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A composite insulator with alumina porcelain core rod and its manufacturing method

A composite insulator and a manufacturing method of technology, which are applied to insulators, clay products, other household appliances, etc., can solve the problems that affect the normal use and promotion of insulators, reduce the bonding force of silicone rubber sheds, and increase the cost of resin cores, and improve the bending strength. , The effect of improving the interface stress and improving the bending performance

Active Publication Date: 2020-11-06
江西正强电瓷电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The insulator includes the main body in the middle, the umbrella skirt on the side of the main body, and the installation parts at both ends of the insulator body (the installation parts are generally hardware or flanges); in the prior art, there are two types of insulators: electric porcelain and rubber, and electric porcelain insulators have anti The advantages of good aging resistance, but it has the disadvantages of relatively bulky and high cost; the rubber insulator has the advantages of light weight, but it is not resistant to aging and has the disadvantages of poor strength. In the prior art, there is also a kind of internal resin core insulators, but the resin core also has the disadvantage of high cost, which affects the normal use and promotion of insulators
[0003] However, if a glaze layer is added to the surface of the porcelain core, it can not only increase the mechanical strength of the porcelain core, but also have certain hydrophobic properties, but the bonding force between the silicone rubber shed and it will be greatly reduced. How to improve the glaze layer of the porcelain core rod and the silicone rubber umbrella The interface binding force of the skirt becomes the focus of research

Method used

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  • A composite insulator with alumina porcelain core rod and its manufacturing method
  • A composite insulator with alumina porcelain core rod and its manufacturing method
  • A composite insulator with alumina porcelain core rod and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1-3 As shown, an alumina ceramic core rod composite insulator includes an alumina ceramic core rod 100 and an shed jacket 200 covering the outside of the alumina ceramic core rod 100. The alumina ceramic core rod 100 is cylindrical, and the At least one groove 101 is provided on the side of the alumina ceramic mandrel 100;

[0038] The outer wall of the alumina ceramic core rod 100 is provided with a reinforcing part.

[0039] In a specific implementation, the reinforcing part includes grooves or protrusions, and the grooves or protrusions enclose a grid-like region 102 on the outer surface of the alumina ceramic core rod.

[0040] Specifically, a number of triangular positioning blocks 103 arranged in disorder are arranged on the grid-shaped area 102 .

[0041] Specifically, one of the included angles of the triangular positioning blocks 103 is 30-40°, and each side of adjacent triangular positioning blocks 103 is not on the same straight line.

[00...

Embodiment 2

[0045] A method for manufacturing an alumina porcelain core rod composite insulator, comprising the following steps:

[0046]S1: Mix 10 parts by weight of industrial alumina powder, 5 parts of calcined bauxite powder, 20 parts of feldspar, 25 parts of clay, and 20 parts of calcined kaolin, and wet grind until the particle size of the powder is less than 5 μm Slurry, press the qualified mud to vacuum mud;

[0047] S2: Using the mold forming method to prepare the alumina ceramic mandrel green body; in the specific implementation, the mold adopts a mold with a grid shape and a triangular positioning block;

[0048] S3: Spraying or dipping glaze on the green body of alumina ceramic mandrel and firing it once to obtain a semi-finished porcelain mandrel; the glaze contains the following raw materials in parts by weight: 3 parts of silica sol, 1 part of methyl silane, 15 parts of acetic acid parts, 75 parts of propanol, and 10 parts of prefabricated glass flakes; the processing proc...

Embodiment 3

[0052] A method for manufacturing an alumina porcelain core rod composite insulator, comprising the following steps:

[0053] S1: Mix 20 parts by weight of industrial alumina powder, 10 parts of calcined bauxite powder, 20 parts of feldspar, 35 parts of clay, and 20 parts of calcined kaolin, and wet grind until the particle size of the powder is less than 5 μm Slurry, press the qualified mud to vacuum mud;

[0054] S2: Using a mold forming method to prepare a green body of alumina ceramic core rod;

[0055] S3: Spraying or glazing the green body of the alumina ceramic mandrel and firing it once to obtain a semi-finished porcelain mandrel; the glaze contains the following raw materials in parts by weight: 3 parts of silica sol, 2 parts of methyl silane, and 20 parts of acetic acid parts, 80 parts of propanol, and 20 parts of prefabricated glass flakes; the treatment process of the prefabricated glass flakes is to immerse the glass flakes in a coupling agent solution for 4 hour...

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Abstract

The invention discloses an aluminum oxide porcelain core rod composite insulator, and the insulator comprises an aluminum oxide porcelain core rod and an umbrella skirt outer sleeve wrapping the aluminum oxide porcelain core rod; the aluminum oxide porcelain core rod is cylindrical, and at least one groove is formed in the side face of the aluminum oxide porcelain core rod. A reinforcing part is arranged on the outer side wall of the aluminum oxide porcelain core rod; the reinforcing part comprises grooves or bulges, and the grooves or bulges form a latticed area on the outer surface of the aluminum oxide porcelain core rod in a surrounding manner; the latticed area is provided with a plurality of triangular positioning blocks which are arranged in a disordered manner. The invention further discloses a manufacturing method of the insulator; the structure and the method are combined, so that the bending strength of the insulator is enhanced, and the binding power of the insulator and the silicone rubber umbrella skirt outer sleeve is also improved.

Description

technical field [0001] The invention relates to the field of insulators, in particular to an alumina porcelain core rod composite insulator and a manufacturing method thereof. Background technique [0002] The insulator includes the main body in the middle, the umbrella skirt on the side of the main body, and the installation parts at both ends of the insulator body (the installation parts are generally hardware or flanges); in the prior art, there are two types of insulators: electric porcelain and rubber, and electric porcelain insulators have anti The advantages of good aging resistance, but it has the disadvantages of relatively bulky and high cost; the rubber insulator has the advantages of light weight, but it is not resistant to aging and has the disadvantages of poor strength. In the prior art, there is also a kind of internal resin Core insulators, but the resin core also has the disadvantage of high cost, which affects the normal use and promotion of the insulator....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/32H01B17/38H01B17/50H01B19/00H01B19/04C04B33/26C04B33/13C04B33/04C03C8/00C04B41/86
CPCC03C8/00C04B33/04C04B33/13C04B33/26C04B41/5022C04B41/86C04B2235/3217C04B2235/3463C04B2235/6567C04B2235/661H01B17/32H01B17/38H01B17/50H01B19/00H01B19/04
Inventor 陈清春韩江朱凌峰
Owner 江西正强电瓷电器有限公司
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