Anti-impact toughened glass insulator and manufacturing method thereof

Abstract

The invention discloses an anti-impact toughened glass insulator and a manufacturing method thereof. The insulator has at least a thunder steep slope value of 5000kV / s, can bear 50-50 DEG C repetitive circulation impact under standard load, can support standard load after zero explosion, has a surface crushing stress not lower than 200Mpa, has a U-shaped notch impact strength not lower than 10J / cm<2>, and has a light transmittance not lower than 90%. The manufacturing method includes three steps: preparing raw materials of the toughened glass and corresponding technology auxiliary material and technology devices, vitreous body intensified smelting, and toughening and casting of glass insulators. According to the invention, the anti-impact toughened glass insulator has strong anti-impact capability, excellent main body toughening, excellent integrated mechanical properties, long service life, high light transmittance, and excellent electrical properties.

Description

technical field [0001] The invention relates to the field of electronic components, in particular to an impact-resistant ceramic 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 high-voltage wire connection towers where many disc-shaped insulators were hung at one end. It was used to increase the creepage distance, usually made of glass or ceramics, and was 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 appl...

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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 due to the 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 since 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 the glass insulator over the porcelain insulator is destroyed - the defect is visible, making maintenance and replacement more difficult. Even if the insulator explodes at zero temperature, it is not easy to find and handle. There is no electrical performance improvement for the glass insulator body, and its electrical performance is poor

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