Noise-reducing transformer iron core structure and manufacturing method thereof
A manufacturing method and technology for transformers, applied in the field of transformers, can solve problems such as high cost and large vibration noise of transformers, and achieve the effects of damping and reducing vibration noise, reducing vibration noise and reducing noise.
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[0034] Such as Figure 1-8 The illustrated embodiment provides a noise-reducing transformer core structure of the present invention, which is formed by lapping several silicon steel sheets 1, and fills gaps between adjacent silicon steel sheets 1 laminated at the corners of the transformer core structure. Magnetorheological glue3.
[0035] The magnetostriction curve of the silicon steel sheet used in the present embodiment is as follows Figure 5 As shown, the subsequent simulation and related calculations on the silicon steel sheet 1 are all based on this magnetization curve.
[0036] The magnetorheological glue used in this embodiment can be prepared by the following methods:
[0037] 1) Stir toluene diisocyanate (MDI-50) and castor oil (CO) in a container for 1 hour in a water bath at 75°C;
[0038] 2) In a water bath at 65°C, add 1,4-butanediol (BDO), organic bismuth catalyst, and stir for 1 hour;
[0039] 3) Add carbonyl iron powder and stir for one hour.
[0040] Wh...
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