Metal treatment – Compositions – Heat treating
Patent
1986-12-29
1988-11-01
Rutledge, L. Dewayne
Metal treatment
Compositions
Heat treating
106121, 1062866, C04B 904
Patent
active
047817690
ABSTRACT:
By adding an appropriate amount, 1 to 12 weight percent, based on the amount of magnesium oxide present and Loss On Ignition values of powdered magnesium metal to the magnesium oxide aqueous slurry composition used to make a separating agent composition in the making of grain-oriented silicon electrical steel, there are obtained composition, an article, and a method characterized principally by a substantial decrease in the rate of rejections of the product of the final texturizing anneal because of coating defects--such difficulties as bare spots, and metal-overlay pattern. Moreover. the magnetic properties may be improved because of improved control of the propagation of the internally oxidized zone of the steel.
REFERENCES:
patent: 4575439 (1986-03-01), Hintzen et al.
Price Leroy R.
Toker Nazmi
Allegheny Ludlum Corporation
Rutledge L. Dewayne
Viccaro Patrick J.
Wyszomierski George
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