Making method of C-type ironic core of voltage mutual inductor

Abstract

The manufacturing method of the C-type iron core of the voltage transformer is to cut the silicon steel sheet into strip-shaped sheets according to the expanded size of the C-type iron core of the voltage transformer, and place the strip-shaped sheets in a groove to stack and stack them into strip-shaped laminations; Use two clips to clamp the two ends of the strip laminations respectively, place the clamped strip laminations on the U-shaped mold, press up and down, left and right to form a C-shaped iron core, and press both ends of the C-shaped iron core Spot welding, heat treatment, dipping paint, cut the two C-type iron core ends to size, and grind them flat. The invention can not only save time and labor, greatly improve the production efficiency, increase the interlayer compactness of the silicon steel sheet, and improve the quality of the product, but also can realize standardized assembly line production and greatly increase the output. More importantly, the scrap can be used to greatly reduce the cost. The invention is scientific and reasonable, creative in conception, maintains the advantages and technical performance of similar products, has strong practicability, and is suitable for use in various power supply and consumption departments.

Description

technical field [0001] The invention relates to a manufacturing method of a transformer iron core, in particular to a manufacturing method of a C-shaped iron core of a voltage transformer. Background technique [0002] The transformer is a very important device for the power generation, power supply and power consumption departments. It is also in a very critical position in the power grid. The connection of the transformer with the indicating instrument and the relay protection is to ensure the safe and reliable operation of the power grid and the normal It is one of the most important equipment for working and living electricity, and the structure and production quality of the transformer, especially the production method of the transformer core directly affects the quality and safety of the power supply. Although the production of transformers is a relatively mature technology, in order to improve the quality and safety of power supply and electricity consumption, accordi...

AI Technical Summary

Problems solved by technology

Since the section of the C-shaped rectangular iron core is an approximate cylindrical shape composed of multiple long silicon steel sheets, different molds must be replaced for each long silicon steel sheet of different width during the rolling process. It needs to be readjusted, so the current common rolling method is time-consuming and labor-intensive, and it is difficult to ensure the compactness and uniformity of the shape of the C-shaped rectangular core. This brings considerable difficulty to standardized mass production, and also directly affects To the quality of the product, it is difficult to achieve mass production

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