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High voltage-resistant insulation powder for busbar and preparation method of powder

An insulating powder, high pressure technology, applied in powder coatings, coatings, epoxy coatings, etc., can solve the problems of low production efficiency, low temperature resistance, limited use environment, etc. Good insulation performance and the effect of meeting market demand

Pending Publication Date: 2020-02-04
FUJIAN WANAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of the manufacturing industry, the market demand for transformers and power distribution cabinets is also increasing. Among them, the demand for ABB connecting busbars and reinforced busbars is also increasing. The traditional low-voltage injection molding process has low production efficiency. And after forming, the temperature resistance level is low and the use environment is limited

Method used

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  • High voltage-resistant insulation powder for busbar and preparation method of powder
  • High voltage-resistant insulation powder for busbar and preparation method of powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Preparation of high withstand voltage insulating powder for busbars

[0026] Raw materials: see Table 1.

[0027] Preparation method: Put the above raw materials into the mixing tank and stir quickly for 5 minutes, put the mixed raw materials into the twin-screw extruder to melt and mix them for extrusion. The temperature shall not be higher than 100 degrees, and the temperature of the raw material melting outlet shall not be higher than 130 degrees. After extrusion, the temperature shall be rapidly cooled to below 30 degrees within 30 seconds, and then the powder shall be ground to an appropriate particle size (40-50 μm) according to the customer's needs, packed and placed in an air-conditioned room ( 25 degrees). Obtain high withstand voltage insulation powder for busbars.

[0028] Effect verification: use the busbar high withstand voltage insulating powder obtained in Example 1 and the powder obtained in Comparative Example 1 to measure their performance...

Embodiment 2

[0031] Example 2: Preparation of high withstand voltage insulating powder for busbars

[0032] Raw materials: see Table 1.

[0033] Preparation method: with embodiment 1.

Embodiment 3

[0034] Example 3: Preparation of high withstand voltage insulating powder for busbars

[0035] Raw materials: see Table 1.

[0036] Preparation method: with embodiment 1.

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Abstract

The invention discloses high voltage-resistant insulation powder for a busbar and a preparation method of the powder. The powder comprises the following components in percentages by weight: 40-55% ofepoxy resin, 8-15% of a phenolic curing agent, 0.6-1% of a levelling agent, 30-45% of calcium carbonate, 3-6% of a pigment, and 0.05-0.1% of a catalyst. The high voltage-resistant insulation powder for the busbar can realize automatic coating of a fluidized bed in the production process, saves time and labor, and has high efficiency, high voltage-resistant strength and good insulation performance,and at the same time, the coating can realize busbar installation requirements under low-temperature conditions and can realize flexible cutting, so that the application range of the product is expanded, and the market demand can be better met.

Description

technical field [0001] The invention relates to the field of busbar high withstand voltage compositions, in particular to a busbar high withstand voltage insulating powder and a preparation method thereof. Background technique [0002] With the development of the manufacturing industry, the market demand for transformers and power distribution cabinets is also increasing. Among them, the demand for ABB connecting busbars and reinforced busbars is also increasing. The traditional low-voltage injection molding process has low production efficiency. And after forming, the temperature resistance level is low and the use environment is limited. Contents of the invention [0003] In view of the above disadvantages, the present invention provides a fluidized bed automatic coating in the production process, which saves time and effort, high efficiency, high pressure resistance, and good insulation performance. It can realize flexible cutting, expand the application range of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/03C09D5/25
CPCC08K2003/265C09D5/00C09D5/03C09D163/00C08K3/26
Inventor 李文军马金川倪文彬张国强李海熊波
Owner FUJIAN WANAN IND