CN202332327U - 一种用于大型发电机组的环氧少胶粉云母带 - Google Patents

一种用于大型发电机组的环氧少胶粉云母带 Download PDF

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CN202332327U
CN202332327U CN2011203810360U CN201120381036U CN202332327U CN 202332327 U CN202332327 U CN 202332327U CN 2011203810360 U CN2011203810360 U CN 2011203810360U CN 201120381036 U CN201120381036 U CN 201120381036U CN 202332327 U CN202332327 U CN 202332327U
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mica paper
epoxy
generator set
paper tape
glue
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陆帮荣
陆小粽
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Jintan Huarong Insulating Material Co., Ltd.
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JINTAN HUARONG INSULATING MATERIAL FACTORY
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Abstract

本实用新型涉及一种用于大型发电机组电机线圈的环氧少胶粉云母带,属于绝缘技术领域。环氧少胶粉云母带,由云母纸、无碱玻璃布、环氧胶粘剂,采用单面补强工艺制作而成。产品云母含量高、电气强度好、厚度薄,包裹线圈时可减少包绕层数、降低云母带用量,有助于提高电机比功率、提升发电机的经济性。

Description

一种用于大型发电机组的环氧少胶粉云母带
技术领域
本实用新型涉及一种用于大型发电机组电机线圈的主绝缘材料,属于绝缘技术领域,特别涉及一种高电气强度的环氧少胶粉云母带。 
背景技术
大型发电机组已成为国内发电机行业发展的主流方向,其市场份额不断扩大。在大型发电机组制造过程中,因云母含量高、产品厚度薄、电机比功率高,少胶真空压力浸渍绝缘系统(简称VPI绝缘系统)应用日益广泛。 
少胶粉云母带是VPI绝缘系统的重要组成,其性能直接影响发电机的运转稳定性和运营寿命。国内现有的普通产品,电气强度不佳,无法满足市场需求。 
发明内容
本实用新型的目的是:针对上述技术不足,提供一种环氧少胶粉云母带,电气强度高,可应用于大型发电机组的VPI绝缘系统制造。 
本实用新型是通过下列技术方案实现的: 
一种应用于大型发电机组电机线圈绝缘的环氧少胶粉云母带,由云母纸、无碱玻璃布、环氧胶粘剂采用单面补强工艺制作而成。无碱玻璃布单面涂上环氧胶粘剂后,即与云母纸进行复合;再经过烘箱,控制温度110-120℃,促使溶剂挥发;最后经收卷、分切而得到环氧少胶粉云母带。 
所述的环氧少胶粉云母带,采用的云母纸是定量180±10g/m2的非煅烧型云母纸。 
所述的环氧少胶粉云母带,采用的无碱玻璃布的厚度为0.03mm,定量20±2g/m2。 
所述的环氧少胶粉云母带,采用的环氧胶粘剂的质量是少胶粉云母带总质量的5-10%。 
所述的环氧少胶粉云母带,采用的环氧少胶粉云母带的总厚度为0.13±0.01mm。 
本实用新型的优点是: 
1、普通产品的云母含量60-70%,本实用新型的云母含量高达80-85%,电气强度高,绝缘性能优良。 
2、因产品电气强度高、厚度薄,包裹线圈时可减少包绕层数、降低云母带用量,有助于 提高电机比功率、提升发电机的经济性。 
附图说明
附图是本环氧少胶粉云母带的结构示意图。 
其中:1-云母纸,2-环氧胶粘剂,3-无碱玻璃布。 
具体实施方式
结合附图,对本实用新型进行说明。 
一种应用于大型发电机组电机线圈绝缘的环氧少胶粉云母带,由云母纸、无碱玻璃布、环氧胶粘剂采用单面补强工艺制作而成。 
采用的云母纸是定量185g/m2的非煅烧型云母纸。 
采用的无碱玻璃布的厚度为0.03mm,定量19g/m2。 
采用的环氧胶粘剂的质量是少胶粉云母带总质量的8%。 
无碱玻璃布3单面涂上环氧胶粘剂2后,即与云母纸1进行复合;再经过烘箱,控制温度110-120℃,促使溶剂挥发;最后经收卷、分切而得到环氧少胶粉云母带。 
所生产的环氧少胶粉云母带,厚度0.13mm,介电常数33MV/m,拉伸强度84N/10mm。 

Claims (5)

1.一种应用于大型发电机组电机线圈绝缘的环氧少胶粉云母带,其特征在于所述环氧少胶粉云母带由云母纸、无碱玻璃布、环氧胶粘剂采用单面补强工艺制作而成,环氧胶粘剂位于云母纸和无碱玻璃布的中间。
2.根据权利要求1所述的应用于大型发电机组电机线圈绝缘的环氧少胶粉云母带,其特征在于所述云母纸是非煅烧型云母纸,定量180±10g/m2
3.根据权利要求1所述的应用于大型发电机组电机线圈绝缘的环氧少胶粉云母带,其特征在于所述无碱玻璃布的厚度为0.03mm,定量20±2g/m2
4.根据权利要求1所述的应用于大型发电机组电机线圈绝缘的环氧少胶粉云母带,其特征在于所述环氧胶粘剂的质量是少胶粉云母带总质量的5-10%。
5.根据权利要求1所述的应用于大型发电机组电机线圈绝缘的环氧少胶粉云母带,其特征在于所述环氧少胶粉云母带的总厚度为0.13±0.01mm。 
CN2011203810360U 2011-10-10 2011-10-10 一种用于大型发电机组的环氧少胶粉云母带 Expired - Fee Related CN202332327U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10848027B2 (en) 2016-11-17 2020-11-24 General Electric Company Electrical insulation systems and insulated components for electrical machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10848027B2 (en) 2016-11-17 2020-11-24 General Electric Company Electrical insulation systems and insulated components for electrical machine

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Address after: 213231 Jintan City, Jiangsu province head Industrial Park

Patentee after: Jintan Huarong Insulating Material Co., Ltd.

Address before: 213231 Jintan City, Jiangsu province head Industrial Park

Patentee before: Jintan Huarong Insulating Material Factory

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120711

Termination date: 20151010

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