Letter 30042

Specs for bright dipping copper and brass [Ohio] 

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Are there any specifications out there for bright dipping copper and brass?

Bob R [last name deleted for privacy due to age of posting]
plating shop - Elyria, Ohio

Here we do Bright dipping of copper Terminals which are used in Automotive batteries.
The Process Flow is as below:
1. Cleaning : By means of Kerosene and Saw Dust
2. Rinse : Rinse the material by means of Raw Water
3. Solution Make Up: Ratio of 4:1:1 (4 Parts of DM Water : 1 Part of Nitric acid & 1 Part of Sulphuric acid all are commercial grade chemicals)Dip in the same for few seconds as the copper will melt in the solution its just a surfce preperation for the adhesion of PASSIVATION.
4: Rinse : Raw water Rinse Twice
5: Passivation : Yellow color as per u r requirement
6: Rinse : Raw Water Dipping once
7: Dryiing : any type of Dryer can be used

Regards
T.Dinakaran

T.DINAKARAN
- Chennai,Tamilnadu .INDIA

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