A kind of electric porcelain insulator and preparation method thereof

Abstract

The invention provides an electric porcelain insulator, which is obtained by glazing and firing raw materials; the raw materials include 45-50 parts by weight of calcined alumina and / or α-alumina, 15-20 parts by weight of feldspar, 5-7 parts by weight of Hubei mud and 25-30 parts by weight of ball clay. The invention provides an electric porcelain insulator and a preparation method thereof. Through the composition and proportion of a specific formula, the strength of the isostatic pressed dry body can be high enough to adapt to the glaze spraying process, thereby replacing the glaze spraying operation, not only the production process There is no dust, no pollution to the environment, and the thickness of the glaze layer is uniform, which solves the problem that the electrical performance of the product is affected by the glaze surface problem. At the same time, it can realize semi-automation, requires low operation skills, and does not need drying operation, which improves the quality of the blank. The efficiency of glazing shortens the production cycle and greatly reduces labor costs and energy costs.

Description

technical field [0001] The invention belongs to the technical field of insulator preparation, and relates to an electric porcelain insulator and a preparation method thereof, in particular to an electric porcelain post insulator and a preparation method thereof. Background technique [0002] An insulator is a special insulation control that can play an important role in overhead transmission lines. It plays two basic functions in overhead transmission lines, namely supporting wires and preventing current from returning to the ground, and also to increase creepage distance. Usually made of glass or ceramic. [0003] In practical applications, porcelain insulators have been widely used due to their advantages in weather resistance, mechanical strength and cost. There are many classifications of porcelain insulators. According to the structure, they can be divided into post (pillar) insulators, suspension insulators, pin insulators, butterfly insulators, tension insulators, an...

AI Technical Summary

Problems solved by technology

However, there is a problem of large environmental pollution in the glaze spraying process. When the glaze slurry is sprayed from the spray gun by compressed air, it will be atomized into micron-sized solid particles, which will cause great pollution to the working area and the surrounding environment. The size of the electric porcelain product itself is very large, and the space required for spraying the glaze will be larger. In order not to affect the entry and exit of the blank, it cannot be completely sealed. Even if it is equipped with a dust collector, it is difficult to clean the atomized glaze slurry. In line with the production concept of green environmental protection

Moreover, due to the complex structure of electric porcelain products, machines cannot be used to replace manual operations in the glaze spraying process. Not only the production risks of operators are high, but also the quality of the glaze is difficult to control, and defects such as flower glaze, crystallization, and uneven glaze surface are prone to occur, thus Affect the electrical performance of the product

At the same time, in the glaze spraying stage, it is necessary to repeatedly heat and dry the blank and spray glaze. Each heating and drying is about 24 hours. Not only the production cycle is long, but also the energy consumption of repeated heating is high.

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