Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Wu-Bin Li0
Bin-Lung Ou0
Isao Nakatsugawa0
Date of Patent
June 21, 2011
0Patent Application Number
128709950
Date Filed
August 30, 2010
0Patent Primary Examiner
Patent abstract
A vanadate solution for conversion treating of surface of a magnesium alloy workpiece contains 8.20×104 to 8.20×10−2 mol/liter of metavanadate ion, 1.18×104 to 1.18×10−2 mol/liter of a polyhydroxylated aromatic compound, and balance of water. The pH value of the vanadate solution exceeds 1 and is less than 4. A method for preparing the vanadate solution is also provided.
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