Process for the production of a coating insulator in an electric product plan of steel, grain orientation, covered with insulating coating

摘要

Process for the production of a coating insulator in an electric product plan of steel, grain orientation, covered with insulating coating.The invention relates to a process for producing a product oriented electrical steel, grain, with values of magnetic losses are minimized, and the process includes the steps of: a) providing a electric product of flat steel, (b) applying a layer of sun. Uu00e7u00e3o phosphate insulating material in at least one surface of the electric product of flat steel.And calcination of the layer applied.In order to increase, in addition, the voltages of traction, acting in such a process on the surface of an electric product of flat steel, the invention proposes that, after an initial implementation of the step of work (b), this step of work (b) is repeated once more.So that the layers sequentially applied and calcinated in the phosphate solution insulating insulating layer is obtained.