DIAMOND CHEMICALS
Manufacturer of acid Zinc, Nickel, Antique, Acid Gold and
Neutral Gold electro-plating chemicals, electroplating plant and it’s
equipments, plating rectifiers and heat
chambers. Offers expertise.On any kind of plating system and design of
delicate plants. Wire galvanizing plant
19,k.s.dutta road. Nimta
kolkata 700049. Tel:033-25393159,Mob:9007575945 / 9883197050
e-mail: diamondbiswas@gmail.com. or
diamondche2008@rediffmail.com
DIAMOND
BLACK BRONZE SALT
FOR
BRASS ARTICLES ONLY
TANK
Enameled iron or PVC or Plastic vessel with a lid .
PRE-TREATMENT
Brass articles must be thoroughly cleaned and they must be
free from oils, dirts and oxide
Scales.
BRONZE SOLUTIONS
Cleaned articles should be immersed in the solution and
agitate the solution till the desired color is obtained.
PRECAUTIONS
BRONGE tank must be closed with a lid so that the ammonia
cant be driven off while the solution is not in use.
REPLENISHMENT
Replenish with more bronze salts and ammonia when the
solution becomes weak.
CONCENTRATION
BLACK BRONZE SALT …. 200 gms.
OR
JET BRONZE SALT ….200
gms.
LIQUID AMMONIA …900 ml
(Sp.Gr.O.88)
WATER
… 250 ml.
PROCESS
SEQUENCE CHART
01.Soak degrease at 50-60 degree C 11.cold rinse
by Diamond’s metal
cleaner. 12.hot
water rinse
02.cold Rince. 13.drying in a drier
03.Cathodic electrolytic cleaning at 14. lacquring
50-60 degree C.
04.Cold Rinse.
05.Cold Rinse.
06.5% cyanide dip. (optional)
07.Cold Rinse.
08.Hot Water Rinse.
09.Bronze plating.
10.Cold Rinse.
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