CN104629587B - A kind of transposed conductor of transformer low temperature adhesion type self-adhesion paint - Google Patents
A kind of transposed conductor of transformer low temperature adhesion type self-adhesion paint Download PDFInfo
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- CN104629587B CN104629587B CN201510088612.5A CN201510088612A CN104629587B CN 104629587 B CN104629587 B CN 104629587B CN 201510088612 A CN201510088612 A CN 201510088612A CN 104629587 B CN104629587 B CN 104629587B
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Abstract
The present invention provides a kind of transposed conductor of transformer low temperature adhesion type self-adhesion paint, and described self-adhesion enamel-cover includes the raw material components of following weight portion：Epoxy resin 116 ~ 120 weight portion, acid anhydride type curing agent 46 ~ 50 weight portion, epoxy soybean oil 1.6 ~ 2 weight portion, levelling agent 0.3 ~ 0.4 weight portion, dimethylbenzene 100 ~ 120 weight portion.Heretofore described high-tension transformer transposed conductor low temperature adhesion type self-adhesion paint is suitable for application on supertension and extra-high voltage transformer transposed conductor, disclosure satisfy that supertension and the needs of extra-high voltage transformer transposed conductor low temperature adhesion.
Description
Technical field
The invention belongs to paint field is and in particular to a kind of high-tension transformer transposed conductor low temperature adhesion type self-adhesion paint.
Background technology
The patent for 2013105988200 for the domestic applications number provide a kind of fire resistant environment-friendly varnished wire hot melt self-adhering paint and
Its preparation method.It is made up of the raw material of following weight portion：Nylon 12112-15, polystyrene 8～12, polyacrylonitrile 10～
12, E-12 epoxy resin 8～10, methyl diphenylene diisocyanate 2～3, organic siliconresin 7～9, silane coupler 1～2,
Politef 2～3, urethane acrylate 10～15, zinc oxide 3～4, magnesium oxide 1～2, nano silicon 1～2, help
Agent 7～9, dimethylbenzene 100～120, M-and P-cresols 80～90；Varnished wire hot melt self-adhering with the formula preparation disclosed in its invention
Paint can meet heat conditions requirement more than 180 DEG C, and product has good application adaptability, and finished product is bright and clean, the easy demoulding, resistance to
Heat, cohesive force are uniform, deformation resistant.
Traditional self-adhesion paint bonding temperature is higher, typically will reach more than 150 DEG C, but the insulation due to transposed conductor
Paper more than 120 DEG C will heat ageing, thus the self-adhesion paint of this tack temperature cannot be applied on high-power transformer.Although it is existing
The relatively low domestic self-adhesion paint of bonding temperature, but temperature raise during, its adhesion strength can decline rapidly it is therefore desirable to
Develop one kind can be at a lower temperature 110～120 DEG C issue heat bonding, simultaneously transformator use 110 DEG C of temperature
Left and right is maintained to the self-adhesion paint compared with high bond strength, to meet the use requirement of high-power transformer.
Content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of transposed conductor of transformer is with low
Warm adhesion type self-adhesion paint, is used for overcoming self-adhesion paint in prior art can not meet supertension and extra-high voltage transformer transposed conductor
Defect with the needs of low temperature adhesion.
In order to reach foregoing invention purpose and other purposes, the present invention is achieved by the following technical solutions：
A kind of transposed conductor of transformer low temperature adhesion type self-adhesion paint it is characterised in that described self-adhesion enamel-cover include following heavy
The raw material components of amount part：
Preferably, the number-average molecular weight of described epoxy resin is 5000～8000.
Preferably, the softening point of described epoxy resin is 140～150 DEG C.
Preferably, described acid anhydride type curing agent is aromatics isomerization anhydride curing agent.
It is highly preferred that described aromatics isomerization anhydride curing agent is selected from 3- methyl tetrahydro phthalic anhydride, 4- methyl tetrahydro phthalic anhydride,
One or more of methyl hexahydrophthalic anhydride and MNA.
Preferably, described levelling agent is polyacrylate.Number-average molecular weight 5000-6000 of described polyacrylate.
The invention also discloses a kind of side preparing transposed conductor of transformer low temperature adhesion type self-adhesion paint as described above
Method, comprises the following steps：
1) according to the weight portion of each raw material components, first dimethylbenzene is added in reactor, is heated to 45～50 DEG C；
2) it is subsequently added into epoxy resin, insulated and stirred；
3) it is down to room temperature, sequentially adds acid anhydride type curing agent, epoxy soybean oil and levelling agent, stirring reaction obtains high pressure
Transposed conductor of transformer low temperature adhesion type self-adhesion paint.
Preferably, step 3) described in reaction response time be at least 1 hour.
The invention also discloses transposed conductor of transformer as described above is replaced in transformator with low temperature adhesion type self-adhesion paint
Application on wire.
Self-adhesion paint in the present invention is specially adapted to the application on the transposed conductor of transformer of supertension and extra-high voltage.
High-tension transformer transposed conductor low temperature adhesion type self-adhesion paint disclosed in the present invention has the advantages that：
1) bonding temperature of the self-adhesion paint in the present invention is 110～120 DEG C.It is achieved that relatively compared with traditional self-adhesion paint
Low bonding temperature, still keeps the target compared with high bond strength, using in supertension and extra-high voltage transformer simultaneously under high temperature
Globality and mechanical strength and the burst anti-short circuit capability of winding can be improved on transposed conductor.
2) use paint transposed conductor main performance index of the present invention as follows：
A) pliability tack is good；
B) room temperature adhesion strength ＞ 10N/mm2；
C) the adhesion strength ＞ 5N/mm under 110 DEG C of high temperature2.
High-tension transformer transposed conductor low temperature adhesion type self-adhesion paint disclosed in the present invention overcomes of the prior art
Many disadvantages and creative.
Specific embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also be by addition different concrete realities
The mode of applying is carried out or applies, and the every details in this specification can also be based on different viewpoints and application, without departing from
Carry out various modifications and changes under the spirit of the present invention.
Embodiment 1
Self-adhesion enamel-cover disclosed in the present embodiment includes the raw material components of following weight portion：
The number-average molecular weight 5000～8000 of described epoxy resin.
The softening point of described epoxy resin is 140～150 DEG C.
Described acid anhydride type curing agent is 3- methyl tetrahydro phthalic anhydride.
Described levelling agent is selected from polyacrylate；The number-average molecular weight 5000～6000 of described polyacrylate.
Embodiment 2
Self-adhesion enamel-cover disclosed in the present embodiment includes the raw material components of following weight portion：
The number-average molecular weight 5000～8000 of described epoxy resin.
The softening point of described epoxy resin is 140～150 DEG C.
Described acid anhydride type curing agent is 4- methyl tetrahydro phthalic anhydride.
Described levelling agent is selected from polyacrylate；The number-average molecular weight 5000～6000 of described polyacrylate.
Embodiment 3
Self-adhesion enamel-cover disclosed in the present embodiment includes the raw material components of following weight portion：
The number-average molecular weight 5000～8000 of described epoxy resin.
The softening point of described epoxy resin is 140～150 DEG C.
Described acid anhydride type curing agent is methyl hexahydrophthalic anhydride.
Described levelling agent is selected from polyacrylate；The number-average molecular weight 5000～6000 of described polyacrylate.
Embodiment 4
Self-adhesion enamel-cover disclosed in the present embodiment includes the raw material components of following weight portion：
The number-average molecular weight 5000～8000 of described epoxy resin.
The softening point of described epoxy resin is 140～150 DEG C.
Described acid anhydride type curing agent is MNA.
Described levelling agent is selected from polyacrylate；The number-average molecular weight 5000～6000 of described polyacrylate.
Embodiment 5
Self-adhesion enamel-cover disclosed in the present embodiment includes the raw material components of following weight portion：
The number-average molecular weight 5000～8000 of described epoxy resin.
The softening point of described epoxy resin is 140～150 DEG C.
Described acid anhydride type curing agent is 3- methyl tetrahydro phthalic anhydride.
Described levelling agent is selected from polyacrylate；The number-average molecular weight 5000～6000 of described polyacrylate.
Self-adhesion paint in embodiment 1～5 all prepares in accordance with the following methods：
1) according to the weight portion of each raw material components, first dimethylbenzene is added in reactor, is heated to 45～50 DEG C；
2) it is subsequently added into epoxy resin, insulated and stirred；
3) it is down to room temperature, sequentially adds acid anhydride type curing agent, epoxy soybean oil and levelling agent, stirring reaction obtains high pressure
Transposed conductor of transformer low temperature adhesion type self-adhesion paint.
In above-described embodiment, the response time is 1 hour.
To the high-tension transformer transposed conductor prepared in embodiment 1～5 with low temperature adhesion type self-adhesion paint according to following technique
It is coated on supertension and extra-high voltage transformer transposed conductor：, apply line twice taking 1.10mm × 5.00mm acetal enameled sheet wire as a example,
Self-adhesion film thickness 0.01～0.02mm, 150 DEG C of import furnace temperature, 195 DEG C of middle furnace temperature, 210 DEG C of outlet furnace temperature, linear velocity 3m/
min.
The bonding temperature being adopted is 115 DEG C.The bonding time is 48 hours.
Pass through《JB 6758.1-2007 transposed conductor Part I general provision》Test its adhesion strength at room temperature
It is all higher than 10N/mm2；Adhesion strength under 110 DEG C of high temperature is all higher than 5N/mm2.
The key property of self-adhesion paint according to《JBT 7599.1-94 enamelled winding wire insullac part 1：General provision》、
《JBT 7599.14-94 enamelled winding wire insullac the 14th part：Epoxy self-bonding wire enamel》、《GBT 7095.2 enamel-cover copper is flat
Winding wire part 2：120 grades of acetal enameling copper strap wires》In requirement carry out, result such as following table：
Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any ripe
The personage knowing this technology all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
All equivalent modifications becoming or change, must be covered by the claim of the present invention.
Claims (7)
1. a kind of transposed conductor of transformer low temperature adhesion type self-adhesion paint is it is characterised in that described self-adhesion enamel-cover includes following weight
The raw material components of part：
Described acid anhydride type curing agent is aromatics isomerization anhydride curing agent；Described aromatics isomerization anhydride curing agent is selected from 3-
Methyl tetrahydro phthalic anhydride, 4- methyl tetrahydro phthalic anhydride, in methyl hexahydrophthalic anhydride and MNA
Plant or multiple.
2. transposed conductor of transformer as claimed in claim 1 with low temperature adhesion type self-adhesion paint it is characterised in that described epoxy resin
Number-average molecular weight 5000～8000.
3. transposed conductor of transformer as claimed in claim 1 with low temperature adhesion type self-adhesion paint it is characterised in that described epoxy resin
Softening point be 140～150 DEG C.
4. transposed conductor of transformer as claimed in claim 1 with low temperature adhesion type self-adhesion paint it is characterised in that described levelling agent choosing
From polyacrylate；The number-average molecular weight 5000～6000 of described polyacrylate.
5. a kind of method preparing described transposed conductor of transformer low temperature adhesion type self-adhesion paint as arbitrary in Claims 1 to 4, bag
Include following steps：
1) according to the weight portion of each raw material components, first dimethylbenzene is added in reactor, is heated to 45～50 DEG C；
2) epoxy resin, insulated and stirred are added；
3) it is down to room temperature, sequentially adds acid anhydride type curing agent, epoxy soybean oil and levelling agent, stirring reaction obtains high pressure transformation
Device transposed conductor low temperature adhesion type self-adhesion paint.
6. method as claimed in claim 5 is it is characterised in that step 3) described in response time of reaction be at least 1 hour.
7. described transposed conductor of transformer as arbitrary in Claims 1 to 4 low temperature adhesion type self-adhesion paint is in transposed conductor of transformer
On application.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510088612.5A CN104629587B (en) | 2015-02-26 | 2015-02-26 | A kind of transposed conductor of transformer low temperature adhesion type self-adhesion paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510088612.5A CN104629587B (en) | 2015-02-26 | 2015-02-26 | A kind of transposed conductor of transformer low temperature adhesion type self-adhesion paint |
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| Publication Number | Publication Date |
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| CN104629587A CN104629587A (en) | 2015-05-20 |
| CN104629587B true CN104629587B (en) | 2017-03-01 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101925639B1 (en) * | 2011-12-27 | 2018-12-06 | 주식회사 케이씨씨 | Rust Resisting Paint and anticorrosive coating pelicle using the same |
| CN103382352A (en) * | 2013-06-27 | 2013-11-06 | 马鞍山采石矶涂料有限公司 | Filling type heat-conductive insulating impregnating varnish and preparation method thereof |
| CN103382319A (en) * | 2013-06-27 | 2013-11-06 | 马鞍山采石矶涂料有限公司 | Epoxy impregnated resin and preparation method thereof |
| CN103555136A (en) * | 2013-10-25 | 2014-02-05 | 安徽文峰电子科技集团有限公司 | Epoxy impregnating varnish and preparation method thereof |
| CN103897557B (en) * | 2014-03-21 | 2017-06-30 | 溧阳市佳禾电子材料有限公司 | A kind of oil-resisting and heat-resisting electromagnetic wire epoxy self-bonding paint of high intensity and preparation method thereof |
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