配方类型:

METAL TREATMENTS

配方说明:

Oxide Coatings

配方组成:

Reverse current, volts
Formula No.12 (Anodized Coatings from Magnesium
Time/10 min
Hydrochloric Acid/2 oz
Water/1 gal
Lead cathode
Room temperature
Reverse current
Gas carbon cathodes
Hydrochloric Acid/1 pt/gal
Sulfuric Acid/10% by vol.
M-Nitrobenzene Sulfonic Acid, Sodium Salt/5-10 oz/gal
Temperature below 150 F
Chromic Acid/16 oz
Chromic Acid/24 oz/gal
Fuming Nitric Acid
Simple immersion at room temperature
Sodium Nitrate/4-5 lb/gal
Temperature/180-212 F
Current density 100 amp/ft^2 minimum
Reverse current at 200'F and 6 volts
Sulfuric Acid/3 gal
Phosphoric Acid/1 pt
Sulfuric Acid/50% by vol
Water 2 gal
Room temperature
Sodium Cyanide/8-12 oz/gal
Caustic Soda/2 oz/gal
M-Nitrobenzene Sulfonic Acid, Sodium Salt/4 oz/gal
Temperature below 150 F

配制方法:

Use at 120-160 F for about 3 min.
Formula No.13 (Black Oxide Coatings from Steel) Immerse parts in 1-1 hydrochloric acid containing an inhibitor.