A kind of preparation method of high-strength post insulator

Abstract

The invention discloses a preparation method of a high-strength column insulator, comprising the following steps: step 1, weighing raw materials: 40-60 parts of field spar, 30-50 parts of modified glass fiber, and 5-10 parts of cobalt silicide , 4-8 parts of nickel silicide, 5-10 parts of silicon dioxide additive, and 2-6 parts of polyethylene. The raw materials used in the column insulator of the present invention are matched with each other and coordinated with each other, so that the material still has strong strength performance under high pressure, and the ratio of the modified glass fiber to the raw material is better after modification. After modification, the silicon additive not only has high activity, but also improves the contact effect between raw materials in the material. At the same time, after being treated with a dielectric modification solution, it can significantly improve the dielectric properties of the insulator. The added low-density polyethylene, high-density polyethylene Ethylene can further improve the dielectric properties of the material, thereby making the performance of the insulator more perfect.

Description

technical field [0001] The invention relates to the technical field of insulators, in particular to a method for preparing a high-strength post-type insulator. Background technique [0002] Porcelain post insulators for high-voltage lines A line post insulator is a steel insulator consisting of one or more insulators permanently glued on a metal base, sometimes with a cap, and can be double mounted on a metal base. The head bolt or one or several bolts are rigidly mounted on the supporting structure. It is used for insulating and supporting wires in AC power lines with a nominal voltage higher than 1000V, a frequency not higher than 100Hz, and an altitude not higher than 1000m. between 40°C. Line post insulators can replace pin insulators. Pin insulators are B-type insulators, which are prone to breakdown and damage during operation. Tempered glass insulators will self-destruct at this time, while porcelain insulators will not. [0003] When the post insulators in the pri...

AI Technical Summary

Problems solved by technology

[0003] The strength performance of post insulators in the prior art will be significantly reduced under high voltage for a long time, thereby limiting the use effect of the insulators

[0004] Chinese patent document CN108034216A discloses a post insulator with increased creepage distance, which includes an insulator body, and the components of the insulator body include 20-40 parts by weight of polycarbonate resin, 10-20 parts of plasticizer, and 5 parts of aluminum hydroxide. -15 parts, 4-12 parts of clay, 3-9 parts of kaolin, 2-8 parts of microcrystalline wax, 1-4 parts of antioxidant RD, 4-10 parts of magnesium hydroxide, 5-12 parts of fumed silica, expanded graphite 2-6 parts, 10-20 parts of muscovite, 3-12 parts of silica powder, 4-12 parts of field spar, 4-10 parts of polydimethylsiloxane, 8-16 parts of BIPB crosslinking agent, the raw material More conventional, under high voltage for a long time, the strength performance will be reduced