A high-strength anti-aging porcelain insulator and its preparation method

Abstract

The invention provides a high-strength anti-aging porcelain insulator, which comprises the following raw materials in parts by weight: 20-32 parts of illite, 22-30 parts of quartz, 15-25 parts of molecular sieve, 10-18 parts of aluminum oxide, 10-18 parts of zirconium, 10-20 parts of reinforcing fiber, 1-8 parts of nano-titanium dioxide, 1-8 parts of nano-silicon dioxide, 1-8 parts of nano-silicon nitride, 1-8 parts of nano-boron nitride, sepiolite powder 2 to 8 parts, 2 to 8 parts of bentonite. The insulator of the invention adopts multiple functional raw materials to compound, so as to improve the aging resistance and mechanical strength of the insulator. The present invention also provides a preparation method of a high-strength anti-aging porcelain insulator, comprising the following steps: preparation of nano-silica composite modified alumina-sepiolite powder; mixing and ball milling; sieving and iron removal; Filtration and aging; blank forming and drying; glazing and firing; cutting and polishing, glue binding and curing. The insulator obtained by the method of the invention has the advantages of high mechanical strength, pollution resistance, flashover resistance and aging resistance.

Description

A kind of high-strength anti-aging porcelain insulator and preparation method thereof technical field The present invention relates to electric porcelain insulator technical field, relate in particular to a kind of high-strength anti-aging porcelain insulator and its manufacture preparation method. Background technique Insulators are devices installed between conductors of different potentials or between conductors and ground potential components, capable of withstanding Voltage and mechanical stress effects. It is a special insulating control that can play an important role in overhead transmission lines. morning During the years, insulators were mostly used for utility poles, and gradually developed in the high-voltage wire connection tower with a lot of disc-shaped insulation hanging at one end. The body, which is to increase the creepage distance, is usually made of glass or ceramic. [0003] The transmission capacity of the UHV transmission line is large, the ...

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Problems solved by technology

In addition, when the ceramic insulators in the prior art are used outdoors, the running insulators are always affected by various pollution sources in the atmosphere, which accelerates the aging rate, and is prone to pollution flashover and ice flashover

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