Manufacture method of solid insulating circuit device

A circuit device, solid insulation technology, applied in conductor/cable insulation, circuits, insulators, etc., can solve the problem that the manufacturing process parameters of epoxy resin material components are not disclosed, the material composition of conductive silicone rubber layer is not disclosed, and electrical conductivity cannot be guaranteed. Silicon rubber layer bonding strength and other issues, to achieve good bonding strength, prevent accidental electric shock, and good bonding effect

Active Publication Date: 2012-05-23
GUANGXI YINHE DECOM ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this process method can cover the surface of the high-voltage live conductor in the epoxy resin solid insulating material to achieve external isolation and insulation, it does not disclose the specific components of the epoxy resin material used and the manufacturing process parameters, nor does it disclose the conductive material. The material of the silicone rubber layer, this process can not prevent the partial discharge of high-voltage conductors in the epoxy resin insulating layer, nor can it guarantee the bonding strength between the epoxy resin insulating layer and the conductive silicone rubber layer on the outer surface

Method used

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  • Manufacture method of solid insulating circuit device
  • Manufacture method of solid insulating circuit device
  • Manufacture method of solid insulating circuit device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: the manufacturing method of solid insulated bus bar, finished product such as figure 1 shown.

[0021] The first step: spray the processed conductor 3 and conductor 6. The sandblasting part is the part in the figure except that the two ends of the conductor 3 are used as plugs and the lower end of the conductor 6, and then remove Oil treatment, washing off the oil stains on the conductor 3 and conductor 6 during processing with detergent, and then fastening the conductor 3 and conductor 6 with bolts 4;

[0022] The second step: on the outside of the assembled conductor 3 and conductor 6, coat a layer of carbon black particles with a thickness of 0.5±0.1 mm and a weight ratio of about 10% with a particle size of 5-10 μm, 0.2% titanic acid Semi-conductive coating layer 1 composed of ester, 60% resin varnish binder, 24% xylene and 6% butanol, and then placed in an incubator at 120±5°C for preheating and curing for 40 minutes to make the conductor 3 and the ...

Embodiment 2

[0027] Embodiment 2: the manufacturing method of high-voltage outlet bushing, finished product such as figure 2 , image 3 shown

[0028] The first step: Spray the processed conductor 2, the sandblasting part is the part except that the two ends of the conductor 2 are made into plugs in the figure, and then perform degreasing treatment, and wash away the conductor 2 with detergent. sticky oil stains;

[0029] Step 2: Coat a layer of carbon black particles with a particle size of 5-10 μm and 0.2% titanate with a thickness of 0.5±0.1 mm on the outer surface of the conductor 2 except for the two ends. , 60% resin varnish adhesive, 24% xylene and 6% butanol to form a semi-conductive coating layer 3, and then put it into an incubator with a temperature of 125±10°C for preheating and curing for 25 minutes to make the conductor 2 The internal and external temperature is uniform, and the semi-conductive coating layer 3 is dried and cured;

[0030] Step 3: Put the preheated and cu...

Embodiment 3

[0034] Embodiment 3: the manufacturing method of circuit breaker pole, finished product such as Figure 4 shown.

[0035] The first step: Spray the processed conductive terminal 2. The sandblasting part is the part except the upper inner hole wall and the middle inner hole wall of the conductive terminal 2 in the figure, and then carry out degreasing treatment and wash with detergent. Remove the oil stains on the conductive terminal 2 during processing;

[0036] Step 2: Coat the outer surface of the conductive terminal 2 with a thickness of 0.5±0.1 mm, which is about 10% by weight of carbon black particles with a particle size of 5-10 μm, 0.2% titanate, and 60% resin varnish Adhesive, 24% xylene and 6% butanol are mixed to form a semiconductive coating layer 3, and then placed in an incubator with a temperature of 120±5°C for preheating and curing for 40 minutes to dry and solidify the semiconductive coating layer;

[0037] Step 3: Pre-install the conductive terminal 2 and t...

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Abstract

The invention discloses a manufacture method of a solid insulating circuit device, which comprises the steps of: cleaning the surface of an electric conductor of a circuit device, preheating and then placing into a heated mould, and injecting a liquid epoxy resin composite material composed of silicon micropowder, epoxy resin and a curing agent into the mould; and taking a molded solid insulatingcircuit device blank from the mould after the epoxy resin composite material in the mould is cured, placing the blank into a baking oven for post-curing treatment, then carrying out sand blasting treatment on the surface of the blank except the part of the interface of the electric conductor to be insulated, coating a layer of conductive coating, carrying out evaporation treatment in the air, andthen carrying out curing treatment in the baking oven to complete the manufacture of the solid insulating circuit device. Compared with the prior art, the invention can be used for effectively decreasing partial discharge values inside the solid insulating circuit device and surface inductive voltage of a product.

Description

technical field [0001] The invention relates to the technical field of manufacturing high-voltage electrical equipment, in particular to a production process for sealing the outer surface of a high-voltage conductor with an epoxy resin material. Background technique [0002] In high-voltage electrical equipment, in order to prevent phase-to-phase electrical breakdown, or short-circuit failure due to phase-to-phase breakdown and discharge, it is necessary to insulate and isolate the surface of the high-voltage live conductor to prevent short-circuit and electric shock from harming humans and animals. The existing insulation methods are: Gas dielectric insulation, liquid dielectric insulation and solid dielectric insulation, among them, the insulation of solid dielectric has high dielectric strength, and the insulation isolation distance is small and more than 100,000. One of the existing solid dielectric materials is epoxy resin material As, the manufacturing process of this...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/06H01B17/58H01B19/00H01H69/00
Inventor 刘桂华周振业李水胜董淑春
Owner GUANGXI YINHE DECOM ELECTRIC
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