Coating solution for electrical steels

Details Coating solution for electrical steels Coating solution for electrical steels

C - Chemistry, Metallurgy

09

D

6/226

C09D 1/02 (2006.01) C09D 5/25 (2006.01) C23C 22/74 (2006.01) H01F 1/147 (2006.01)

Patent

CA 1117260

ABSTRACT OF THE DISCLOSURE: A coating solution for forming on electrical steel strips an electrical insulation lining having a low coefficient of thermal expansion. The solution contains (on a dry weight basis) for every 100 parts by weight of phosphoric acid, calculated as P2O5, from 10 to 35 parts by weight of Ca2+ ions, calculated as CaO, and from 70 to 200 parts by weight (dry of SiO2 colloidal; the solution contains in addition from 40 to 200 parts by weight of water for every 100 parts of P2O5. The coating solution of the invention can be easily and economically prepared, is highly stable and will produce a lining having high performance and invariable characteristics.

298512

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