines. [0003] In the early years, insulators were mostly used on utility poles, and gradually developed into a high-voltage wire connection tower with many disc-shaped insulators hanging on one end. It is used to increase the creepage distance, usually made of glass or ceramics, and is called an insulator. Insulators play two basic roles in overhead transmission lines, namely supporting wires and preventing current from returning to the ground. These two roles must be guaranteed; at the same time, insulators should have sufficient electrical insulation strength, moisture resistance and high temperature resistance. [0004] Among the relevant patents that have been a...

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Problems solved by technology

[0004] Among the relevant patents that have been applied in China, the patent "A Glass Insulator" (application number: 201210349297.3, publication date: 2013-01-16) discloses a composition formula of a glass insulator with good stability, but because it is made Sintering after powder, high brittleness and poor bonding force, unable to retain basic working performance after zero-degree self-explosion, and because the powder remelting destroys the tempering effect and surface compressive stress brought by rapid cooling of the glass, the mechanical properties are poor and The service life is short (the surface compressive stress can significantly improve the service life), on the other hand, there is no toughening and impact resistance treatment, so that the glass insulator is easily damaged by physical shock or cold and heat cycle; the patent "Composite FRP Insulator" ( Application number: 201210470969.6, publication date: 2014~06~04), which discloses a glass insulator coated with silica gel film, but because the glass body has not undergone strength improvement treatment, the overall performance of the insulator is poor, and the preferred black silica gel in this invention Due to the poor light transmittance of the film, the biggest advantage of glass insulators over porcelain insulators is that the defects are visible, making maintenance and replacement more difficult. There is no electrical performance improvement for the glass insulator body, and its electrical performance is poor

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