C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
31/121, 6/4, 117
C03C 1/00 (2006.01) C23C 22/74 (2006.01) H01B 3/08 (2006.01) H01F 1/147 (2006.01)
Patent
CA 1056106
ABSTRACT OF THE DISCLOSURE Insulative coatings for electrical steels and methods of making them. The coatings are hard, glassy and smooth in nature, are easily cured and improve the magnetic characteristics of the electrical steels. The coatings are produced by applying to an electrical steel an aluminum- magnesium-phosphate solution containing Al+++, Mg++ and H2PO4- in a specified relative relationship and from 0 to 60% by weight colloidal silica on a water-free basis. The solutions contain at least 45% by weight water. Chromic anhydride (CrO3) may be added to the coating solutions to improve wettability of the solutions, moisture resistance of the resulting coatings and interlaminar resistivity after stress relief anneal. An electrical steel coated with a solution of the present invention is thereafter subjected to a heat treatment to cure the insulative coating thereon.
236704
Armco Steel Corporation
Na
LandOfFree
Insulative coatings for electrical steel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Insulative coatings for electrical steel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insulative coatings for electrical steel will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-437171