High-resistance silicon rubber corona resistant material for high-voltage motor

A high-voltage motor and silicone rubber technology, applied in the chemical industry, climate sustainability, sustainable manufacturing/processing, etc., can solve the problems of high-resistance anti-corona materials with insufficient stability

Active Publication Date: 2013-07-10
永济优耐特绝缘材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the current high-resistance anti-corona materials are easily affected by the environment and their performance is not stable enough, the invention provides a high-resistance anti-corona material for silicon rubber used in high-voltage motors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Example 1 A low-resistance silicone rubber anti-corona material for high-voltage motors is manufactured by the following process: (a) Mixing a tackifier and raw silicone rubber on a rubber mixer, the tackifier is Polyborate siloxane, the quality of the tackifier is 6% of the quality of the silicone rubber raw rubber; the tackifier and the silicone rubber raw rubber are mixed evenly, and then tri-n-butyl borate as a plasticizer is added to mix until the mixture is uniform ; The quality of the plasticizer is 2% of the mass of raw silicone rubber; (b) Add silicon carbide powder whose surface has been activated to the aforementioned homogeneously mixed material, and knead until uniform, and the silicon carbide powder The mass is 5 times the mass of raw silicone rubber, and the particle size is 14 μm; (c) 1.2% vulcanizing agent with a mass of raw silicone rubber is added for mixing, and the vulcanizing agent is 2,4 dichlorobenzyl peroxide After mixing evenly, place the obtai...

Embodiment 2

[0010] Example 2 A low-resistance silicone rubber anti-corona material for high-voltage motors is manufactured by the following process: (a) Mixing a tackifier and raw silicone rubber on a rubber mixer, the tackifier is Polyborate siloxane, the quality of the tackifier is 4% of the quality of the silicone rubber raw rubber; the tackifier and the silicone rubber raw rubber are mixed evenly, and then tri-n-butyl borate is added as a plasticizer for mixing until the mixture is uniform ; The quality of the plasticizer is 6% of the mass of raw silicone rubber; (b) Add silicon carbide powder whose surface has been activated to the aforementioned homogeneously mixed material, and knead until uniform, and the silicon carbide powder The mass is twice the mass of raw silicone rubber, and the particle size is 10 μm; (c) 1.4% vulcanizing agent whose mass is the mass of raw silicone rubber is added for mixing, and the vulcanizing agent is 2,4 dichlorobenzyl peroxide After mixing evenly, pl...

Embodiment 3

[0011] Example 3 A low-resistance silicone rubber anti-corona material for high-voltage motors is manufactured by the following process: (a) Mixing a tackifier and raw silicone rubber on a rubber mixer, the tackifier is Polyborate siloxane, the quality of the tackifier is 5% of the mass of the silicone rubber raw rubber; the tackifier and the silicone rubber raw rubber are mixed evenly, and then tri-n-butyl borate as a plasticizer is added to mix until they are evenly mixed ; The quality of the plasticizer is 4% of the mass of raw silicone rubber; (b) Add silicon carbide powder whose surface has been activated to the aforementioned homogeneously mixed material, and knead until uniform, and the silicon carbide powder The mass is 4 times the mass of raw silicone rubber, and the particle size is 18 μm; (c) 1.6% vulcanizing agent whose mass is the mass of raw silicone rubber is added for mixing, and the vulcanizing agent is 2,4 dichlorobenzyl peroxide After mixing evenly, place th...

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Abstract

The invention relates to electrical insulating materials and in particular relates to a high-resistance silicon rubber corona resistant material for a high-voltage motor, which can be used for solving the technical problem that the existing motor corona resistant material is unstable in performance due to influences from working environments. The high-resistance silicon rubber corona resistant material for the high-voltage motor is manufactured by adopting the following process: mixing uniformly a tackifier with silicon rubber on a rubber mixing mill; then adding a plasticizer and mixing uniformly; adding silicon carbide powder subjected to surface activation treatment to the uniformly mixed substance and mixing uniformly; adding a vulcanizing agent and mixing; mixing the vulcanizing agent in the placed silicon rubber mixture and uniformly mixing; heating up and vulcanizing the re-mixed silicon rubber mixture and cooling the heated and vulcanized silicon rubber mixture to obtain the low-resistance silicon rubber corona resistant material for the high-voltage motor. The high-resistance silicon rubber corona resistant material for the high-voltage motor disclosed by the invention is applicable to corona resistant structures of a high-voltage electric generator, a high-voltage motor, a high-voltage variable frequency speed regulation motor and a high-voltage large-capacitance wind driven generator.

Description

technical field [0001] The invention relates to the field of electrical insulating materials, in particular to a silicone rubber high-resistance anti-corona material for high-voltage motors. Background technique [0002] Anti-corona materials are indispensable and important materials for high-voltage generators and high-voltage motor coils with a voltage level of 6kv and above. When the motor is running, the potential on the surface of the coil is not evenly distributed, and the potential at the slot is the highest. This is because the coil end The leakage current on the outer insulating surface flows to the iron core, so the voltage drop on the insulating surface at the outlet of the slot is the largest, and the voltage between the coil surface and the iron core has reached the critical state of corona for a 6kv class motor, and for a motor with a higher voltage class If the corona initiation critical voltage has already been exceeded, corona will occur. If the anti-coron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/14C08K13/06C08K9/00C08K3/34C08K5/55C08K5/14C08J3/24
CPCY02P20/10
Inventor 司増启薛春如苗巧燕武靖荣孙晓辉
Owner 永济优耐特绝缘材料有限责任公司
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