CN104269264A - Oil-immersed type amorphous alloy transformer core crack prevention and noise reduction technology - Google Patents
Oil-immersed type amorphous alloy transformer core crack prevention and noise reduction technology Download PDFInfo
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- CN104269264A CN104269264A CN201410322910.1A CN201410322910A CN104269264A CN 104269264 A CN104269264 A CN 104269264A CN 201410322910 A CN201410322910 A CN 201410322910A CN 104269264 A CN104269264 A CN 104269264A
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Abstract
The invention discloses an oil-immersed type amorphous alloy transformer core crack prevention and noise reduction technology. The technology includes: placing fiberglass gridding cloth on exposed faces of an amorphous alloy transformer core rather than the position at the lap joint of an opening of the core; coating epoxy resin on the surface of the amorphous alloy transformer core of the well-placed fiberglass gridding cloth and placing the core into an oven for curing and forming; opening the lap joint of the core subjected to curing and forming and sleeving the core with a coil according to design; closing the lap joint once again after the core is sleeved with the coil and placing a buffering pad to have an outer silicon-packaged steel sheet hermetically welded; finally, binding the lap joint of the opening of the core and coating resin glue on all the exposed faces. The amorphous alloy transformer core is fastened by adopting the fiberglass gridding cloth and the epoxy resin and is integrally packaged by adding the buffering pad, so that integral strength of the amorphous alloy transformer core is increased, vibration noises are reduced, cracking situation of the amorphous alloy transformer core is effectively improved, noises of a transformer are reduced, and the objective of crack prevention and noise reduction is achieved.
Description
Technical field
The present invention relates to transformer core manufacturing process, especially a kind of oil-immersed type non-crystal alloy transformer anticracking unshakable in one's determination and noise reduction technique.
Background technology
Amorphous alloy transformer adopts Fe-based amorphous alloy substituted for silicon steel disc to do iron core, compare silicon steel sheet, due to Fe-based amorphous alloy, there is the features such as high saturated magnetic induction, low-loss, low-coercivity, low exciting curent and good temperature stability, amorphous alloy transformer no-load loss only has 1/1 to four/3rd of silicon steel sheet transformer, be a kind of high-performance energy-saving transformer of environmental type, have vast potential for future development.When amorphous alloy transformer is single-phase, iron core is single frame open coil iron core; Three phase times mostly are three-phase and five-pole open coil iron core, and roll up iron core by 4 single frames and combine, such amorphous alloy iron core all can be opened, and is conducive to mounting coil.But due to more crisp frangible after type amorphous alloy wound core annealing, very responsive to mechanical stress, can not power under pressure, add that its magnetic hysteresis expansion and contraction is larger than silicon steel sheet, it is too tight that type amorphous alloy wound core can not press from both sides, otherwise can increase the noise of transformer, and type amorphous alloy wound core is mainly by coil support.The oil-immersed type non-crystal alloy transformer iron core that general capacity is larger at present adopts all exposed faces except opening lap-joint all to apply the thick epoxy resin of 2mm, its exposed face coated with resins glue again after opening lap-joint suit coil colligation well, object is the self-strength strengthening type amorphous alloy wound core, and when preventing transformer from running, unshakable in one's determination running out of by electric power vibrations amorphous alloy roll fragment causes Accident of Transformer simultaneously.
Summary of the invention
The object of this invention is to provide a kind of type amorphous alloy wound core that makes and there is oil-immersed type non-crystal alloy transformer that is explosion-proof, noise reduction anticracking unshakable in one's determination and noise reduction technique.
For achieving the above object, the technical solution adopted in the present invention is: a kind of oil-immersed type non-crystal alloy transformer anticracking unshakable in one's determination and noise reduction technique, comprise the following steps:
A, except opening lap-joint unshakable in one's determination, equal placing glass fibrous mesh cloth on amorphous alloy core exposed face;
B, placing the amorphous alloy core surface-coated epoxy resin of fiberglass gridding cloth, and putting into oven cured shaping;
C, complete curing molding after iron core open lap-joint unshakable in one's determination, according to design and suit coil;
Again close lap-joint after D, suit coil complete, place cushion rubber bumper simultaneously and close and has welded outsourcing silicon steel sheet;
E, last tighten opening lap-joint unshakable in one's determination, and at all exposed face coated with resins glue.
Preferably, the fiberglass gridding cloth described in steps A, its thickness is 1mm.
Preferably, the surface-coated epoxy resin layer thickness unshakable in one's determination described in step B is 2mm.
After the present invention adopts above-mentioned technique, by adopting fiberglass gridding cloth and epoxy resin, type amorphous alloy wound core is reinforced, overall package after increase cushion pad simultaneously, the bulk strength of type amorphous alloy wound core is increased, vibrating noise reduces, thus effectively improve the cracking situation of type amorphous alloy wound core, reduce the noise of transformer, realize the object of anticracking noise abatement.Production process of the present invention is simple, effectively can strengthen mechanical performance and the fail safe of transformer core, reduces magnetic hysteresis unshakable in one's determination vibrations of stretching and causes noise.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
A kind of oil-immersed type non-crystal alloy transformer anticracking unshakable in one's determination and noise reduction technique, comprise the following steps:
A, except opening lap-joint unshakable in one's determination, equal placing glass fibrous mesh cloth on amorphous alloy core exposed face;
B, placing the amorphous alloy core surface-coated epoxy resin of fiberglass gridding cloth, and putting into oven cured shaping;
C, complete curing molding after iron core open lap-joint unshakable in one's determination, according to design and suit coil;
Again close lap-joint after D, suit coil complete, place cushion rubber bumper simultaneously and close and has welded outsourcing silicon steel sheet;
E, last tighten opening lap-joint unshakable in one's determination, and at all exposed face coated with resins glue.
Preferably, the fiberglass gridding cloth described in steps A, its thickness is 1mm.
Preferably, the surface-coated epoxy resin layer thickness unshakable in one's determination described in step B is 2mm.
Embodiment:
When producing oil immersion amorphous alloy transformer iron core, first by design size and technological requirement, on amorphous alloy transformer iron core, the exposed face of (except opening lap-joint) all puts 1mm thick fiberglass grid cloth, then on the surface that placed fiberglass gridding cloth, apply the thick epoxy resin of 2mm again, put into oven cured shaping; Secondly, encapsulate after cushion rubber bumper is first put in mounting coil opening lap-joint good unshakable in one's determination, then tighten opening lap-joint coated with resins glue.
The above is the preferred embodiment of the present invention; certainly the interest field of the present invention can not be limited with this; should be understood that; for those skilled in the art; technical scheme of the present invention is modified or equivalent replacement, do not depart from the protection range of technical solution of the present invention.
Claims (3)
1. oil-immersed type non-crystal alloy transformer anticracking unshakable in one's determination and a noise reduction technique, comprises the following steps:
Except opening lap-joint unshakable in one's determination, equal placing glass fibrous mesh cloth on amorphous alloy core exposed face;
Placing the amorphous alloy core surface-coated epoxy resin of fiberglass gridding cloth, and putting into oven cured shaping;
Complete the iron core after curing molding and open lap-joint unshakable in one's determination, according to design also suit coil;
Again close lap-joint after suit coil completes, place cushion rubber bumper simultaneously and close and has welded outsourcing silicon steel sheet;
Last tighten opening lap-joint unshakable in one's determination, and at all exposed face coated with resins glue.
2. oil-immersed type non-crystal alloy transformer according to claim 1 anticracking unshakable in one's determination and noise reduction technique, it is characterized in that: the fiberglass gridding cloth described in steps A, its thickness is 1mm.
3. oil-immersed type non-crystal alloy transformer according to claim 1 anticracking unshakable in one's determination and noise reduction technique, is characterized in that: the surface-coated epoxy resin layer thickness unshakable in one's determination described in step B is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410322910.1A CN104269264A (en) | 2014-07-09 | 2014-07-09 | Oil-immersed type amorphous alloy transformer core crack prevention and noise reduction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410322910.1A CN104269264A (en) | 2014-07-09 | 2014-07-09 | Oil-immersed type amorphous alloy transformer core crack prevention and noise reduction technology |
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| CN104269264A true CN104269264A (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410322910.1A Pending CN104269264A (en) | 2014-07-09 | 2014-07-09 | Oil-immersed type amorphous alloy transformer core crack prevention and noise reduction technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617343A (en) * | 2018-12-20 | 2019-04-12 | 麦克奥迪（厦门）电气股份有限公司 | A kind of iron core packaging method enhanced using composite material |
| CN109801775A (en) * | 2019-04-04 | 2019-05-24 | 青岛云路先进材料技术股份有限公司 | Stereo amorphous alloy wound iron core and its single frame |
| CN110111982A (en) * | 2019-05-17 | 2019-08-09 | 沈阳工业大学 | A kind of amorphous alloy transformer and preparation method thereof optimizing the strapped structure of iron core |
| CN112447362A (en) * | 2020-11-02 | 2021-03-05 | 云南晨鸣电器有限公司 | Dry-type transformer |
| CN114528763A (en) * | 2022-02-18 | 2022-05-24 | 江苏金友智能电气有限公司 | Amorphous alloy three-dimensional wound core transformer noise processing method and system |
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| JPH0336714A (en) * | 1989-07-04 | 1991-02-18 | Mitsui Petrochem Ind Ltd | Manufacture of magnetic core |
| JPH03205803A (en) * | 1990-01-08 | 1991-09-09 | Hitachi Ltd | Amorphous magnetic alloy iron core and its manufacture |
| CN101887800A (en) * | 2009-05-15 | 2010-11-17 | 上海日港置信非晶体金属有限公司 | Manufacturing method of amorphous alloy iron cores |
| CN103325534A (en) * | 2013-06-26 | 2013-09-25 | 国家电网公司 | Transformer iron core and production method thereof |
| CN103559985A (en) * | 2013-11-22 | 2014-02-05 | 国家电网公司 | Embedded noise-reduction strip type amorphous alloy transformer iron core |
| CN203444929U (en) * | 2013-08-21 | 2014-02-19 | 江苏宏源电气有限责任公司 | Amorphous alloy transformer with novel lap joint processing structure |
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| JPH0336714A (en) * | 1989-07-04 | 1991-02-18 | Mitsui Petrochem Ind Ltd | Manufacture of magnetic core |
| JPH03205803A (en) * | 1990-01-08 | 1991-09-09 | Hitachi Ltd | Amorphous magnetic alloy iron core and its manufacture |
| CN101887800A (en) * | 2009-05-15 | 2010-11-17 | 上海日港置信非晶体金属有限公司 | Manufacturing method of amorphous alloy iron cores |
| CN103325534A (en) * | 2013-06-26 | 2013-09-25 | 国家电网公司 | Transformer iron core and production method thereof |
| CN203444929U (en) * | 2013-08-21 | 2014-02-19 | 江苏宏源电气有限责任公司 | Amorphous alloy transformer with novel lap joint processing structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617343A (en) * | 2018-12-20 | 2019-04-12 | 麦克奥迪（厦门）电气股份有限公司 | A kind of iron core packaging method enhanced using composite material |
| CN109801775A (en) * | 2019-04-04 | 2019-05-24 | 青岛云路先进材料技术股份有限公司 | Stereo amorphous alloy wound iron core and its single frame |
| CN110111982A (en) * | 2019-05-17 | 2019-08-09 | 沈阳工业大学 | A kind of amorphous alloy transformer and preparation method thereof optimizing the strapped structure of iron core |
| CN112447362A (en) * | 2020-11-02 | 2021-03-05 | 云南晨鸣电器有限公司 | Dry-type transformer |
| CN114528763A (en) * | 2022-02-18 | 2022-05-24 | 江苏金友智能电气有限公司 | Amorphous alloy three-dimensional wound core transformer noise processing method and system |
| CN114528763B (en) * | 2022-02-18 | 2022-12-13 | 江苏金友智能电气有限公司 | Amorphous alloy three-dimensional wound core transformer noise processing method and system |
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