This standard specifies the type, requirements, test methods, inspection rules, packaging, marking, storage and transportation of oily silicon steel sheet paint. This standard is applicable to high temperature quick-drying paint made from drying vegetable oil and rosinate dissolved in No. 200 petroleum solvent or turpentine. JB/T 904-1999 Oily silicon steel sheet paint JB/T904-1999 Standard download decompression password: www.bzxz.net

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JB/T9041999
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this The standard is a revision of JB904-80 "1611 Oily Silicon Steel Sheet Knee". The main differences between this standard and JB904-80 are: 1. According to the provisions of 2.2 in GB/T1981-1989, the viscosity measurement temperature in Table 1 is changed from "20±1C" to "23±2°C\. 2. According to GB/ According to the provisions of 2.4 in T1981-1989, the "drying time" in Table 1 should be changed to "paint film drying time; the requirement "12min\" should be changed to "non-stick".
3 According to the provisions of 3.3 in GB/T1981-1989, In Table 1, "Oil resistance\ is changed to "Insulating liquid resistance"; the 24h in the requirement is changed to "The paint will not wrinkle, blister, chip or peel, and the absorbent cotton will not be stained by the paint film becoming soft or broken. ". 4. Table according to the provisions of 3.4 in GB/T1981-1989! "Volume resistivity" in "Normal state" is changed to "Volume resistivity"; "Normal state" is changed to "23±2\.
This standard will replace JB904-80 from the date of implementation. This standard was proposed and coordinated by the National Insulating Materials Standardization Technical Committee. This standard was drafted by: Xi'an Insulation Materials Factory, etc. Drafters of this standard: Liu Hongbin, Li Shulian. This standard was first published in 1966, revised for the first time in 1980, and revised for the second time in 1999. This standard is entrusted to the National Technical Committee for Standardization of Insulating Materials to be responsible for interpretation. 1
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Paint.
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Scope
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JB/T9041999
JB90480||tt| |This standard specifies the models, requirements, test methods, inspection rules, packaging, marking, storage and transportation of oil-based silicon steel sheet paint. This standard applies to high-temperature, quick-drying reference standards made from dry vegetable oil and rosinate and dissolved in No. 200 petroleum solvent or turpentine
The provisions contained in the following standards are quoted in this standard constitute the provisions of this standard. The editions shown were valid at the time of publication: all standards are subject to revision and parties using this standard should explore the possibility of using the latest edition of the standard listed below. GB/T1981-1989
Test methods for solvent-based insulating paint (neqIEC60464-2:1989) GB/T[0579-1989
General rules for inspection, packaging, marking, storage and transportation of solvent-based insulating paint (neqIEC60464-1:1976)
JB/T2197—1996
3 Classification and naming
The classification, naming and model compilation method of electrical insulation material products are in accordance with JB/T2197. This product The model is 1611. 4
Requirements
The performance requirements of this product are shown in Table 1,
Table 1
Serial number
5
Appearance
Properties
Viscosity No. 4 cup, 23±2℃www.bzxz.net
Energy
The total solid content is 105±2℃. 2h
Paint film drying time 210±2%, 12min
Resistance to insulating liquids
105±2 Transformer oil, 24h
Volume resistivity 23±2%
Test method
5.1
Appearance
1999-08-06 Rat
Unit
%
n·m
Please
The paint should be dissolved evenly, should not be opaque, and should not contain impurities. The paint film should be smooth after drying
≥70
60 ±3
non-stick
the paint film should not blister, wrinkle, chip or peel, and should not be damaged by paint The membrane becomes soft or broken, causing the absorbent cotton to become stained
21.0 AI and A2 of Appendix A in T1981-1989 stipulate that the viscosity
5.2
shall be carried out according to the provisions of Appendix B in GB/T1981-1989. 5.3
Solid content
According to the provisions of 2.3 in GB/T1981--1989. 5.4 Paint film drying time
shall be carried out according to the provisions of 2.4 in GB/T1981-1989. Resistance to insulating liquid
5.5
According to the provisions of 3.3 in GB/T1981-1989, 5.6 Volume resistivity
According to the provisions of 3.4 in GB/T1981-1989 5.7 Paint film preparation conditions
According to the provisions of 2.4.2 in GB/T1981--1989. Paint film baking and melting conditions: 210±2℃, 12min. Inspection rules
6
6.1 Factory inspection is items 1, 2, 3, and 4 in Table 1. Others shall be carried out according to the provisions of Chapter 2 of GB/T10579-1989: 6.2
Packaging, marking, storage and transportation
shall be carried out in accordance with Chapters 3 and 4 of GB/T10579-1989. 2
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