A production process of ultramicrocrystalline cut iron core for split-type transformer

Abstract

The invention discloses a production process of an ultra-crystallite cutting iron core for a split mutual inductor. The production process comprises the following steps: a, placing an ultra-crystallite belt material iron core on a winding machine for winding into an iron core, and fixing by spot welding; b, thermally heating the iron core in a gradual temperature rising way, namely, heating to 380 DEG C and preserving heat for 10-50 minutes, heating to 450 DEG C and preserving heat for 10-50 minutes, and heating to 560-600 DEG C and preserving heat for 30-60 minutes; c, rapidly cooling by adopting air cooling till the temperature of the iron core is lowered to 300 DEG C, and controlling the time period from the end of the heat preservation to a moment when the temperature of the iron core falls below 300 DEG C to be within 45 minutes; d, reshaping the iron core, loading into a mold, putting into prepared paint together for soaking in vacuum, and hardening; e, cutting the cured iron core along a symmetrical center line, ensuring the flatness and smoothness of a notch, and eliminating scattering and burrs of the iron core; and f, testing and encapsulating. The process disclosed by the invention has the advantages that the method is simple, a thermal treatment process is improved, a paint soaking step is added, a low-cost and high-performance iron core can be realized, and a very remarkable effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of design and development of electronic components, and relates to an ultrafine crystal cutting iron core, which is especially suitable for a split-type transformer. Background technique [0002] Split-type transformers are generally made of silicon steel strip rolled iron cores after cutting, but the performance of silicon steel is low, resulting in low precision transformers, so only low-grade split-type transformers can be used; high-grade split-type transformers are generally made of Permalloy Material iron core, but the cost is higher. The ultra-microcrystalline iron core has high magnetic properties, and the use of ultra-microcrystalline material to cut the iron core can greatly improve the precision of the split-type transformer, improve product performance, and reduce costs. Contents of the invention [0003] In order to solve the technical problems of low performance and high cost of transformer ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of low performance and high cost of transformer cores in the prior art, the present invention designs an ultrafine crystal cutting core for split transformers, and reduces costs by improving its production technology At the same time, the accuracy of the transformer can be improved

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