Method for manufacturing silicon rubber compound insulator

Abstract

The invention provides a method for manufacturing a silicon rubber compound insulator. The method comprises the following steps: plating zinc on hardware: the upper end hardware and the lower end hardware are plated with zinc respectively; milling an epoxy glass fiber thread core rod; pressing and connecting the zinc-plating hardware and the epoxy glass fiber thread core rod: the zinc-plating hardware and the epoxy glass fiber thread core rod which are pressed and connected are put in a drying oven for drying and pre-heating; evenly coating a coupler on the surface of the pre-heated epoxy glass fiber thread core rod; putting the epoxy glass fiber thread core rod of which the surface is coated with the coupler and silicon glue in a mold cavity for mold pressing; putting a mold pressing product in a high-temperature cabinet for secondary sulfuration; and passing a test to obtain a finished product. The method has the advantages of scientific process, simple operation steps, strong practicability and scientific improvement on the prior process; and the insulator prepared by the method has the remarkable advantages of improving all technological properties, strong stretch resistance and torsion resistance, good corrosion resistance and insulating property and long service life.

Description

technical field [0001] The invention relates to a silicone rubber composite insulator used in high and low voltage lines and electrical equipment, in particular to a method for making the silicone rubber composite insulator. Background technique [0002] Usually, the insulators used in high-voltage and low-voltage lines and electrical equipment are mostly ceramic insulators. The ceramic insulators are large in size, heavy in weight, easy to be damaged, difficult to install, and have poor anti-fouling performance, and are prone to lightning. At the same time, there are certain defects in its tensile and torsion resistance. [0003] With the development of high and low voltage electrical products, silicone rubber composite insulators have appeared in recent years. However, due to differences in processing and manufacturing techniques, some technical performance indicators of existing silicone rubber composite insulators cannot reach the expected design effect; for example: 1....

AI Technical Summary

Problems solved by technology

[0002] Usually, the insulators used in high-voltage and low-voltage lines and electrical equipment are mostly ceramic insulators. The ceramic insulators are large in size, heavy in weight, easy to be damaged, difficult to install, and have poor anti-fouling performance, and are prone to lightning. At the same time, there are certain defects in its tensile and torsional capabilities.

[0003] With the development of high-voltage and low-voltage electrical products, silicone rubber composite insulators have appeared in recent years. However, due to differences in processing and manufacturing techniques, some technical performance indicators of existing silicone rubber composite insulators cannot reach the expected design effect; for example: 1. Improper connection process between the metal fittings at both ends of the insulator and the mandrel will affect the tensile strength; 2. The difference in the vulcanization process will affect the stability of the insulator structure, making it anti-corrosion, acid-proof, alkali-proof, and anti-electric corrosion performance 3. Improper molding process of epoxy glass fiber mandrel and silicone rubber umbrella shed will cause rainwater to permeate the product during the rainy season, shorten the creepage distance, and directly affect the insulation performance of the insulator

[0004] Through the above analysis, the existing silicone rubber composite insulators have obvious technical performance defects, that is, the difference in processing and manufacturing technology directly affects the technical indicators of the silicone rubber composite insulator, and will make the silicone rubber composite insulator's stretch resistance, Torsion resistance, corrosion resistance, insulation, service life, etc. are affected

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