Processing for cube-on-edge oriented silicon steel

Details Processing for cube-on-edge oriented silicon steel Processing for cube-on-edge oriented silicon steel

C - Chemistry, Metallurgy

21

D

148/8

C21D 8/12 (2006.01) H01F 1/147 (2006.01)

Patent

CA 1130180

1098 PROCESSING FOX CUBE-ON-EDGE ORIENTED SILICON STEEL Abstract of the Disclosure A process for producing electromagnetic silicon steel having a cube-on-edge orientation. The process includes the steps of: preparing a melt of silicon steel containing from 0.02 to 0.06% carbon, from 0.0006 to 0.0080% boron, up to 0.0100% nitrogen and from 2.5 to 4% silicon; casting the steel; hot rolling the steel; cold rolling the steel to a thickness no greater than 0.020 inch; heat treating the steel at a temperature between 1550 and 2000°F in a hydrogen-bearing atmosphere; removing at least 0.02 micron of surface from each side of the steel; heat treating the steel at a temperature between 1300 and 1500°F in a hydrogen-bearing atmosphere; applying a refractory oxide coating to the steel and final texture annealing the steel. - 1 -

345819

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