配方类型:

METAL TREATMENTS

配方说明:

Coloring Metals Iron and Steel

配方组成:

Water/1 gal
Sodium Nitrate/1.5 oz
Formula No.4
Clean and immerse in 10% oxalic acid solution. Rinse and dry. Wipe
off smut and dip in 1% sodium sulfide solution.
Formula No.
Sodium Dichromate/1 lb
Potassium Dichromate/1 lb
Temperature/750-850 F
Sulfuric Acid/180
Sodium Dichromate/1.5 oz
Water/200
Potassium Dichromate/50
Temperature/210 F
Caustic Soda/8 lb
Caustic Soda/80 oz/gal
Potassium Nitrite/30 oz/gal
Potassium Nitrate/20 oz/gal

配制方法: