auroshina-process

Diamond  chemicals

Manufacturer of  acid Zinc,Nickel, Antique, Acid Gold and Neutral Gold electro-plating chemicals, electroplating plant and its equipments, plating rectifiers and  heat chambers. Offers expertise On any kind of plating system and design of delicate plants.                                                    
19,k.s.dutta road. Nimta kolkata 700049. Tel:033-25393159,Mob:9883197050/9883237618
e-mail:diamondche2008@rediffmail.com or diamondbiswas@gmail.com. Fax:033-28450446

                                  A U R O S H I N A   P R O C E S S
                    (ADVANCED  TECHNOLOGY  ON  GOLD  PLATING)


INTRODUCTION

This process replaces conventional highly poisonous gold potassium cyanide process with the following advantages as follows:-
a)       Non poisonous, neutral and stable electrolyte.
b)       Trouble free process, even easier for a lay man.
c)       Entire metal content can be exhausted by plating from the AUROSHINA bath.

INITIAL MAKE UP

 1)  AUROSHINA  R                 30 gm.
2)  AUROSHINA  L                 30  ml.

3)  GPC                                        1 gm.   

4) DE-IONISED WATER           1 ltr.                                                                                  

 

SOLUTION PREPARATION

Add required quantity of AUROSHINA R in the de-ionised water of room temperature. Stir the solution by means of a glass or pvc rod until the salts are dissolved completely.  Start heating the solution up to 60 degree centigrade or as per your requirment. Now, add required quantity of  AUROSHINA-L and  GPC. Bath is ready to start gold plating.

OPERATING  CONDITIONS

TANK                                             : Enamelled iron pot or borosil glass beaker or pvc lined tank.
ANODE                                                         : Stainless steel plate of 316 grade
ANODE CATHODE RATIO                        : 1:1 approaximately
TEMPERATURE                                          : 50 –90 degree centigrade
VOLTAGE                                                     : 2-10 volts
CURRENT DENSITY                                   : 5-40 ampere/ square feet
PLATING TIME                                            : A few seconds to a minute

MAINTENANCE

During electro-plating if the color of the gold deposition is yellowish and your demand for reddish, then add 2-5 ml/ltr of  AUROSHINA L for reddish gold deposition. If  the  plated  gold color is pale reddish, add 2-5 grams /ltr. of  AUROSHINA R  in the vat for producing yellowish gold deposition

 
FOR YELLOWISH TONE

Add AUROSHINA R @ 2-5 grams/ltr. in excess during initial make up.

 
FOR   REDDISH  TONE

Add AUROSHINA L @2-5 ml/ltr. in excess  during initial make up and  stir well  before loading.

COLOUR OF DEPOSIT
The colour of deposit will never change or tarnish in case of yellowish or reddish deposit as we introduce organic catalyst in Auroshina process for long lasting and hardness of deposit.

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