A Sanding Process for the Head of a Cylindrical Head Suspension Insulator

A suspension insulator and cylindrical head technology, which is applied in the field of sanding technology on the head of the cylindrical head suspension insulator, can solve the problems of poor combination of dry billet and porcelain sand, affecting the smoothness of the sanding surface, and cracks in porcelain sand, and achieves The effect of uniform distribution of electric strength, enhanced bonding strength, and improved electric strength

Active Publication Date: 2019-11-05
CHONGQING PIGEON ELECTRIC PORCELAIN CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are the following problems in the sanding process of the above-mentioned cylindrical head insulator: 1. The surface of the dry body is coated with porcelain sand and glaze at the same time, and the glaze plays a role of sticking, and the thermal expansion coefficient of the dry body is often greater than that of the porcelain sand, so there is no The intermediate layer undergoes compressive stress transition, the combination of the dry body and the porcelain sand is not good, and there are cracks on the surface of the porcelain sand
2. The glaze needs to be treated first. The glaze contains fine iron slag, which can easily affect the surface smoothness of the sand and make it uneven.

Method used

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  • A Sanding Process for the Head of a Cylindrical Head Suspension Insulator
  • A Sanding Process for the Head of a Cylindrical Head Suspension Insulator
  • A Sanding Process for the Head of a Cylindrical Head Suspension Insulator

Examples

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Embodiment 1

[0028] Embodiment 1: A process of sanding the head of a cylindrical head suspension insulator, including the following steps:

[0029] S1: Proportion of raw materials: First, select the raw materials of porcelain sand and sand-coated glaze. The porcelain sand includes the following components in mass parts: Dongsheng soil 24g, Jingyang soil 10g, low-titanium bauxite 35g, Jiangjin clay clay 10g, carbonic acid Magnesium 4g, high potassium and low iron feldspar 4g;

[0030] The sand-coated glaze includes the following components in parts by mass: 25g of potassium feldspar, 14g of lime powder, 3g of earth, 4g of limestone, 16g of forged talc, 3g of potassium pyroxene, 1g of barium carbonate, 10g of high-strength blank, and 6g of ordinary blank;

[0031] S2: Porcelain sand treatment: prepare and ball mill according to the raw material composition of the above porcelain sand, add water during the ball milling process to form mud; squeeze the mud to form a mud cake, and then vacuum e...

Embodiment 2

[0057] The data of withstand voltage, volume resistivity, cold and heat shock resistance (temperature difference) of Example 2 are the highest, and the withstand voltage and cold and heat resistance of the cylindrical head insulator formed by it are the best.

[0058] Compared with Comparative Example 1, Example 2 has the worst data on the withstand voltage, volume resistivity, and thermal shock resistance (temperature difference) of the cylindrical head insulator produced in Comparative Example 1, and the combination of sand and glaze is not good, and no intermediate transition is set. layer, causing cracks in the glazed layer.

[0059] Compared with Comparative Example 2, Example 2 has better withstand voltage, volume resistivity, thermal shock resistance (temperature difference) data of the cylindrical head insulator formed in Comparative Example 2, but the glaze layer is uneven. The main reason is that in the pre-treatment process of the sand-coated glaze, the iron slag in...

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Abstract

The invention relates to the technical field of aftertreatment of mortar, concrete, artificial stone or ceramic, in particular to a cylindrical head suspension type insulator-head sanding process. The process includes the steps of S1), proportion of raw materials; S2), porcelain sand treatment; S3), pretreatment of sand coated glaze; S4), sieving and deironing; S5), dried-green sanding; S6), dried-green firing. The biding force of a cylindrical head suspension type insulator dried green with porcelain sand is good, and flatness in the sanding surface is achieved.

Description

technical field [0001] The invention belongs to the technical field of post-treatment of mortar, concrete, artificial stone or ceramics, in particular to a sanding process for the head of a cylindrical head suspension insulator. Background technique [0002] Suspended porcelain insulators are used for insulating and fixing wires in high-voltage overhead transmission and distribution lines. Generally, insulator components are assembled into insulator strings for lines of different voltage levels. Among them, suspension insulators can be divided into ordinary type and pollution-resistant type according to their use environment and region. Among them, the pollution-resistant products are divided into four types according to the different umbrella structures: double umbrellas, triple umbrellas, straw hats and bell jars. Suspension insulators can be divided into cylindrical head insulators and conical head insulators according to the shape of the head. [0003] Since the bigges...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C04B35/10C03C8/00C04B41/87
CPCC03C8/00C04B35/10C04B41/5037C04B41/87C04B2235/3206C04B2235/349C04B41/5022
Inventor姚绍明薛征峰罗汉英
OwnerCHONGQING PIGEON ELECTRIC PORCELAIN CO LTD