FIELD: electrical steel sheets production.
SUBSTANCE: invention relates to an installation for the production of textured sheets of electrical steel. The installation contains multi-stage inlet decompression chambers and multi-stage outlet decompression chambers, which contain a baffle that delimits each decompression chamber and has an opening for sheet passage, the shape of which allows a textured sheet of electrical steel to freely pass through the specified opening, and sealing pads located on the upper and lower sides of the opening for the passage of the sheet in the partition. The present invention performs film formation under reduced pressure on the surface of the grain oriented electrical steel sheet that passes inside the film formation chamber after the final annealing.
EFFECT: avoiding damage to textured electrical steel sheet after final annealing.
19 cl, 4 dwg, 4 tbl, 3 ex
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Authors
Dates
2021-12-10—Published
2019-03-15—Filed