日本金属学会誌

J. Japan Inst. Metals, Vol. 16, No. 3 (1952),
pp. 153-157

Protection of Aluminium and its Alloys Against Corrosion by Treatment with Acid Aqueous Solution

Hikozô Endô and Hideo Sugawara


Abstract:

Specimens of aluminium, duralumin, super duralumin, silmin, Lautal and KS-Seewasser were pretreated at the room temperature for 10∼15 minutes with various acid sald aqueoues solutions(chloride, sulphate, nitrate, phosphate, etc.) containing sodium silicate, zinc carbonate, sodium silicafluoride, etc.
The corrosion resistibilities of protective films prepared by means of the above mentioned process were compared in 3% sodium chloride solution. The zinc phosphate aqueous solution containing zinc carbonate and sodium silicafluoride was most excellent in this experiment.


(Received 1951/10/26)

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