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Manufacture method of high-strength disc porcelain insulator

A technology of porcelain insulators and insulators, which is applied in the field of manufacturing high-strength disc-shaped porcelain insulators, can solve problems such as glaze cracking, low strength of the insulator body, and structural strength limitations, so as to improve axial tensile and bending strength, improve Anti-fouling and anti-flash ability, the effect of improving mechanical properties

Active Publication Date: 2018-09-14
江西省萍乡市玻瓷高压绝缘子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the analysis of relevant data, there are two main problems in the current disc suspension porcelain insulators: one is the insulator body (green body) strength is not high and the structural strength of the combination of conventional cement, steel cap and steel foot is limited , safety, stability, service life, etc. need to be improved; second, the glaze layer of disc-shaped suspension porcelain insulators is prone to aging, cracking, or even falling off, and the ability to resist flash and durable pollution is not strong
Not long service life

Method used

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  • Manufacture method of high-strength disc porcelain insulator
  • Manufacture method of high-strength disc porcelain insulator

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Example 1, in figure 1 and figure 2Among them, a high-strength disc-shaped porcelain insulator (specification model XP-70T), with a height of 146 mm and a maximum disc diameter of 255 mm), it includes an insulator body, a pressure plate 1, a steel cap 2 and a steel foot 12, the steel cap The high-strength disc-shaped porcelain insulator body includes a core head 4, a core bone 6, an upper shed 5 and a lower shed 7, and the upper shed and the lower shed The sheds have an upper shed outer surface 51 and a lower shed shed outer surface 71 respectively, and the upper shed shed outer surface 51 and the lower shed shed outer surface 71 are radii of curvature R1 (135-140mm) and R2 (120-130mm) respectively. Convex spherical surface, wherein R1 is greater than R2, the end face of the core head is provided with an annular groove 11 and a cross groove 10, a glue layer 3 is arranged between the end face of the core head and the steel cap, the cross section of the ring groove 11 a...

Embodiment 2

[0049] exist figure 1 and figure 2 Among them, a high-strength disc-shaped porcelain insulator (specification model XP-40C), with a height of 140 mm and a maximum disc diameter of 220 mm), it includes an insulator body, a pressure plate 1, a steel cap 2 and a steel foot 12, and the steel cap and the steel feet are glued and connected to the two ends of the insulator body with an adhesive layer. The high-strength disc-shaped porcelain insulator body includes a core head 4, a core bone 6, an upper shed 5 and a lower shed 7. The upper shed and the lower shed shed respectively have an upper shed shed outer surface 51 and a lower shed shed outer surface 71, and the upper shed shed outer surface 51 and the lower shed shed outer surface 71 are respectively R1 (125-130mm) and R2 (110- 120mm) convex spherical surface, wherein R1 is greater than R2, an annular groove 11 and a cross groove 10 are arranged on the end surface of the core head, a glue layer 3 is formed between the end su...

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Abstract

The invention discloses a high-strength disc porcelain insulator. The high-strength disc porcelain insulator comprises an insulator body, a steel cap and a steel pin, wherein the steel cap and the steep pin are in gluing connection with two ends of the insulator body through gluing layers; the insulator body of the high-strength disc porcelain insulator comprises a core head, a core bar, an upperskirt and a lower skirt, and is prepared from 20wt%-40wt% of calcined bauxite, 20wt%-40wt% of clay, 10wt%-15wt% of Nankeng china clay from Pingxiang, 5wt%-10wt% of tungsten pit mud from Yichun, 10wt%-20wt% of feldspar, 3wt%-5wt% of Dazhang clay from Liling and 3wt%-5wt% of black clay from Guangdong through mixing, dehydration clay squeezing, vacuum pugging, blank forming, fettling sintering, glazing, firing and gluing. Through structural and shape improvement, raw material selection and formula and process adjustment, skirt surfaces are processed by reasonably selecting raw materials with specific performance on the premise that material cost is not increased and a product does not get hard or brittle, and mechanical strength and various electrical properties of the insulator body are improved.

Description

technical field [0001] The invention relates to porcelain insulators, in particular to a method for manufacturing high-strength disc-shaped porcelain insulators for 110KV high-voltage lines. Background technique [0002] Disk-shaped suspension porcelain insulators are the most commonly used and most important line insulators. They generally play the role of insulation and fixing in high-voltage overhead lines. They are mainly composed of iron caps, steel feet, and adhesives for porcelain parts with sheds. Porcelain insulators are an important part of transmission lines. They are electrical insulators and important structural supports. The insulation and mechanical properties of porcelain insulators and the rationality of their configuration directly affect the safe and stable operation of lines. In terms of mechanical properties, porcelain insulators The load is mainly subjected to axial and partial radial tensile loads. The line insulator must bear the tensile stress determ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/00
CPCH01B19/00
Inventor 欧阳志军梁高炳刘定国欧阳建军苏冬
Owner 江西省萍乡市玻瓷高压绝缘子有限公司
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