CN1155465A - Technological parameters and prescription of mixed materials of epoxy terminals of electric locomotive transformer - Google Patents
Technological parameters and prescription of mixed materials of epoxy terminals of electric locomotive transformer Download PDFInfo
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- CN1155465A CN1155465A CN 95117816 CN95117816A CN1155465A CN 1155465 A CN1155465 A CN 1155465A CN 95117816 CN95117816 CN 95117816 CN 95117816 A CN95117816 A CN 95117816A CN 1155465 A CN1155465 A CN 1155465A
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- electric locomotive
- epoxy
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Abstract
An epoxy mixture for casting terminals used in transformer, dry transformer winding and mutual inductor winding contains the following components: bisphenol A epoxy resin (4g), polyazelatic acid anhydride (1.2g), methyl tetrahydrobenzene anhydride (1.4g), toughening agent of epoxy resin (0.8g), Fe2O3 (0.08g) and SiO2 (12.8g). Its solidifying time is 2 hr at 95 deg.C, or 3 hr at 110 deg.C, or 10 hr at 120 deg.C, or10 hr at 130 deg.C. The mixture is vacuum stirred at 100+/-5 deg.C and 0.09 Mpa for 40 min. Its demoulding agent contains methyl silastic and toluene in weight ratio of 5 to 100.
Description
Epoxy casting belongs to the high molecular polymer of chemical industry aspect, can be used as insulating material, is applied to the outlet terminal of transformer, fields such as dry-type transformer coil and mutual inductor coil.
China's existing Shaoshan 3B type electric locomotive transformer outlet terminal adopts insulator pipe flange structure, and this construction package is many, and it is big to take up room, and assembling is tired; Existing SS
4Change locomotive main transformer and adopt epoxy cloth plate structure, once sealing between terminal and the epoxy fabric swatch, sealing again between epoxy fabric swatch and the fuel tank, and the flange on the fuel tank need be processed 12 * 7.3 the seal groove of putting, the groove that processes does not generally speaking all satisfy the requirement of drawing, moreover assembling back leakage of oil is many.Epoxy terminal insulation system, the seal groove cast is come out, and is very well-behaved, and the flange face on the fuel tank is that the plane is easy to processing.So assembling is simple, is difficult for oil impregnate.
The present invention is intended to overcome the terminal structure shortcoming of Domestic Electric locomotive transformer, to adapt to and to satisfy SS
7The needs of electric locomotive main transformer.
Industrial chemicals that the present invention is selected and consumption (i.e. prescription)
6101 (E-44) bisphenol A type epoxy resin, 4 grams
Poly-azelaic acid acid anhydride 1.2 grams of PAPA
HK-021 methyl tetrahydro phthalic anhydride 1.4 grams
CMP-410 epoxide resin reactive flexibilizer 0.8 gram
Fe
2O
3Iron powder 400 orders 0.08 gram
SiO
2Silicon powder 400 orders 12.8 grams
Take by weighing the first five by above prescription and plant material weight, add in the dispensing cartridge, put preheating in the stove, 100 ± 5 ℃ of preheat temperatures 4 hours.Add dried SiO after coming out of the stove in proportion
2Micro mist after stirring by hand, is poured in the vacuum stirring jar, 100 ± 5 ℃ of 40 minutes time of vacuum stirring temperature kind, and vacuum-0.09MPa, this moment can be to die casting.
Dies cavity should be brushed one deck remover, and remover is that methyl silicone rubber and toluene are prepared by 5: 100 weight ratios.Brushed and put preheating in the stove behind the remover, 100 ℃ of preheat temperatures 4 hours, matched moulds afterwards, the sealing of all seams adds water-stop with gypsum.
Cast finishes, and sends into baking and curing in the stove, and cure parameter adopts stage by stage and heats up:
95 ℃ 2 hours
110 ℃ 3 hours
120 ℃ 10 hours
130 ℃ 10 hours
The demoulding
Put into stove after the demoulding, drop to room temperature stage by stage, can turn off the drying baker power supply, take out product after allowing furnace temperature reduce to room temperature naturally.
The present invention compares with prior art, have simple in structure, easy for installation, cost is low, long service life.Seal groove is that mould guarantees size, good sealing effect.
With 13 kilograms of compounds implementation process of the present invention is described:
Calculate in proportion and respectively expect weight:
6,101 2561 grams
PAPA 767 grams
HK-021 895.7 grams
CMP-410 513.5 grams
Fe
2O
350.7 gram
SiO
2Micro mist 8190 grams
The first five is planted raw material pour in the dispensing cartridge, put preheating in the stove, preheat temperature is 100 ± 5 ℃, and 4 hours time, the back of coming out of the stove is SiO
2Micro mist adds, and stirs by hand and open, and this compound is poured in the vacuum tank afterwards again and is stirred 40 minutes time, 100 ± 5 ℃ of temperature, vacuum 0.09MPa, matched moulds behind the mould brush releasing agent, the material that stirring is finished adds in the mould afterwards, and mould is sent in the stove solidified, during curing:
95 ℃ 2 hours
110 ℃ 3 hours
120 ℃ 10 hours
130 ℃ 10 hours
The demoulding
Continue to put slowly cooling in the stove after the demoulding, take out during to room temperature, this work is promptly finished.
Claims (6)
- By 6101, PAPA, HK-021, CMP-410, Fe 2O 3, SiO 2Can be behind overcuring in the mixture of forming as the terminal insulation of electric locomotive main transformer, lead-out wire and fuel tank insulation.After raw material prepares by weight, put into the stove preheating, pour into after the preheating in the vacuum stirring jar and stir.Stirring finishes and can pour in the mould of having brushed releasing agent, mould is pushed in the stove solidify.
- 2. according to claim 1, the feature of this mixture is:6101, PAPA, HK-021, CMP-410, Fe 2O 3, SiO 2Weight proportion be: 4: 1.2: 0.8: 1.4: 0.08: 12.8.
- 3. according to claim 1, the preheat feature of this mixture is 4 hours 100 ± 5 ℃ of times.
- 4. according to claim 1, the vacuum stirring feature of this mixture is: 40 minutes time kind, 100 ± 5 ℃ of temperature, vacuum-0.09MPa.
- 5. according to claim 1, the feature of releasing agent is:Toluene, methyl silicone rubber, its weight ratio are 100: 5
- 6. according to claim 1, the curing characteristic of its mixture is:95 ℃ 2 hours 110 ℃ 3 hours120 ℃ 10 hours 130 ℃ 10 hours
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95117816 CN1155465A (en) | 1995-12-06 | 1995-12-06 | Technological parameters and prescription of mixed materials of epoxy terminals of electric locomotive transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95117816 CN1155465A (en) | 1995-12-06 | 1995-12-06 | Technological parameters and prescription of mixed materials of epoxy terminals of electric locomotive transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1155465A true CN1155465A (en) | 1997-07-30 |
Family
ID=5081366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95117816 Pending CN1155465A (en) | 1995-12-06 | 1995-12-06 | Technological parameters and prescription of mixed materials of epoxy terminals of electric locomotive transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1155465A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063701C (en) * | 1996-05-15 | 2001-03-28 | 松下电器产业株式会社 | Terminal plate resin die casting method and resin die casting forming metal modeld evice for die casting motor |
| CN102453308A (en) * | 2010-10-20 | 2012-05-16 | 北京新立机械有限责任公司 | Epoxy resin composition for electronic product encapsulation and manufacturing method thereof |
| CN105001598A (en) * | 2015-08-21 | 2015-10-28 | 四川电器集团股份有限公司 | Instrument transformer casing |
| CN114654635A (en) * | 2021-12-24 | 2022-06-24 | 平高集团有限公司 | Method for improving surface smoothness of epoxy casting product |
-
1995
- 1995-12-06 CN CN 95117816 patent/CN1155465A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063701C (en) * | 1996-05-15 | 2001-03-28 | 松下电器产业株式会社 | Terminal plate resin die casting method and resin die casting forming metal modeld evice for die casting motor |
| CN102453308A (en) * | 2010-10-20 | 2012-05-16 | 北京新立机械有限责任公司 | Epoxy resin composition for electronic product encapsulation and manufacturing method thereof |
| CN105001598A (en) * | 2015-08-21 | 2015-10-28 | 四川电器集团股份有限公司 | Instrument transformer casing |
| CN114654635A (en) * | 2021-12-24 | 2022-06-24 | 平高集团有限公司 | Method for improving surface smoothness of epoxy casting product |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |