JB/T 7095-1993 Imidium epoxy impregnation varnish

This standard specifies the model, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of imide epoxy impregnation varnish. This standard applies to imide epoxy impregnation varnish made by reacting imide compounds and epoxy compounds in an organic solvent, toluene. JB/T 7095-1993 Imine epoxy impregnation varnish JB/T7095-1993 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T7095-1993
Imine Epoxy Impregnation Varnish
Published on October 8, 1993
Ministry of Machinery Industry of the People's Republic of China
Implemented on January 1, 1994
Mechanical Industry Standard of the People's Republic of China
Imine Epoxy Impregnation Varnish
Subject Content and Scope of Application
JB/T 7095 -1993
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of imide epoxy impregnation varnish.
This standard applies to imide epoxy impregnation varnish prepared by reacting imide compounds and epoxy compounds and dissolving them in toluene, an organic solvent. 2
Cited standards
GB1981
GB10579
GB11027
Product categories
Test methods for solvent-containing insulating varnishes
General rules for inspection, packaging, marking, storage and transportation of solvent-containing insulating varnishes Technical conditions for thermosetting impregnation varnishes
Imidazole epoxy impregnation varnishes are divided into two types according to different viscosity ranges; the low-viscosity model is 1041-1.
The high-viscosity model is 10412.
Technical requirements
The technical requirements for 1041 imide epoxy impregnation varnishes shall comply with the provisions of Table 1. Table
Viscosity, No. 4 viscometer, 23±1C
Body content, 130±2℃, 1h
Drying time 135±2℃
Thick layer assimilation capacity
Stability of paint in bulk container
Effect of paint on wire wrapping
Adhesion strength
Electrical strength
155±2c
Before immersion, 23±2℃
155±2℃
After immersion for 24h
Approved by the Ministry of Machinery Industry on October 8, 1993
1041-1
1041-2
The paint liquid is uniform and should not be emulsified, Contains no organic impurities, and the paint film is relatively smooth after drying 16±4
35±10
Not worse than S1U1I4.2, uniform
Agreed by both parties
Viscosity increase value does not exceed 4 times of the nominal value
Pencil hardness is not softer than H
1994-01-01 implementation
Indicator name
Before immersion, 23±2℃
155±2c
Volume resistivity
After immersion for 7h
Solvent vapor resistance
Temperature index
Test method
5.1 Appearance
Perform according to Appendix A of GB1981.
The appearance of the paint liquid shall be carried out according to A1.
The appearance of the film shall be carried out according to A2.
5.2 Viscosity
According to Appendix B of GB1981.
5.3 Solid content
According to Article 2.3 of GB1981.
5.4 Drying time
According to Article 2.4 of GB1981.
5.5 Thick layer curing ability
JB/T 7095 - 1993
Continued Table 1
1041-1
>1.0×10*
>1.0×10t
1041-2
No change in adhesion, no peeling, no blistering, no sagging, no stickiness (or slightly sticky), at least two of the five solvent tests passed>155
According to Article 2.7 of GB1981, the baking conditions for 1041-1 are: 130±2℃, 5h, and 1041-2 are: room temperature rises to 40℃ and then rises to 70℃ at 10℃/h and holds for 16h, then rises to 130℃ at 10℃/h and holds for 5h. 5.6 Flash point
According to Article 2.5 of GB1981.
5.7 Stability of paint in bulk container
According to Article 2.10 of GB1981. The additional solvent of 1041-1 is toluene, and the additional solvent of 1041-2 is xylene-butanol solvent, the ratio is xylene:butanol=4:1
5.8 Effect of paint on enameled wire
According to Article 2.11 of GB1981, using 1.0mm diameter 155 grade enameled round pot wire. 5.9 Bonding strength
According to Article 3.2 of GB1981. The spiral coil method is recommended. Baking conditions are: first pass, 110±2℃, 1h, add 130±2℃, 1h, add 155±2℃, 1h; second pass 110±2℃, 1h, add 130±2℃, 1h, add 155±2℃, 6h. 5.10 Electric strength
According to Article 3.5 of GB1981. The coating film preparation conditions are the same as Article 5.9. 5.11
Volume conductivity
According to Article 3.4 of GB1981. The coating film preparation conditions are the same as Article 5.9. 5.12 Solvent vapor resistance
According to Appendix E of GB1981. Glass cloth is selected as the substrate, and the coating film preparation conditions are the same as Article 5.9. 5.13 Temperature index
According to Note 1) of GB11027.
Inspection rules
JB/T7095-1993
The factory inspection items are the normal technical requirements in items 1, 2, 3 and 10 and 11 in Table 1 of Chapter 4 of this standard. The type inspection items are 6.1
All items from 1 to 12. Item 13 does not need to be repeated when there is no major change in the product composition and process. 6.2 Others should comply with the relevant provisions of GB10579. Marking, packaging, transportation and storage
The storage period of the product is 6 months from the date of leaving the factory. 7.1
7.2 Others shall be carried out in accordance with the relevant provisions of GB10579. Additional remarks:
This standard was proposed by the National Technical Committee for Standardization of Insulating Materials. This standard is under the jurisdiction of Guilin Electric Science Research Institute of the Ministry of Machinery Industry. This standard was drafted by Dongfang Insulating Materials Factory, Harbin Insulating Materials Factory participated in the drafting, and Zhao Ping was the main drafter of this standard.
People's Republic of China
Mechanical Industry StandardbzxZ.net
Imine Epoxy Impregnation Varnish
JB/T7095-1993
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2 Shouti South Road, Beijing
Format 880×1230
Edition X, XX, 19XX
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Printing sheets X/X
Printing X, XX, 19XX
Price XXX.XX Yuan
XX-XXX
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