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Coating method of RTV coating of supporting column insulator

A post insulator and coating method technology, applied in the direction of insulators, electrical components, circuits, etc., can solve the problems of paint dripping, long interval time, low production efficiency, etc., and achieve the effect of low environmental protection and safety pressure, and small health impact

Active Publication Date: 2015-07-29
CHENGDU TALY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the special structure and complex shape of the pillar insulators, the deep grooves between the umbrella pieces, dead angles are prone to appear during the spraying process, and the spraying is uneven, the thickness is not easy to grasp, and it is easy to cause paint dripping, crusting, accumulation and bubbles, and the quality is poor and not good. Stablize
Some spraying processes need to be sprayed and dried after being sprayed and dried, and repeated many times, the interval is long, time-consuming and labor-intensive, and the production efficiency is relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of coating method of pillar insulator RTV paint has the following steps:

[0038] (1) Clean the post insulators and pre-treat the metal fittings;

[0039] (2) Inspection and installation: connect the post insulator to the head of the equipment, and put the paint into the container; (inspection

[0040] Whether the post insulator has a certificate of conformity, whether the surface of the insulator has defects, cracks, damage, pores, mechanical impurities, oil stains that are difficult to clean), and the viscosity of the paint is 4# cup for 15 minutes.

[0041] (3) Coating: dip the post insulator in the paint for spin coating; the spin coating steps are dipping,

[0042] In the steps of material rejection and edge trimming, the solid content of the paint is 60%;

[0043] The impregnating step is to install the connection post insulator on the head of the coating equipment and place it in the horizontal direction.

[0044] Dip the insulator into the co...

Embodiment 2

[0055] Other steps are as in Example 1. The viscosity of the coating is to coat the 4# cup for 12 minutes, and the solid content of the coating is 55%. The dipping step is to install the connecting post insulator on the head of the coating equipment, place it in the horizontal direction, and then immerse in the coating and spin coating. Rotation speed 20r / min, time 2min.

[0056] The material throwing step is to make the insulator completely leave the coating liquid surface and then rotate for 5min at a speed of 50r / min.

[0057] The edge finishing step is to place the insulator in the horizontal direction while rotating, the surface dry time is 80min, and the speed is 5r / min.

[0058] The curing time is 48 hours, the temperature is 23°C, and the humidity is 65%;

Embodiment 3

[0060] Other steps are as in Example 1. The viscosity of the coating is to coat the 4# cup for 18 minutes, and the solid content of the coating is 65%. The dipping step is to install the connecting post insulator on the head of the coating equipment, place it in the horizontal direction, and then immerse in the coating to rotate the coating. The speed is 10r / min, and the time is 2.5min; the step of throwing the material is to make the insulator completely leave the coating liquid surface and then rotate for 3min, and the speed is 60r / min.

[0061] The edge finishing step is to place the insulator in the horizontal direction while rotating, the time is 60min, and the speed is 8r / min.

[0062] Standing curing time 72hr, temperature 20℃, humidity 60%;

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PUM

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Abstract

The invention belongs to the field of insulators, and in particular relates to a coating method of a RTV coating of a supporting column insulator. The method includes the supporting column insulator, a coating device, the coating, a coating tank and related tools and devices. The method is characterized by comprising the steps of pre-treating the supporting column insulator; detecting the supporting column insulator; feeding; rotating and dipping into the coating to coat; discharging; detecting the appearance; standing, curing and storing; detecting and then packing; storing or transporting. The method is simple to operate, small in cost, small in VOC emission, easy to control the quality, high in production rate, smooth in coating appearance, free of bubble, free of drops, free of accumulation, and consistent in thickness.

Description

technical field [0001] The invention belongs to the field of insulators, and in particular relates to a coating method of RTV paint for post insulators. Background technique [0002] Post insulators are widely used in substations and are commonly used outdoor insulators. Their application places determine that they need to have good anti-pollution performance. In order to avoid the occurrence of pollution flashover accidents, various measures such as adjustment of creepage distance, water flushing, semiconductor glaze insulators and spraying of hydrophobic coatings are generally adopted. However, in the anti-pollution flashing of substations, the adjustment is limited, and it takes time and money to replace equipment or external insulation components. Water flushing, while effective, is very laborious to maintain. In order to improve the electrical performance of porcelain glass insulators under polluted and wet conditions, relevant measures such as spraying RTV coatings o...

Claims

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Application Information

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IPC IPC(8): H01B19/04
Inventor 陈群跃张先银陶云峰周宁方辉
Owner CHENGDU TALY TECH CO LTD
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